How to Choose a Stucco Contractor in the North Bay

Stucco is invisible work. By the time you can judge it, the wall is closed — the barrier, the flashing, the lath, every decision that determines whether your building stays dry for decades is buried behind a finish coat that looks roughly the same whether the work underneath was excellent or terrible. Which means the most important quality control on a stucco job happens before you sign anything: choosing who does it.

I’ve spent 41 years in this trade and 21 running my own company in the North Bay, and I’ve repaired a lot of other people’s invisible work. Here’s how I’d vet a stucco contractor if I were a homeowner in Marin or Sonoma County.

Start with the license — and actually verify it

Every legitimate contractor in California carries a license from the Contractors State License Board, and you can verify any of them in about a minute at cslb.ca.gov — search by license number or business name. Don’t take the number on a business card on faith; the lookup shows you whether the license is current and active, what it covers, and whether workers’ compensation insurance is on file.

For stucco work, two classifications matter:

• C35 — Lathing & Plastering. The specialty license for the trade itself: lath, plaster, stucco, the coats and finishes. This is the minimum you should expect from anyone proposing stucco work.
• B — General Building. The general building license, which speaks to the whole assembly — framing, sheathing, windows, waterproofing, and how the trades fit together.

The combination is worth understanding. A C35-only contractor knows plaster; a contractor holding both B and C35 is qualified on the plaster and on the wall system it belongs to — which matters enormously when a repair turns out to involve flashing, framing, or window integration, as the serious ones usually do. Fogg Construction holds both classifications under CSLB License #844981, and I’d encourage you to look it up right now and confirm it — then hold every other bidder to the same sixty seconds of homework.

While you’re at the CSLB site, note one more thing: California contractors are required to put their license number on their advertising. A truck, website, or proposal with no license number anywhere is telling you something.

Confirm the insurance, not just the claim

“Licensed and insured” is easy to say. Ask for certificates: general liability, and workers’ compensation if the contractor has employees — the CSLB lookup shows the workers’ comp policy on file. This isn’t paperwork pedantry. Stucco work means people on scaffolds at your property; if a contractor is cutting corners on insurance, you’re the one exposed, and it’s a reliable preview of where else corners get cut.

Demand a diagnosis-first bid

Here’s the deepest separator in this trade. Stucco problems are easy to misjudge in both directions — cosmetic cracking gets quoted as a full tear-off, and serious barrier failures get caulked and painted over. Both mistakes come from the same source: bidding the symptom without diagnosing the cause.

A contractor worth hiring will want to understand why your stucco failed before pricing what it costs to fix. That might mean a careful inspection of cracking patterns, staining, flashing, and drainage details; on stubborn leaks, it can mean moisture-infiltration consulting with small discovery openings to confirm where water is actually entering. Compare that with the estimator who quotes a number from the driveway in ten minutes. One of them is pricing your wall; the other is pricing his calendar.

A related tell: be suspicious of the contractor whose answer is always the biggest job. If the structure behind the stucco is sound, a proportionate repair — a crack-inhibitor system, a localized barrier rebuild — often saves the wall without a tear-off. The right contractor tells you when the smaller fix is the honest one.

Questions worth asking every bidder

• Who actually performs the work? Your own crew, or a sub you broker? Who supervises, and how often is the principal on site?
• How will you handle the moisture barrier and flashing? If the answer is only about plaster and color, the bidder is thinking about the part of the wall that doesn’t keep you dry.
• What happens if you open the wall and find damage? You want a contractor who documents what’s found and corrects it before closing up — not one who seals surprises inside the wall to protect the schedule.
• How will the repair be matched to my existing texture? Texture matching is a hand skill; ask to see examples of repairs that disappeared.
• Can I see work in my area? Local references, in your town’s climate and housing stock, beat a glossy portfolio from somewhere else.

The pattern behind all of it

Every check on this list is really the same check: does this contractor treat your wall as a system they’re accountable for, or a surface they’re decorating? Licenses, insurance, diagnosis-first bidding, straight answers about what’s behind the stucco — they all point at the same kind of operator. Find that, and the invisible work takes care of itself.

If you’re gathering bids for stucco work anywhere in the North Bay, we’d be glad to be one of them — and to be held to everything written above. Call Fogg Construction at 415-827-0782 or reach us through our contact page for an honest assessment of what your walls actually need.