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GAF Construction in Pomona, CA | Polaris Contractors
We provide independent GAF roofing installation and repair across Pomona, from the pre-1960s bungalows in 91767 to the newer infill builds on the west and south edges, and we also serve nearby communities with GAF in La Verne. What makes our GAF work different here is that we read the house before we read the shingle: Pomona’s clay-heavy soil and Santa Ana wind funnel mean a roof failure is rarely just a roof failure. If you need GAF service in Pomona, call (855) 473-6535 for a free estimate.
Our crew works to GAF’s published installation specs as an independent contractor. We are not authorized, sponsored, or warranty-endorsed by GAF. We stock GAF-manufactured shingles, underlayments, and accessory venting locally for fast Pomona turnaround, and we’ll tell you plainly when a repair makes sense versus when the deck and drainage are working against a new roof.
Why Pomona Residents Choose Us for GAF Service
Rick Sondermann grew up in Corona del Mar and spent nearly three decades building and renovating homes along the Southern California coast before bringing that experience to Pomona’s older grid. He learned construction at Saddleback College in Mission Viejo, where hands-on coursework in building technology and estimating gave him a foundation he still leans on when sequencing a full re-roof with foundation and flashing work. His father was a finish carpenter who believed in doing things once and doing them right, and that philosophy stuck. Rick’s phrase on the job site is simple: “Do it right the first time – the second time always costs more.”
Pomona homeowners choose us for GAF work because we know how these roofing systems actually behave under local conditions. We’ve pulled wind-lifted Timberline HDZ shingles off exposed slopes in the 91766 flats after Santa Ana events. We’ve traced recurring leaks on 1920s bungalows to step flashing failures over settled corners, not to the GAF shingle field itself. When you call us, you’re not getting a crew that shows up with a ladder and a caulk gun. You’re getting a GAF sales & service team that sequences roofing, flashing, decking, and drainage so the work holds up.
One team, full scope. If the re-roof exposes a foundation issue, we flag it. If the fascia is rotted, we replace it. From the roof down to the pavers, your project is managed start to finish. That’s the difference between patching a symptom and fixing the house.
Styles & brands we work with
Common GAF Construction Problems We Solve in Pomona
- Santa Ana wind lifting and ridge-cap loss. Wind-driven debris during Santa Ana events abrades and lifts field shingles and ridge caps on exposed Pomona slopes, especially where the original install used fewer fasteners than GAF’s current spec. We re-nail, replace, and re-seal the windward slope.
- Heat-cycled ridge vents and dried sealant beads. Hot, dry Pomona summers dry out and crack the plastic ridge-vent components and sealant beads on older GAF installs, opening attic venting to wind-blown rain. We replace with GAF Cobra rigid or roll ridge-vent products matched to your existing system.
- Clay-soil movement shearing sealant strips. Clay-heavy soils under much of Pomona’s older grid expand and contract with seasonal moisture, flexing shallow foundations and the roof deck above them. That movement shears GAF shingle sealant strips, producing creeping leaks near valleys and chimneys without an obvious surface tear.
- Improperly flashed transitions over old dormers and additions. Original plaster-walled additions and older dormers in Pomona’s Craftsman and Spanish-Revival homes often have step flashing that was never installed to modern spec. Water tracks behind the underlayment, so a “roof leak” traces to the flashing, not the GAF shingles.
- Deck flex over settled corners. Pre-1960s framing with shallow foundations settles unevenly, flexing the roof deck and working shingles loose at the edges. We replace compromised sheathing before re-roofing so the new GAF system isn’t fighting a moving house.
GAF Service in Pomona: What Local Conditions Mean for Your Roof
Pomona’s older grid sits on expansive clay that swells with winter rain and shrinks through summer drought, and that cycle is the quiet culprit behind a lot of what homeowners call shingle failure. On pre-1960s homes in 91766 and 91767, we routinely check roof-deck and flashing movement against foundation and drainage issues before we quote a GAF re-roof. Here’s why: when the clay under a shallow foundation expands after a wet season, the corners of the house can lift or drop by fractions of an inch. That movement flexes the roof deck, which shears the sealant strips on GAF shingles and opens hairline gaps at flashings. You see a water stain on the ceiling near a valley or chimney, assume the shingles failed, and call for a patch. But the patch won’t hold if the deck is still flexing. We’ve replaced localized GAF shingle fields on Pomona bungalows where the real issue was a settled corner pulling the step flashing away from the wall. The roof work matters, but so does the drainage correction and foundation check that keeps the next leak from appearing six months later.
