Kitchen remodeling
Bathroom remodeling
Home additions & ADU
Roofing
Windows & doors
Driveway & pavers
FenceFree written scope consultation - allowances, timeline, and change-order rules on paper before a single trade is scheduled
GAF Construction in Fontana, CA | Milpitas Construction
We provide independent GAF roofing installation, repair, and storm damage service across Fontana. We’re not authorized or endorsed by GAF; we’re a full-scope general contractor that has worked on their roofing systems in this city long enough to know exactly how they fail here. The one thing that makes our GAF work different in Fontana is this: we plan every repair and replacement around the Cajon Pass wind funnel and the age of the original underlayment beneath those shingles. Call (877) 752-4194 for a free estimate. Ken Stafford leads our crew, and he’s built his reputation on roofing that holds through Santa Ana events, not just through the walkthrough.
Why Fontana Residents Choose Us for GAF Service
Most roofing crews in the Inland Empire can nail a shingle. Fewer can tell you why a 2003 Timberline HDZ roof on a Fontana tract home is losing granules on the south slope while the north slope looks untouched. We work on GAF systems week in and week out across Fontana, from the newer north-side tracts in 92336 and 92337 to the older postwar stock in 92335, and we also handle GAF repair in Bloomington. That repetition matters: we know the underlayment specs on 1990s – 2000s builds, the wind patterns that hit rake edges hardest, and which repairs actually hold versus which ones just get re-done after the next Santa Ana event. We use GAF-manufactured shingles and underlayments for direct replacements, and for flashings, vents, and fasteners we specify quality aftermarket components that meet or exceed GAF’s published installation requirements. Ken grew up near Milpitas BART when that whole corridor was mostly warehouses and family shops; he left for the Inland Empire with two decades of ground-up residential work behind him, and he still checks every ridge cap himself. Build it right the first time – the Bay Area doesn’t give you a free pass on shortcuts.
Styles & brands we work with
Common GAF Construction Problems We Solve in Fontana
- Wind uplift at rake and eave edges on Timberline shingles. Santa Ana winds funneling through the Cajon Pass routinely peel shingles at the roof edges, especially on 1990s and 2000s tract homes where the original 6-nail pattern backed out from aged underlayment. We see this most in 92336 and 92337.
- Granule loss and thermal cracking on south-facing Timberline HDZ slopes. Fontana’s intense summer sun and high UV cycles bake the granules off the asphalt mat. South-facing roofs here degrade years faster than north-facing slopes of the same age. We see this on nearly every 15 – 30-year-old GAF roof in the city.
- Adhesive failure and seam separation on GAF Liberty SBS self-adhered membrane. Used on low-slope patio covers and room additions across Fontana, Liberty membrane peels at the lap seams when water ponds after winter rain. It needs proper slope and clean-surface prep to re-adhere.
- Fastener back-out and shingle ridging on original GAF shingles. Many 1990s – 2000s Fontana tract homes had GAF shingles installed over thin felt with inadequate attic ventilation. The fasteners back out over time, and the shingles ridge and cup in the heat. We repair isolated sections or recommend replacement based on the percentage of slope affected.
- Wind-torn patio covers and carports with GAF low-slope roofing. The Cajon Pass wind events don’t just hit the house roof. Patio covers and detached garages with GAF membrane or shingles take it hard too, and we repair those regularly.
GAF Service in Fontana: What Local Conditions Mean for Your Equipment
Here’s the thing most roofing companies miss, and it’s why we take a different approach to GAF in Rialto and Fontana alike. The city’s newer north-side tracts were built mostly between the 1990s and 2000s with GAF shingle roofs over what is now 15-to-30-year-old underlayment. That’s the exact age window where the underlayment starts to fail from the underside while the shingles still look serviceable on top. Wind-driven shingle loss exposes that degraded underlayment, and suddenly a small repair reveals a much bigger decision. The Cajon Pass wind funnel puts Fontana homes under aerodynamic load that coastal contractors simply don’t plan for. We saw this firsthand last spring on a home in the 9200 block of Calabash Avenue, near the 92336 tract area. A Santa Ana wind event tore a 4-foot section of Timberline HDZ shingles off the rake edge over the garage. We found the original 1990s underlayment had degraded, the 6-nail pattern had backed out along the entire windward slope, and that slope needed shingle replacement, a 6-nail high-wind nailing pattern with new starter strip, and re-sealed ridge. No full replacement that time. The winds were the cause, but the underlying age was the reason. That’s the conversation Fontana homeowners need to have, and we have it with them before the next storm hits.
