How to Choose a Foundation Repair Contractor: The Engineer-First Way

The trick to choosing a foundation repair contractor is that the most important decision happens before you call one. You hire your own independent licensed engineer first, get a sealed report that diagnoses the movement and specifies the repair, and then make contractors bid against that one spec — so their quotes are finally comparable and enforceable. Skip that step and you're letting the company that profits from the repair be the one who decides you need it, and pricing three "free inspections" that each diagnosed a different problem. This page is the whole sequence: the five steps, the copy-ready questions to ask, and the honest test of whether you need a contractor at all. Texas has no foundation-contractor license — House Bill 613 to create one failed — so this checklist is the consumer protection the state doesn't provide.

Step 1: Hire an Independent Engineer (Before Any Contractor)

This is the spine of the whole process, and it is the step almost everyone gets wrong by skipping. Before you call a single foundation contractor, hire your own independent licensed Professional Engineer to diagnose the movement and write the repair spec. Everything that makes the later steps work — comparable bids, enforceable quotes, a valid permit — depends on having that sealed report in hand first.

There is a legal reason this isn't optional in Texas. Per the ASCE Texas Section Foundation Design Guidelines v3 and the Texas Board of Professional Engineers and Land Surveyors (TBPELS), diagnosing why a foundation is moving and designing the underpinning scheme is the practice of engineering — reserved by statute for licensed P.E.s. A foundation salesperson is not licensed to make that call. The City of San Antonio and Bexar County typically require a sealed Engineer-of-Record letter to permit structural foundation work, which means a licensed engineer is in the loop whether you hire one early or have a contractor route you to one late. Hiring your own, first, is simply doing on your terms what the permit will require anyway.

The decisive word is independent. A contractor's "free inspection" is performed by a company that earns money only if you buy a repair, so the inspector is structurally a salesperson — frequently commission-paid — being asked to diagnose the very job his employer will then sell and install. Even when a contractor offers to supply "their" engineer, an engineer paid by or routed through the company selling the repair is not independent in the sense that matters. The entire value of the report is that the person scoping the work has no stake in how much work gets sold. Hire the P.E. yourself, directly, and the conflict of interest disappears. This page stays on how to vet the contractor; for what the report contains, what it costs, and how it works as a document, see the engineer's report deep-dive — it's step one of choosing, and the rest of this checklist assumes you've done it.

Step 2: Get Bids Against the Engineer's Spec

With the sealed report in hand, collect two to three written bids — and have every contractor bid the same engineer's spec. This is the familiar 3-bid rule, but executed in the order that makes it work.

Done the usual way — three free inspections, three proposals — the bids vary wildly, often by 100 to 300 percent, because each contractor diagnosed a different problem and designed his own version of the repair. That variance isn't really about price; it's about whether each contractor proposed the right number of piers in the first place. There is nothing to compare, because no two quotes describe the same job.

Done correctly, you hand all three contractors the identical specification — method, pier count, locations, target depth, acceptance criteria — and ask each to price that exact scope. Now the bids are genuinely comparable:

• The what is locked, so the quotes differ only on the things you actually want to shop: price, schedule, documentation, warranty, and references.
• A lowball stands out honestly — if one bid is far under the others on the same defined work, you can ask why, instead of guessing whether it's a different (smaller) scope.
• A padded bid stands out too — a contractor who wants to add piers beyond the engineer's count has to argue with the seal, not with you.

A contractor who refuses to bid your engineer's spec, or tries to talk you out of getting an independent engineer at all, is telling you that a fixed, neutral scope threatens his proposal. That refusal is one of the most diagnostic foundation contractor red flags there is.

Step 3: Demand Pricing and Scope in Writing

A bid is only comparable and enforceable if it's specific. The single most important thing to insist on: per-pier pricing, with the pier count and target depth for each pier, in writing. Reject the flat "we'll level the house for $X" quote — it commits the contractor to nothing measurable and leaves you no way to compare bids or hold the crew to the engineer's design.

Here is what a real written scope contains, versus the vague version that should worry you:

The depth line deserves emphasis. A pier that stops short, inside the seasonally active soil, is seated in the very ground that caused the movement — which is why your engineer set a target depth and why the contractor's quote should commit to it. The most common bill surprise is depth overrun, so settle the per-foot surcharge in writing before you sign. In Texas, installed pier pricing runs roughly $1,000–$3,000 per pier; for the regional ranges and what drives the spread, see the per-pier cost breakdown. And the method itself should be the engineer's call, not a sales preference — the repair methods overview explains where each one fits.

