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
CertainTeed Roof Inspection in San Francisco: What to Know First
An independent CertainTeed roof inspection in San Francisco typically takes 45 to 90 minutes and ends with a written report showing exactly what’s failing, what can wait, and what each repair will cost. We inspect and repair CertainTeed shingle, tile, and flat-roof systems throughout the city, and we give you the price on paper before any work starts. That’s the whole point: you’re not calling for a sales pitch, you’re calling to find out what your roof actually needs.
This page is for homeowners in San Francisco who own a CertainTeed roof and want an honest inspection from a crew that knows the product line. We’re Brennan Roofing Co San Francisco, an independently owned local roofing company operating under the Garrison Standard. Call (831) 318-8819 and a live person answers. Every inspection includes a written estimate you can keep, whether you hire us or not.
How CertainTeed Products Fail – and How We Fix Them
CertainTeed makes solid roofing materials, but every product line has its weak points. After years of working San Francisco roofs, here’s what we see most often, by product family:
- Presidential Shake and Grand Manor: wind-lift at the butt edge. These heavyweight laminated shingles are common on single-family homes in the Richmond and Sunset districts. The self-seal adhesive doesn’t always bond in San Francisco’s cool, fog-heavy summers, because the shingles rarely get hot enough to activate the sealant strip fully. We find lifted tabs that look fine from the ground but flap in a stiff ocean wind. The fix is usually simple: hand-sealing the affected tabs with a roofing-grade adhesive that’s CertainTeed-compatible, at a fraction of the cost of replacement.
- Landmark and Landmark Pro: granule loss concentrated at the eaves. Granule loss is normal as shingles age, but on Landmark lines we often see it concentrated near the drip edge, not spread across the roof. That’s a drainage issue, not a manufacturing defect. San Francisco’s rainy winters push water to the eaves before it can shed, and the constant moisture breaks down the granule-to-asphalt bond faster there. We’ll flag it during inspection and usually recommend re-routing or upsizing the gutters before they damage the shingles further.
- Carriage House and Belmont: nail pop-throughs at the exposure line. These designer shingles have deeper shadow bands and thicker profiles, and we periodically find fasteners backing out and pushing through the shingle surface on older installations. It happens when the installer’s nail pattern missed the reinforced nailing strip. On a San Francisco roof, the seasonal expansion from damp winters to warm (but rarely hot) summers is enough to work those misaligned nails upward over time. We replace the popped shingle and seat new fasteners in the proper zone.
- Symphony and XT 30 in steep-slope sections: missing hip and ridge cap pieces. On Victorian and Edwardian homes with complex roof geometry, the hip and ridge cap is the first component to fail. Wind eddies around turrets and dormers eventually pry the cap shingles loose. We’ve fixed cap failures on enough Noe Valley and Dolores Heights Victorians to know the pattern: it’s rarely the field shingles, it’s the caps. Inspection includes a close look at every hip line, and we replace missing pieces with the matching CertainTeed cap for the installation’s specific series.
- Flintlastic and other CertainTeed low-slope membranes: seam separation at parapet flashings. Flat and low-slope roofs on Sunset and Outer Richmond flats often use CertainTeed’s Flintlastic self-adhered base and cap sheets. The membranes hold up well, but where the field membrane meets a parapet wall or scupper, the flashing can peel after years of UV exposure and thermal movement. Water gets in at the top edge of the flashing, runs behind the membrane, and shows up as a ceiling stain two rooms away from the source. We inspect the full perimeter, not just the visible field, because that’s where these leaks start.
One note: we are an independent CertainTeed service provider. We’re not authorized by or affiliated with CertainTeed, and our inspections are our own honest read of your roof, not a manufacturer evaluation.
Styles & brands we work with






Our CertainTeed Roof Inspection Process
Here’s how an inspection works when you call Brennan Roofing Co San Francisco for CertainTeed work:
- 1
Call and talk to a person. You reach a live dispatcher, any hour, who schedules your inspection for a real time window. Our technician shows up in uniform, on time, in that window.
- 2
Site walk and interior check first. Before the technician gets on the ladder, we ask about what you’ve noticed inside: ceiling stains, peeling paint, damp smells in odd corners. That’s a map to where the roof is letting water in, and it guides everything that follows.
- 3
Full roof walk and condition mapping. We inspect every plane, slope change, penetration, and edge. For CertainTeed roofs specifically, we’re checking sealant bond at the tabs, granule retention at the eaves, fastener placement, cap condition, and flashing integrity at every transition. We photograph every defect.
