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.


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.

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.

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.

