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
GAF Roofing in Houston, TX | Brennan Roofing Co Houston
We provide independent GAF roofing installation, repair, and replacement across Houston, TX. We’re not manufacturer-authorized, and we don’t pretend to be. What we are is a crew that has torn off and reinstalled enough GAF shingle lines in this city to know exactly how Houston’s heat, humidity, and hurricane season break them down. If you need GAF shingle replacement, leak repair, flashing work, or a full re-roof, call (940) 461-8481 for a written estimate before any work starts.
Why Houston Residents Choose Us for GAF Service
We work on GAF sales & service roofs every week, from Timberline HDZ architectural shingles to older Royal Sovereign 3-tabs that are reaching the end of their service life. Travis Oakley, our owner, learned roofing at Los Angeles Trade-Technical College and spent years putting roofs on California bungalows and commercial strips before bringing that training to Houston. What that means for you is simple: he reads a roof straight. No invented hail damage on shingles that are fine. No soft-pedaling a deck that’s rotted through and needs to come off.
We stock OEM GAF shingles and accessories locally so turnaround through our Roof Repair in Houston doesn’t depend on a slow manufacturer shipment. Color matching on partial repairs, correct nail patterns for wind uplift resistance, and honest recommendations on repair versus replacement are all part of how we work. Every technician who steps onto your roof is background-checked and in uniform. You know who’s up there. Every job gets a written price before work begins, and every repair and installation is backed by our 365-Day Done Right Promise in writing.
Styles & brands we work with
Common GAF Roofing Problems We Solve in Houston
GAF makes a solid shingle, but Houston conditions test them harder than most places in the country. Here are the failure modes we see most often on GAF roofs around Houston, and what drives them.
- Wind uplift tears along nail lines on older Royal Sovereign 3-tabs. Hurricane gusts and strong thunderstorm winds grab the shingle tabs and pull them up where they were nailed too high or with fewer than six nails per shingle. This is common on 70s and 80s tract homes across Houston. Once the seal strip breaks, water gets under the shingle and the tear spreads.
- Hail cracking on Timberline HDZ granule surfaces. Houston hailstorms are not a myth. When hail hits, it fractures the ceramic granule layer on the shingle. You’ll see dark spots where granules are gone and the asphalt mat is exposed. Left alone, that mat dries out, cracks, and lets moisture into the decking below.
- Heat-induced thermal splitting at shingle seams. South-facing slopes in Houston bake through 100-degree summers year after year. The asphalt expands and contracts, and the seams between shingles eventually split. It’s slow damage that most homeowners don’t catch until a storm pushes water through.
- Flashing and valley sealant failure around chimneys and skylights. Torrential rain in Houston finds every weak seal. On older GAF architectural installations, the sealant at flashing points dries out, pulls away, and gives water a direct path into the attic. These leaks are rarely a shingle problem. They’re a flashing problem.
- Decking rot from long-term moisture intrusion. Houston’s humidity means water that gets under shingles doesn’t dry quickly. A small leak can sit and fester for years. By the time we tear off the shingles, the OSB decking underneath is often spongy and needs replacement before new GAF shingles go down.
GAF Service in Houston: What Local Conditions Mean for Your Equipment
After Hurricane Harvey, insurance adjusters in Houston changed how they underwrite roofs. In Meyerland and Braeswood, the heaviest damage concentrated in neighborhoods with older, non-impact-rated shingles. Now, many insurers require full GAF Class 4 impact-rated shingle replacement before they’ll renew a policy. That’s a requirement rarely seen in drier Texas cities like Austin or San Antonio, where hail is less frequent and hurricanes don’t hit. For Houston homeowners with GAF roofs that predate Class 4 standards, this isn’t optional. If your roof is aging, the insurance question is coming, and the fix is a full replacement with impact-rated GAF shingles. Travis and our crew have done full tear-offs and re-roofs from Meyerland to the Energy Corridor. We certify the Class 4 impact rating when the job is done so you can take that paperwork to your adjuster and get your renewal.
