Your questions, answered
These are the questions property owners ask most about foundation repairs, from crack causes to what underpinning involves. If your question is not covered here, send it in and a specialist will get back to you.
What customers ask us
What signs suggest a house may have a foundation problem?
Cracks running diagonally from the corners of windows or doors, floors that slope noticeably, doors that no longer close properly, and gaps opening between walls and ceilings are all worth taking seriously. Cracks wider than a hairline that grow over time are a particular concern. Soil that shrinks in dry weather, saturated ground, and tree roots drawing moisture from beneath a slab are frequent causes across the United States.
What happens if foundation damage is left without attention?
Unchecked foundation movement tends to worsen. Walls can rack out of plumb, floor systems can sag, and water can enter through widening cracks. The longer the underlying cause goes unaddressed, the more the repair scope typically grows. If you have noticed cracking or movement, describing the symptoms to a specialist sooner rather than later is the practical step.
What does foundation repair actually involve?
The method depends on what is causing the movement and the type of foundation. Common approaches include underpinning with piers driven to stable soil, mudjacking to raise a sunken concrete slab, crack injection to seal structural cracks, and drainage corrections to stop water undermining the soil. A specialist assesses the property first and then advises which method suits the specific conditions before any work begins.
What is underpinning and when is it used for foundation repairs?
Underpinning transfers the load of a foundation down to soil or rock that is stable enough to carry it. Where the existing soil has shifted, dried out, or been undermined by a drain or tree roots, underpinning restores the structural support. Methods include mass concrete sections, helical piers, and push piers. A specialist determines which method is appropriate after examining the foundation and the soil conditions.
What is mudjacking and how does it differ from other foundation repair methods?
Mudjacking pumps a slurry mixture of soil, cement, and water through holes drilled in a sunken concrete slab, filling voids beneath it and raising it back to level. It suits driveways, garage floors, sidewalks, and shallow slab foundations where the concrete itself is sound but the soil beneath has settled or washed away. A specialist will confirm whether the slab and the soil conditions make mudjacking the right choice for a particular job.
How much does foundation repair cost, and how do I get a figure?
Price depends on the repair method, the depth to stable soil, the length of wall or slab affected, site access, and whether drainage work is also needed. Pier installation carries a different cost from a crack injection or a mudjacking job. You can get a free quote by submitting your details: a specialist will assess the property and provide a written figure based on what they find.
Does homeowners insurance cover foundation repair costs?
Standard homeowners policies typically cover sudden, accidental damage such as a burst pipe undermining a foundation, but exclude gradual settlement, soil shrinkage, or poor original construction. Whether a specific claim is covered depends on the policy wording and the cause of the damage. A foundation specialist can document the cause and extent of the damage, which is usually required when submitting a claim to an insurer.
Can I arrange foundation repairs on a property I am buying before I close?
Yes. If a home inspection or structural report has flagged foundation movement, cracking, or drainage concerns, a foundation specialist can assess the property before closing. Include in your enquiry that you are a buyer, the property address, your expected closing date, and any relevant notes from the inspection report. The specialist can then advise on the extent of any work needed and provide a quote you can use in negotiations.
Why use a foundation repair specialist rather than a general contractor?
Foundation problems originate in the soil and structure beneath a building. Filling surface cracks without addressing the underlying cause means the movement continues and the cracks return. A foundation repair specialist focuses on diagnosing ground movement, selecting the correct repair method for the soil type and foundation design, and producing documentation that satisfies mortgage lenders and insurers, which a general repair typically cannot provide.
Still have a question?
If your question about cracks, costs or repair methods is not covered above, send it in and a specialist will reply.
- Free quote, no obligation
- Covers cracks, settlement and underpinning