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Homeowner reviewing a pier plan drawing with a foundation crew lead at a front porch

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How to Choose a Foundation Repair Company in San Antonio

Texas does not license foundation contractors, so paperwork does the job a license would. Five documents to ask for, how to line up two pier plans, and the question that separates an evaluation from a sales call.

Foundation Repair SAT Team Foundation crew, Foundation Repair SAT 8 min read
  • #choosing-a-contractor
  • #licensing
  • #engineer
  • #permit
  • #warranty
  • #san-antonio

Choosing a foundation repair company in San Antonio starts with a fact that surprises most homeowners: Texas does not license foundation repair contractors. The Texas Residential Construction Commission was abolished in 2009 and nothing replaced it, so there is no license number to check and no board to complain to. Anyone with a truck and a hydraulic press can sell piers. What stands in for a license is paperwork, and the company to hire is the one that produces it without being asked: an elevation survey on a floor plan, a written proposal with the pier plan drawn, a hydrostatic plumbing test before and after, the City permit, an independent Texas engineer’s report when the job calls for it, and warranty terms you can read. This guide is how to ask for each one and how to line up two proposals when they arrive.

The five documents that stand in for a license

1. An elevation survey, not a walk-around. A level reading every few feet across the slab or floor, written on a floor plan, is the only way to know whether the house has moved and where. A contractor who looks at the cracks, walks the perimeter and quotes a pier count has guessed. Ask to see the survey and ask what the differential is. A quarter inch after a dry August is the season; an inch and a half at one corner is movement. The survey is also what the next evaluation compares against, and what the buyer’s inspector asks for, which is why the foundation inspection page starts with it.

2. A pier plan drawn on paper. The proposal should show the pier locations on a floor plan, with the count, the method, and the reason the method suits the soil under the house. Pressed concrete pilings on the deep clay of Schertz and Cibolo, steel piers on the limestone of Stone Oak and Helotes, both on a mixed lot in Shavano Park, drilled or helical piers where an engineer specified them. A plan that names a method without a reason, or the most expensive method on deep clay without explaining why, gets a second opinion. The methods are compared in pressed pilings vs steel piers vs drilled piers.

3. A hydrostatic plumbing test, before and after. On any 1950s to 1980s slab, and on any house where the floor is high in the middle, the drain lines under the slab are filled and held before piers, because a leaking cast iron drain heaving the interior is behind a large share of San Antonio calls and piers cannot hold down a slab that wet clay keeps lifting. The second test, after the lift, confirms nothing opened. A proposal that skips the test on an old slab is a plan to pier a house that keeps moving.

4. The permit, pulled by the contractor. The City of San Antonio requires a residential repair permit for structural foundation work inside the city limits, and Alamo Heights, Castle Hills, Schertz, Cibolo, New Braunfels, Boerne and the other suburbs run their own offices. The contractor pulls it and includes it in the proposal. A contractor who suggests skipping the permit to save money is suggesting you skip the only inspection the job will get.

5. An engineer when it counts, and warranty terms in writing. Structural engineers are licensed by the Texas Board of Professional Engineers and Land Surveyors, and an independent engineer’s evaluation and letter are what lenders, buyers and insurers ask for. Ask whether the company works with one and what it costs, typically $400 to $900. Then read the warranty: the term, what it covers, what it excludes, and whether it transfers to the next owner. The word “lifetime” means only what the wording says.

Lining up two proposals

CompareProposal AProposal BWhat it tells you
Pier count and locations12 along the north side and the northeast corner6 at the northeast cornerDifferent jobs, not different prices; B may leave the house rotating around the corner
Method and reasonPressed pilings, deep clay per survey and street historySteel piers, no reason givenSteel on deep clay adds cost without adding much; ask why
Plumbing testBefore and after, $250–$500Not mentionedOn a 1968 slab, B is planning to pier a possible leak
PermitPulled by contractor, included“Not usually needed”It is needed inside the city and in every suburb
EngineerAvailable, $400–$900Not mentionedMatters for a sale, a claim, or 20+ piers
WarrantyTerm, exclusions, transferable, in writing“Lifetime” on the brochureRead the wording; keep it with the house
Drainage and wateringDownspout extensions and a soaker plan listedNot mentionedA plan without water management is a plan with a second phase

The point is not that the higher bid is honest and the lower bid is not. It is that a total is meaningless without the plan behind it, and the plan is what you are buying. If one bid is far lower, find the line that is missing.

