Lowering your Basement | Step by Step Underpinning Explained

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Lowering your Basement | Step by Step Underpinning Explained | How to Lower a Basement

Рет қаралды 397,379

Күн бұрын

Looking to lower the basement in your personal or investment property? Stuck trying to figure out the proper steps to accomplish your underpinning project? Pay close attention to this video as Darren Voros does a full walkthrough of one of his underpinning projects from start to finish and goes into amazing detail on how you can achieve these amazing results!
Join Canadian real estate investor and developer Darren Voros as he dives into the topic of underpinning! Darren starts off the video by explaining what underpinning consists of and why it is important to know if you are ever looking to lower a basement floor in one of your properties. Darren does a full walkthrough of the three phases of underpinning and explains a few different methods you can use when going through the process yourself.
Darren also goes into detail on the process of installing the plumbing, sump pit, and interior waterproofing and ensures you will be equipped with all the knowledge necessary to complete any underpinning project without missing a single step. Lastly, stay tuned until the end of the video as Darren breaks down what it cost for him to have this entire process completed.
For more information about this project or any of Darren's future projects feel free to reach out at info@darrenvoros.com
****DISCLAIMER:
With any and all investing you should always obtain independent legal, taxation and financial advice from a licensed professional before investing any of your own money.
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Darren Voros
Darren’s diverse skillset has taken him to many stages around the world. He has been featured as an on-air renovation expert on “The Goods” (CBC) and “CityLine” (CityTV). Darren was also the behind the scenes contractor on “Save My Reno” (HGTV) and “Game of Homes (W Network).
Darren is an accomplished real estate investor, trainer and coach. He controls a portfolio of properties worth just over $10,000,000 and has travelled across North America educating, inspiring and motivating audiences on the subject of real estate investing, financial independence and financial literacy. Darren’s willingness to give back prompted him to launch his KZfaq channel in 2020 in order to have a wider reach in educating investors.

Пікірлер: 425

@jimpie231 2 жыл бұрын

We actually did something like this 40 years ago. We had a 3 story apartment building with 6 …4 room rental apartments. We noticed that the brick had cracked and was moving away from the building. We called a local contractor and he bid the job for $10,000, just to stop the brick from moving. I had a cousin that was this type of engineer in the old country (Poland). He suggested we did the foundation from the outside and pour concrete under the footing. This being an English basement, the footing was only 4 feet below the ground. We dug by hand the west wall for 15 feet and put concrete under the footing that was half exposed. The next weekend we did the north wall the same way. We then put foundation coating (tar) on the new concrete and covered up the hole thing. We used premixed concrete in bags and mixed everything in a wheel barrow. It was hard work. The repair worked and the brick did not move any further. We repaired the brick that had separated. The job cost $1000 and a lot of free family labor. Jim PS…..the reason the wall moved was a dry well that was in the front yard was too close to the house and some settling took place, bad design by…?

@CrosshairLunchbox 8 ай бұрын

Just as informative as This Old House. Whoever you hired did an impeccable job.

@tonymujan3097 2 жыл бұрын

We are waterproofing company in Canada and we put the Delta membrane all the way up to the ceiling not just the lowered section. Also we would run the Delta membrane throughout the floor so it's completely enveloped so that no hydrostatic pressure water would make contact with the concrete slab

@brotherbill1000 2 жыл бұрын

As a flooring installer, I like what what your are saying! Not enough builders/engineers consider hydrostatic pressure.

@Tatersalad812 9 ай бұрын

@@brotherbill1000 lol 100 year old farm house here with a very high hydro. drilled a 3/4 hole in the floor and had water spouts. 100gal a min sump pumps. good times!!! 6 inch tile from pit to creek did away with all 3 pumps. hand digging craw space now and will be sealing it up properly

@kingfloydz3031 Жыл бұрын

Can you do more construction videos?? The way you elaborate and explain things in detail is very clear

@DarrenVoros Жыл бұрын

Thank you. I appreciate the kind words.

@ikesquirrel 2 жыл бұрын

It's a good idea to put rebar pegs between the sections to pin them together.

