Metal roofing
Architectural shingles
Tile roofing
GAF
Owens Corning
Flat & low-slopeFree roof inspection with deck photos before we talk money - GAF and Owens Corning certified installation
Fast, Reliable Roof Inspection Across Alum Rock
A roof inspection in Alum Rock typically costs $190 – $390 depending on roof size and complexity, and most inspections take 60 to 90 minutes with a written report in hand the same day. We know the ranch homes, the foothill wind patterns, and the trouble spots that repeat block after block between McKee Road and Alum Rock Park. If you’re buying, selling, or just tired of wondering what’s happening up there, call Brennan Roofing Co San Jose at (669) 238-2101 and we’ll get a background-checked, uniformed technician on your roof for Roof Repair - Alum Rock within days, not weeks.
We’re not a faceless call center dispatching whoever’s closest. Travis Oakley runs this crew. When you call, a live person answers, and the technician who climbs your ladder works to one written standard: The Garrison Standard. Price on paper before any work starts. A full-year written guarantee. No exceptions, no door-knock add-ons.
Why Brennan Roofing Co San Jose Is Alum Rock’s Preferred Roof Inspection Company
Alum Rock homeowners keep our number because we treat a roof inspection as forensic work, not a two-minute walk-around with a clipboard. The neighborhood’s housing stock is specific: modest single-story ranch and stucco homes from the 1950s through the 1970s, with a handful of older craftsman bungalows mixed in. Those low-pitched roofs hide problems a generic inspector misses. We don’t miss them because we’ve been opening up Alum Rock roofs long enough to know exactly where they hide.
Our reputation in Alum Rock is built on showing up inside the promised window, in uniform, and putting findings in plain English. No jargon, no fear-selling. You get photos, measurements, and a line-item list of what’s wrong, what’s wearing, and what can wait. If the roof is fine, we tell you it’s fine. That’s not a standard industry answer, but it’s ours.
Every inspection is backed by The Garrison Code: background-checked technicians, written pricing before work begins, and the 365-Day Done Right Promise. If we repair something and it fails within a year, we come back free. That’s in writing.
Styles & brands we work with






Roof Inspection Services in Alum Rock
Roof Inspection Services across Alum Rock start with a full visual walk of the roof surface, but the real value comes from what happens after: lifting ridge vents, checking flashing transitions, and tracing water stains to their actual source. A complete inspection on an Alum Rock ranch home takes a technician up onto the decking, into the attic if accessible, and along every penetration: vents, pipes, skylights, and the built-in gutter lines that cause so many problems here.
Expect to pay $190 – $290 for a standard single-story ranch inspection up to about 1,800 square feet. Larger homes or complex roofs with multiple additions run $290 – $390. You get a written report with photos and a prioritized repair list, and the price of the inspection is credited toward any repair work you approve.
What Gets Checked
Flashing around the roof-to-wall intersections gets opened and examined, not just glanced at. We pull ridge vent caps to look for the raccoon chew marks common on the east side near the foothills. We check decking for soft spots, the drip edge for rust-through, and the underlayment for dry rot. On ranch homes with carport additions, the tie-in seam is always on the list, because that’s where 8 out of 10 hidden water stains originate in this neighborhood.

When Alum Rock Homeowners Book One
Most inspections happen before a home sale, after a storm season, or when a homeowner notices ceiling stains and wants a straight answer about whether it’s roof-related. Some book annually, especially on composition shingle roofs pushing 20 years. Others call after a hailstorm, which we’ll get to below.