- 4
Component-level diagnosis. This is where Travis Oakley’s read comes in. We tell you what’s failing today, what has two seasons left, and what a less careful contractor might upsell. We name the specific CertainTeed series on your roof and what its known failure patterns are for a San Francisco climate. The report is written in plain English, not roofing jargon.
- 5
Written price before any work starts. If repairs are needed, we put the number on paper. That price doesn’t move at the door. You decide if and when the work happens. No obligation, no follow-up phone pressure.
- 6
Repair, test, and guarantee. If you hire us, we do the work with the correct CertainTeed-matching materials, water-test the repair where practical, and leave your property clean. Every repair carries the 365-Day Done Right Promise: a written guarantee for one full year, with a free return visit if anything we touched fails within that period.
That’s The Garrison Code: show up, inspect honestly, put the price in writing, stand behind the work. Every job, no exceptions.
See the difference
Before
After
Before
After
Before
AfterWhat CertainTeed Roof Inspection Costs in San Francisco
Our CertainTeed roof inspection runs $225 to $375 for most single-family homes in San Francisco, depending on roof size, slope, and access difficulty. A three-story Victorian with two steep gables takes longer than a single-story Marina flat with a low-slope roof, and the price reflects the technician’s time and safety work, not a markup on your zip code.
Typical repair scenarios after an inspection:
- Re-sealing lifted tabs on Presidential Shake or Grand Manor: $180 to $420
- Replacing a few damaged Landmark or XT 30 shingles: $220 to $520
- Repairing a Flintlastic flashing separation at a parapet wall: $350 to $800
- Replacing missing hip or ridge caps on a steep Victorian: $280 to $650
What moves the price: roof height and pitch, whether we need safety anchors or roof brackets, and how much matching CertainTeed material is needed. If your roof is at the end of its service life, we’ll tell you that plainly and give you a replacement number instead of patching a failing system. Call (831) 318-8819 to schedule your inspection, and you’ll have the exact price in writing before any work begins.
Why San Francisco Homeowners Call Brennan Roofing Co San Francisco for CertainTeed Work
Every technician we send is background-checked, uniformed, and trained to inspect CertainTeed products specifically, not just “type of shingle, year of install.” We know what a Landmark roof should look like after ten years of salt air, fog, and winter rain. We know where the weak points are before we get on the ladder. And when a CertainTeed product isn’t available or isn’t the right call for your situation, we install and service GAF and Owens Corning materials too, so we’ll tell you what your roof needs rather than push the brand you already have.
Most importantly, we put every estimate in writing before any work starts, and we guarantee every repair for a full year. A good roof shouldn’t need to be talked about, it should just hold. That’s Travis Oakley’s line, and he means exactly what it says. You’ll get a number you can trust, work you can verify, and a company that answers the phone.
FAQs
No. A roof inspection by an independent contractor like Brennan Roofing Co San Francisco does not void a CertainTeed manufacturer’s warranty. The CertainTeed warranty covers manufacturing defects in the materials themselves. Repairs made by a state-licensed contractor using appropriate materials do not void that material warranty. We recommend keeping our written inspection report and repair documentation, which can support a warranty claim if a material defect is the root cause. Call (831) 318-8819 and we’ll walk you through what your specific warranty covers.
Most CertainTeed roof inspections in San Francisco run between $225 and $375 for a single-family home, depending on roof size and access. The price is set before we arrive, and you get a written report with photos and a line-item estimate for any repairs. If you hire us for those repairs, we’ll usually credit the inspection cost toward the work. That’s the fair way to do it.
We prefer to match what’s on your roof. For active CertainTeed lines like Landmark, Presidential Shake, and Carriage House, we source matching CertainTeed shingles in the correct color and profile. For discontinued CertainTeed colors or series, we’ll find the closest visual match from a compatible manufacturer and show you a sample before we install anything. The goal is a repair that blends, not a patch that looks like a scar on your roof.
For small repairs like lifted shingle tabs, missing caps, or a flashing separation, our technician carries common CertainTeed-matching materials and can often complete the repair during the same visit. That’s a bonus, not a sales trick: if it’s a two-season issue and you’d rather wait, we’ll hand you the written estimate and respect the pause. You decide the timeline.
Look for granules collecting in your gutters, visible lifting at shingle edges, water stains inside near chimneys or walls, and loose cap pieces on ridges. Any one of these deserves an inspection. Our technicians will tell you straight: if the repairs over the next three years will cost more than 30 to 40 percent of a new roof, replacement is usually the smarter money. We’ll give you both numbers and let you decide with a clear head.
Questions about your CertainTeed roof? Call (831) 318-8819 for a free estimate, and a live person will answer.
Written by Travis Oakley, Owner, Brennan Roofing Co at Brennan Roofing Co San Francisco, serving San Francisco and nearby areas.