Olshan Foundation Solutions: An Independent Explainer

Olshan Foundation Solutions is a Houston-based, family-rooted foundation-services company that, by its own account, has operated since 1933 — "90+ years" — across much of the southern United States, with a strong Texas presence and a flagship proprietary pier called the Cable Lock ST Plus. If you searched "Olshan foundation repair," you are most likely a homeowner weighing a quote, trying to understand what the company is and what its system does. This page is an independent explainer: we are not affiliated with, endorsed by, or representing Olshan, and nothing here is a promotion or a hit piece. Every company fact below is company- or BBB-reported and worth verifying yourself — and our one consistent recommendation, for Olshan or any contractor, is to get your own independent licensed engineer's diagnosis before you sign.

Who Olshan Is

Olshan reports a history going back to 1933, which it frames as "90+ years" in business — a genuinely long run in a field where many companies fold within a decade and take their warranties with them. The company describes itself as family-rooted and Houston-based, and reports a large, multi-state footprint across the southern U.S., with a strong Texas presence spanning Houston, Dallas, San Antonio, and Central Texas.

The reported service line is broad. Beyond foundation repair, Olshan lists basement waterproofing, crawl space repair and encapsulation, drainage, under-slab plumbing, concrete leveling, and home elevation — the full envelope of services a homeowner with a moving foundation often ends up needing. The flagship proprietary product, and the reason much of this page exists, is the Cable Lock ST Plus pier system.

Two cautions frame everything that follows. First, these are company-reported facts: founding date, footprint, and service list come from Olshan's own materials, and details like office counts and service areas shift over time. Treat them as a starting point and confirm current specifics on the company's site and its Better Business Bureau profile. Second, knowing what a company is is not the same as knowing whether it is right for your house — that is an engineering question, not a branding one, and we return to it below.

The Cable Lock System Explained

Cable Lock is a hybrid pier. Where a plain pressed piling is a stack of pre-cast concrete cylinders, and a steel pier is a continuous steel element, Cable Lock combines both: pre-cast concrete cylinders and steel segments, locked together by a tensioning cable that runs through the assembly to hold the pieces in alignment. The design intent is to pair the bearing area of concrete with the depth of a steel element, with the cable resisting the misalignment that an un-tied stack of cylinders can suffer.

To understand what that means for your foundation, it helps to know the two methods underneath it:

• A pressed concrete piling uses the weight of the house to drive pre-cast cylinders to refusal. It is the cheapest deep-foundation option, but the cylinders cannot be inspected after install and their depth depends on soil moisture the day they go in. Our concrete pressed pilings guide explains exactly what a stacked, un-inspectable element can and cannot verify.
• A steel pier is a continuous steel element driven to a calibrated drive pressure, which gives an install-time record of the resistance each pier met.

Cable Lock sits between these: the concrete provides bearing, the steel adds reach, and the cable is meant to keep a segmented system acting as one column. Whether that combination is the right call for your soil and structure is, again, an engineering decision. A hybrid pier is a legitimate tool; it is not automatically superior or inferior to a plain steel pier or a drilled bell-bottom pier. The method should follow the diagnosis, not the brand. (For a different proprietary approach — a patented driven-steel-pile and helical system sold through a franchise network — see our Ram Jack explainer; comparing two branded systems side by side is a useful exercise precisely because it forces the engineering question to the surface.)

Cable Lock the Product vs Cable Lock the Company

This is the clarification that sends the most homeowners in circles, so it is worth stating plainly. "Cable Lock" refers to two different things:

1. Cable Lock — the pier system. A patented hybrid concrete-plus-steel pier, invented by Texas Professional Engineer David Knight, now sold as Olshan's flagship "Cable Lock ST Plus." This is a product line within Olshan.
2. Cable Lock Foundation Repair — the company. A separate business, based in the New Orleans / Gulf Coast area, founded in 1997 and still owned by David Knight (the same engineer who invented the system). This is its own contractor, not an Olshan branch.

