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Rows of matching post-war ranch houses with aging shingle roofs in San Lorenzo Village

Roofing Contractor in San Lorenzo, CA

San Lorenzo Village broke ground in 1944 as one of the country's first planned post-war communities, and that origin is why a roof here is a different conversation. Entire streets were framed, vented and roofed in the same few years, so their problems arrive together. Apex Shield Roofing covers San Lorenzo from 1910 Webster St in Alameda, about 29 minutes (12 miles) away by our estimate, with a freeway traffic caveat. San Lorenzo is unincorporated, so Alameda County issues the permit. We look for the age-related faults that repeat down the block, and we tell you which ones apply to your house.
  • 4.9 stars from 60 Google reviews
  • Free written estimates
  • Photo updates by text and email
  • Office on Webster St, Alameda

Why a planned community ages in lockstep

The David D. Bohannon Company began San Lorenzo Village in 1944 under a Navy contract for East Bay war workers, and the National Park Service journal says its first phase was about 3,000 houses, later doubled by other builders. That scale matters for roofs. Houses framed and roofed within months of each other have the same eaves, the same vent counts and the same flashing details, and they fail in the same order.

Street of matching single-story 1940s houses with similar worn shingle roofs in San Lorenzo
A street of matching single-story houses built in the same years, with similarly worn roofs.
Attic vent and ridge line on a 1940s San Lorenzo Village house roof
A small gable vent and ridge line on a roof from the 1940s.

What to expect on a Village street is mostly repeated. The roof is likely a replacement, perhaps the second or third. Vents are small and few. Flashing around plumbing stacks and chimneys is the first thing to go. We check those before we quote anything bigger.

Cracked plumbing stack boot and flashing on a 1940s single-story house roof
A cracked rubber boot and worn flashing around a plumbing stack on an older roof.

Roofing services for San Lorenzo Village homes

  • Roof Repair

    Streets built together share the same weak spots, so a repair targets the vent, flashing or ridge that fails first on that style of house instead of re-covering a roof that still has life.

  • Roof Replacement

    Replacement on a 1940s house starts with layers and decking, and ventilation gets rethought while the roof is open, with a county permit check since the Village has no city hall.

  • Gutters

    Gutters for a Village house can go on with the new roof so the edge, drip edge and fascia are finished once, with downspouts routed away from the foundation.

  • Skylights

    A skylight added to an older roof leaks at the curb first, and we reseal where the flashing allows or replace the unit with the reroof so the curb is flashed in step with the shingles.

  • Emergency Roof Repair

    An aging roof that fails in a storm gets temporary protection first, then a plan once the deck has dried and the damage has been photographed.

  • Attic Venting Repair

    Original attics often rely on a few gable vents, so intake at the eaves and exhaust near the ridge are added or swapped while the deck is open during a Village reroof.

  • Roof Flashing Repair

    Plumbing stacks, chimneys and wall-to-roof joints are the first details to fail on houses framed in the same months, so flashing is checked and replaced before anything bigger is quoted.

  • Fascia and Soffit Repair

    Eaves built to the same pattern age together, and rotted fascia or soffit shows up when the gutters come off, so those boards are checked and replaced as part of the roofline.

The 1940s attic: ventilation before shingles

A roof is only as good as the attic under it. Air has to enter low at the eaves and leave near the ridge, and many mid-century attics have a few gable vents and not much more. During a reroof the decking is exposed and the vents can be swapped or added. Our attic venting repair page describes what that involves.

If a house has two roof layers already, the layers come off to the deck. Rotten decking found at that point is explained to you as a change order before work continues, as it was on one Alameda job.

Who signs off in an unincorporated town

San Lorenzo has no city government, so permits run through the Alameda County Building Department. The permit line in your quote shows who files, and the county has the final say. Neighbors in the same position include Ashland and Cherryland, while San Leandro and Hayward run their own offices. Castro Valley is a county town too.

New gutter hung on a repaired eave of a San Lorenzo Village house
A new gutter hung against a repaired eave and fascia on a small post-war home.

Coming out from Webster St

The office books you in, and Wayne or Pedro commonly does the walk-through. It is about a 29-minute drive in light traffic, and the same visit can look at the gutters. We send a written quote, then texts and photos during the work. At the end, a site supervisor walks the new roof with you.

We claim no San Lorenzo job. Warranty terms sit in the written contract, so ask about them first.

From customers on the island next door

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

“I previously hired Apex Shield Roofing for some smaller roof leak repairs, so I already knew their work before getting a full roof replacement this time. … I would recommend them to anyone in Alameda looking for trustworthy and skilled roofers for repairs or new installations.”
Troy A. · Google review · Alameda · 2025
“Charles and his team installed a new roof on our home some years back. … Recently, I noticed a small leak around the skylight in my garage.”
J. M. · Google review · 2025

Roofing in San Lorenzo: common questions

Why do San Lorenzo Village roofs all seem to fail at once?

Because they were built in the same years, so framing, vents and covering all age together. When one neighbor reroofs, take that as a prompt to check your own flashing, vent collars and eaves before the next heavy rain finds the weak spot.

What ventilation upgrades suit a 1940s home?

Start by counting existing vents, then match intake at the eaves to exhaust near the ridge. Some attics have only a few small gable or roof vents. Replacing vents during a reroof is a common step, and attic venting repairs are on our Google listing. Poor ventilation shortens shingle life and raises attic heat.

Can gutters be replaced with the roof?

Yes, and it is the efficient way to do it. Gutters installed after a reroof appear in Alameda reviews, and the crew can hang them once the fascia and drip edge are finished. Deeper or larger sections are an option on eaves that overflow in storms. The quote lists gutters as their own line.

Who issues a roof permit in San Lorenzo?

The Alameda County Building Department issues it, since the town has no city hall. Look for the permit line in the estimate, and have the county confirm who files it. That same third-party guide treats anything over roughly 200 square feet as permit work. San Leandro and Hayward use their own city offices.

Request a written estimate in San Lorenzo

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 San Lorenzo 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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