Questions to Ask a Foundation Company Before You Sign

A truck with “foundation repair” on the door is not a scope document. Neither is a same-day price from a few photos. Before you sign anything for foundation work on a La Jolla house, you need a short interview script: license and insurance, written scope, who engineers what, who pulls the City permit, how change orders work, and what any warranty actually covers. Ask out loud. Then verify on State boards—not on the brochure.

This guide is a buyer due-diligence script for La Jolla homeowners citywide. It is not a ranking of companies, not a remote diagnosis of your house, and not a rewrite of our commercial hubs. For repair process framing, use foundation repair. For cost-stack and City fee literacy, use foundation repair cost and the companion post what drives foundation repair cost. When diagnosis comes first, see foundation inspection and when to involve a structural engineer.

A polished sales presentation is not a scope document. A license number on a truck is not proof the license is active, the classification matches the method, or workers’ compensation is current. Ask—then verify—before you sign.

Why the interview matters in La Jolla

La Jolla parcels sit inside the City of San Diego. Structural foundation repair generally requires a Building Permit under San Diego Municipal Code §129.0202. Plans, calculations, and often a geotechnical report may be required depending on hazard category, soil conditions, and Building Official determination. Housing stock in ZCTA 92037 is mid-century-heavy (ACS 2024 5-year estimates: on the order of 19,688 units, largest year-built bin 1970–1979). Foundations vary—crawl space, slab, hillside pier and grade-beam—and parcel overlays can include Coastal Overlay, Environmentally Sensitive Lands steep hillsides, Seismic Safety Study categories, and Alquist-Priolo strands of the Rose Canyon Fault Zone (La Jolla quadrangle official 2021-09-23). That diversity is why comparable written scopes matter more than a verbal “we do foundations.”

This website connects homeowners with a calm evaluation path. It does not invent CSLB numbers, PE stamps, warranties, or testimonials, and it does not claim to be your contractor or engineer of record.

Block 1 — License, insurance, and who is in your living room

CSLB (Contractors State License Board) consumer guidance is blunt: advertisements must show the state license number. Check status online with CSLB Check a License, or call (800) 321-CSLB (2752). You can search by license number, business name, or contractor name. Seeing a number is not enough—confirm the license is active.

Ask:

1. What is your CSLB license number, and which classification(s) cover this proposed method?
2. May I look it up with you while you are here?
3. May I see your pocket license and a photo I.D.? (Confirm the person matches the license.)
4. If a salesperson is negotiating, what is their Home Improvement Salesperson registration number—and may I see that card with I.D.?
5. What is the address of record and phone on your CSLB license history page?
6. Will you provide a Certificate of Insurance for workers’ compensation? If you have employees, workers’ compensation is required; injury without coverage can create homeowner financial exposure.
7. Do you carry commercial general liability insurance? If not, how will damage to my property be covered? (CSLB notes GL is not universally required for every classification, but the written contract must disclose insurance information.)
8. What contractor license bond amount shows on your license, and do you understand that the bond is not a workmanship warranty?

Classification literacy (scope-dependent—verify against the actual work; do not treat this as a complete legal chart): homeowners often encounter A General Engineering and/or B General Building for work within larger scopes; C-8 Concrete; and C-61/D-30 Pile Driving and Pressure Foundation Jacking for certain pile, jacking, or related repair scopes. B-2 Residential Remodeling is barred from structural footing and foundation changes—ask hard if a B-2-only pitch is offered for foundation work. CSLB also notes that certain classifications, including active C-8 Concrete, must carry workers’ compensation even with zero employees (or a valid Certification of Self-Insurance). Read the CSLB Description of Classifications for statutory limits.

Block 2 — Scope documents before money moves

Ask for paper (or PDF) you can compare across bids. CSLB advises getting at least three written bids on identical plans, specifications, and scope of work. Beware abnormally low bids.

Ask:

1. What written scope will I receive before signing—mechanism assumed, method class, locations of work, and a clear inclusions/exclusions list?
2. Does your bid assume I will separately hire geotech and a civil/structural engineer, or are those fees included?
3. Are City plan-check and inspection fees included, excluded, or “owner to pay at issuance”?
4. What is excluded that people often assume is included—drainage, finish restoration, landscaping, utility protection or relocation, temporary shoring, monitoring, adjacent grading?
5. How do you define success: stabilize in place, lift and re-level, or something else? Are residual movement tolerances stated in any geotech or structural documents you will follow?
6. Will inaccessible areas (crawl height, furniture, finishes left in place) be listed so the bid is not pretending to see everything?

For how those line items sit inside the larger cost stack—and for City fee dollars clearly labeled as municipal fees, not repair prices—see what drives foundation repair cost and foundation repair cost.

Block 3 — Who designs, who builds, who inspects

California role boundaries matter. A home inspection can flag foundation concerns. Under Business and Professions Code §7196.1, home inspectors who are not registered engineers may not perform structural engineering analysis. A flag is not a stamped opinion.

