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Rain-soaked shingle roofs among evergreen trees on a slope below Mount Tamalpais

Roofing Contractor in Kentfield, CA

Kentfield is on our map, about 46 minutes and 26 miles from the Webster St office in Alameda, with bridge traffic adding to that. Wikipedia reports that this community on the slopes of Mount Tamalpais gets about 48 inches of rain a year, one of the highest totals in the Bay Area. Alameda gets about 22. A roof here is tested by volume, and the parts that matter most are the ones you cannot see.
  • 4.9 stars from 60 Google reviews
  • Free written estimates
  • Photo updates by text and email
  • Office on Webster St, Alameda

A wet-weather roof

Rain totals vary by source: Wikipedia gives about 48 inches a year for Kentfield and 44 inches for the 1991-2020 normal. Either way, Alameda's 22 inches is about half. That doubles the water a roof has to shed, and it shows in the details under the shingle.

Roofer rolling out synthetic underlayment over a bare roof deck before shingles
A roofer rolls out underlayment over a bare roof deck.

What holds up under real rain

Underlayment and flashing carry the load. We check drip edge at the eave, step flashing at walls, and the sealing around vents and skylights. A leak often traces to a flashing joint, not the field of shingles. On one Alameda job, flashing and gutter faults from a previous roofer were fixed at the same visit.

  • Roof Repair

    With this much rain, a small flashing gap turns into a stain within a season. Kentfield sees rain on about 69 days a year, so there are few dry weeks for a leak to hide in.

  • Roof Replacement

    A reroof here is judged by its underlayment, flashing and deck, not only the shingle. We write each layer into the estimate and photograph the deck at tear-off.

  • Gutters

    Heavy runoff overwhelms undersized gutters, so we check size and downspout count. Wikipedia records 11.56 inches in a single day in 1967, so outlet size is not a minor detail.

  • Emergency Roof Repair

    Winter leaks are common here, and urgent response from Alameda depends on crew availability. Photograph the stain, move belongings and call early; we say plainly what the crews can reach.

  • Roof Flashing Repair

    Water running down a wet wall or chimney finds a failed step flashing joint fast. We reseal or replace flashing and photograph each joint before and after, so you see the fix and can show it to an insurer.

  • Roof Inspection

    Where rain falls on about 69 days a year, small defects show up fast. A photographed inspection before the wet season, with the deck probed at the eaves, sets the repair list while the weather is dry.

Metal drip edge and step flashing at the eave and sidewall of a wet roof
Drip edge and step flashing meet at an eave and sidewall.

Ross next door, but not the same office

Ross borders Kentfield to the north, per Wikipedia. It is its own town, while Kentfield falls under Marin County. If your address is near the line, confirm which office handles your permit. The written estimate states who pulls it.

From Ross Landing to the Kent estate

James Ross bought Rancho Punta de Quentin in 1857 and set up Ross Landing, where steamers came up Corte Madera Creek, per Wikipedia. Albert Emmett Kent bought the land from the Ross estate in 1871, the railroad station was renamed Kent in the 1890s, and the Kentfield name came with the first post office in 1905. With that much history, house ages vary. Of the 2,674 housing units, 75.6% are owner-occupied. An older house may have had its roof replaced more than once, so we count layers and probe the deck at the eaves before we quote.

What to expect from us

An inspection by Wayne or Pedro comes first, then a written estimate with photos. On one Alameda job, aged decking turned up at tear-off and the change order was explained before work continued. Expect the same order of events in Kentfield, where damp decks are a real possibility after wet winters. For active leaks, ask what the crews can do that day; from Alameda it is not immediate.

Kentfield is also home to College of Marin, but the campus does not affect your roof. Nearby, we also cover San Anselmo, Larkspur and Corte Madera.

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 Kentfield: common questions

Does heavy rain change how a roof should be built?

It raises the stakes on the layers under the shingle. Underlayment, flashing at walls and chimneys, and a clean drip edge decide whether water reaches the deck. Ask your estimate to list each one. Heavier rain also makes it worth fixing small leaks sooner rather than waiting for spring.

Is Ross handled the same way as Kentfield?

Not for permits. Ross is a separate incorporated town to the north, while Kentfield is unincorporated and falls under Marin County. The conditions are similar, since both sit below Mount Tamalpais, but you should confirm the right permit office for your address before work starts.

How much rain can a Kentfield roof see in one day?

A lot. Wikipedia records 11.56 inches on January 21, 1967, and 26.95 inches in the wettest month, February 1986. Those are extremes, but they explain why flashing, underlayment and gutter outlets are specified generously here. Ask the estimate to list each one, and fix small leaks before they get another wet season.

Request a written estimate in Kentfield

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 Kentfield 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

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