Step 4: Vet the Warranty

Two contractors can quote the same engineered repair and offer warranties that are worlds apart. On engineered pier systems — steel push piers and helical piers — a written, lifetime, transferable warranty is the typical strong offer. But the headline word "lifetime" means less than it sounds, so vet four things specifically:

• Workmanship vs. structural (vs. product). A labor warranty covers the installation; a product warranty covers the pier itself; a structural warranty covers the repaired area if it moves again. Meaningful protection usually needs more than one — a defect can live in the steel or in how it was driven.
• Whose lifetime. "Lifetime" usually means the service life of the foundation or as long as you own the home — not a promise that nothing else will ever move. And a true lifetime warranty is not the same as a prorated "limited lifetime" one whose coverage shrinks over time. Get the definition in writing.
• Transfer fees and windows. A transferable warranty is a real resale asset, but it comes with conditions: the new owner often must notify the company within a set window (frequently around 30 days of title transfer), and there may be a transfer fee. Miss the window and it can lapse exactly when it was supposed to help.
• Whether a warranty trust backs it. This is the question homeowners undervalue most. A warranty is only as strong as the company behind it, and many foundation contractors have closed over the years, voiding the warranties they sold. A warranty trust is funds set aside in an irrevocable trust so claims survive even if the company folds — meaningfully stronger than a promise backed only by one company's continued solvency. Ask plainly: who pays the claim if you go out of business?

Two more traps: most structural warranties exclude plumbing damage (your protection there is the pre- and post-repair hydrostatic test, not the warranty), and some bury a binding-arbitration clause in the fine print. This step is a summary; the full decoding of "lifetime," transfer mechanics, void conditions, and trusts lives on the warranties guide — read it before you sign anything.

Step 5: Check Reputation and Credentials

Because Texas licenses no foundation-repair contractor, you assemble trust from several independent signals rather than one license. None is decisive alone; together they separate a durable company from a fragile one.

The Better Business Bureau is the most useful single stop: accreditation, an A or A+ rating, the complaint history and how complaints were resolved, and any Torch Award for Ethics. Pair it with Google and Yelp review volume — depth and consistency over time beat a lone five-star rating. Longevity matters specifically because a warranty is only worth anything if the company is still around to honor it. The National Foundation Repair Association's Certified Foundation Repair Specialist (CFRS) credential signals trained personnel.

Then verify the engineer independently. Look up the P.E. on the TBPELS roster by name or license number, confirm the license is current and in good standing, and confirm that person is the one sealing your report. Do this yourself — directly with TBPELS, not through the contractor — because the permit, and much of your protection, ties back to that seal. The same verification step is the backbone of the manometer survey and engineer's-report workflow that started this process.

The Questions to Ask (a Copy-Ready List)

Bring this list to every contractor visit. The goal is to force the vague parts onto paper — the answers tell you as much as the numbers do.

Do You Even Need a Contractor?

Here is the honesty beat the sales process leaves out: many homes that get inspected need no structural repair at all. A great deal of what looks alarming — a hairline crack, a door that sticks in summer — is seasonal expansive-clay movement that calls for monitoring and moisture management, not piers.

The companies themselves admit it. Olshan reports that roughly 22% of the homes it inspects need no foundation repair; the San Antonio firm Pinnacle says about 1 in 3 of its clients need none. (One Texas engineering firm goes much further, claiming as a marketing position that around 90% of contractor-driven repairs in the state are unnecessary or improper — presented here as that firm's claim, not established fact.) The pattern is consistent enough to take seriously: a meaningful share of foundations that draw a sales call don't need structural work.

This is exactly why the engineer comes first. An independent P.E. is paid the same whether the verdict is "full perimeter underpinning" or "monitor for a year, no piers needed," so the report can tell you the cheapest possible truth — that you don't need a contractor yet at all. A commission-paid free inspection almost never reaches that conclusion. If your engineer says monitor and manage moisture, that is the answer; the engineer's report is what gives you the standing to act on it.

FAQ Note

The FAQ below answers what San Antonio homeowners ask most while choosing a contractor — engineer-versus-contractor order, the questions to ask, how many bids to get, what belongs in a quote, how to check reputation, whether a free inspection is enough, verifying a Texas P.E., and what warranty to expect. For the step that comes before all of them, start with the engineer's report; for the proposals to walk away from, see the contractor red flags; and for the broader hub, see the contractors overview.

Get Matched With a Vetted San Antonio Foundation Specialist

If you have your independent engineer's sealed report in hand — or you want a P.E.-led second opinion before signing a contractor's proposal — we'll match you with a vetted San Antonio foundation specialist who will bid and install to your engineer's spec. The match is free, the quote is no-obligation, and we don't take a fee from you. We screen for willingness to work to a sealed Engineer-of-Record letter, per-pier pricing with count and depth in writing, an ICC-ES listed system, a clean Bexar County permit record, and written, trust-backed warranty terms where the method warrants them. If a quote won't commit to the engineering, we'll tell you. We're not a contractor and we don't diagnose your foundation — that's your engineer's job, and putting that first is the whole point.