The question that separates an evaluation from a sales call

Ask: “Is it possible this house does not need piers?” A company that evaluates houses says yes without hesitation, because a good share of San Antonio evaluations end with drainage, a soaker hose and a check after the next wet season, and it should be able to describe what that answer would look like on your house. A company that sells piers changes the subject. The follow-up is “what would you do about the water?”, because expansive clay moves houses through uneven moisture, and any plan that does not mention the downspouts, the trees and the sprinklers is a plan with a second phase; the fixes are on the drainage correction page.

Red flags

A pier count and a price on the first visit with no elevation survey. A quote over the phone for a house nobody has measured. Pressure to sign today for a discount that expires tonight; foundation movement on clay is seasonal and slow, and a house that moved an inch over three years does not need a decision by dinner. No plumbing test on an old slab. “Permits are not really needed for this.” A method with no reason. A warranty that exists only on the brochure. And any claim of a state license, since there is none to have.

Green flags

The survey shown to you on the floor plan before any number. The pier plan drawn. The method explained in terms of the soil under your street. The plumbing test in the proposal. The permit and the engineer offered, not extracted. Drainage and watering listed whether or not piers are. The warranty terms handed over to read. A schedule that says which days involve what. And the elevation record after the lift, delivered with the permit and any engineer’s letter, in one file, because the Texas Property Code requires sellers to disclose foundation repairs and the next buyer’s lender will want all of it; that side is in foundation repair when buying or selling a house in San Antonio.

Before the first call

Photograph every crack with a coin for scale and the month. Find any previous foundation paperwork. Note which doors stick and when, and where the downspouts end. Learn what you own: a crawl space means pier and beam, a stamp at the garage slab edge means post-tension, and the county appraisal record has the year. Then ask each company for the five documents, line the plans up, and ask the question. The typical numbers to expect on the plans are in the cost guide, and every number on a plan is a number you can question.

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Quick answers

Common questions on this topic

Short, direct answers from the crew that deals with this on site. Still unsure? Send the form and someone will call you back.

All questions
Are foundation repair companies licensed in Texas?

No. Texas does not license foundation repair contractors at the state level; the Texas Residential Construction Commission was abolished in 2009 and nothing replaced it. Structural engineers are licensed, by the Texas Board of Professional Engineers and Land Surveyors, which is why an independent engineer's evaluation and letter are the independent opinion in a foundation job. Anyone with a truck and a press can sell piers, so the written proposal, the permit, the plumbing test, the elevation record and the warranty terms are what to ask for instead of a license number.

What should a foundation repair proposal include?

The pier locations drawn on a floor plan with the count. The method and the reason the soil under the house suits it. A hydrostatic plumbing test before and after on an older slab. Who pulls the City of San Antonio or suburb permit. Whether an independent Texas engineer's report is available. The price per pier and the total, with interior piers and any plumbing or drainage work as separate lines. The schedule. And the warranty terms in full, including what they cover, the term, and whether they transfer to the next owner.

How do I compare two foundation repair bids?

Line up the pier plans, not the totals. Twelve piers along a whole side and six piers on the worst corner are two different jobs, not one job at two prices, and the cheaper one may leave the house rotating around the piered corner next summer. Check that both name the method for the same reason. Check whether the plumbing test is included. Check the warranty terms side by side. If one bid is far lower, find the line that is missing rather than assuming the other is padded.

Is a free evaluation a red flag?

No; most residential evaluations in San Antonio are free, and that is normal. The red flag is what the free evaluation produces. An evaluation that ends with an elevation survey on a floor plan, a crack map and a written answer that might be drainage, watering or nothing is an evaluation. One that ends with a pier count and a price on the first visit, with no survey, no plumbing test and no mention of water or trees, is a sales call. The question that separates them is 'might this house not need piers?'

Does a lifetime warranty mean anything?

Only what its wording says. A warranty on piers typically covers new movement on the piered sections and does not cover new movement elsewhere, damage from a plumbing leak or a drainage change after the work, additions, or the cosmetic repairs after a lift. 'Lifetime' can mean the life of the structure, the original owner's tenure, or the company's existence. Read the term, the exclusions and whether it transfers to the next owner, and keep it with the house file, because in Texas the warranty and the engineer's letter are what the next buyer's lender will ask about.

Keep reading

Cracks widening right now?

Reading helps. An evaluation helps more.

Tell us what the house is doing and where it sits. You get an evaluation window, what to watch for, and a written proposal only if the house needs work.