Roofing Company in Alum Rock - Free Roof Inspection, Written Price

Fast, Reliable Roofing Company Across Alum Rock

If you’re looking for a roofing company that shows up on time and puts the price in writing before any work starts, you’re in the right place. We’re Brennan Roofing Co San Jose, and we serve Alum Rock with roof repair, replacement, inspection, and full installations. Our crews know the low-pitch ranch homes, the foothill raccoon damage, and the county permitting quirks that define roofing here. Call (669) 238-2101 to schedule a free estimate. A live person answers, day or night.

Call (669) 238-2101

Key Takeaways:

• Written price before any work begins, every time, no exceptions
• 365-Day Done Right Promise: full-year written guarantee with free return visits
• Background-checked, uniformed technicians on every Alum Rock job
• We scope county septic and well setbacks before quoting, not after you sign

Why Brennan Roofing Co San Jose Is Alum Rock’s Preferred Roofing Company Company

Alum Rock homeowners call us because we operate under the Garrison Standard. That means the price goes on paper before a single shingle comes off, the technician at your door is background-checked and in uniform, and the guarantee is written for one full year. If a repair fails within that year, we come back and make it right at no charge. No phone tag, no chasing a sub who disappeared.

We’re part of the Garrison Partners family, founded in 2000. Our Alum Rock location is independently owned and operated, led by Travis Oakley. Travis holds every job to the Garrison Code: show up inside the promised window, do the work right the first time, and leave the site cleaner than you found it. That’s not marketing talk. It’s the standard every estimate and work order is measured against.

Local reputation matters in Alum Rock. Homeowners here talk to neighbors on McKee Road, off Alum Rock Avenue, and up toward the country club. When a roofer leaves a mess or a bid that moves at the door, word travels fast. We’ve built our Alum Rock presence on showing up with a written scope, a real material list, and a price that doesn’t shift.

Metal Roof Installation in Alum Rock

Metal roof installation in Alum Rock runs $14 to $24 per square foot installed, depending on panel profile, roof pitch, and whether we’re tearing off existing layers. That puts a typical 1,800-square-foot roof between $25,000 and $43,000. Metal handles the intense Alum Rock summer sun far better than asphalt, and it’s a smart choice on acreage where homeowners plan to stay long term.

Standing Seam vs. Exposed Fastener Panels

Standing seam is the premium option: concealed fasteners, no exposed screws, and a 30-50 year manufacturer warranty from lines like Boral. Exposed fastener panels cost less upfront, but the gasketed screws need maintenance every 10-15 years. On an Alum Rock ranch with a low pitch, we often recommend standing seam for the cleaner drainage profile.

When Metal Makes Sense on Alum Rock Acreage

If your property has outbuildings, a shop, or a detached ADU, metal lets you match the main house and outbuilding roofs in one clean pass. Long hauls to the east side of Alum Rock near the foothills add modest material delivery time, but metal’s lifespan more than offsets the initial cost for a homeowner who isn’t planning to move.

Residential Roofing in Alum Rock

Residential roofing in Alum Rock covers everything from a small repair on a stucco ranch to a full tear-off and replacement on a craftsman bungalow. The most common job here is a composition shingle replacement. A full tear-off and architectural shingle install on a 1,500 to 2,200-square-foot Alum Rock home typically runs $12,000 to $22,000. Repairs fall between $450 and $1,800 depending on the scope.

Composition Shingle Replacement

Most Alum Rock homes built in the 1950s through 1970s have original or second-layer composition shingles. When we strip a roof, we inspect the decking underneath. On ranch homes near the foothills, we regularly find raccoon-damaged plywood around attic vents and eaves. We replace that decking before it becomes a leak, and we show you photos of everything we find before we button it up.

Decking, Underlayment, and Drip Edge

Decking is the plywood or OSB layer under your shingles. Underlayment is the waterproof barrier on top of the decking. Drip edge is the metal flashing at the roof perimeter that keeps water from wicking back under the shingles. On Alum Rock ranch homes with built-in gutters, the drip edge detail at the roof-to-wall intersection is where most cheap bids fall apart. We scope it explicitly, in writing.

Trusted Brands We Service in Alum Rock

We install materials from GAF, CertainTeed, Owens Corning, IKO, Atlas, Tamko, and Boral. What that means for you in Alum Rock: we’re not tied to one manufacturer’s product line, so you get a straight comparison of cost, warranty, and storm rating. GAF architectural shingles are the most common choice on east side ranch homes for their balance of price and wind performance. Atlas and Tamko provide strong mid-range options. Boral tile roofing is the premium pick for homeowners who want a 50-year roof that handles foothill heat without cracking. We stock common materials locally and coordinate specialty orders with short lead times so a roof doesn’t sit open longer than necessary.

Common Roofing Company Problems We See in Alum Rock Homes

• Built-in gutter failures on low-pitch ranch roofs. The 1950s-70s homes around Alum Rock Avenue and McKee Road often have integral gutters built into the roof edge. When shingles are layered over them incorrectly, water backs up at the roof-to-wall intersection and leaks into the fascia within the first winter rainy season.
• Raccoon damage around attic vents and eaves. On the east side near the foothills, raccoons tear through shingles and vent screens to get into attics. The result is exposed decking that rots within two seasons. We inspect those areas on every estimate, not just when the homeowner reports a leak.
• Granule loss from intense summer sun. Alum Rock gets baked in the summer. Asphalt shingles lose granules prematurely, which exposes the asphalt layer to UV and leads to cracking. If you see granules in your gutters at the end of July, your roof is aging faster than its calendar year.
• Valley leaks from aging roof penetrations. The brief winter rainy season concentrates water in valleys and around pipe boots, vents, and skylights. Homes with patched layers over original penetrations leak first. A proper valley detail with ice and water shield is the fix we scope every time.

Pricing for Roofing Company in Alum Rock, CA

We Also Serve Cities Near Alum Rock

Brennan Roofing Co San Jose serves Alum Rock and the surrounding communities across the South Bay. If you’re in San Jose, Sunnyvale, Redwood City, or Union City, our Roofing Company team covers those areas with the same written-price standard. For Alum Rock-specific details on this page, see our Roofing Company in Alum Rock coverage. Dispatch is coordinated from our Bay Area office, and crews serve each city locally.

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