Added by on 2018-07-23

[Total: 0    Average: 0/5] You must sign in to vote Ask This Old House general contractor Tom Silva teaches a homeowner how to repair some structural problems in his home. Click here to SUBSCRIBE to the official This Old House YouTube channel: Time: 6-7 hours Cost: 0 Skill Level: Expert Tools List for Repairing a Damaged Carrying Beam: Bottle jack Grinder Large pipe cutter Cold chisel Hammer Level Drill Pry bar Shopping List: Temporary post Steel lally column Wood screws Masonry screws Angle iron Steps: 1. Use the jack and the temporary post to support the structure before removing any posts. 2. Remove the old lally column with a grinder. 3. Measure and mark the replacement column and cut it to size with the large pipe cutter. 4. Smooth out the bottom of the new cut with a hammer and cold chisel. 5. Put the post in place on metal plates and slowly remove the temporary post. Check the post for level before putting the full weight of the house back on it. 6. Screw the metal plates to the beam and to the floor with the appropriate screws. 7. To repair damaged beams, locate a local welder or metal shop and request angle iron, cut and drilled to the length of the beam being repaired. 8. Remove any pipes, wires, etc. currently going through the beam. Be sure to turn off the water, power, etc. before doing so. 9. Pry the joist hanger away from the beam. 10. Mount the angle iron on the jack and the temporary post. Get the angle iron in place and slowly raise the jack until the angle iron is wedged up against the damaged beam. 11. Screw the angle iron into the beam and remove the temporary post. 12. Slide any […]


  • Andy harpist 3 weeks ago

    I imagined the beam ..with its new steel angle iron attached, loaded to destruction. I can't really see those screws doing so very much to transfer the bending and shear to the hefty ..though rather short, beam. I think two thinner , large-area, side gussets bolted through might have been better.

  • future shock 3 weeks ago

    Almost landed on the guys foot lol

  • future shock 3 weeks ago

    You know thy bring Tommy out for the big time jobs

  • MyBallzGotShocked 3 weeks ago

    He stripped the gee wiz outta those 3" lag screws lol

  • Joe H 3 weeks ago

    Shouldn’t be over fastening those lag screws like that

  • 1rewd1 3 weeks ago

    Tommy ain't no plumber. Yikes.

  • Parag Naik 3 weeks ago

    And I am not going anywhere.

  • baka baka 3 weeks ago

    Why does he not simply just use an H-beam underneath and poof! Voila

  • ShakespeareCafe 3 weeks ago

    Brought to you by Festool

  • ScottDLR 3 weeks ago

    So the lally column is just held there by the weight of the house?

  • Pantomath Plugged-In 3 weeks ago

    Ohh I found this one on the side of the road 🙂 🙂

  • shane stevens 3 weeks ago

    Should have used a longer metal beam support to span from metal post to metal post. The top of each metal post would be directly under each end of the metal beam support. Instead of relying on the screws for the load. Seeing as screws have a low sheer strength. I'm sure the screws are structural grade though. Great video though.

  • J Vlogs 3 weeks ago

    and your bill is 2,000 🙂 thanks TOM lol

  • Haitham Albassam 3 weeks ago

    Really that's difficult to diagnose because normally ,sag is happening by effect of heat or load on the pipe with a sufficient length of the pipe . Though I am petroleum engineer but I am more impressed and interested with your thoughts ,ideas and workshop .

  • Paul Cudmore 3 weeks ago

    my two cents,
    I like Tommy, plays the part well.
    First, nice job on the wood blocking.
    Second, I would have installed the steel column a little different. I would of cut out about 4" inches concrete in slab and about a 2'x2' square, installed new column with adjustable bottom to lock in tightness, secured in concrete and filled in and over with concrete, the top I would of at least tried to bolt in rather than screw in.
    Third, angle iron was okay, but if it was my home I would replaced the wood joists sections by short in length temp walls to shore up floor joists and replace one single span first and then the other two wood beam spans. This could of been done fairly easy being that the basement was not finished.
    Fourth, copper pipe connection was cool, never saw one before. I'm a carpenter mostly commercial work, and back some time I was replacing a drop ceiling and I had to tie up wires, lights, air grills and some hanging copper lines. An electrician walked in and said to me, " hey buddy, you can't tie those copper pipes up with those metal wires that you are using, because metal to metal is no good with copper." Heck I didn't know then lol

  • Mark Hall 3 weeks ago

    Tommy should get an Oscar for that surprised reaction as he’s shown the problem.

  • Tommy Kennedy 3 weeks ago

    More of a Norm fan but Tom knows his stuff he had the fix in his head in seconds made it easy on himself. He is probably the best carpenter to ever have a tv show

  • Willshavehan 3:16 3 weeks ago

    First video

  • Livereater00 3 weeks ago

    Plot twist… the house caved in 3 days later.

  • Mark Hall 3 weeks ago

    I wish all YouTube videos could be this concise, informative and professional – thank you

  • Julio F 3 weeks ago


  • Milan Dičér 3 weeks ago

    you can see how tom silva is good by the fact that he work with table saws/ band saw and all sorth of saws and he has all the fingers

  • RIP Austin
    Seemed like a pretty chill guy

  • that second type of joint is still a fancier butt joint. not very strong either

  • Indy Custom Made 3 weeks ago

    RIP Austin, Gone way to early. My prayers goes out to his family, friends, and people on the show. Seemed like a great young man.

  • Justin Link 3 weeks ago

    So much good information.

  • darkknight31278 3 weeks ago

    R.I.P. Austin

  • Timothy Volkers 3 weeks ago

    Those sawstop saws make me drool.

  • volcano hi 3 weeks ago

    You shouldve prefit the drawer before adding glue.

  • CANADA 3 weeks ago

    r.i.p Austin


  • xoxo2008oxox 3 weeks ago

    RIP Austin. That said, how many home owners can afford a SawStop? I'd like to see ATOH do an episode on building your Old House Workshop on the cheap…

  • Richard Taylor 3 weeks ago

    Exactly why I watch – I learned something while watching someone else learning. Thanks.

  • Stephen Biggs 3 weeks ago

    R.I.P. Austin. i like the show very much i live Australia. i am wondering what is the blade called which actually cut the big slots in the fingers

  • mixwell1983 3 weeks ago

    Tom tricking the dude like "I'll show you another joint"

  • James Jacobsen 3 weeks ago

    The Pins were too short on the box joints. The blade needed to be raised just a bit more. These types of adjustments should be commented on as well as how loose or tight the fingers are. I guess not very DIY, more "made for TV".

  • Jeffrey Alford 3 weeks ago

    My condolences for the loss of Austin. I’ve watched Jimmy Diresta make the finger joints but I never understood how to make the opposing ends meet up till now.

  • Mister006 3 weeks ago

    The This Old House family is the best ever anywhere!

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