Architectural shingles
Metal roofing
Tile roofing
GAF
Owens Corning
Flat & low-slopeFree roof inspection with deck photos before we talk money - GAF and Owens Corning certified installation
Fast, Reliable Roof Repair Across Fontana
Roof repair in Fontana usually means one of two scenarios: wind damage from the Cajon Pass corridor, or sun-baked shingles breaking down after years of 100°F summers. A typical shingle or flashing repair runs $350 – $800, while a partial slope replacement with architectural shingles lands between $1,200 and $2,800 depending on decking condition and access. Bedrock Roof Repair serves all of Fontana, from the Etiwanda foothill tracts to south Fontana’s postwar streets, with one team that inspects, diagnoses, and fixes the problem without pushing a replacement you don’t need. Call (833) 589-7850 and we’ll tell you what your roof actually needs.
Why Bedrock Roof Repair Is Fontana’s Preferred Roof Repair Company
Fontana homeowners keep our number because we explain the actual failure before quoting a fix. Alan Cofield built Bedrock Roof Repair around a repair-first sequence: inspect the decking, identify the failure mode, then recommend based on what the roof tells us. That matters here, where a creased shingle tab on a west-facing slope in the Etiwanda foothills often means the ridge cap is already cracked and the underlayment is one storm away from soaking through.
We work across 92335, 92336, 92331, and 92337 every week, so our crews know the tract profiles: mid-century comp shingle roofs over wood sheathing in south Fontana, 1980s architectural shingle homes in the north, flat commercial sections along the 10 and 15 corridors. We stock materials from GAF, CertainTeed, and Owens Corning locally, which means a shingle match doesn’t sit on backorder for two weeks while your exposed decking takes on weather.
Same team from inspection to final nail. No handoffs to a sales rep, no surprise change orders, no upsell pressure. That’s the Bedrock promise and it’s why Fontana homeowners ask for us by name.
Styles & brands we work with






Commercial Roof Repair in Fontana
Commercial roof repair in Fontana covers a lot of ground: warehouse and distribution buildings along the 10, older industrial flat roofs near the 15 interchange, and retail centers scattered through 92335 and 92337. We handle membrane patches, flashing replacement at parapet walls, drain and scupper repairs, and isolated decking replacement where ponding water has softened the substrate. A commercial flat roof patch in Fontana typically runs $800 – $2,200 depending on membrane type and access, while parapet flashing repair lands between $1,500 and $3,500.
Flat Roof Patches and Membrane Repair
We cut out the failed section, inspect the insulation board beneath for moisture, and weld or adhere the new membrane to match the existing system. If the decking is wet, we replace it now rather than covering it and pricing the callback later.
Flashing and Drain Repair on Fontana Commercial Buildings
Most commercial leaks in Fontana start at terminations: parapet caps, roof-to-wall junctions, and scuppers or drains pulling away from the membrane. Wind events off the pass can peel metal counterflashing loose, and a single lifted seam lets every winter storm drive water into the wall cavity.
Roof Leak Repair in Fontana
Roof leak repair in Fontana usually traces back to two culprits: wind-lifted shingles on west-facing slopes nearest the pass, or deteriorated flashing at a penetration, valley, or wall junction. Fontana homeowners should expect a leak diagnosis and targeted repair to run $350 – $900 for most flashing and vent boot work, while a valley rebuild with new underlayment and shingles lands between $900 and $1,800. The number moves when we open the decking and find rot, because covering soft sheathing guarantees the same leak returns.
Vent Boot and Penetration Repair
A cracked neoprene boot or lifted pipe flashing is the most common leak source in 1980s and 1990s tract homes across 92335 and 92336. We replace the boot, reset the flashing, and seal the seam with a polyurethane sealant rated for Inland Empire UV load.
Valley and Flashing Repair
In the Etiwanda foothills, we see valley metal worn through by wind-driven debris years before the shingles around it fail. Repair means removing the overlapping shingles, replacing the valley metal or membrane, and relaying materials so water sheets into the gutter instead of under the decking.
Trusted Brands We Service in Fontana
We repair and install materials from GAF, CertainTeed, and Owens Corning, so the shingle or membrane we put on matches what’s already on your Fontana roof. That matters for color match on a slope replacement, for wind rating on the west face, and for not voiding a remaining manufacturer warranty. Because we source from three of the industry’s leading names, the recommendation follows the roof condition and your budget, not a supplier incentive. We keep common GAF architectural colors and CertainTeed ridge cap stock staged for Fontana jobs, which shortens the wait between diagnosis and repair.
