Roofing Company in Alum Rock, CA | Brennan Roofing

Roofing Company in Alum Rock - Written Price, Workmanship Warranty

Free roof inspection with photos, then an itemized written price before anything is ordered. Installed by our own licensed crews and backed by a workmanship warranty.

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Free roof inspection with deck photos before we talk money - GAF and Owens Corning certified installation

Your new roof for as low as $159/month*on approved credit; ask for current terms
Styles & brands we work with

Architectural shingles
Architectural shingles
Metal roofing
Metal roofing
Tile roofing
Tile roofing
GAF
GAF
Owens Corning
Owens Corning
Flat & low-slope
Flat & low-slope

Before & after – our own jobs

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Recent Project
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Full Restoration
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Complete Upgrade

Fast, Reliable Roofing Company Across Alum Rock

Most roof replacements in Alum Rock start with a simple question: what will it actually cost, and what happens when the old roof comes off and the framing underneath isn’t what we expected? The answer for this neighborhood is specific. Because most homes here were built between 1945 and 1965 on un-reinforced slab foundations, a straightforward reroof in Alum Rock routinely becomes a seismic retrofit of the roof structure. That means shear walls, tie-downs, and modern framing that contractors working on flatland San Jose homes rarely have to scope. We know that before we start, because we’ve opened up enough Alum Rock roofs to know what’s underneath. Call (361) 320-9467 and we’ll walk the roof with you, put the real scope on paper, and hand you a written price before any work begins.

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Why Brennan Roofing Is Alum Rock’s Preferred Roofing Company

We run our Roofing Company crews under the Garrison Standard, and that matters in a neighborhood like this. Alum Rock homes have real history in their framing, and you need a crew that treats that history seriously. Every technician who steps onto an Alum Rock roof is background-checked, uniformed, and trained to look past the shingles to the structure holding them. Travis Oakley leads our crews with a simple rule: the price goes on paper before any work starts, and it does not move at the door. That’s the Garrison Code, and it’s how we’ve earned the trust of homeowners across the East Foothills.

We answer the phone with a live person around the clock. No voicemail, no callback queue. When you call about a roof in Alum Rock, you talk to someone who can schedule a Roof Inspection in Alum Rock and get you answers the same day. Homeowners here have told us the same thing again and again: they’ve been burned by roofers who no-show or pad the price once the shingles come off. We don’t work that way. We write the number down first, we stick to it, and if we find something unexpected inside the roof, we stop and show you before we spend another dollar.

Commercial Roofing in Alum Rock

Commercial Roofing in Alum Rock means working on low-slope and flat assemblies that take a beating from the Diablo Range sun. The commercial buildings along Alum Rock Avenue and up toward the foothills run hot, and the roof systems on those structures need materials and detailing that hold up to 95°F summers and winter storm cycles. We scope every commercial job the same way we scope a home: inspect the deck, map the drainage, and put a written price in your hand before any tear-off begins.

Low-Slope Recovery and Membrane Work

Most commercial roofs in Alum Rock are built as low-slope assemblies, and many are at the point where a recovery makes more sense than a full tear-off. We evaluate the existing membrane, the insulation condition, and the drainage pattern. If the deck is sound, we can install a new membrane system over the old one and save you the cost and disruption of a full tear-off. If the deck has gone soft, we tell you that too, with the exact square footage and the exact cost to fix it.

What Commercial Work Costs Here

Commercial reroofing in Alum Rock typically lands between $8 and $14 per square foot for a full replacement on a standard low-slope building, with recovery work running lower when the substrate is intact. Stucco parapets, rooftop HVAC curbs, and the seismic detailing the city requires can move that number. We write it all down before we start. No surprises at the door.

Metal Roof Installation in Alum Rock

Metal Roof Installation in Alum Rock is one of the better investments a homeowner here can make, and it’s not close. The wildfire interface in the Diablo Range hills makes Class A fire-rated assemblies a real requirement, not a brochure line. Standing seam metal and stone-coated steel both carry Class A ratings, and they shed embers instead of catching them. In a neighborhood where summer heat cycles put asphalt shingles through extreme thermal stress, metal stays put and reflects more of that sun than any shingle can.

Standing Seam for the East Foothills

A standing seam metal roof on an Alum Rock home runs from roughly $14 to $22 per square foot installed, depending on the roof’s complexity and how much deck work the existing structure needs. The payback comes in two forms: the roof outlasts anything asphalt can do, and the fire rating is built into the material itself. We install metal over a properly vented assembly with the right underlayment, so the roof breathes and the deck doesn’t cook.

Stone-Coated Steel on Low-Pitch Homes

For the 1950s low-pitch gable and hip roofs that dominate Alum Rock’s tract neighborhoods, stone-coated steel gives you the look of shingle or tile with the fire rating and longevity of metal. It runs $11 to $18 per square foot installed in this area. The material weighs less than concrete tile, which matters on homes with 2×4 rafters and skip sheathing that were never designed to carry heavy tile. We’ll tell you plainly if your framing can handle the load, and if it can’t, we’ll show you what needs to change before we install anything.

