"John and Miles were excellent workers. They were very polite and professional. The job they did supporting my sagging basement wall looks like it should take care of the problem. They placed steel plates against the basement wall, and also buried other ones out in the yard, and connected them with steel rods. Then they torqued them, which should prevent any further sagging of the wall."
The ideal base for concrete is even, firm, and permeable to encourage drainage. Depending on your project's weight requirements, a combination of gravel, sand, or other aggregates is best. While you can technically pour concrete over grass, dirt, or an old piece of concrete, you risk threatening the concrete's stability.
Any bowing in a basement wall indicates a problem that needs to be addressed by a professional. If your basement wall bows more than 1 inch, it's time for an inspection. Generally, a wall can bow up to 30% of its thickness (around 2.5 inches for an 8-inch-thick wall) before it becomes an urgent situation. Bowing of 2 to 4 inches is more straightforward to fix than bowing of more than 4 inches, which will require significant repairs. If the bowing is more than 6 inches, the wall will likely need to be replaced. The sooner you address the problem, the easier and less expensive the repair will be.
Yes. Foundation walls are always load-bearing.
Do some research before hiring a concrete contractor . Consider asking whether the contractor is insured, if they can provide references of past clients you can contact, and if this type of work requires a permit. Another potential question is how long they guarantee their work.
It's safe to assume that all exterior walls are load-bearing, or at least have load-bearing characteristics. Some older homes feature porches or bump-outs that don't rest on the home's foundation. However, they still must carry the weight of the roof section they support. Walls containing floor-to-ceiling glass or other non-structural elements must use post and beam configurations to meet load-bearing criteria.
The Wolverine, MI homeowners’ guide to concrete wall construction
From average costs to expert advice, get all the answers you need to get your job done.