See the difference
Before
After
Before
After
Before
AfterCommon Roof Repair Problems We See in Fontana Homes
- Wind-lifted shingle tabs on west-facing slopes: The base of the Cajon Pass creates a wind tunnel that hits the Etiwanda and north Fontana foothill tracts harder than the rest of the city. Creased, lifted tabs near the ridge are a warning sign, not a cosmetic issue.
- Cracked ridge caps and missing hip shingles: After a Santa Ana event, we find ridge caps split clean through while the field shingles look fine from the ground. Missing hip shingles follow the same pattern: wind works the edges first.
- UV-degraded architectural shingles on 1980s tract homes: Granule loss across 92335 and 92336 leaves the asphalt mat exposed. A repair that only replaces a few tabs leaves surrounding shingles ready to fail in the next 100°F summer.
- Failed flashing at wall junctions and penetrations: Fontana’s hot-dry climate bakes sealant until it cracks, then the first concentrated winter storm drives water in. We see this on chimneys, skylights, and roof-to-wall transitions throughout south Fontana and the older postwar blocks.
Pricing for Roof Repair in Fontana, CA
Here’s what Fontana homeowners should expect to pay. A targeted shingle replacement runs $350 – $800. Flashing or vent boot repair lands at $400 – $900. A valley rebuild with new underlayment runs $900 – $1,800. A partial slope replacement in architectural shingles costs $1,200 – $2,800, depending on decking condition, access, and ridge or hip complexity. The price moves when we uncover soft decking or failed underlayment, which is common on wind-exposed west-facing slopes. That’s why we write allowances into every repair contract and get written approval before touching anything beyond the original scope. Call (833) 589-7850 for a free estimate and a line-item quote that won’t surprise you midway through the job.
We Also Serve Cities Near Fontana
Bedrock Roof Repair works daily in Fontana and the neighboring Inland Empire cities of Bloomington, Rialto, Glen Avon, and Pedley. We know the wind patterns, the housing stock, and the failure modes across this stretch of the pass corridor. If you’re just outside Fontana and want a straight answer on a creased shingle or a ceiling stain, call (833) 589-7850 and we’ll schedule an inspection. See our full Roof Repair services or learn about our local coverage at Roof Repair in Fontana.
Serving Fontana, CA — Our Local Coverage Area
We’re based in the Fontana 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 About Roof Repair in Fontana
Yes, a creased or lifted shingle tab is an active failure, not a cosmetic issue. The seal strip has broken, and the exposed nail head or underlayment seam is now taking driven rain on the next storm. We fix the lifted tabs, replace cracked ridge caps, and reset the drip edge before water finds its way inside. Call (833) 589-7850 for a free inspection, especially if your home sits in the Etiwanda foothill tracts or any west-facing Fontana slope.
Because wind-driven rain gets past the shingle layer before interior signs show, saturating the sheathing from above where it’s hidden under the shingles and underlayment. We see this most on west-facing Fontana slopes, where lifted tabs let water soak the decking for weeks before a ceiling stain appears. We always inspect the decking when we pull shingles and price any rot repair in writing before proceeding, so the quote never moves without your approval. Call (833) 589-7850 to schedule an inspection that checks the full assembly, not just the surface.
Ask each company what they’re replacing down to the material line: shingle type, underlayment spec, ridge cap, drip edge, fasteners, and decking contingency. A bid that says “repair the wind damage” without a line-item scope will absolutely move once work starts. At Bedrock, we write the full scope into the contract, include a decking allowance, and never proceed on hidden damage without your written sign-off. Call (833) 589-7850 and we’ll walk your Fontana roof with you and show you exactly what we’re seeing.
In many cases, yes. We match the existing shingle profile and color, replace the failed slope including underlayment, and tie into the adjacent slopes properly so the repair integrates cleanly. The catch is granule loss across the surrounding shingles: if the rest of the roof has 40 percent granule loss, the repair will outlive the adjacent slopes and you’ll chase failures uphill. We’ll tell you if the damaged slope is isolated or if the whole field is near the end, and let you decide with real information. Call (833) 589-7850 for a slope-by-slope assessment in 92336 or anywhere in Fontana.
The 130 mph rating applies only when the shingles are nailed to the manufacturer’s high-wind pattern, with a properly installed starter course and ridge cap. Most Fontana roofs we open up were not nailed to that pattern, and the ridge cap is the first component to fail regardless of field shingle rating. If your west-facing slope has survived repeated Santa Ana events, the next storm is the one that tests the ridge line. We repair and replace to wind-rated specs so the fix outlasts the next pass event. Call (833) 589-7850 and we’ll check your nailing pattern and ridge condition before you need it.
Written by Alan Cofield, Owner at Bedrock Roof Repair, serving Fontana and the Inland Empire.