@danielrutherford9456 2 жыл бұрын

I’m honestly surprised that wasn’t required. Those underpinned sections will now settle independently.

@paulrnash 2 жыл бұрын

Yeah, really surprised the see a general lack of steel.

@lostintime8651 2 жыл бұрын

I started my basement with shovels and buckets. Then I got smart. I bought an electric rototiller for about a hundred bucks. Then I just made piles of loose dirt. And called a company that had a vacuum truck and they suck the piles and took them away.. pure genius..

@gunfisher4661 Жыл бұрын

I would have opted for key ways that would help on keeping the water from bleeding thru the wall later.

@POLOLOUS3 Жыл бұрын

@@lostintime8651 I picked up an electric dirt conveyor made for basements for $400 and sold it a couple years later for $2000. Had some ledge and picked a ton but a roto tiller would have been great for 3/4s of mine. Definitely an experience in full house remodels I will never forget.

@buelowexcavating 8 ай бұрын

Great video, information, procedures, ideas and work! A neighbor hired and an engineer that charged hime about $40,000! I have done a few of these with no engineer. One job, with one helper I removed about 210 cubic yards of dirt, foundation and walls. We supported the house as we dug it out. I did this in one day, it was in good working conditions with no problems. What I use on jobs depending on the conditions is a CAT 1 1/2 yard track loader, Bobcat mini track loader, conveyors and a back hoe. The inspector said this was the best design and constructed job he had seen. I sometimes sub out the concrete work, if it is small I will do it myself. I will not work for someone if they will not install the pex pipe. Before this policy had I too many people call me for a price to tear out their new slab and put in in floor heat!

@grdelawter4266 2 жыл бұрын

I am a recently retired building inspector and I would just like to say that I wished every homeowner/contractor did the work correctly as portrayed in this video because my job would have been made so much easier. After all these years I’m really happy to be retired because it seems like every project I had to educate everyone and argue with the ones that were too thick headed to understand! This job was well done and I would pass with flying colors! Let me sign that inspection card!

@DarrenVoros 2 жыл бұрын

That's amazing insight. Thank you for sharing. Are you sure you don't want to come out of retirement? We could use some good inspectors in T.O.

@ubermenschen3636 2 жыл бұрын

Gr Delaware::: I don’t know your employer, but I suspect your boss would not agree with your opinion that “This job was well done and I would pass with flying colors!” Notice the new underpinning footings are constructed as several individual piers along the perimeter of the building. First error: the new footing needs horizontal reinforcement steel ( rebars) at top and bottom tying together all the individual footing piers. Second error: each new underpinning footing piers needs vertical rebars tying together the new footing to existing footing. Third error: the new footing needs rebar dowels tying together the new footing to the new slab. Fourth error: the constructed concrete slab had no rebars; it needs at least the minimum rebar density of 0.007. Fifth error: need shear reinforcement placed in each column pad foundation so as to resist punch shear. Sixth error: need perimeter rebars, typically #4 rebars, around an opening in the concrete slab. Seventh error: floor joist supported by masonry wall shall have positive connections each capable of resisting a horizontal force of about 300 lbs/ ft. Possible eighth error: the masonry wall appears to be unreinforced; unreinforced masonry must be reinforced when major structural renovation is made to the building as required in the building code. As to your “Let me sign that inspection card!” The Host of the Apprentice would say, “Your fired!”

@mareknosek9377 2 жыл бұрын

I was wondering why he wasn't using reinforcing Rebars? pouring concrete on a dry section. What is your thaughts? Thanks

@sohailchaudry2240 2 жыл бұрын

@@ubermenschen3636 Some excellent observations. The rebar is in my opinion an absolute must. Really makes a huge difference in strength and tying everything together.

@williamjackson5942 Жыл бұрын

@@ubermenschen3636 The host was fired!

@marinellainvest8150 3 жыл бұрын

What an incredible undertaking Darren! Love the idea of the radiant heat in the basement, it's efficient, energy-saving, and cozy for the people who will live there.

@DarrenVoros 3 жыл бұрын

We're using it as our main heat source throughout the house not just the basement. I'll have to do another video on that soon.

