Foundation repair costs vary widely, from sealing a single crack to installing many piers under a house. The price depends on the type of foundation, how much it has moved and what the soil is like.
Sifixit does not publish price numbers unless we can name a trustworthy source for them. This page explains how pricing works so you can understand and compare the quotes you receive.
How pricing usually works
A foundation repair quote is usually made up of these parts.
Inspection and engineering
Floor level surveys and, for larger jobs, a structural engineer’s report.
Piers or supports
The number and type of piers, which is often the largest part of the cost.
Access and excavation
Digging along the foundation or tunneling under the slab.
Related work
Plumbing tests, drainage fixes and cosmetic repairs after lifting.
What makes the price go up or down
- The type of foundation
- How much movement there is
- How many piers are needed
- The pier type and depth to stable soil
- Whether plumbing under the slab needs repair
- Drainage work needed
- Permits and engineering
Insurance and your costs
Homeowners insurance usually does not cover soil movement or settling. Damage from a sudden covered event, such as a burst pipe, may be covered.
- Ask your insurer whether the cause could be covered
- Keep engineer reports and photos
- Check for a slab leak, which may change what is covered
- Keep receipts
- Ask about a transferable warranty for resale
How to compare quotes
- Compare the same number and type of piers
- Check whether an engineer’s report is included
- Ask about plumbing tests before and after
- Compare warranties and whether they transfer
- Ask what is excluded, such as cosmetic repairs
Warning signs in a quote
- A quote without floor level readings
- High pressure to sign the same day
- No explanation of what is causing the movement
- A lifetime warranty with vague terms
- No proof of insurance
Frequently asked questions
Why is foundation repair expensive?
It involves heavy equipment, deep piers and careful lifting of the whole house.
Is an engineer's report worth it?
For anything beyond small cracks, yes. It gives a neutral opinion on what is needed.
Can I wait to repair my foundation?
Small, stable cracks can often be watched. Growing cracks and sticking doors usually get worse and costlier over time.
Does a warranty transfer if I sell?
Some do. Ask before you sign, because it matters to buyers.
Learn more
Our main foundation repair guide explains the warning signs, what to do first and when to call a professional.
Sifixit is a free referral service and does not provide home services. Calls may be answered by a partner call center or connected directly to independent local providers, who are solely responsible for their work, pricing, licensing and insurance.