Our crew saw this firsthand on a 1920s bungalow in the 91766 flats. After a Santa Ana wind event stripped ridge caps and lifted field shingles on the windward slope of an older GAF architectural install, we found the deck flexing over a settled corner. We replaced the compromised sheathing and step flashing, then re-roofed the slope with GAF Timberline HDZ and a matched ridge vent. We also flagged the foundation and drainage issue to the homeowner so the new roof wasn’t working against a moving house. That’s the Pomona-specific lens—and the same one we apply to our Los Serranos GAF service—that we bring to every GAF job: what looks like a shingle failure is often a house-movement failure.
GAF Models & Products We Service in Pomona
We install and repair GAF Timberline HDZ and UHDZ architectural shingles, GAF Liberty self-adhered low-slope roll roofing, and GAF Cobra rigid and roll ridge-vent products. On a Pomona re-roof, we match the shingle line to the existing roof where possible, and we pair it with the underlayment and accessory venting the home’s age and exposure actually call for. Our parts approach is simple: we use GAF-manufactured shingles, underlayments, and accessory venting matched to the existing system whenever possible. We fall back to quality aftermarket components only when the specified GAF part is unavailable or a better-vented assembly is called for. If your Pomona roof was originally GAF but the venting was under-specified for Santa Ana wind exposure, we’ll tell you and quote the upgrade rather than quietly reusing the same weak points. Built to the brand’s specification, installed to ours.
See the difference
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AfterGAF Service Pricing in Pomona
Here’s what Pomona homeowners can expect to budget for GAF-related roofing work, based on current market rates across the Inland Empire:
| Service | Price Range |
|---|---|
| Roof Repair | $400 – $1800 |
| Roof Replacement & Installation | $8000 – $20000 |
| Metal Roof Installation | $15000 – $40000 |
| Tile Roof Repair | $600 – $2500 |
What drives the cost on a Pomona GAF re-roof is deck condition, flashing scope, and whether the house needs drainage or foundation-related corrections before the shingles go on. A straightforward tear-off on a newer tract home is different from a 1920s bungalow with plank decking, settled corners, and stucco transitions that need step flashing rebuilt. Your free estimate includes a written line-item quote, no change orders on approved scope, and permits pulled and inspections passed. Call (855) 473-6535 to schedule yours.
Serving Pomona, CA — Our Local Coverage Area
We’re based in the Pomona area and know this community well, with GAF service in Claremont also available. Use the map below to see our service coverage — if you’re nearby, we can almost certainly help.
FAQs – GAF Construction in Pomona
Usually not. On Pomona’s clay-heavy soils, the more common culprit is deck movement and flashing failure driven by foundation settling. The shingles may look fine, but the sealant strips have sheared and water is tracking behind the underlayment at valleys or chimneys. We inspect the deck and flashings along with the shingle field before recommending any repair. Call (855) 473-6535 for a diagnosis.
Wind events themselves don’t void a GAF warranty unless the install was off-spec or the damage predates the event, but Santa Ana winds absolutely damage roofs installed with fewer fasteners than GAF requires. Lifted field shingles and stripped ridge caps are the two most common failures we see after a wind event. If you’ve lost shingles, call (855) 473-6535 and we’ll assess the windward slope before the next rain.
We do, but only after checking the deck for flex, rot, and settlement first. Original plank decking on 1920s and 1930s Pomona homes often has gaps and movement that need sheathing repair or overlay before new shingles go down. We’ll quote the deck work alongside the GAF Timberline HDZ re-roof so you’re not paying for a new roof on a moving substrate.
We look at deck condition, flashing integrity, shingle age, and whether the failure is localized or a symptom of broader movement. If the deck is sound and the leak is traced to one flashing or a small shingle field, we repair honestly. If the deck is flexing, the underlayment is compromised, or the shingle sealant strips have sheared across multiple slopes, we’ll tell you plainly that patching will just push the next leak to another valley. Call (855) 473-6535 and we’ll walk you through what we find.
No. We’re an independent full-scope General Contractor in Pomona. We install and repair GAF roofing systems to GAF’s published installation specifications, but we are not authorized, sponsored, or warranty-endorsed by GAF. That independence means we can be honest about when a repair makes sense and when it doesn’t, and we can pair your GAF re-roof with drainage, flashing, and structural corrections other contractors would bounce to a second company.
Service Areas Near Pomona
Our Pomona service area covers 91767, 91768, 91769, and 91797. We also serve nearby communities including Pomona service area neighbors like Montclair, Claremont, La Verne, San Dimas, and Diamond Bar. For GAF work in Lakeland Village, see GAF service in Lakeland Village. For Montclair, see GAF service in Montclair.
Book Your GAF Service in Pomona Today
If your Pomona roof has wind damage, climbing leaks, or you’re planning a re-roof before the next Santa Ana season, call us. We’ll inspect the deck, flashings, drainage, and shingle field, then hand you a written quote that includes everything. Call (855) 473-6535 to schedule your free estimate.
Written by Rick Sondermann, Owner at Polaris Contractors, serving Pomona since day one.