@marinellainvest8150 3 жыл бұрын

@@DarrenVoros that sounds like a good idea, it would be definitely interesting

@confidentlocal8600 2 жыл бұрын

I have electric radiant strip heaters (also known as "cove heaters") in my house. They look similar to baseboard heaters but mount up on the wall near the ceiling. The face plates get up to 300 degrees which does a terrific job of warming the floor and other surfaces, including furniture. Gives a very cozy feel similar to a fireplace. The heat pump provides baseline heat most of the time, and the cove heaters give us zoned control. The operating cost hasn't been too bad for the level of comfort.

@steveleonard5206 8 ай бұрын

Fascinating video and wonderful to see an older structure renovated and not simply removed for the new build. In Toronto/Mississauga single-family neighborhoods consisting of homes from the 50’s & 60’s, the trend is to tear down and build new that max to the original setbacks. This dwarfs the remaining lovely old bungalows. It is very sad to see the transition.

@gordonbrown6793 Жыл бұрын

When I was in my late teens my father got me and some friends to dig out our cellar which extended under the back third of the house. The old ceiling was about 5ft and we dug out about 2ft more to make a decent room. Then we extended under the next third of the house where the ground level was about 2ft below the floor joists, removing about 12 skip loads of earth so he could put in an internal staircase. We actually dug below the foundations of the 1890's house which consisted of the bottom course of bricks corbelled out by a half sitting on about 18" of cinders then put in strip foundations and built up blockwork walls and finally backfilled between the blockwork and the old wall/foundation with concrete a section at a time. That was 40 years ago and there's been no movement since.

@mattgrizz1153 2 жыл бұрын

This is by far the best video explaining underpinning I’ve watched on KZfaq. What area do u work in?

@DarrenVoros 2 жыл бұрын

Thanks Matt. I'm an investor based in Toronto, ON.

@zachrawlings6523 2 жыл бұрын

Did you mention how they tie the new concrete into the old? Drill and epoxy rebar or adhesive applications? Interesting to see how this is all the rage in city building homes in england because there is no other direction in which to expand...lol.

@archangel20031 8 ай бұрын

Drop the basement 20 feet, build your dream survival shelter/gun room, then put back the basement floor like normal..

@michaelduffy5691 2 жыл бұрын

Since the new foundation is NOT monolithic, rebar should have been installed in the foundation pour with the rebar overlapping at least 24 inches. Currently your new foundation is a series of unattached pier footings.

@emeltea33 Жыл бұрын

Was going to ask about this exact thing.

@MrAalejandro75 8 ай бұрын

Disclaimer up front. No engineer here. That said, I was thinking the same while watching the video. Im wondering if the following was considered with the non-use of rebar... Each key's rough and uneven edge provides subsequent pours something to bite into. Also, the ground at each key has supported weight for quite some time, and so it's packed and solid. There's the step (or "bench") at the base with the floor poured up against it. There seems to be appropriate joisting to support weight distribution and it doesn't appear that any specific key stands to be overloaded. I dont know enough to make any of this an argument. Simply asking if the decision not to use rebar was made on any of the above. I'm fascinated by the subject and enjoyed this very well made video and appreciate the work that was done. I do have another question with regard to the use of waterproofing membranes inside the home. Could holding the water behind them compromise the integrity of the masonry (concrete/brick) over time? I've never used them and don't understand how they work. Water moves in the direction of gravity and where's there's the least resistance. It seems that membranes applied against masonry walls would present the outward resistance and slow the movement of that water, keeping it in the brick/concrete longer.

@Joseph-yh4pg 8 ай бұрын

10:26 The “bench footing” is also needed to support the weight of the entire building. It looks to be about 8” thick and 24” deep which is about right to support this building which has brick walls about 1’ thick and is at least two story. Bench footings are all we see in my area though we just call them footings. This is a great video. Learned a lot. Thank you

@BigBrotherIsTooBig 8 ай бұрын

Good questions. I can't answer most of them, but I can answer about the membrane. If you look closely, you can see it's dimpled. This keeps the vast majority of the membrane away from the foundation, giving water a place to escape. In this case, they have installed a French drain that runs into a sump pump.

