Free roof inspection with deck photos before we talk money - GAF and Owens Corning certified installation
Before
After
Before
After
Before
AfterRoofers in San Lorenzo, CA
Roofing in San Lorenzo means working on homes built mostly in the 1940s and 1950s, many of them ranch-style with low-slope or gently pitched roofs that have been patched and re-patched over decades. What that means for you: your roof has likely seen multiple repairs, some done well and some not, and the real question is what’s underneath the shingles. We’re Crestview Roofing, and we handle repairs, replacements, and new installations across San Lorenzo. Call (325) 246-5075 and a live person answers. Always.
Why San Lorenzo Homes Are Different
San Lorenzo is flat. That’s not a small detail when it comes to roofing. Flat and low-slope roofs drain slowly, and standing water is the number one enemy of any roof system. Homes here lean heavily toward post-war ranch construction with composition shingle roofs, though you’ll find a fair number of clay tile accents on the older and larger lots around the Hesperian Boulevard corridor and the neighborhoods east toward the bay. The marine layer rolls in most summer nights, keeping surfaces damp longer than inland areas, which means algae and moss growth is a real issue on north-facing roof planes. We also see original wood shake roofs still in place under newer layers in pockets of town, which most homeowners don’t discover until a leak appears. Permits in unincorporated Alameda County, which covers San Lorenzo, follow county rules, and any structural work on a roof will need to go through county inspection. Our team handles that paperwork and pulls the permits when the job requires it.
Our Main San Lorenzo Services
Most of our work in San Lorenzo falls into two buckets: keeping an aging roof alive with targeted repairs, or replacing it entirely once it’s past its useful life. New construction and major additions make up the rest. Here’s what each looks like in San Lorenzo specifically.
Roof Repair in San Lorenzo
Roof repairs in San Lorenzo usually start with a leak around a vent pipe, a valley, or flashing, which is the metal material that seals joints around chimneys and wherever the roof plane changes direction. Because so many homes here are from the 1940s and 1950s, we often find multiple layers of shingles and original decking that needs attention once we open things up. We give you a written price before any work starts, so you know exactly what the repair costs before we lift a tool. Read more about Roof Repair in San Lorenzo.
Roof Replacement in San Lorenzo
A full roof replacement in San Lorenzo means tearing off everything down to the decking, replacing any damaged plywood or OSB, installing fresh underlayment and new shingles, and re-flashing every penetration. Homes here often have original 1×6 skip sheathing rather than plywood, which changes the installation method and, occasionally, the cost. We document the whole process with before-and-after photos so you can see what was done without climbing a ladder. Roof Replacement in San Lorenzo has the full breakdown.
Roof Installation in San Lorenzo
New roof installation in San Lorenzo covers additions, ADUs, and full new-construction builds. County code requires specific underlayment and ventilation details in this climate zone, and getting those right the first time prevents expensive problems five years down the road. We work with the county inspector from start to finish and you receive written documentation of everything we install. Head to Roof Installation in San Lorenzo for project timelines and material options.
What happens when you call
- 1
A real person answersNo phone trees – you reach a local pro.
- 2
You get an upfront price rangeHonest numbers before anyone is dispatched.
- 3
A background-checked tech heads outLicensed & insured, dispatched right away.
- 4
You approve before work beginsNothing starts until you say go.
Brands We Service in San Lorenzo
We install and repair roofs using shingles from GAF, CertainTeed, and Owens Corning, three of the biggest names in roofing materials for good reason. Our suppliers warehouse stock nearby in the East Bay, so lead times on standard shingle colors stay short. See what we carry across the region at our brands.
Pricing for Roofers in San Lorenzo, CA
| Service | Typical range in San Lorenzo |
|---|---|
| Small roof leak repair | $250 – $500 |
| Flashing replacement | $350 – $850 |
| Minor shingle replacement | $200 – $450 |
| Roof inspection | $150 – $300 |
| Roof tune-up / small roof repair | $350 – $700 |
| Standard roof replacement (shingle) | $9,000 – $16,000 |
| New roof installation | $10,000 – $18,000 |
What pushes a job toward the higher end in San Lorenzo is almost always what’s underneath: multiple shingle layers, rotted decking, or original skip sheathing that needs an overlay before new materials go down. Whatever the number turns out to be, you’ll have it in writing before work begins. You’ll never see a surprise line item on the invoice.
Neighborhoods We Serve in San Lorenzo
We cover all of San Lorenzo, from the streets around Hesperian Boulevard and Grant Avenue to the neighborhoods bordering the Hayward and San Leandro edges. If you’re within the unincorporated area, we’re local to you. Our crews typically reach San Lorenzo from our Bay Area dispatch within the hour for scheduled work.
- San Lorenzo Village
- Hesperian Boulevard corridor
- Del Rey
- Washington Manor area
- Bay-Fair adjacent neighborhoods
Service Area – Cities Near San Lorenzo
We serve more than just San Lorenzo. Our nearby work takes us to Castro Valley, CA, San Leandro, CA, Union City, CA, and Oakland, CA. If you’re just outside San Lorenzo in either direction, call (325) 246-5075 and we’ll confirm coverage before you book a visit.
Serving San Lorenzo, CA – Our Local Coverage Area
We’re based in the San Lorenzo area and know this community well. Use the map below to see our service coverage – if you’re nearby, we can almost certainly help.
FAQs About Roofers in San Lorenzo
Yes. San Lorenzo sits in unincorporated Alameda County, so permits come through the county building department. We handle the paperwork, schedule inspections, and keep you copied on every step. You’ll know when the inspector is coming and when the job passes.
Call (325) 246-5075 and a live person answers, day or night. We schedule inspections in San Lorenzo within a few business days in most cases, and a written price follows the inspection. You’ll know the cost of any repair before we begin.
No. The price on your written estimate is the price on your invoice. If we open up a roof and find something we couldn’t see from the outside, we stop, call you, and walk you through options with a new written price before continuing. No surprises, no change orders you didn’t approve.
What happens when you call
- 1A real person answersNo phone trees - talk to a local roofing pro.
- 2You get an upfront price rangeHonest numbers before anyone is dispatched. No surprises.
- 3We come out and measureLicensed & insured, at a time that suits you - the visit and the quote are both free.
- 4You get the price in writingLine-itemed, yours to keep, and nothing starts until you say go.
What San Lorenzo Customers Say
"Booked an inspection online and got a text with the inspector's name and ETA. He sent photos from the roof. Showed me the lifted shingles and fixed them the next day."
- Matt B."Good roof, clean job. Materials arrived a day late, but the update came before I called."
- Leah K."Easy communication all the way through. I never had to call the office, the texts answered every question."
- Denise A.