Foundation work carries the longest liability tail in construction, because damage can surface years after the pour. ContractorsInsured.net (CA Lic #6015321, TX Lic #3305690) shops admitted and E&S markets for foundation, underpinning, and repair contractors, matches completed-operations coverage to your statute-of-repose exposure, and issues COIs right after binding, often the same business day.
Insurance for foundation contractors
ContractorsInsured.net is an independent insurance brokerage for foundation contractors in California and Texas. What makes foundation underwriting different is time. A bad pour or a failed pier rarely shows up at final inspection. It shows up as cracked slabs, racked door frames, and out-of-level floors years after the pour, which is why underwriters treat foundation work as one of the longest-tail liability classes in construction.
Two policy mechanics matter more here than in almost any other trade. First, carriers routinely endorse earth movement and subsidence exclusions onto contractor GL policies, which can quietly remove the exact exposure a foundation contractor needs covered. Second, GL never pays to redo your own failed work. A GL policy is not a warranty. What it pays, through completed operations, is the resulting third-party damage: the structure above the slab, the neighboring property, the injury claim.
Because of that exposure profile, foundation risks are frequently placed in the excess and surplus lines (E&S) market, where an underwriter can rate the earth-movement exposure instead of excluding it. We shop admitted and E&S markets side by side, read the exclusion schedule before you bind, and match the completed-operations coverage to the repose period you actually face.
No policy yet? We quote GL the same business day, bind, and issue the certificate right after.
What foundation contractors typically need
Core policies (start here)
- General Liability (GL). The anchor policy, and for foundation work the detail that matters most is completed operations, the part of the policy that responds when finished work fails. We match it to the repose period you actually face: 10 years in California under CCP 337.15, and 10 years in Texas, or 6 with a qualifying HB 2024 warranty.
- Workers' Compensation (WC). Texas leaves workers comp optional for private employers, but GCs demand it before you set foot on their pads. In California, C-8 Concrete is on the SB 216 list, so a workers comp policy has been required even with zero employees since January 1, 2023, and every classification will need one on January 1, 2028.
- Commercial Auto. Crew trucks, trailers hauling forms and brackets, and the pickups moving between pours. Cities and GCs often set auto minimums in the same packet as the GL requirement.
Add-ons foundation operations commonly need
- Tools and Equipment (Inland Marine). For concrete pumps, forms, and pier rigs that move between jobsites or live in yards and trailers.
- Umbrella / Excess. Contract-driven when a GC or owner requires higher limits than your base GL, common on commercial pads and public work.
- Ghost Policy (owner-only subs). An owner-only foundation sub satisfying a GC's comp requirement sometimes uses a ghost policy, and most of those packets also require $1M GL, which we quote in one pass.
One more line worth reading: cutting, grinding, and breaking out concrete generates silica dust, and GL routinely excludes pollution claims, so ask about pollution liability if slab demolition or grinding is part of your repair scope.
Not sure what you need? Start the quote flow and describe your work mix.
What foundation contractor insurance costs
Published benchmarks put concrete contractor general liability at roughly $102 per month for $1M/$2M limits (Insureon), against roughly $82 per month for construction overall and roughly $142 for general contractors. There is no published foundation-specific rate table, and foundation repair with earth-movement exposure prices meaningfully above the concrete-trade average once underwriters rate the subsidence risk, so treat these figures as floors.
The cost drivers underwriters actually price
- Repair versus new pours. New construction on an engineered pad reads very differently from repairing a foundation that has already moved.
- Underpinning and pier depth. Deeper piers and pressure grouting mean more excavation and more subsidence questions.
- Soil conditions. Expansive clay, fill, and slope work all raise the earth-movement conversation.
- Revenue and payroll. The rating basis for GL and comp.
- Claims history. Frequency, severity, and recency all matter.
- Warranty length. The longer the promise, the longer the tail underwriters see behind it.
| Operation profile | Typical position in the range |
|---|---|
| New residential foundations | Near the concrete-trade average: engineered pours, predictable scope |
| Slab repair and leveling | Above average: the earth-movement questions start here |
| Underpinning and pier work | Highest, often E&S: deep excavation plus subsidence exposure |
Reality check: Requirements and pricing vary by carrier, operations, and project. This page is general information, not legal advice.
What Texas and California actually require
Texas: no state license, city rules instead
Texas does not license foundation repair contractors at the state level, and a 2011 bill to create a license never passed. The rules live at the city level:
- Contractor registration to pull permits in cities like Fort Worth and Dallas.
- Foundation repair permits required regardless of job value in Dallas, and a foundation repair permit program in Houston.
- PE-sealed repair plans: most DFW-area cities (Fort Worth, Bedford, Prosper and others) require repair plans sealed by a Texas-licensed professional engineer showing pier type and locations before the permit is issued.
- RCLA notice: Texas Property Code Chapter 27 requires homeowners to give written notice roughly 60 days before suing and lets the contractor inspect and offer a repair, so a foundation claim usually announces itself before the lawsuit does.
