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Rain-darkened composition shingle roofs on older Napa homes under a gray winter sky

Roofing Contractor in Napa, CA

We cover the city of Napa, about 69 minutes (roughly 46 miles) from Webster St, our Alameda base. Expect freeway and bridge traffic on the way, and note that our Napa County service stops at the south end of the valley. The city's roofs have two local stories behind them: a magnitude 6.0 earthquake in August 2014 and a wetter climate than the Bay side, with about 31 inches of rain a year. Both are reasons to inspect before you decide anything.
  • 4.9 stars from 60 Google reviews
  • Free written estimates
  • Photo updates by text and email
  • Office on Webster St, Alameda

Old downtown buildings and a quake that is still part of the record

Napa's built history runs from an 1845 adobe to the 1875 Sam Kee Laundry (Wikipedia, Napa). The 2014 earthquake damaged many downtown buildings, and the City of Napa tagged 613 structures in its first inspection round, 113 red and 500 yellow. Quake-era roof damage can hide at flashing joints, ridges and valleys.

Roofer checks counterflashing at a brick chimney on an older home in Napa
A roofer checks counterflashing at the base of a brick chimney.

Our inspection starts at the chimney, then follows every valley and penetration. If you filed a claim after the quake or have a current claim, we document the roof with photos and meet the adjuster on site to walk the damage. We do not negotiate the claim; that is between you, your insurer or a licensed public adjuster.

Thirty-one inches of rain and the Napa River

The city averages 31.10 inches of rain a year (Wikipedia, Napa), more than the roughly 22 inches in Alameda (BestPlaces). A small defect has more water to let in here. After the Napa River flood of 2005, owners also know how fast winter can turn.

Blue tarp secured over a storm-damaged section of roof on a Napa home
A tarp secured over a damaged roof section ahead of rain.

Zone 2 and Napa's building division

Napa sits in Climate Zone 2, so a lighter cool-roof shingle is optional for a single-family reroof; the City of Napa building division has the final word. The estimate names the permit applicant.

Opera House, Imola and the river project

Napa's older civic buildings are a reminder of how long the city has been settled. The Napa Valley Opera House dates to 1879 and Napa State Hospital opened in 1875 in Imola, an unincorporated area that borders the city (Wikipedia, Napa). That border matters for roof permits: a Napa mailing address does not always mean a city parcel, so ask which building office covers yours.

The river is the other local landmark. After a flood in 1986, county voters narrowly approved a sales tax in March 1998 to fund the Napa River Flood Project, which covers six miles of the river and a mile of Napa Creek. Flood control is not roof work, but it explains why owners here ask about water first. If a ceiling stain follows a storm, we separate roof entry points from other sources by inspecting flashing, valleys and vents, and we document what we find.

Roofing for older Napa neighborhoods

  • Roof Repair

    Chimney flashing and valleys on older homes are the first places a shaken roof opens up, so a repair visit starts there and moves outward to every vent and wall joint.

  • Roof Flashing Repair

    Counterflashing set into brick can crack where the mortar joint moved in 2014. We reset and reseal the metal, then tell you plainly when the masonry needs a mason.

  • Historic Home Roofing

    Pre-war homes near downtown need decking checks, matching profiles and a question to the City about design review before a new color or material is ordered.

  • Roof Replacement

    Napa's Zone 2 location means a lighter cool-roof shingle is an option, not a requirement. We lay out the choices in the written estimate and count existing layers first.

  • Storm Damage Roofing

    With roughly 31 inches of rain a year, a wind-damaged roof needs covering quickly and documenting well, and we tarp what we can reach once we are on site.

  • Roof Insurance Claims

    If you have a claim open, we photograph the roof, write the scope and meet the adjuster to walk the damage. The negotiation stays with you, your insurer or a licensed public adjuster.

  • Roof Inspection

    A roof nobody has examined since the 2014 earthquake deserves one thorough look at chimneys, valleys and ridges. You get the photos and a written estimate afterward.

  • Emergency Roof Repair

    We tarp what we can reach first. The 69-minute drive and crew availability set the arrival time, so we explain a temporary cover over the phone before anyone is on site.

How a visit works from Alameda

You call the Alameda office, we set an inspection, and a written estimate follows. Because the drive is long, we group visits and book ahead. Urgent leaks start with a phone triage, and we cannot guarantee a time.

American Canyon, Fairfield and Vallejo close by

American Canyon, Fairfield and Vallejo are on our list as well. Reviews on this site are from Alameda only.

From customers on the island next door

4.9 stars from 60 Google reviews, as of May 2026. Read more reviews

“charles, service coordinator, did an excellent job helping me work with my insurance company on replacing my wind-damaged roof and repairing ceiling and wall areas affected by roof leaks.”
Y. M. · Google review · 2026
“I had an ongoing issue with leaking skylights after a past roof replacement done by another roofer.”
Emilia K. · Google review · 2026

Roofing in Napa: common questions

Should I have my chimney flashing checked after the 2014 earthquake?

If it has not been examined since, yes. Shaking can open the joint where flashing meets masonry even when shingles look fine from the ground. We check counterflashing and the roof around the chimney. Brick or mortar problems are a mason's job, and we will say plainly when that is the case.

Do you roof homes in the city of Napa, or only in American Canyon?

We serve both, but not the upper valley. The city of Napa is about 69 minutes from Alameda. Inspections are scheduled ahead, and we cannot promise a quick arrival for urgent leaks. Call, describe the roof, and we will tell you what is realistic.

Does a Napa mailing address always mean the City of Napa issues my roof permit?

Not always. Napa State Hospital sits in Imola, an unincorporated area that borders the city (Wikipedia), so some parcels with Napa addresses fall under the county instead. The estimate names who files your permit; confirm which building office covers your parcel before a start date is set.

Request a written estimate in Napa

The phone is the fast way. If the water is coming in now, call first and use the form later.

  • 4.9 stars from 60 Google reviews
  • Free written estimates
  • Photo updates by text and email
  • Office on Webster St, Alameda

Call about your Napa roof

Tell us the address and what you are seeing, and we will tell you straight whether we can get there.

Apex Shield Roofing · 1910 Webster St, Alameda, CA 94501 · +1 (209) 563-1278

Call +1 (209) 563-1278
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