@c4fishfood 8 ай бұрын

The way it is shown here is how underpinning is done. The “hit and miss” way of excavating means that there is no way to overlap the rebar. Depending on the location it may not be necessary, but if you did need to interlock the adjacent underpins then the only way would be to either fully lift and shore the building (to allow for a continuous excavation/pour, or (depending on the loads) you could drill and dowel bars into the primary underpins when building the secondary ones.

@KoryMacKinnon 3 жыл бұрын

Radiant in floor heat is so worth it! Did it in our own house. Great video Darren! Looking forward to more videos on your channel!

@DarrenVoros 3 жыл бұрын

It's the best kind of heat. Thanks for the kind words Kory. I follow your content as well. A great compliment coming from you.

@bishopknight7710 Ай бұрын

Amazing video. I’ve been trying to understand this process to gauge if it was an option for me. I’ve watched dozens of videos of people digging out basements but this was the first to break it down and explain how it’s done step by step so actually have clear idea of what’s involved. Many thanks for the clear walk through.

@winstonwyckoff7237 2 жыл бұрын

I WISH I could get a perimeter underpinning done for $400/ft. I am stabilizing a shifting/cracked (no rebar) concrete foundation in a 65 yo house on medium clay. All accessed from the outside. 210 LF. Should be around $85k. Bids range from $170K- $280k. Going with helical piers might save me about $50k, but half the engineers say it needs to be "capped" (essentially a partial underpinning) before the piers are set or sometime in the future, the foundation between the piers (23 of them!) will settle and the local contractors will need another infusion of $$. As best as I can tell, the "capping" (weird because it's under the existing foundation, I think) adds about $50k, so it's a wash. GREAT Video, btw. Lots of excellent information in less than 20 minutes. (Many arrogant inspectors and contractors have spent more time just telling me how many years of experience they have...)

@punicwar Жыл бұрын

Yours sound exactly like mine. 800 sqft house with poured 4ft deep foundation with no rebar. cracked due to settling on clay. I planned on doing this once i get an engineer to give me the plans. need a wider base to support the weight of the house. maybe double the width at the bottom. I would over engineer the rebar though i dont want to have issues in the future. need to find me a structural engineer that can let me know if this is viable.

@sohailchaudry2240 2 жыл бұрын

Well done Darren. I started building in 1997 in Toronto. Started with Single family homes and now have "graduated" to land development and condominium builds. When I used to underpin we tied the Pex pipe to wire mesh. I would love to know why it was not done in the above video.

@donhozy 2 жыл бұрын

Very informative. The editing was great. Very well put together! Thank you!

@AJohnson115 Жыл бұрын

I’m doing a similar project but the engineer that’s designing it wants to do horizontal rebar between each poured bay. And so I’m using hydraulic jacks to dig out 6 to 7 foot wide sections at a time even though I’m only coring 3 feet at a time because I’ve got all this lap rebar hanging out.

@marcfavell Жыл бұрын

what a my first construction jobs when I was 16 was digging with a shovel and pickaxe doing exactly this, the no hydro connection at the home so they brought in a generator through part of the wall that was opened up and my dummy boss forgot to remove the generator untill after the wall was repaired 😂😂🇨🇦

@Salt-N-Preppa 8 ай бұрын

You answered every question I didn't know I had! love(d) seeing every phase so clearly & concisely laid out!

@lambsbecomelions8997 2 жыл бұрын

Wonderful video!!!! Very nicely done, well explained and easy to follow along! As a former contractor, this was a great job, done by the contractor. You gained a new subscriber!

@DarrenVoros 2 жыл бұрын

Thank you very much!

@Scott_Terry 8 ай бұрын

Thank you so much for this! You're a role-model for the rest of us. I've been interested in basement digouts for years and am contemplating doing the process on two of my properties. ...also, how dare you not show us the finished product?!?! :D

@Junctionist 2 жыл бұрын

400/ft. Thank you VERY much. Will use that as a guide to get estimates. 50x20 footprint. If I can get it done for that it would be lots less than I expected. Looking at a quote I got from 2017 for $550/foot. Must be the competition in Toronto.

