Free roof inspection with deck photos before we talk money - GAF and Owens Corning certified installation
Fast, Reliable Roof Inspection Across San Bruno
A roof inspection in San Bruno typically costs between $150 and $300 for a standard residential home, and most inspections take 45 to 90 minutes on site. We schedule San Bruno inspections within the week, and our written report includes photos, measurements, and a plain-English breakdown of what needs attention now versus what can wait. Call (361) 320-9467 to get an inspection on the books.
San Bruno roofs don’t fail the way roofs fail in Sunnyvale or Redwood City. The marine layer sits over this city for days at a time, and that changes what actually goes wrong up there. Crews that only know sun damage miss the real problems. We don’t, because we’ve inspected hundreds of roofs in Crestmoor, Rollingwood, and the post-war tracts off San Bruno Avenue, where the failure points are consistent: corroded fasteners, rotted north-facing decking, and valleys packed with oak and eucalyptus debris that hold moisture against the underlayment.
Why Brennan Roofing Is San Bruno’s Preferred Roof Inspection Company
Brennan Roofing is an independently owned member of the Garrison Partners family, founded in 2000, and every San Bruno inspection is run to the Garrison Standard. That means the price goes on paper before we touch the ladder, the technician who shows up is background-checked and in uniform, and the findings are documented in a report you can actually read. Travis Oakley leads our work, and he holds every inspection to the same bar: if it’s not documented, it didn’t happen.
San Bruno homeowners call us because the inspection they get is built around this city’s specific conditions. We know the low-pitch composition roofs on the 1940s and 1950s tracts near San Bruno Avenue wear differently than the custom homes with complex ridgelines up in Crestmoor. We know which north-facing slopes hold fog moisture longest. We know what a valley packed with eucalyptus litter does to decking. That local knowledge is what makes a Brennan Roofing inspection worth more than a generic one-page checklist from a crew that drove in from somewhere flatter and sunnier.
Every inspection is backed by the 365-Day Done Right Promise in writing. If we miss something that a closer look would have caught, we come back and make it right at no charge for a full year. That’s the Garrison Code, and it applies the same in San Bruno as everywhere else we work.
Commercial Roof Inspection in San Bruno
Commercial Roof Inspection in San Bruno covers the low-slope and flat roof systems on storefronts, office buildings, and multi-unit properties, where standing water and fog-belt condensation create rot and membrane failure that steep residential roofs don’t face. A commercial inspection in San Bruno typically runs $400 to $900 depending on square footage and roof access, and includes a documented assessment of membrane condition, flashing, drainage, and fastener corrosion on rooftop equipment curbs.
When Building Owners Request This
Commercial property owners in San Bruno most often request an inspection after a winter storm, before a sale or refinance, or when a tenant reports a ceiling stain. Fog-belt moisture means the underside of low-slope membranes stays damp far longer than property owners expect, so we look at venting and drainage as closely as the membrane itself.
What the Report Covers
Our commercial reports include photos of every penetration, curb, and drain, plus a prioritized list with cost ranges so an owner can budget repairs before they become tenant problems. We flag corroded fasteners and brackets around rooftop equipment, which fail early in San Bruno’s salt-influenced marine air and are rarely caught by routine maintenance checks.
Roof Inspection Services in San Bruno
Roof Inspection Services in San Bruno address the full range of what’s above your ceiling: shingles and shakes, underlayment, flashing, drip edge, valleys, gutters, penetrations, and attic ventilation. A standard residential inspection runs $150 to $300, and if the roof is steep or has multiple levels, we quote the added access cost before we start. The written report you receive is specific to your roof, not a template with boxes checked.
Pre-Purchase and Real Estate Inspections
When a home is in escrow in San Bruno, the buyer needs a roof report that can stand up to negotiation. We document remaining useful life, current condition, and repair costs with numbers attached, so both sides are working from the same facts. Realtors in San Bruno rely on these reports because they’re specific, dated, and photo-documented.

Post-Storm and Moss-Damage Inspections
After a winter storm or a long stretch of fog, we’re often the first call to check whether the roof absorbed water or just got wet. San Bruno’s fog belt means moss damage is a year-round concern, not a seasonal one, and our inspections distinguish between surface moss that can be removed and the deeper rot that happens when moss held moisture against underlayment for too long.

