A stucco single-story home beside a vineyard, with hills and valley mist behind

Gutters and Roofing in Napa County

From American Canyon in the south to Calistoga in the north, and east to Lake Berryessa. Family-owned.

Napa County, in short

Do I need a permit to replace my roof in Napa County?

Yes. Inside most cities and towns, its own building department issues it. In the unincorporated communities, such as Angwin, Deer Park, Moskowite Corner, Oakville, Rutherford and Silverado Resort, the County’s Planning, Building and Environmental Services issues it. If you wish, we can also pull the permit for you.

The story of Napa County

One of California’s 27 original counties, formed in 1850.

The County’s own pages say Napa County was one of the 27 original counties established in 1850.

Five places have incorporated: Napa in 1872, St. Helena in 1876, Calistoga in 1886, Yountville in 1965 and American Canyon in 1992, by the Napa LAFCO’s account.

The Napa County Historical Society says the first settlers came to the county about 10,000 to 12,000 years ago, and that it was home to the Patwin, the Wappo, the Pomo, the Lake Miwok and the Coast Miwok.

The Society says Chinese immigrant labor built the county’s wine industry between 1870 and 1900. The Napa Valley Vintners say the valley was the first American Viticultural Area designated in California, in 1981. Lake Berryessa was formed in 1957, when the Bureau of Reclamation built Monticello Dam on Putah Creek.

Read the full story of Napa County

Fire safety

Roofs and rain gutters

The County’s code declares “the presence of prohibited materials on the roof or in the rain gutter of any structure” a nuisance that the owner must abate, at the owner’s sole expense, in the unincorporated area. It defines prohibited materials as “combustible vegetation, green waste, rubbish, or weeds.”

How much defensible space

The County’s code defines defensible space as the area within a one hundred-foot radius of a structure, or to the property line, whichever is less; the enforcement officer may increase the distance.

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The first five feet

The County’s code defines an “Ember Resistant Zone” as “a noncombustible zone within five feet of a structure, using non-flammable landscaping materials and/or approved high-moisture-content annuals and perennials,” and requires it for new construction only. Zone 0, the State’s rule for the first five feet around a home: adopted by the Board of Forestry; in final review with the Office of Administrative Law; no effective date known.

Who answers the call

In the unincorporated county, fire protection is the Napa County Fire Department, which the County runs under a contract with CAL FIRE.

The County’s fire hazard map

CAL FIRE’s Office of the State Fire Marshal has released updated 2025 Fire Hazard Severity Zone maps for local areas. The County’s Fire Marshal page says: “The Napa County Board of Supervisors will adopt these new maps within 120 days to meet OSFM guidelines,” and links a map viewer where you can look up your address. The page does not say the Board has adopted them.

County page read Nov 5, 2026

Need a hand with this? Gutter guards

Culture and history

Lake Berryessa

The Bureau of Reclamation built Monticello Dam on Putah Creek in 1957, and the town of Monticello now lies under the lake. Reclamation’s page gives the lake as 23 miles long and 3 miles wide, with 165 miles of shoreline.

Bale Grist Mill State Historic Park

A water-powered grist mill built in 1846, three miles north of St. Helena, with a 36-foot water wheel; the park also holds the site of the first church in the Napa Valley and a Pioneer Cemetery.

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Napa County Historical Society

Set up on May 14, 1948 by local residents, it runs a museum and a research library and archive in the historic Goodman Library in downtown Napa.

Checked Oct 14, 2026

The 1976 tasting in Paris

At a blind tasting in Paris on May 24, 1976, a 1973 Chateau Montelena Chardonnay and a 1973 Stag’s Leap Wine Cellars Cabernet Sauvignon scored first in their groups, according to the Smithsonian, which holds the bottles in its permanent collections.

Community

Napa Valley Vine Trail

The Napa Valley Vine Trail Coalition describes itself as a grassroots, non-profit organization creating a 47-mile multi-use trail separate from cars.

Checked Oct 14, 2026

Parks and open space

The Napa County Regional Park and Open Space District, created after the county’s voters approved Measure I in November 2006, says it has protected more than 6,000 acres and built or operates over 217 miles of recreational trails.

Checked Oct 14, 2026

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Firewise USA communities

Napa Firewise lists 21 communities as recognized Firewise USA communities, among them Angwin, Calistoga, Deer Park, Pope Valley and Silverado; it describes such a community as one where neighbors unite to reduce wildfire risk through education, planning and action.

Checked Oct 14, 2026

County rules

Class A roofs

In the unincorporated communities, “all roof coverings shall be a minimum of Class A roof assemblies and roof coverings,” says the County’s code (Section 15.12.220).

The building code the County uses

The County’s code adopts the 2025 California Building Code and the 2025 California Residential Code by reference, with its own changes (Section 15.12.010).

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Permits and fees

The County’s Planning, Building & Environmental Services takes re-roof applications online through its Online Permit Center, under “Roof Replacement (Re-roofs)”. The County says its building permit fees are based on the total value of the project, and that its calculator gives estimates only: “The actual fees will be determined by the Building Division when you submit a complete permit application.”

County pages read Nov 5, 2026

Need a hand with this? Roof installation

Storms, flood and drainage

How much rain

NOAA’s 1991-2020 normals put the yearly rain at the six county weather stations that have one between 20.23 inches at Napa County Airport and 39.71 inches at Angwin (Pacific Union College).

When it falls

At those six stations, 89 to 91 percent of the yearly rain falls from November to April, and July is the driest month, with 0.00 to 0.01 inch.