@MrHellenas23 2 жыл бұрын

In NY its min 8 feet apart for the pins. If closer, then the engineer has to provide structural stability calculations to the dept of buildings that is safe

@marcsmith3748 10 ай бұрын

The walk through was much appreciated.

@DarrenVoros 10 ай бұрын

Glad you liked it.

@hunts318 3 жыл бұрын

Superbly executed, and highly educational. Thank you.

@DeadCat-42 8 ай бұрын

Tried to do this in my 1859 brick farm house. Im six two so needed a few inches for comfort. No problem as the fieldstone three feet thick foundation went far lower than the dirt floor. Found a large brick tunnel, evedently it was a wibe cellar (used to be a winery) and was used as part of the underground railroad where they would hide slaves crossing the Ohio to freedom. . Ive been chopping away at the old grape vines and they are very productive now. I prefer brewing so. I may make some wine and beer.

@habibsarr6262 2 жыл бұрын

Waaw I’m impressed… hopefully I didn’t proceed with the contractor who wanted to this in my basement as I didn’t understand the process… wish to see the project completely done … 5 star ⭐️ buddy

@ubermenschen3636 2 жыл бұрын

@16:38, notice the concrete slab has no rebar. Slab will develop cracks. Notice also there is no rebar connecting new concrete footing to new concrete slab - not a good design.

@denissol Ай бұрын

Highly Valuable. Thank you Darren :)

@Reality_TV Жыл бұрын

$56,000 for the value add? That's GREAT! Thank you so much for putting this video together! This is absolutely awesome. Liked & subscribed! Thank you Darren. I'm researching how to do this to a property I just brought to flip. This was an absolutely perfect solution.

@DarrenVoros Жыл бұрын

Glad it was helpful!

@jan-ainsleylopez-mills6552 2 жыл бұрын

This is great, but what about the reinforcement? Would like to have seen the cages.

@TheTexasmurph Жыл бұрын

Another extremely informative video Darren! 🎉

@DarrenVoros Жыл бұрын

Thanks Evan!

@rmgnair 5 ай бұрын

Great video with ton of information for people like me who has a plan for converting a crawlspace into a basement. I was wondering why I-sections are not used to support instead of many posts.

@Hessi 2 жыл бұрын

That is very fascinating. The house has no continuous foundation, but only a thin strip of concrete on which bricked? Furthermore, the new, deeper foundation is not physically continuous? It's basically individual blocks now. Reinforcement would not have done anything because there is a crack between the concrete blocks every time? Our small 1960's house has a continuous wide strip foundation under the walls. I never thought that such a large apartment building could stand on the bare ground. We'd also like to "raise" the basement, but we're afraid there's a reason the basement wasn't dug deeper, and we might hit rock.

@basilkingsley 2 жыл бұрын

Just what I needed to watch. Thank you. Subscribed!!!

@DarrenVoros 2 жыл бұрын

Awesome! Thank you!

@rodneydangerfield7153 2 жыл бұрын

Thank you, Darren, for the best underpinning video on KZfaq!

@tonywilliams4066 8 ай бұрын

13:20 was my burning question: What about water seepage? I like the water proof membrane. And I didn’t know you could place drainage tile on the inside. This whole project is awesome! I want to do this to my basement!

@mikeobrien7702 8 ай бұрын

If the house sitting on any foundation is a framed structure it is far easier, cleaner and probably cheaper to have a house mover come in and raise the house up off the foundation, last up a row or two of concrete blocks tied into the existing foundation then lower the house and bolt it back down. The last time I had this done the mover was in and out in 4 days.

@MrLamu8080 Жыл бұрын

This is the best video I had ever seen of this process I whish I could fo this to my house, great information good job

@camelface1 2 ай бұрын

Great video! Awesome to see all that progress. I am curious about rebar in the footings and slab, and seeing it all tied together though.

@Ophorey 12 күн бұрын

hi, i enjoyed your underpinning process! very informative and encouraging

@zteaxon7787 2 жыл бұрын

Awesome project and explanations! Y Thank you! Extremely valuable to assess how realistically feasible something like this is.

