GAF Construction in Pomona, CA

GAF Construction in Pomona, CA | Barrett & Sons Construction

We’re an independent GAF service provider in Pomona, not a manufacturer-authorized contractor, and we work on Timberline, EverGuard, and discontinued GAF lines every week across the 91766 through 91768 ZIP codes. What separates our GAF work here is simple: we know the Pomona fault runs under residential streets, we know Santa Ana gusts hit 50-60 mph in the fall, and we build every roof to handle both at once. Call (877) 610-1318 for a free estimate on GAF roof replacement, repair, or tile roofing, and Tom Barrett will walk you through what your roof actually needs.

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Why Pomona Residents Choose Us for GAF Service

Tom Barrett grew up in the San Fernando Valley watching crews pour foundations with his dad on weekends, then learned framing at Los Angeles Trade-Technical College before putting in enough field hours to know the job never lies. For over 27 years, Barrett & Sons Construction has been the kind of company where the owner’s name is on the truck and his sons run the crews. When a Pomona homeowner calls us about a GAF roof, they get Tom’s direct line, not a call center.

We stock GAF genuine ridge caps, starter strips, and sealants locally so turnaround on repairs doesn’t stall while parts ship from a warehouse in another state. When a discontinued GAF shingle line needs a patch, we source verified color-match aftermarket shingles and say plainly when a 15-year-old Timberline roof has too many brittle spots to patch responsibly. Every price change arrives as a written change order before work starts, every eligible job pulls permits, and every roof carries our 90-Day Done Right Promise. We’ll do it right the first time, or we’ll come back and make it right.

Common GAF Construction Problems We Solve in Pomona

• Wind-lift on Timberline HDZ leading edges. Pomona sits at the eastern pinch point of the San Gabriel Valley where Santa Ana winds funnel through at 50-60 mph. We regularly see GAF shingles lifted along the rake edges of homes with original 3-tab GAF roofing where the sealant strip has degraded over two or three decades. The fix is usually a nailing-pattern correction plus new starter strips, but it has to be done before the next wind event.
• Thermal cracking and granule loss on south-facing slopes. Summer temperatures in Pomona exceed 105°F regularly, and the UV exposure on south-facing Timberline slopes causes the asphalt to oxidize faster than north-facing slopes on the same roof. Homeowners off Garey Avenue and Reservoir Street call us about granules in the gutters every July. That’s exactly what GAF shingles look like when thermal cycling has run its course.
• Brittle shingle breakage during spot repairs. 1990s-era GAF Timberline roofs in Pomona’s postwar tract housing have spent decades absorbing valley heat and cool nights. When we attempt a spot repair, the shingles often crack under hand pressure. We tell homeowners the truth at that point: the repair-versus-replace line has been crossed, and patching brittle shingles just postpones a full replacement by a season or two.
• Flashing failures at roof-to-wall transitions on 1940s-60s stucco homes. Pomona’s original stucco-over-wood-frame construction shows moisture intrusion and stucco delamination after decades of Santa Ana-driven rain hitting the east and north walls. The step flashing behind that stucco is usually the same age as the roof, and once it opens, water tracks into the framing. We remove the damaged stucco at the transition, replace the flashing, and re-lath and re-stucco before laying the new GAF course.
• Seam openings on EverGuard PVC and TPO low-slope roofs along Holt Avenue. The mid-century commercial and industrial buildings along the Route 66 corridor have flat and low-slope roofs that thermal-cycle hard in Pomona’s 105°F summers. EverGuard membrane seams that were welded a decade ago open up under that repeated expansion, and the fix requires hot-air welding with GAF-compatible membrane, not a bucket of coating.

GAF Service in Pomona: What Local Conditions Mean for Your Equipment

Pomona is the only major city in the eastern San Gabriel Valley where the Pomona fault line actually crosses under residential neighborhoods, not just open land or commercial zones. When we replace a GAF roof on homes in the Phillips Ranch area or along Towne Avenue, we almost always find the original plywood decking has shifted or developed hairline cracks from seismic movement. Decking that moves underneath shingles shortens the roof’s life no matter how good the shingle is. So we strengthen the eaves and rakes, replace cracked panels with new CDX plywood, and only then lay the new GAF Timberline system. A contractor from Claremont or Ontario would not typically anticipate that, because their fault exposure is different. We start every GAF roof replacement in Pomona assuming the decking needs structural work. The permit inspector signs off on it, and the roof actually lasts.

Our crew re-roofed a 1958 GAF Timberline American Harvest roof on a home in the Lincoln Park neighborhood, where the original shingles had gone brittle from decades of valley heat and the fascia boards showed stucco delamination from Santa Ana-driven rain. We removed two layers, found the plywood decking had hairline cracks from the Pomona fault’s constant movement, and installed new CDX plywood plus a GAF StormGuard ice-and-water shield before laying the new Timberline HDZ shingles with six nails per shingle. That roof will outlast the original by a decade, and the homeowner has our written 90-Day Done Right Promise to back it up.

GAF Models & Products We Service in Pomona

We work across the full GAF product line in Pomona: Timberline HDZ, Timberline Natural Shadow, Timberline American Harvest, and EverGuard PVC/TPO membranes for the flat and low-slope commercial roofs along Holt Avenue. For active product lines, we use GAF genuine ridge caps, starter strips, and sealants, because the proprietary materials match the original installation’s wind rating and thermal performance. For discontinued shingle lines, we source verified color-match aftermarket shingles when a homeowner needs a patch and isn’t ready for a full replacement. We’re an independent service provider, not a GAF-authorized contractor, but our crews install GAF systems on Pomona’s postwar tract homes and historic Lincoln Park properties every month. We stock the common accessories locally so a repair on a Timberline HDZ roof doesn’t wait on a freight shipment.

GAF Service Pricing in Pomona

FAQs - GAF Construction in Pomona

Service Areas Near Pomona

We serve Pomona and the surrounding eastern San Gabriel Valley communities, including Claremont, La Verne, Diamond Bar, Chino, and Montclair. For GAF sales & service across the broader region, our crews cover Los Angeles County and the Inland Empire. See our Pomona service area page for ZIP code detail. We also provide GAF service in Escondido and GAF service in Torrance for homeowners in those areas.

Book Your GAF Service in Pomona Today

Call (877) 610-1318 and Tom Barrett will answer or return your call personally. We schedule free GAF roof assessments across Pomona’s 91766, 91767, 91768, and 91797 ZIP codes, and we can often get a crew out the same week. Ask about our $40 off any repair over $200 and the permanent 10% Senior & Veteran discount.

Written by Tom Barrett, Owner at Barrett & Sons Construction, serving Pomona since 1998.