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Check your flood zone

The County’s flood district says to use the County’s GIS public map viewer to search your address or parcel, where FEMA flood zones show as layers, and adds: “flooding also occurs in areas outside designated FEMA flood zones (for example roadway flooding).”

Flood insurance

The County’s flood page says that “Homeowner’s insurance policies do not cover damage from floods,” and that in most cases there is a 30-day waiting period before National Flood Insurance Program coverage takes effect.

Sandbag stations

The County lists sandbag stations across the county and notes that “not all sites are open. Generally, sites open when extreme rain events are expected.”

County page updated Sep 30, 2026

Need a hand with this? Gutter cleaning

Programs, loans and insurance

Free curbside chipping

The County of Napa and the Napa County Fire Department offer free curbside chipping of brush and tree limbs from your own property to all residents who live in the unincorporated areas of Napa County, for residential use only. The service runs from April through October, and a pile can be up to 50 feet long, 3 feet high and 10 feet wide. The County’s page currently says the program is closed until the 2027 season.

County page read Nov 5, 2026

Defensible Space Cost Share

Napa Firewise, with funding from CAL FIRE, reimburses defensible space work done after a no-cost home evaluation, up to $3,500 per household, for homes in the High or Very High Fire Hazard Severity Zones; the work must be approved before it starts, and only first-time participants can join until further notice. Income-qualified households may receive up to 100 percent back; other eligible households may qualify for 50 percent, both capped at $3,500.

Program page read Nov 5, 2026

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Neighbors Helping Neighbors

Napa Firewise’s team does hand-tool defensible space work at no cost, for homeowners and renters or when a neighbor refers a home. The Spring 2026 window is closed and the program has no regular schedule, so check back.

Checked Oct 14, 2026

Earthquake Brace + Bolt

The California Residential Mitigation Program’s Earthquake Brace + Bolt gives up to $3,000 toward a code-compliant seismic retrofit of a qualifying house: wood-framed, built before 1980, with a raised foundation. Registration opens for a limited time each year, and the program’s 2025 list of Northern California ZIP codes includes American Canyon, Angwin, Calistoga, Deer Park, Napa, Pope Valley, Saint Helena and Yountville. The program’s page invites you to sign up to be notified when registration opens.

Program page read Nov 5, 2026

The State’s Fire Risk Reduction Community List

The State’s Fire Risk Reduction Community List, in effect from July 1, 2026, names the County of Napa and the Calistoga Fire Department. The Department of Insurance’s Safer from Wildfires page describes Fire Risk Reduction Communities as local agencies in a state responsibility area or a very high fire hazard severity zone “that meet best practices for local fire planning,” certified by the Board of Forestry. Ask your insurer what it means for your policy.

List effective Jul 1, 2026

Where we work

Towns in Napa County

Cities and towns

American Canyon

Fire: American Canyon Fire Protection District

Calistoga

Fire: Calistoga Fire Department

Napa

Fire: City of Napa Fire Department

St. Helena

Fire: St. Helena Fire Department

Yountville

Fire: Napa County Fire Department, by contract

Where we work

Napa County and the 5 towns we serve

Map of Napa County and its towns
Map: boundaries from the U.S. Census Bureau

The story of Napa County

The County’s own pages say Napa County was one of the 27 original counties established in 1850. Five places have incorporated: Napa in 1872, St. Helena in 1876, Calistoga in 1886, Yountville in 1965 and American Canyon in 1992, by the Napa LAFCO’s account.

The Napa County Historical Society says the first settlers came to the county about 10,000 to 12,000 years ago. It names the Lake Miwok in the Pope Valley and Clear Lake areas, the Pomo in the north and west, the Coast Miwok in the south, and the Patwin in the east and north, who surrounded the Wappo, “making the region very culturally diverse.” It adds that many places in the county take their names from Native words, among them Soscol, Tulucay, Rancho Caymus and the Mayacamas Mountains.

The Napa Valley Railroad began operations in 1864, the Wine Train’s own account says. The Oat Hill Mine Road between Calistoga and the quicksilver mines was started in 1873 and officially opened in 1893. The Society says that from 1870 through 1900 the wine industry was built “predominantly using Chinese immigrant labor,” up to 80 percent of the vineyard labor force by the 1880s, and that Chinese workers dug wine caves, some still in use today. Beringer’s heritage page dates the start of its 1,200-foot wine tunnel to 1876.

Charles Krug calls its winery estate Napa Valley’s oldest, established in 1861, and Beringer calls itself the longest continuously operating winery in Napa; each is the winery’s own claim. The Napa Valley Vintners, a trade group founded in 1944, say the valley became the home of the first Agricultural Preserve in the U.S. in 1968. On May 24, 1976, at the Judgment of Paris, a 1973 Chateau Montelena Chardonnay and a 1973 Stag’s Leap Wine Cellars Cabernet Sauvignon scored first in their groups, according to the Smithsonian, which holds the bottles.

East of the valley, Lake Berryessa was formed in 1957 when the Bureau of Reclamation built Monticello Dam on Putah Creek; the town of Monticello lies under it. Reclamation’s page gives the lake as 23 miles long and 3 miles wide, with 165 miles of shoreline. In November 2006 the county’s voters approved Measure I, which created the Napa County Regional Park and Open Space District.

Why homeowners call us

  • Family-owned since 2002.
  • Licensed, bonded and insured: CSLB #1053780.
  • Gutters and roofs, from cleaning and repairs to new installations.
  • Serving the Bay Area for 24 years.
  • We cover all nine Bay Area counties.

Our services: gutter services (cleaning · installation · gutter guards) · roofing (roof installation)

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