@dlg5485 2 жыл бұрын

This is the most informative underpinning video I've seen, by far! I own a 1960 brick home in Ohio that currently has 6'10" finished basement ceilings. I am planning a complete remodel of the property in a few years and I am considering dropping the floor to get a 8'6" ceiling height. My foundation is much smaller than this property (basement is about 1000sqft total), but based on the cost of this project, I suspect it would still cost about $25,000 USD to complete my underpinning, which is about 25% of my total budget for the remodel. One thing that isn't clear from the video is whether or not all the waterproofing/management, drainage, sump, etc were included int he price. Also, it doesn't look like you added any rebar to tie into the existing footer. Finally, did you consider using closed cell spray foam to insulate under the slab? I think it's a superior option because in addition to being an excellent insulator it is also an effective vapor, moisture and radon barrier all in one...especially if you run it continuously up the foundation wall into the rim joist.

@bladimirmoran704 2 ай бұрын

Excellent video, very clear details. Cheers

@2Fast4Mellow 8 ай бұрын

The previous owner of our house did an underpinning early around 2002/2003, but I have seen pictures were they used conveyers to move the dirt out of the basement.

@TheRtRevFloydRBlair Жыл бұрын

Great video thinking of doing this on an old house creati g a 9ft basemen5 for more living space

@DarrenVoros Жыл бұрын

9ft ceilings in the basement doesn't even feel like.a basement anymore.

@TheRtRevFloydRBlair Жыл бұрын

@@DarrenVoros yep that's the idea

@stoveguy2133 2 жыл бұрын

Did same job on grandpas 1875 house in Stillwater. Whole house redo. Next to park. Nice.

@robsolg 3 жыл бұрын

I’m doing a research project and am able to use this as an example for my presentation

@DarrenVoros 3 жыл бұрын

Ya go for it!

@MTAfrankie 2 ай бұрын

This was very informative and extremely appreciated. Thank you.

@rodneyfagan9762 2 жыл бұрын

Great video! But I am wondering why you didn't use rebar in any of the new concrete you poured?

@MrErixair 2 жыл бұрын

I'm wondering too! Also I wonder if they mixed Helix in with the concrete. Helix can do away with the need for rebar but I would think the cold joints would need rebar to keep the individual pours aligned.

@onetwothree4148 2 жыл бұрын

I guess it's no different than an old stone foundation... But why not use rebar?

@MattBroxD 8 ай бұрын

This guy is an alien, didn't blink once. 👽

@jamesford8315 Жыл бұрын

Fantastic!! I learned something new today. Another bullet in my bandoleer. Thank you.

@rabeezyoud 3 жыл бұрын

what steps do we need to take to deter radon from entering the house home? Thanks you! Your videos are amazing and helpful! Thank you!

@DarrenVoros 3 жыл бұрын

We put down gravel, a layer of 6 mil poly, then the 2" of rigid foam and then radiant infloor pipes and then the concrete. This area is not known for radon but if it was there are some additional measures that could be taken.

@rabeezyoud 3 жыл бұрын

This is amazing!! Indeed. Would be really helpful to know how the main wall support beam/wall was built, then removed the support pole. Any idea how? Thanks!

@DarrenVoros 3 жыл бұрын

All of the bearing walls were removed with temporary shoring post and beams. Support on either side of the load bearing wall and then remove the structure. Once that's done, you can reposition the load bearing temp walls to make it easier to work around them. Hope that helps.

@riskitallcrypto99 2 жыл бұрын

Why is there no rebar hanging out of form 1 to connect to form 2 when poured?

@zakglove6536 Жыл бұрын

No rebar? Shouldn't each section be tied to another?

@ichibanxeo6447 8 ай бұрын

if it was my house I would also add horizontal sectional rebar to tie each section together to prevent shifting.

@kingfloydz3031 Жыл бұрын

Wow what an informative video. I’m from Toronto as well. Thank you for the insight!

@DarrenVoros Жыл бұрын

Glad it was helpful!