Trusted Brands We Service in Alum Rock

We install materials from GAF, CertainTeed, Owens Corning, Atlas, and Tamko, and we keep our recommendations honest. For Alum Rock’s heat and fire risk, we lean on Atlas for their Class A architectural shingles that stand up to intense UV without getting brittle. For homeowners who want the best asphalt on the market, GAF’s Timberline line is a workhorse that holds its own through atmospheric river seasons. When you call us about your roof in Alum Rock, we’ll walk you through the real differences between these lines so you choose with confidence, not because a brochure told you to.

Common Roofing Company Problems We See in Alum Rock Homes

  • Skip sheathing and 2×4 rafters that were never meant to carry modern loads. Most Alum Rock homes from the postwar tract era were framed light. Reroofing over that structure without adding shear walls or tie-downs leaves the home vulnerable to the next seismic event, and it fails current code once the permit is pulled. We scope the structure before we touch a shingle.
  • Hairline ridge and hip cracks from the 1989 Loma Prieta earthquake. Many Alum Rock roofs developed cracks at the ridge and hip intersections that only show up as leaks during the first big winter storm. Local roofers know to check the chimney flashing and valley metal first, because the shaking loosens those fasteners more than the field shingles. We find these before they leak.
  • Rotting decking near the eaves from minimal attic ventilation. The postwar homes here were built with almost no attic ventilation by modern standards, and 30-lb felt over skip sheathing doesn’t breathe. That traps moisture, and the deck rots from the inside out. When we open the roof, we often find the first three feet of decking near the eaves needs replacement. We price that as an allowance, not a surprise.
  • Non-Class A assemblies in the wildfire interface. The Diablo Range hills that border Alum Rock put this neighborhood squarely in the wildfire threat zone. Homes with standard vents and non-fire-rated shingles are one ember away from real trouble. We install Class A fire-rated assemblies with ember-resistant vents, because the code is moving that way and because the risk is already here.

Pricing for Roofing Company in Alum Rock, CA

An asphalt shingle tear-off and replacement on a standard Alum Rock tract home runs $7 to $11 per square foot installed, which puts a typical 1,800-square-foot roof at roughly $12,600 to $19,800. Tile roofs run $12 to $18 per square foot, metal runs $11 to $22, and flat or low-slope commercial work lands between $8 and $14. What moves the number in Alum Rock specifically is the structure underneath: if your home needs shear walls, tie-downs, or deck replacement before the new roof goes on, that work gets its own line item and its own price. We write everything down before we start, and if we find damage once the roof is open, we stop and show you the exact cost to fix it before we spend anything. Call (361) 320-9467 to schedule a free estimate, and you’ll have a real number on paper the same visit.

We Also Serve Cities Near Alum Rock

Our crews serve Alum Rock and the surrounding Bay Area, including San Jose, San Francisco, Los Angeles, and San Diego. If your home sits in one of those cities, the same Garrison Standard applies: written price first, background-checked uniformed techs on the roof, and a full-year written guarantee on every job.

Serving Alum Rock, CA - Our Local Coverage Area

We’re based in the Alum Rock 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 Roofing Company in Alum Rock

Why Alum Rock Chooses Brennan Roofing

We set the standard for roofing company in Alum Rock.

No Change-Order Surprises

The written quote you sign is the price you pay. Anything we find mid-job gets priced and approved by you in writing before we touch it.

Licensed & Insured

Fully certified technicians who meet all local and state licensing requirements.

Upfront Pricing

No hidden fees, no surprises. You approve the price before any work begins.

Guaranteed Work

Every repair and installation is backed by our workmanship warranty and satisfaction guarantee.

How It Works in Alum Rock

Getting your roofing company handled is simple and fast.

1

Call or Request a Free Estimate

Tell us about your roofing company needs and we provide an upfront, transparent quote - no obligation, no hidden fees.

2

Licensed Technician Dispatched

A background-checked, certified technician arrives in Alum Rock - typically within 30-60 minutes, with parts stocked on the truck.

3

Problem Solved, Guaranteed

We complete the job to your full satisfaction, backed by our warranty and 100% satisfaction guarantee.

What happens when you call

  1. 1
    A real person answersNo phone trees - talk to a local roofing company pro.
  2. 2
    You get an upfront price rangeHonest numbers before anyone is dispatched. No surprises.
  3. 3
    We come out and measureLicensed & insured, at a time that suits you - the visit and the quote are both free.
  4. 4
    You get the price in writingLine-itemed, yours to keep, and nothing starts until you say go.

What Alum Rock Customers Say

Trusted by homeowners across Alum Rock and surrounding areas.

★★★★★

"Ridge vent added and the attic is cooler. Fair price compared to the other two quotes."

Vernon C. · Verified customer
★★★★★

"Neat, quiet, and disciplined crew. Magnet swept the yard after."

Tonya R. · Verified customer
★★★★★

"Replaced the underlayment and drip edge as well as shingles. Many roofers skip that. Everything was explained in writing."

Barry F. · Verified customer

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(361) 320-9467

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