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General contractors in Napa County, CA

441 eligible B and B-2 licenses based in Napa County, per CSLB records dated Oct 16, 2026.

Checked Oct 18, 2026 Verify live on CSLB

25 of 441 Napa County GCs

Sorted by workers' comp policy on file, then years licensed (we don't have permit data for Napa County). How we rank. Payment doesn't change the order.

Bid requests come to GC Bay Area first, not straight to the contractor.

2

Michael Quast

Based in Calistoga

workers’ comp insured · licensed 57 yrs

Active · B · #259235 · Bond ✓ · Workers' comp ✓ · Verify on CSLB

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6

Trainor Builders

Legal name: Three Soles Inc · Based in ST Helena

workers’ comp insured · licensed 52 yrs

Active · B · #299037 · Bond ✓ · Workers' comp ✓ · Verify on CSLB

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7

OLDE World Designs

Based in Oakville

workers’ comp insured · licensed 50 yrs

Active · B · #321641 · Bond ✓ · Workers' comp ✓ · Verify on CSLB

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10

Krueger Bros Builders Inc

Based in Napa

workers’ comp insured · licensed 47 yrs

Active · B · #364692 · Bond ✓ · Workers' comp ✓ · Verify on CSLB

License renewal due Oct 31, 2026.

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16

DP Builders

Based in ST Helena

workers’ comp insured · licensed 40 yrs

Active · B · #490224 · Bond ✓ · Workers' comp ✓ · Verify on CSLB

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19

American Eagle ENT

Legal name: Kincanon Enterprises Inc · Based in Napa

workers’ comp insured · licensed 39 yrs

Active · B · #511101 · Bond ✓ · Workers' comp ✓ · Verify on CSLB

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24

Michael Cerasoli

Based in Napa

workers’ comp insured · licensed 38 yrs

Active · B · #529184 · Bond ✓ · Workers' comp ✓ · Verify on CSLB

Workers' comp policy ends Nov 27, 2026. Ask for the renewal certificate.

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Business build-out? See commercial GCs in the Bay Area

510 active B and B-2 licenses are based in Napa County in the CSLB file dated Oct 16, 2026, and half of them have been licensed for 20 years or more. The County building division covers unincorporated areas only and publishes three plan review tracks: Express in 3 to 5 business days, Quick in 7 to 10 and Standard in 28 (Napa County Planning, Building & Environmental Services, checked Oct 18, 2026).

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Check it against the same CSLB data.

Searches active and lapsed Bay Area B and B-2 licenses. Other classes: search on CSLB.

Before you hire in Napa County

Building permits in Napa County go through Napa County Planning, Building & Environmental Services, Building Division.

Source: Napa County Planning, Building & Environmental Services, Building Division, checked Oct 18, 2026

Napa County's building process covers unincorporated areas only; the City of Napa and the other towns issue their own permits. Since Jan 1, 2024, every application goes through the county's Online Permit Center.

Source: Napa County Planning, Building & Environmental Services, checked Oct 18, 2026

The county publishes three plan review tracks: Express in 3 to 5 business days, Quick in 7 to 10, and Standard in 28. Review fees are collected before review starts.

Source: Napa County Planning, Building & Environmental Services, checked Oct 18, 2026

Inspections are booked through the Online Permit Center, by phone at 707-253-4416 or by text at 866-307-2630. The Building Division won't final a permit until every other county department on it has signed off.

Source: Napa County Planning, Building & Environmental Services, checked Oct 18, 2026

Wildland-urban interface construction rules (CBC Chapter R337) apply to rebuilding in the State Responsibility Area. Ask the county whether your parcel is inside the WUI area.

Source: Napa County Planning, Building & Environmental Services, checked Oct 18, 2026

Napa County lists only two common exemptions from a building permit: sheds of 120 sq ft or less with no utilities and fences no taller than 7 ft. Check with Building Services at 707-253-4417 before work starts.

Source: Napa County Planning, Building & Environmental Services, checked Oct 18, 2026

B or B-2: which license fits your job

Both classes can act as your prime contractor. A B-2 is limited to remodels of an existing wood-frame house. If your plan changes the structure, look for a B.

JobB General BuildingB-2 Residential Remodeling
Kitchen or bath remodel in an existing houseYesYes, when the contract covers 3 or more unrelated trades
Addition or new roomsYesNo
Moving or removing a load-bearing wallYesNo
New homeYesNo
Commercial or tenant workYesNo

Sources: CSLB, class B and class B-2, checked Oct 18, 2026. More in B vs B-2.

California rules for your contract

A down payment on a home improvement contract can't be more than $1,000 or 10% of the price, whichever is less. No progress payment can be more than the work done or materials delivered.

Source: California B&P Code 7159.5, checked Oct 18, 2026

Work under $1,000 in total (labor and materials) that needs no building permit doesn't require a license. The exemption doesn't apply if the person advertises as a contractor, has employees, or splits a job to stay under the limit.

Source: California B&P Code 7048, checked Oct 18, 2026

Every licensed contractor must keep a $25,000 contractor's bond on file with CSLB. That has been the amount since January 1, 2023.

Source: CSLB, bond requirements, checked Oct 18, 2026

A contractor with employees must carry workers' comp. Until 2028, a B contractor with no employees can legally file an exemption, so check which one yours did. From January 1, 2028, a workers' comp certificate is required for every license.

Source: CSLB, workers' compensation, checked Oct 18, 2026

Complaint history isn't in CSLB's free data files, so we don't show it. Check complaints on CSLB before you sign.

Questions about hiring in Napa County

How many licensed general contractors are based in Napa County?

510 active B and B-2 licenses list Napa County as the business city in CSLB's records dated Oct 16, 2026. We list 441 of them; the other 69 have no bond on file or hold a specialty-trade license. Each card's "Verify on CSLB" link opens that license's live record.

Which license does a home remodel need?

A B (General Building) license can take a prime contract that involves two or more unrelated trades other than framing or carpentry. A B-2 (Residential Remodeling) license covers remodels of an existing wood-frame house with three or more unrelated trades, and it can't be used for additions, structural work or new homes.

How much can a contractor ask for as a down payment?

In California, a down payment on a home improvement contract is capped at $1,000 or 10% of the contract price, whichever is less.

Do I need a licensed contractor for a small job?

Work under $1,000 in total that needs no building permit is exempt from licensing. The exemption doesn't apply to someone who advertises as a contractor, has employees, or splits a job to stay under the limit.

What does "exempt" mean under workers' comp on a card?

The contractor told CSLB it has no employees. Until January 1, 2028, a B contractor with no employees can legally file that exemption. Ask whether anyone besides the owner will work on your property.

Where do I get a building permit in Napa County?

Permits are handled by Napa County Planning, Building & Environmental Services, Building Division; the link is in "Before you hire" above. Ask your contractor who will pull the permit and have it in the contract.

General contractors near Napa County

Other project types in Napa County

How this list is built

License class, status, dates, bond and workers' comp come from the California Contractors State License Board's public data files. The Master file is dated Oct 16, 2026, the workers' comp file Oct 17, 2026, and we processed them on Oct 18, 2026. Of 510 active licenses in Napa County, 69 are left out: no bond on file, or a specialty-trade license. Each card's "Verify on CSLB" link opens that license's live record. Read the full method. Related: how to verify a license, bond and insurance, complaints.

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