@ubermenschen3636 2 жыл бұрын

@5:41, missing rebars @top and bottom. Stirrups increase shear capacity, too. Your civil/structural engineer isn’t complying with building code.

@brotherbill1000 2 жыл бұрын

I thought that there would be rebar galore hanging out of the sides of the walls myself. I formed basements for a while in Manitoba and we would have had at least a couple 1/2" rebar in there.

@vijaydave6278 3 жыл бұрын

Vow. What a great piece of Civil engineering

@DarrenVoros 3 жыл бұрын

Right! The brilliant people who think these things up are amazing.

@patty109109 Жыл бұрын

Super interesting. This is a *hideous* amount of work and seems to me the most brave renovation one could do.

@thomass2935 2 жыл бұрын

Great video, perfect actually. Thank you Darren!

@DarrenVoros 2 жыл бұрын

Glad you like it.

@thevillain8151 8 ай бұрын

New York City needs more of this instead of tearing down the whole structure and building it back the same height, but sometimes they redo even bigger buildings in its place which is good but the costs driving up the rent and no one can really live here.

@danieljones741 3 жыл бұрын

...brilliant, a great help for me in the job i'm looking forward to completing!

@DarrenVoros 3 жыл бұрын

Glad it helped. It's a fun process to go through.

@danieljones741 3 жыл бұрын

@@DarrenVoros ...thanks, again. i've started by insulating the roof and tweaking a few centimetres out of the plaster under the rafts in the attic flat. got loads of irons in the fire right now and i'm letting all the ideas i'm seeing here gell and take on the form of my to do next list. The family think i'm crazy!!!!

@davidelzer 4 ай бұрын

great explainer. I'm inspired for my own basement project! 😁

@Villarreal308421 Жыл бұрын

That was amazing, very cool and insightful. Thank you!

@DarrenVoros Жыл бұрын

Glad you enjoyed it!

@anitajames7336 11 ай бұрын

Fantastic job explaining this process - Thank You!!

@DarrenVoros 11 ай бұрын

You're very welcome!

@jaro2450m 2 жыл бұрын

Look like every state is different. You can't digging any of section without supporting joists on temporary beam and columns to take pressure from existing fundament when you start digging underpinning in Cambridge Massachusetts .

3 жыл бұрын

this is a very complete work! thank you sir

@DarrenVoros 3 жыл бұрын

Thanks for watching and for the kind words.

@antoniomarine1567 2 жыл бұрын

Great and informative video! Thanks for posting!

@DarrenVoros 2 жыл бұрын

Glad it was helpful!

@toddh281 2 жыл бұрын

At this point just find a new home... wow lot of work.. stay safe

@user-me8ot1iw1q Жыл бұрын

I remember my father lowering our basement ,the man down stairs was not happy !

@DarrenVoros 11 ай бұрын

I see what you did there. Nice work.:)

@Laguna2013 2 жыл бұрын

Do you regret giving your mandolorian armor back to Mando?

@FallLineJP Жыл бұрын

At 15:00 - what material is the under floor insulation and what are those clips holding down the pex tubing called? I had a bear of a time trying to route pex under my ice rink liner. This looks like a better solution. 👏👏👍🏻

@mrrightpositive Жыл бұрын

Great job the best explanation I been looking for to do my basement bless thank you so much for share

@markpalmer7832 8 ай бұрын

No small mistakes in this project...I agree that you should have tied the project together with rebar.

@dingai 2 жыл бұрын

Thank you thank you for such incredible teaching - I am looking at a project like this sooner or later, and this makes us feel like we have a much better sense of what's going to be involved!

@DarrenVoros 2 жыл бұрын

Glad it was helpful. Thanks for watching.

@mssumerloving 3 жыл бұрын

This is extremely helpful and just plain cool!!

@DarrenVoros 3 жыл бұрын

Glad it was helpful! Thanks Ibi!

@mr8966 Жыл бұрын

Terrifically done video. Thanks for putting this together. Very informative.