What happens when you call
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A real person answersNo phone trees - you reach a local pro.
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You get an upfront price rangeHonest numbers before anyone is dispatched.
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A background-checked tech heads outLicensed & insured, dispatched right away.
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You approve before work beginsNothing starts until you say go.
Hail Damage Roof in Alum Rock
Hail Damage Roof inspections in Alum Rock are less about softball-sized dents and more about the subtle bruising that shortens a shingle’s life by years without ever looking dramatic from the ground. Hail strikes the granule surface, loosens it, and creates soft spots where water eventually works through. On Alum Rock’s 1950s-70s composition shingle roofs, that bruising often shows up first on the west-facing slope that catches the afternoon sun.
A hail-specific inspection runs $220 – $340 in Alum Rock and includes granular loss assessment, impact-site photos, and documentation formatted for insurance claims. If you’re filing a claim, you want a technician who can mark the strike zones and write a report adjusters actually accept. We do that regularly for Alum Rock homeowners.
Signs We Look For
Bruised shingles feel soft under thumb pressure, like a rotten apple spot. Granules collect in gutters right after a storm. Flashing gets dented where hail struck at an angle. On built-in gutter ranch homes, hail can also crack the old tar seals along the gutter line, which lets water behind the fascia board weeks before you’d ever see a ceiling stain.
Insurance Documentation
If hail damage is confirmed, we document everything with date-stamped photos and a written summary you can hand to your adjuster. We don’t advocate for a claim unless the damage is real. The point is an accurate assessment, not a sales push.
Trusted Brands We Service in Alum Rock
We inspect and repair roofs built with every major material, including GAF, CertainTeed, and Owens Corning product lines. Alum Rock’s older ranch homes often carry layered composition shingles from manufacturers that no longer produce the original color, so we spec matches from current lines and document the layering clearly. We give you real options explained plainly, whether that’s a full reroof with GAF Timberline HDZ, a CertainTeed Landmark replacement, or a targeted repair that keeps your Owens Corning roof serviceable for five more years. The choice stays yours. The written price comes before any work.
See the difference
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After
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After
Before
AfterCommon Roof Inspection Problems We See in Alum Rock Homes
- Built-in gutter failures on low-pitch ranch roofs. These gutters are integrated into the roofline, and when the tar seal or flashing fails, water runs straight into the fascia and wall cavities. We see this on nearly every 1950s-70s ranch we inspect in Alum Rock.
- Carport addition tie-ins that were never re-flashed. Many Alum Rock homes added carports or enclosed patios in the 1980s. The original flashing at the roof-to-wall seam was often reused or bent back, which starts leaking within a few wet winters.
- Raccoon damage at vents and eaves on the east side near the foothills. The animals claw through soffit material and chew around attic vents, opening roof penetrations to water and pests. This shows up far more in Alum Rock’s foothill streets than in neighborhoods just a few miles west.
- Premature granule loss and cracking from intense summer sun exposure. Alum Rock’s hot, dry summers bake asphalt shingles. After 10 to 15 years, the granules loosen and the shingle surface begins to check like old leather. A roof that looks fine in March can look brittle by September.
Pricing for Roof Inspection in Alum Rock, CA
Here’s what you can expect to pay in Alum Rock, with no need to call just to get a ballpark. A standard single-story ranch inspection runs $190 – $290. A two-story or complex roof with additions runs $290 – $390. Hail-specific inspections run $220 – $340. If we find damage and you approve repairs, the inspection fee is credited back. Every inspection includes a written report with photos, a prioritized repair list, and a line-item quote for anything that needs work. The quote goes on paper before any work starts, and the number does not move at the door.
Call (669) 238-2101 to schedule a free estimate on any roof inspection in Alum Rock. The estimate itself costs you nothing and comes with a straight answer about what we found.
We Also Serve Cities Near Alum Rock
Brennan Roofing Co San Jose provides Roof Inspection services throughout the eastern San Jose foothills and the broader South Bay. If you’re in Alum Rock, we’re already close. Crews also serve San Jose, Sunnyvale, Redwood City, and Union City with the same written-price standard and the same 365-day guarantee.
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 Roof Inspection in Alum Rock
They are part of every inspection we do in Alum Rock, and we check them because built-in gutters are the most common hidden leak source on the neighborhood’s 1950s-70s ranch homes. Our technicians examine the gutter seams, the tar seal, and the metal flashing where the gutter meets the roof deck. If a built-in gutter fails, water gets into the fascia and wall before you ever see a ceiling stain. Call (669) 238-2101 and we’ll put it on the written report.
Yes, because raccoon damage at attic vents and soffits opens the roof envelope to water even when the shingles above are in fine shape. On the east side of Alum Rock near the foothills, we regularly find chewed vents and clawed soffit material that lets rain run straight into the attic. It’s a safety and water-intrusion issue, and any buyer’s inspector will flag it. We can quote the repair at the same visit.
They do, which is why our Roof Inspection protocol treats low-slope ranch roofs differently. On a steep roof, water sheds fast and flashing failures show up as obvious stains. On a low-pitch Alum Rock roof, water lingers, moves sideways, and works into seams that look fine from a standing position. We walk those roofs more slowly, check the low-slope sections’ underlayment, and examine built-in gutters and roof-to-wall transitions with extra care.
It changes what we expect to find. Alum Rock’s hot, dry summers cause premature granule loss and surface cracking on asphalt shingles, especially on west-facing slopes. During an inspection we check for heat-related brittleness that will fail in the next rainy season, not just current leaks. A roof can pass a visual check in October and still be one winter away from problems, and we document that distinction clearly.
Yes, and we see layered roofs all over Alum Rock, where older composition shingles were covered with a second layer instead of being stripped. A second layer hides decking rot and failed starter strips, and it shortens the life of the new shingles because they can’t seat properly. We identify layering during the inspection and tell you honestly whether it’s holding up or needs to come off before any repair or reroof.
Call Brennan Roofing Co San Jose at (669) 238-2101 to schedule your Roof Inspection in Alum Rock. You’ll talk to a live person, get a written price before any work starts, and have a straight answer about what’s happening on your roof. The estimate is free.
Written by Travis Oakley, Owner at Brennan Roofing Co San Jose, serving Alum Rock under The Garrison Standard.