







Free written scope consultation - allowances, timeline, and change-order rules on paper before a single trade is scheduled
GAF Construction in San Bernardino, CA | Bradford Remodeling
We provide independent GAF roof installation, repair, and storm damage service across San Bernardino. We’re not a GAF-authorized contractor, and we don’t answer to the manufacturer. We answer to you. The one thing that sets our GAF work apart here is straightforward: we detail every roof for the Cajon Pass wind and inland heat that San Bernardino actually throws at it. Call (903) 568-7222 for a free estimate.
Why San Bernardino Residents Choose Us for GAF Service
Curtis Lane grew up watching his grandfather re-frame a back bedroom that never quite stayed square, and that early lesson stuck: get the structure right before you dress it up. Our crews bring that same discipline to GAF roofing in San Bernardino. We know the Timberline lines inside out because we’ve torn off enough of them to see exactly where they fail here. Our technicians are background-checked, uniformed, and they show up when we say they will. A live person answers our phone 24/7, not a queue. Every job starts with a written price from GAF sales & service, and every completed roof carries the 365-Day Done Right Promise: if it fails within a year, we come back and fix it at no charge.
Styles & brands we work with







Common GAF Construction Problems We Solve in San Bernardino
- Curling and cupping on south- and west-facing slopes. San Bernardino summer afternoons push past 100°F, then drop 40 degrees overnight. That thermal cycling makes Timberline shingles curl and cup along the hottest planes, often years before the warranty runs out. We replace the affected slopes and re-detail the ridge so the repair holds.
- Granule loss on older Royal Sovereign 3-tab roofs. The Inland Empire UV exposure bakes the factory asphalt coating off Royal Sovereign shingles until granules shed into gutters and valleys. By the time you see bare spots, the shingle is done. We inspect the full roof before recommending repair or replacement.
- Ridge caps blown off by Santa Ana winds. Winds funneling through the Cajon Pass routinely rip ridge caps and lifted tabs off GAF Timberline roofs that were sealed without the manufacturer’s required cap and starter details. We run Seal-A-Ridge caps the full ridge length and re-nail sheathing where it has pulled.
- Seal-down strip failure after high-wind events. GAF Timberline HDZ seal-down strips can lift during a Santa Ana, and on the hot side of the ridge the shingles often re-adhere into misaligned courses that leak later. We check for shifted courses after every wind season.
- Leaks from skipped starter strips and ridge systems. DIY or storm-chaser installs that skip GAF’s Pro-Start starter strip and ridge cap system leave exposed nail heads and blown-off ridge caps after one windy season. We re-detail the perimeter and ridge correctly.
GAF Service in San Bernardino: What Local Conditions Mean for Your Equipment
San Bernardino sits in a high-wind zone where Santa Ana winds funnel through the Cajon Pass and routinely rip ridge caps and lifted tabs off GAF Timberline roofs that were sealed down without the manufacturer’s required cap and starter details. That is not a generic California problem. It’s specific to this corridor. On a 1970s single-story in the Del Rosa area, we tore off a 19-year-old Timberline roof that had curled and lost granules on every south-facing slope and replaced it with GAF Timberline HDZ over new synthetic underlayment and Pro-Start starter. The homeowner had already lost two ridge caps in a Santa Ana wind event, so we ran Seal-A-Ridge caps the full length and re-nailed the sheathing where it had pulled. The roof has held through two windy seasons since. That’s the standard we build to here.
GAF Models & Products We Service in San Bernardino
We work on GAF Timberline HDZ architectural shingles, GAF Timberline UHDZ (formerly American Harvest), GAF Royal Sovereign 3-tab, and GAF Liberty SBS self-adhered low-slope roofing. For parts, we install genuine GAF Timberline shingles, Pro-Start starter strips, and Seal-A-Ridge caps. We only substitute an aftermarket underlayment or flashing when it genuinely outperforms the stock GAF accessory for a specific San Bernardino condition, like the high-wind detailing we discussed. We keep common Timberline parts in local stock so most repairs in San Bernardino don’t wait on a distributor.
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AfterGAF Service Pricing in San Bernardino

Here is what GAF roofing work costs in San Bernardino. These are written price ranges, not ballpark guesses. The final number depends on roof size, pitch, deck condition, and the specific detailing your roof needs.
| Service | Price Range |
|---|---|
| Roof Replacement | $8,000 – $20,000 |
| Roof Repair | $400 – $1,800 |
| Metal Roof Installation | $15,000 – $40,000 |
| Tile Roof Repair | $600 – $2,500 |
| Gutters & Accessories | $400 – $1,800 |
Every estimate is free and written. The price you see is the price you pay, no moves at the door. Call (903) 568-7222 to schedule yours.
Serving San Bernardino, CA - Our Local Coverage Area
We’re based in the San Bernardino 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 Construction in San Bernardino
Timberline HDZ holds up reasonably well if the roof is detailed correctly for inland conditions, but south- and west-facing planes in San Bernardino take heavy thermal cycling and UV load. We see curling and granule loss sooner than the warranty period on roofs that skip proper underlayment and ventilation. The detailing matters as much as the shingle. Call (903) 568-7222 and we’ll inspect what your roof is actually doing.
Yes, if the failure is isolated and the roof is under about 15 years old. If granule loss, curling, or deck softness spans multiple planes, a full replacement is the right call. We will show you photos and a written scope either way, and the estimate is free.
A correctly detailed GAF roof with the full Pro-Start starter strip and Seal-A-Ridge cap system will hold. A roof that skipped those details will likely lose ridge caps again, because San Bernardino’s Santa Ana winds exploit those shortcuts. We install the full system, every time. Call (903) 568-7222 for an exact quote.
We install both Timberline UHDZ and Royal Sovereign, plus Timberline HDZ and Liberty SBS for low-slope sections. Our recommendation for San Bernardino is usually Timberline HDZ or UHDZ for the strong seal-down performance, but it depends on your roof geometry and budget.
GAF’s manufacturer warranty applies to the materials, not the installation. Since we’re an independent contractor, not GAF-authorized, installation workmanship is covered by our own 365-Day Done Right Promise: if the work fails within a year, we return and correct it at no charge. We put that in writing before any work starts.
Service Areas Near San Bernardino
We serve San Bernardino and the surrounding communities, including Fontana, Moreno Valley, Rialto, Highland, and Redlands. For roofing work in those specific areas, see our GAF service in Fontana and GAF service in Moreno Valley pages. Our full coverage is listed on the San Bernardino service area page.
Book Your GAF Service in San Bernardino Today
If your GAF roof needs repair, storm damage work, or Kitchen Remodeling - San Bernardino or a full replacement in San Bernardino, call (903) 568-7222. We’ll send a crew to inspect, put a written price in your hand, and stand behind the work for a full year. Straight number, real scope, no surprises at the punch list.
Written by Curtis Lane, Owner at Bradford Remodeling, our General Contractor in San Bernardino since 2004.