Ask:

1. Who is the engineer of record if stamped plans are required—and may I verify that license on the BPELSG License Lookup?
2. Who is the geotechnical engineer (or engineering geologist) if a soils report is required?
3. Will your company build from plans prepared by others, or are you proposing design-build—and if design-build, who stamps?
4. Who schedules City inspections, and who is present for them?
5. If a home inspector already flagged the issue, what additional investigation do you recommend before construction pricing is treated as final?

City IB-141 calls for geotechnical investigation when foundations bear on fill or expansive soil (CRC definition) for covered dwelling types. Deep foundations and certain geologic hazard categories under SDMC Table 145.1803 commonly pull geotech into the path. For inspection literacy, see what a foundation inspection covers. For engineering timing, see when to involve a structural engineer.

Block 4 — Permits and La Jolla overlays

Ask:

1. Will this scope need a City of San Diego Building Permit? (Structural foundation repair generally does.)
2. Who pulls the permit—you, me, or the engineer’s office?
3. Could Coastal Overlay rules require a Coastal Development Permit, or ESL steep-hillside rules a Site Development Permit, in addition to the Building Permit?
4. Could a 45+ year / potential historic review path add Heritage Preservation hourly fees?
5. If excavation or site work is involved, do we also need a grading or right-of-way permit under IB-502?

City IB-501 (August 2026) lists Table 501C Foundation Repair City fees of $2,120.01 plan check and $353.13 inspection per building—municipal fees only, not the construction price. IB-503 (September 2026) lists CDP and SDP deposit-account patterns of $8,000 initial / $4,000 subsequent minimum balance when those discretionary paths apply. Those dollars are processing costs. Deepen fee literacy on the companion cost post and the foundation repair cost hub—do not treat this interview checklist as a second fee schedule.

“No permit needed” and “no engineer needed” as blanket statements for structural foundation work are red flags, not reassurance.

Block 5 — Money, change orders, and timing

Ask:

1. What is the contract price, payment schedule, and down payment? For home improvement contracts, the down payment generally may not exceed $1,000 or 10% of the contract price, whichever is less, unless a qualifying Blanket Performance and Payment Bond is on file with CSLB (Business and Professions Code §7159.5). CSLB notes that bond exception is rare.
2. Do progress payments stay within the value of work performed?
3. How are change orders authorized—written only, priced before work proceeds?
4. What happens if concealed conditions appear after opening the ground or crawl space?
5. What is the proposed start window and what dependencies (permits, geotech, material lead times) could move it?
6. Who pays for re-inspection or plan-check resubmittal if City comments require revisions?

A contractor license bond (CSLB materials describe a statutory license bond amount of $25,000) is a limited consumer-protection instrument. It is not a warranty that the work will meet your expectations, and it is often insufficient for large claims. Do not confuse “bonded” with “guaranteed forever.”

Block 6 — Warranty language to ask about (questions only)

This site does not offer or invent a warranty. You still should ask any company that does:

1. What is covered—workmanship, materials, both?
2. What is excluded—future earth movement, drainage failures after you leave, adjacent slope or neighbor grading, owner irrigation or alterations, cosmetic finishes?
3. How long does coverage last, and is it transferable if I sell?
4. What owner maintenance or monitoring is required to keep coverage?
5. Who stands behind the warranty if the company changes ownership or dissolves?
6. May I read the warranty document before I sign the contract—not only after final payment?

If answers are verbal only, ask for the written form. If the answer is “lifetime” with a long exclusion list, read the exclusions as carefully as the headline.

Red flags (pattern language, not legal advice)

Use these as decision aids:

• Pressure to sign the same day from photos alone, with no statement of what was inaccessible
• Down payment above CSLB limits without documented Blanket Performance and Payment Bond on file with CSLB
• License number missing from ads, bids, or contracts—or inactive / mismatched classification on CSLB check
• “No permit / no engineer / no geotech needed” as a blanket claim for structural foundation work
• A quote that cannot name mechanism, method, inclusions/exclusions, or permit path
• An abnormally low bid against otherwise comparable written scopes
• Refusal to let you verify license status, insurance certificates, or engineer of record

Photos help you prepare. They do not replace a site visit by the right professional class, and they do not authorize a complete price for a named parcel.

How this fits with cost literacy

Once scopes match, compare numbers using factor classes—not national “average cost” tables. Mechanism, access, method class, geotech and engineering, City fees, discretionary overlays, and restoration all move the stack. See what drives foundation repair cost. When settlement or deep support dominates the conversation after the interview, also use foundation settlement repair and foundation underpinning.

Request a Free Quote

If you want help taking a calm next evaluation step for foundation concerns in La Jolla—citywide—call (650) 739-6537, or request online. We do not diagnose from photos, invent licenses, or sell warranties.

Request a Free Quote

Related evaluations & services

Start with foundation repair for commercial repair framing and foundation repair cost for cost-factor and City fee context. Use foundation inspection when you need diagnosis sequencing. For engineering timing, see when to involve a structural engineer and what a foundation inspection covers. For quote-reading and factor classes, read what drives foundation repair cost.