Foundation, basement and crawl space services, explained before you call
Each page says what the work is, who is allowed to do it, whether it needs a permit, what the cost evidence looks like and when an engineer should look first. Where we found no source for a number, the page says so.
More services
Foundation repair
Settling, cracked or leaning walls and floors, diagnosed before the repair is chosen.
Foundation cracks
Cracks in basement walls and floors: what the pattern means and what repair involves.
Basement waterproofing
Wet basement fixes in order, with the permit lines and license craft that apply.
Crawl space encapsulation
Sealed, unvented crawl spaces: the code route, the limits of the evidence, the license and permit position.
Piering and underpinning
Piers and underpinning for a footing that has dropped or sits too shallow.
Slab leveling
Lifting or replacing a slab that has sunk, tilted or cracked.
Sump pump
Install, replace or back up the pump that keeps groundwater out of a basement.
Radon mitigation
Testing for radon and installing a system that vents it out of the house.
Foundation inspection
An independent read on cracks, walls and floors, before a repair.
Bowing walls
Walls that lean or bow inward, and who should look first.
Drainage
Drain tile, French drains and where the water is allowed to go.
Services by state
Foundation companies: receive these requests
If you run a foundation, waterproofing or crawl space company in a place we cover and want homeowner requests for the work you do, read the partner page.