A structural engineer
Independent of any contractor. Can assess whether there is a structural problem and write a repair scope that contractors then price.
A Wall That Bows or Leans
This guide does not diagnose your foundation. It helps you decide who to call and what to ask.
A wall that bows inward or leans is a structural question, not only a water question. It is worth getting an assessment from someone who can look at the whole wall and the soil around it.
Repairs for walls can range from reinforcement to excavation and rebuilding. Which one fits depends on the assessment, not on the product a company sells.
Get it looked at soon if
- You can see the wall bulging or leaning.
- There is a long horizontal crack along the wall.
- The bow or lean seems to be getting worse.
If you think there is an immediate safety risk, leave the area and contact your local emergency services.
Who can assess it
A foundation repair contractor
Can look at the problem and propose a repair. They sell the repair, so ask what else could explain what you see.
A home inspector
Looks at the whole house and points out what needs a closer look. A general inspection is not a structural assessment.
Services that may come up
Questions to ask every contractor
- Do you recommend an engineer's assessment before any repair?
- What reinforcement method do you propose, and what are the alternatives?
- Will an engineer be involved? Who hires them?
- Who applies for any permit and books inspections?
- What is included, and what would cost extra if you find more damage?
- What does the warranty cover, for how long, and does it transfer to a new owner?
What to record
- Take dated photos from the same spot, with a tape measure or coin for scale.
- Mark the ends of any crack with a pencil and the date, so you can see if it grows.
- Note when it happens: after rain, during snowmelt, or all the time.
- Keep every estimate, report and invoice in one folder.
Slow down if you hear
- Pressure to sign today or lose a price.
- A large deposit before any work or materials arrive.
- A scope that does not say what is included.
- Claims of a grant or rebate you cannot confirm yourself.