GAF Models & Products We Service in Fontana
We work on the full GAF lineup that appears on Fontana roofs and commercial buildings: Timberline HDZ and Timberline Natural Shadow shingles (the most common on tract homes), EverGuard TPO for commercial and flat low-slope applications, and Liberty SBS Self-Adhered membrane for patio covers, room additions, and other low-slope residential work. Our approach to parts is practical: we use GAF-manufactured shingles and underlayments for direct replacements because performance matters, but for flashings, vents, and standard fasteners we specify aftermarket components that meet or exceed GAF’s published installation requirements. We stock common accessories locally so turnaround for most Fontana repairs doesn’t wait on a special order. If the roof is under 15 years old and damage is isolated, we repair. If granule loss or wind damage covers more than 30% of the slope, we recommend full replacement. We also handle GAF sales & service for replacement and installation projects, from shingle to TPO membrane to Liberty self-adhered systems.
See the difference
Before
After
Before
After
Before
AfterGAF Service Pricing in Fontana
What you’ll pay for GAF work in Fontana depends on the system, the slope, the age of the underlayment, and how much wind damage has accumulated. These are our standard market ranges for Fontana projects:
| Service | Price Range |
|---|---|
| Roof Repair | $400 – $1,800 |
| Roof Replacement & Installation | $8,000 – $20,000 |
| Tile Roof Repair | $600 – $2,500 |
| Emergency & Storm Damage | $400 – $1,800 |
Our free estimate includes a slope-by-slope inspection of the existing GAF system, the condition of the underlayment where accessible, and a written line-item quote. We don’t give a number over the phone without seeing the roof; too many Fontana roofs look fine from the street and are failing underneath. Call (877) 752-4194 to schedule a walkthrough.
Serving Fontana, CA — Our Local Coverage Area
We’re based in the Fontana area and know this community well, and we also serve customers needing GAF in Glen Avon. Use the map below to see our service coverage — if you’re nearby, we can almost certainly help.
FAQs – GAF Construction in Fontana
It depends on the percentage of the slope affected and the condition of the underlayment. If granule loss covers less than 30% of the slope and the shingles still lie flat, we can repair the affected areas with matching GAF Timberline shingles. If the south slope has widespread granule loss and the shingles are curling or cracking from heat cycling, replacement is usually the better long-term call. Fontana’s south-facing slopes take the brunt of the UV, so we often see one slope fail while the others look fine. Call (877) 752-4194 and we’ll inspect the specific slope and tell you straight what it needs.
Cajon Pass winds expose GAF shingles to concentrated wind uplift at the rake and eave edges, which is where most storm-related shingle loss starts. GAF’s high-wind installation details call for a 6-nail nailing pattern and specific starter strip and sealant requirements. We install to those high-wind specs because Fontana’s wind exposure is real, not theoretical. A standard 4-nail pattern that works in, say, coastal Huntington Beach, will come apart at the rake edges in 92336 during a Santa Ana event. Call (877) 752-4194 for an exact quote on high-wind installation for your roof.
Yes, we can. Liberty membrane separates at the laps when water ponds on a low-slope patio cover, especially after winter rain. The repair involves cleaning the seam, re-adhering with GAF-compatible adhesive, and addressing the ponding so it doesn’t happen again. If the membrane is too degraded, we’ll quote a replacement with proper slope correction. Many Fontana patio covers have this exact issue. Call (877) 752-4194 for a repair estimate.
For a standard 1,500-square-foot single-story Fontana home with Timberline shingles, replacement typically runs $8,000 to $20,000 depending on tear-off, underlayment replacement, and whether any decking needs repair. Homes in Fontana’s 1990s – 2000s tracts often need full underlayment replacement and ridge vent upgrades at the same time, which adds to the total. Call (877) 752-4194 for a written quote based on your specific roof.
Yes, we handle emergency storm damage repairs on GAF roofs across Fontana after Santa Ana wind events. We prioritize tarping and temporary weather protection to prevent further damage, then complete the permanent repair once conditions are safe. We’ve handled dozens of these calls in 92336 and 92337, where the wind funnel hits hardest, as well as jobs for GAF in Pedley. Call (877) 752-4194 the moment you see shingles missing or a leak after a windstorm.
Service Areas Near Fontana
We serve Fontana and the surrounding Inland Empire communities, including Fontana service area coverage for the full 92335, 92336, 92337, and 92331 ZIP codes. For GAF work on coastal and Orange County homes, we also run GAF service in Huntington Beach and GAF service in Santa Ana. If you’re in Silver Lakes, Piñon Hills, or the surrounding high-desert communities, we handle GAF roofing there too.
Book Your GAF Service in Fontana Today
If your GAF roof is showing signs of wind damage, granule loss, or seam separation, get it looked at before the next Santa Ana event. We provide free estimates across Fontana’s ZIP codes, and we’ll give you an honest repair-vs-replace answer on the spot. Call (877) 752-4194 to schedule your estimate. We know Fontana’s winds, and we know GAF roofs.
Written by Ken Stafford, Owner at Milpitas Construction, serving Fontana since we first set up shop here.