GAF Models & Products We Service in Houston
We install and repair the full GAF residential line that Houston homes actually carry. That includes Timberline HDZ, Timberline UHDZ, Royal Sovereign, and Liberty SBS for flat or low-slope applications. Our parts approach is straightforward: we use OEM GAF shingles and accessories whenever possible, matched to your existing roof color and profile. Matching a partial repair to an older roof takes a careful eye, and we’d rather hunt down the correct bundle than slap on a close-enough color. For repair-only jobs, if the remaining life span on your GAF roof drops below five years or the decking is compromised, we’ll tell you plainly that replacement is the smarter spend. We don’t upsell damage that isn’t there, and we don’t patch what should come off.
See the difference
Before
After
Before
After
Before
AfterGAF Service Pricing in Houston
GAF shingle replacement and leak repair costs in Houston run from roughly $375 to $950 for targeted repairs, while full GAF roof replacements typically land between $8,500 and $18,000 depending on square footage, tear-off disposal, decking condition, and shingle grade. A Timberline HDZ replacement on a standard 1,800 to 2,400 square foot Houston tract home usually falls in the middle of that range. Impact-rated Class 4 shingles add cost, but they also satisfy the insurance requirements that are becoming standard in Meyerland and Braeswood.
Every estimate is free and includes a written line-item price for materials and labor before any work begins. The number on that paper does not move at the door. Call (940) 461-8481 to schedule your free estimate.
Serving Houston, TX - Our Local Coverage Area
We’re our Roofing Company in Houston, based in the 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 – GAF Roofing in Houston
Yes, we match OEM GAF Timberline HDZ colors to your existing roof profile. We check the original color code and bring samples up on the roof before ordering, because sun fading in Houston makes a 10-year-old section look different from a factory-fresh bundle. We do everything we can to make the repair blend instead of reading as a patch. Call (940) 461-8481 and we’ll come check the color in person before you spend anything.
Yes. Timberline UHDZ carries a Class 4 impact rating when installed to GAF specifications, which means the shingle is engineered to withstand larger hail impacts without granule loss or fracturing. Standard Timberline HDZ does not carry that same impact rating out of the box. For Houston homeowners dealing with insurance requirements after Harvey, UHDZ often ends up being the shingle that satisfies an adjuster’s mandate.
Because many of those homes were built in the 70s and 80s with original Royal Sovereign 3-tabs that were never rated for hurricane uplift or large hail. Harvey’s wind-driven rain found every weak nail line and dry seal, and the damage was too widespread for patchwork. Insurers saw the pattern and now commonly require full Class 4 impact-rated replacement before renewal. We’ve done this exact replacement in Meyerland, and we certify the rating when it’s done.
Yes, Liberty SBS is a modified bitumen system that holds up better than standard built-up roofing under Houston’s sun. The SBS rubberized layer flexes with thermal expansion instead of cracking, which matters on flat and low-slope roofs that absorb direct heat all afternoon. We install it on flat sections of Houston homes and commercial strips regularly. For an exact read on your roof geometry, call (940) 461-8481 and we’ll come look.
Usually not. Leaks around chimneys in Houston are almost always a flashing failure, not shingle failure. The shingles around the chimney could be perfectly intact while the sealant has dried out and pulled away from the brick. We replace the flashing, re-seat it, and reseal it correctly. If we find shingle damage while we’re up there, we’ll show you photos and give you a written price before touching anything else.
Service Areas Near Houston
We serve Houston and the surrounding communities, including Pearland, Baytown, Spring, Friendswood, and Rosenberg. If you’re in Pearland or Baytown, you can reach our GAF service directly from those pages. For the full Houston service area, call and we’ll tell you when we can get out.
Book Your GAF Service in Houston Today
A roof either keeps water out or it doesn’t. If your GAF roof is leaking, losing granules, or showing wind damage, call (940) 461-8481 for a free written estimate. We’ll come out, read the roof straight, and put the price on paper before any work starts.
Written by Travis Oakley, Owner at Brennan Roofing Co Houston, serving Houston since bringing his trade foundation from California to Texas Gulf Coast conditions.