They share a name and a common origin in Knight's invention, but they are not the same entity. If you searched "Cable Lock foundation repair" and landed on Olshan, or reached the New Orleans company and assumed it was Olshan, stop and confirm which one you are actually dealing with before you draw any conclusion about who owns the company, where it operates, who stands behind the warranty, or who would show up to do the work. Confusing the product with the company is an easy mistake — and in foundation repair, who signs your contract and who honors your warranty are not details to get wrong.

Reputation Signals (and How to Verify Them Yourself)

Olshan reports several trust signals that searchers encounter immediately. They are worth understanding — and worth checking yourself rather than taking from this page or any marketing copy, because a company's standing can change.

The pattern to take from the table: these are real, generally positive signals, and Olshan's reported BBB standing is strong. But a celebrity endorsement tells you nothing about whether a pier was driven to competent strata, and a company-wide rating does not certify the specific crew on your job. Use these signals to decide who makes your shortlist — and use an independent engineer to decide whether any given quote is sound.

The Honesty Signal Worth Noting

One company-reported figure deserves singling out. Olshan reports that roughly 22% of the homes it inspects need no foundation repair at all. We present that as a company-reported number, not an independently audited one — but it is a notable honesty signal in an industry whose sales processes too often assume repair is inevitable.

Why it matters: it is consistent with the broader reality that not every symptom means structural movement. Cracks track for many reasons; doors stick with humidity; a hairline in drywall is not a verdict on your slab. A contractor willing to say "about a fifth of the homes we look at need nothing from us" is signaling a diagnostic posture rather than a pure sales posture, and that is the right direction.

It does not, however, replace your own engineer. "Some homes need nothing" is reassuring as a company stance; it does not tell you whether yours is one of them. The only thing that answers that is an independent elevation survey that measures whether your foundation has actually moved beyond tolerance. The honesty signal is a reason to take a company seriously — not a reason to skip the measurement.

What to Verify Before You Sign (with Olshan or Anyone)

The same short list protects you regardless of which contractor's logo is on the truck:

• An independent licensed engineer's report first. Hire your own Professional Engineer — not the contractor's — to diagnose the movement and specify the fix before you accept any quote. This is the single highest-leverage step in the entire process. Start with our engineer's report guide.
• Per-pier pricing and target depth in writing. A quote should state how many piers, where, to what target depth, and at what price each — not a single lump sum for "the foundation." Vague scope is where surprises live.
• A warranty you have actually read. Look for transferability, any buried arbitration clause, plumbing exclusions, and — critically — whether the coverage is backed by a warranty trust that survives the company. Longevity since 1933 is reassuring, but a trust is what protects you if circumstances change. See our warranties guide.
• The contractor's standing, verified by you. Read the current BBB profile yourself, and verify any engineer involved on the official state roster.

For the full vetting checklist — references, red flags, and how to compare bids on equal terms — see how to choose a foundation repair contractor, and the broader contractors overview.

FAQ Note

The FAQ below answers what homeowners ask most after searching "Olshan foundation repair" — what the company is, where it operates, what Cable Lock is, how the product differs from the separate New Orleans company of the same name, the ~22% no-repair figure, San Antonio coverage, what to check before hiring, and whether this site is affiliated with Olshan (it is not). For the structured second opinion that should precede any contract, start with an engineer's report.

Get Matched With a Vetted San Antonio Foundation Specialist

If you are weighing Olshan — or any San Antonio contractor — the right next step is a measurement, not a sales call. We'll match you with a vetted San Antonio foundation specialist and point you to an independent engineer who can confirm whether your foundation has actually moved and, if so, specify the fix. The match is free, the quote is no-obligation, and we don't take a fee from you. To be explicit: we are not affiliated with Olshan or any other contractor, and a match is not an endorsement. Whether you ultimately choose Olshan, the system's separate New Orleans originator, or a local competitor, get your own independent engineer's report first — it tightens every bid you receive and is the one document that protects you no matter whose truck shows up. That's the only way an editorial matching service should work.