The Texas repose clock: your warranty sets your tail
This is the most quotable fact on the page. Under HB 2024 (effective 2023), the statute of repose for claims on detached one and two family homes drops from 10 years to 6 years if the contractor provides a qualifying written warranty of 1 year workmanship, 2 years systems, and 6 years structural. The warranty you offer literally sets how long your completed-operations tail needs to run. We line the two up when we quote.
California: license classifications and gates
- New concrete foundation work is performed under the CSLB C-8 Concrete classification.
- Foundation repair, pressure grouting, and underpinning fall under C-61/D-30 Pile Driving and Pressure Foundation Jacking, with A General Engineering and B General Building covering foundation work inside larger scopes. B-2 residential remodeling licensees may not touch foundations.
- A $25,000 contractor bond is required, and LLC licensees need at least $1,000,000 in liability insurance (B&P 7071.19).
- C-8 is on the SB 216 list, so workers comp is required even with zero employees.
- CCP 337.15 gives a 10 year statute of repose for latent defects, the longest tail you will carry.
We build the COI and endorsements to the GC packet or the city checklist before you submit. See COI basics and additional insured endorsements, or request a COI if you are already a client.
Expansive clay: why foundation claims cluster in Texas
The Dallas to San Antonio corridor sits on the Houston Black expansive clay of the Blackland Prairie, roughly 1.5 million acres of high shrink-swell soil, and Houston-area clays behave the same way. The soil swells when wet, shrinks when dry, and moves the slab above it with every cycle.
Civil engineers have estimated since the 1970s (ASCE) that expansive soils damage more US structures annually than floods, hurricanes, tornadoes, and earthquakes combined, with modern estimates around $15 billion a year. That is why Texas foundation contractors carry heavy completed-operations exposure, and why underwriters ask pointed questions about soil testing and drainage practices before they quote.
California has its own versions of the problem: hillside foundations, seismic retrofit work (the state's Earthquake Brace and Bolt grant pays up to $3,000 for bolt and brace retrofits on pre-1980 homes), and San Joaquin Valley subsidence that USGS has measured at up to 28 feet. Different geology, same underwriting instinct: the ground moves, and the foundation contractor holds the tail.
How we work (multi-carrier, compliance-first)
What you should expect
- We shop multiple carriers, including E&S access for the earth-movement exposure that admitted markets often exclude or decline.
- We are compliance-first: we read the GC packet or city checklist before we quote, so the policy we bind actually satisfies it.
- The COI is issued right after binding, often the same business day, with the certificate holder and additional insured wording taken from your checklist.
- Renewals are re-shopped, not auto-rolled, because appetite for earth-movement risk shifts year to year.
What we do not do
- We do not promise lowest price or guaranteed approvals.
- We do not provide legal advice. Contract and permit requirements vary by city and project.
Common foundation scenarios (what to do next)
Scenario 1: You are a Texas repair contractor giving lifetime transferable warranties.
What to know:
- The warranty itself is not insurable. It is a business obligation you take on, and GL excludes the cost of redoing your own failed work.
- What GL with completed operations pays is resulting damage: the structure above the slab, the finishes, the injury claim.
- If you sell a qualifying HB 2024 written warranty (1 year workmanship, 2 years systems, 6 years structural) on detached one and two family homes, your repose exposure drops from 10 years to 6, and we align the completed-operations tail with it when we quote.
Scenario 2: A DFW city wants a COI plus PE-sealed repair plans before it issues your permit.
What to do:
- Send us the city checklist. We issue the certificate to it the same day, with the exact certificate holder and any additional insured wording, while your engineer stamps the plans.
- Confirm the pier type and locations shown on the sealed plans match the scope described in your submission.
- Keep the sealed plan set and the COI in the same folder. The permit tech reads them together.
Scenario 3: You are a California contractor adding underpinning and wonder if your B license is enough.
What to do:
- Underpinning, pressure grouting, and foundation jacking point to the C-61/D-30 classification. A B license covers foundation work only inside a larger general building scope.
- Verify your exact scope with CSLB before you bid.
- Tell us the new work mix so your GL classification, and the earth-movement questions that come with it, match what you actually do.
Foundation work is a long-tail trade, so if a carrier declines or endorses away the exposure you need, our multi-carrier approach gives you more places to land. Related reading: certificate of insurance basics, additional insured endorsements, and general liability for contractors.
Fast quote checklist for foundation contractors
When you request a quote, have this ready (or approximate it).
- Trade description. New pours vs slab repair vs underpinning, and the rough split between them.
- Warranty terms you offer. Length, transferability, and whether it tracks the HB 2024 qualifying structure in Texas.
- Soil and site practices. Soil reports, engineer involvement, and the drainage recommendations you document.
- Revenue and payroll ranges. The rating basis underwriters start from.
- Equipment list. Pumps, forms, pier rigs, trucks, and trailers.
- Claims history. The last 3 to 5 years, with short details on anything open.
- The GC packet or city checklist itself. Upload it. This is the single fastest way to get a certificate accepted on the first pass.
- Desired limits. Including any umbrella the contract requires.