@normbograham 2 жыл бұрын

I'm thinking the walls, will have an increase in hydrostat pressure. I'd almost like to see a second wall, inside the foundation with 6" of stone between the two providing additional support perhaps 6' high which would act as one with the foundation, but you did allow the water to move to thru the dimples, so, you are not "increasing" it by restricting the water flow, You are increasing it by surface area, and height. (b.t.w. I did the math for retention walls for a concrete company. there is a triangle of weight, when you went down, you increased the weight, without increasing the wall width. As a math guy, that's what I'd do.).

@DarrenVoros 2 жыл бұрын

We rely on the engineers to tell us what to do and if the load calculations are correct.

@MV-wb2cz 2 жыл бұрын

@Norman Graham Structural Engineers in Ontario are highly educated and Ontario Structural Engineering Codes are very strict and the factor of safety is really high there. It is not as simple as you put it as there is also rebar consideration within the new foundation wall & footing which adds to the structural integrity of it. You simply do not have enough information to make a statement as you did by starting this comment. If you want, go to university in Ontario for Civil Engineering, then work for a firm for 4 years before you become an engineer then you can make more accurate assumptions about projects like this.

@normbograham 2 жыл бұрын

@@MV-wb2cz i have two engineering degrees, and worked calculating retention walls. none of my walls have budged.

@onetwothree4148 2 жыл бұрын

@@normbograham sure, but you have no idea how thick that wall is or how much load it has above it. A lot of older homes weren't built to minimum possible specs, so you have no idea whether these changes are pushing the limits now

@andruw9011 Жыл бұрын

Thanks Darren for the video! Is it possible to still live in the house while the underpinning is going on?

@DarrenVoros 11 ай бұрын

Ya 100%. People do it all the time.

@charlescooper300 8 ай бұрын

Have you ever considered a Hydrovac truck to remove the material from the basement? It would eliminate all three machines you discussed plus eliminates the bins.

@kenl2861 8 ай бұрын

This was awesome. Nice job, and Thank You!!😊😊😊

@zefrum3 2 жыл бұрын

would have really enjoyed seeing the actual steps, the planning and work

@mikethewheelchairguy 2 жыл бұрын

Great video, well done! Thank you for sharing. I'm wondering how they conquered that load bearing middle section while still supporting the load? That's the only thing missing. Thanks again.

@ridvanaziri601 Жыл бұрын

Amazing explonation thank you

@DarrenVoros Жыл бұрын

You are welcome!

@manoftheyearkp7158 6 ай бұрын

I really wanna under pin my crawl space but to hire contractors is very expensive. I would like to give it a try with a few of my buddy's but I'm a Lil scared to do the job. It looks like it's very doable own your own but it's still that fear factor in the way.

@ArchersPlace Жыл бұрын

Hey! Question for you, sorry if you mentioned and I missed it. I was looking to do my own relevelling, and support correction for my 120 yr old east coast home... but now wondering about lowering and making a full modern basement. Could you shed light on a average cost to do just the depth excavation and new pour? Appreciate any ball park figure for reference. My crawl space is about 5 feet in height, no concrete floor. All exposed soil. Some of the foundation is cinterblocks, some in stone and mortor.

@DarrenVoros Жыл бұрын

Pouring a new slab should run you anywhere from $7-$10/sq ft.

@georgeschurter4769 2 жыл бұрын

Great video- Question- Is there some type of underpinning for a house that has a dirt floor basement. ( 8 foot at end and 4 foot at other end ? )

@JOATradesLLC 2 жыл бұрын

Doing just that to my aunt's place right now. It is set in a hillside in a split style floor plan with a stepped foundation. There is a walk space of 21'x14' that we are converting to a great room. It was 12' dirt to joist on one side and 8' on the other rising 4' across the 14' depth. We are chosing to frame the floor with a crawl space because bringing in ABC would have been by hand in 5 gal buckets carried up ladders. Framing will be way easier. We are placing in triple 2x8 open cribbing every 2-3' to allow for rebar placement. There is vertical rebar epoxied into the existing foundation wall through the footer in every section. We are pouring a step footing on the interior sides and a straight on the exterior (dirt soil) we are creeping our soil nice n flat like in this video. Where the piers butt joint the is a 2x2 on the form to key lock the pours. In some places we are only adding 8" of footing in others 42".