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.
Trusted Brands We Service in San Bruno
We inspect and work on roofs built with GAF, CertainTeed, Owens Corning, and IKO materials, so we know how each system ages in San Bruno’s fog and marine air. That matters when the question is whether a roof has five years left or fifteen. We maintain strong relationships with local Bay Area suppliers, which means replacement materials for San Bruno homes arrive quickly when an inspection turns up damage that can’t wait. You won’t hear us recommend a brand just because it’s what’s on the truck; you’ll hear why a specific material holds up better on a north-facing Crestmoor slope than another would.
Common Roof Inspection Problems We See in San Bruno Homes
- Fog-belt rot on north-facing decking and shakes: San Bruno’s marine layer keeps shaded roof surfaces damp for days, especially in wooded hillside lots. By the time the shingles look worn, the decking underneath may already be soft and need replacement before new material goes down.
- Corroded flashing, drip edge, and fasteners: Salt-influenced marine air eats standard-galvanized and aluminum hardware faster here than in inland Peninsula cities. An inspection that only checks granule loss will miss flashing that’s about to separate and let water behind the roof.
- Debris-clogged valleys and gutters: Oak and eucalyptus trees in neighborhoods like Crestmoor drop leaves and branches that pack into valleys and gutters, holding moisture against the underlayment. This is a fog-plus-debris problem that flat, open Peninsula cities don’t have, and it accelerates decking rot in San Bruno specifically.
- Inadequate attic ventilation showing up as interior moisture: San Bruno’s damp air finds its way into attics, and when ventilation is undersized, condensation drips onto insulation and drywall. We inspect intake and exhaust venting on every job, because a roof that’s perfectly intact on top can still be wet inside.
Pricing for Roof Inspection in San Bruno, CA
A residential roof inspection in San Bruno runs $150 to $300 for most homes under 2,500 square feet. Larger homes, steep pitches, and multi-level roofs with difficult access add $50 to $150. Commercial roof inspections range from $400 to $900 depending on square footage, roof type, and access. The price does not move at the door; the quote you get on the phone is the price on the written estimate, and nothing starts until you have that number on paper. Call (361) 320-9467 for an exact quote on your roof, and we’ll schedule a time that fits your calendar.
We Also Serve Cities Near San Bruno
Brennan Roofing serves San Bruno and the surrounding Peninsula communities, including Millbrae, South San Francisco, Pacifica, and Brisbane. If you’re in a neighboring city and need a Roof Inspection, the same Garrison Standard applies: written price first, background-checked uniformed technicians, and a full-year guarantee in writing. We coordinate scheduling from our San Francisco Bay Area office, and crews serve San Bruno and nearby cities locally.
Serving San Bruno, CA - Our Local Coverage Area
We’re based in the San Bruno 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 San Bruno
Every two years is the right interval for most San Bruno homes, and annually if the roof sits on a north-facing slope or under heavy tree cover. Fog-belt moisture accelerates moss growth and fastener corrosion, so a two-year inspection catches problems before the decking rots. Call (361) 320-9467 to schedule an inspection and get a written report with photos and findings.
San Bruno’s coastal fog keeps roof surfaces damp for days at a time, and shaded hillside lots with oak and eucalyptus canopy mean those surfaces never fully dry. Moss needs persistent moisture to establish, and San Bruno’s microclimate provides it in a way that sunnier Peninsula cities like San Mateo or Redwood City simply don’t. The fix usually starts with debris clearing and may include zinc or copper strips to slow regrowth.
Yes. San Bruno’s marine air carries enough salt and moisture to corrode standard-galvanized fasteners and aluminum flashing years earlier than inland Peninsula homes would see. An inspection that checks only shingle condition will miss the real failure point, which is why our reports document hardware condition separately from surface wear.
A Brennan Roofing inspection in San Bruno covers the roof surface, flashing, drip edge, valleys, gutters, penetrations, attic ventilation, and visible decking from the attic side. You get a written report with photos, measurements, remaining useful life estimates, and cost ranges for any recommended work. Every inspection is backed by the 365-Day Done Right Promise in writing.
No. A roof spec’d for a dry, flat Peninsula city will fail early in San Bruno’s fog belt: standard-galvanized fasteners corrode, aluminum drip edge lets go, and moisture-resistant underlayment gets skipped to save money. The cheap spec costs more within a decade because the decking and flashing have to be redone. We specify hot-dip galvanized or stainless fasteners, synthetic underlayment, and marine-grade drip edge on San Bruno jobs, and the price difference is documented up front so you can choose with the numbers in front of you. Call (361) 320-9467 for a free inspection estimate and a written price before any work starts.
Written by Travis Oakley, Owner at Brennan Roofing, serving San Bruno and the Peninsula.






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