How to Choose a Foundation Repair Contractor

Foundation repair is one of the highest-pressure home improvement categories. The potential for large dollar amounts, homeowner fear, and opaque technical details creates an environment where aggressive sales tactics flourish. Here’s how to approach the process with your eyes open.

Start With an Independent Engineer, Not a Contractor

The single most important thing you can do before calling any foundation repair company is hire a structural engineer for an independent assessment. This costs $400-$800 and gives you:

• An objective diagnosis of what’s causing the problem
• A recommendation for the appropriate type of repair (or confirmation that no repair is needed)
• A specification that contractors can bid against on equal footing
• Leverage in contractor negotiations — it’s much harder to oversell you when you’re holding an engineer’s report

Many homeowners skip this because they don’t know it’s an option. Foundation repair companies know their customers don’t usually hire engineers first, and they price and scope accordingly.

Verify Licensing and Insurance

Foundation repair licensing varies by state. In some states, foundation contractors need a specialty contractor’s license; in others, a general contractor’s license is sufficient. Check what your state requires and verify the contractor holds the appropriate license.

Required insurance:

• General liability: $1 million minimum per occurrence
• Workers’ compensation: Required for any company with employees

Request current certificates of insurance. The certificate should show your property as an additional insured during the project.

Evaluate Their Assessment Process

A credible foundation contractor will:

1. Send a trained inspector, not a salesperson — some companies send sales reps who are paid on commission and have no technical background
2. Measure and document — crack widths, floor elevation differences, window and door operation, moisture readings
3. Explain the cause, not just the symptoms — if they can’t tell you why the foundation is moving (soil shrink/swell, plumbing leak, poor drainage, erosion), they haven’t diagnosed the problem
4. Offer options — if only one solution is presented, ask about alternatives explicitly

Red flags in the assessment:

• Pressure to sign on the same visit (“this price expires today”)
• Recommending full piering for minor cosmetic cracks
• Unable to explain specifically which piers will go where and why
• Dismissing an engineer’s report you present

Understand the Quote

Foundation repair quotes should specify:

• Type of pier system (helical vs. push, brand/manufacturer)
• Number of piers and their placement locations
• Depth design criteria — what soil bearing capacity is being targeted
• Lifting expectations — will they attempt to lift, and how much
• Interior work — is concrete breaking, replacement, or interior pier installation included?
• Warranty — who backs it, what it covers, and whether it transfers

If the quote is a single lump sum without these details, ask for a line-item breakdown before signing.

Compare at Least Three Quotes

For any project over $5,000, get at least three written quotes. Pay attention to:

• Pier count differences — if one contractor proposes 12 piers and another proposes 20 for the same settlement, ask why
• Pier type differences — helical vs. push piers have legitimate cost and application differences (see our guide on helical vs. push piers)
• Scope differences — some quotes include lifting attempts; others stabilize only
• Warranty terms — compare coverage, duration, and who honors the warranty if the company closes

Be skeptical of both the highest and lowest bids without understanding what’s different about them.

Check References and History

Ask every contractor for:

• Three references from projects in your county within the last two years (call them)
• How long the company has been in business under this name (warranty value depends on company survival)
• Who specifically will do the work — their own crew or subcontractors

Online reviews are useful but look beyond star ratings. Read the text of both positive and negative reviews. Foundation repair complaints often center on the same themes: damage during installation, warranty disputes, and overpromised lifting results.

Warranty Reality Check

“Lifetime transferable warranty” sounds impressive but requires scrutiny:

• Who backs it? A contractor-only warranty is worthless if the company closes. Manufacturer warranties on pier materials are more durable.
• What’s covered? Most warranties cover the piers themselves but not future settlement in new areas or movement caused by changing soil conditions.
• What voids it? Landscaping changes, plumbing work, and modified drainage around the foundation can void warranties.
• Transferable to new owner? Confirm this in writing — not just verbally.

Frequently Asked Questions

How many quotes should I get for foundation repair? Three minimum. For projects over $10,000, four or five quotes are reasonable. The price range between contractors for the same scope can be 40-60%, which represents significant money on large jobs.

Should I repair foundation issues before selling? Active, visible foundation problems are a significant obstacle in any home sale. Documented repairs with a transferable warranty are preferable to undisclosed problems — and far preferable to a buyer’s inspector flagging the issue mid-transaction.

What questions reveal the most about a contractor? “Why are you recommending this specific pier type and count for my situation?” and “What would a structural engineer say about your proposed solution?” An honest contractor gives you direct answers. A sales-driven contractor gives you deflections.

What if the contractor and the engineer disagree? Ask the contractor to explain specifically why their recommendation differs from the engineer’s assessment. A legitimate technical disagreement should be explainable in concrete terms. If the contractor dismisses the engineer without explanation, trust the engineer.

Find licensed, vetted foundation repair specialists in your area for an honest assessment of your situation.