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 Replacement Across Glendora
Roof replacement in Glendora runs $12,500 – $28,000 for a standard home, with architectural shingle tear-offs on mid-century ranches usually landing between $14,000 and $19,000 before any decking repair. The foothill homes along Sierra Madre and up toward Glendora Mountain Road push higher because fire-code assemblies and wind-uplift specs aren’t optional there. We work throughout 91740 and 91741, from the flats north of Route 66 up into the Very High Fire Hazard Severity Zone above Foothill Boulevard. Call (866) 282-5070 and we’ll give you a straight read on what your roof actually needs before anyone quotes you a number.
Why Buena Park Roof Repair Is Glendora’s Preferred Roof Replacement Company
Rick Dunnigan built Buena Park Roof Repair around a simple rule: tell the homeowner what the roof needs, not what pads the invoice. That’s why the inspection comes first and the replacement recommendation comes second. We service seven manufacturers, GAF, CertainTeed, Owens Corning, IKO, Atlas, Tamko, and Boral, so the material conversation in Glendora starts with your house and your fire zone, not with whatever brand we happen to stock deepest.
Glendora homeowners call us because we understand what the Colby Fire changed. Properties in the foothill interface can’t just get a shingle swap anymore. The underlayment class, the ridge vent, the eave detail, those get reviewed against WUI assembly requirements before the permit is signed off. Our Roof Replacement team has walked enough of those inspections to know which spec packages clear the first time. That saves you weeks, not days.
We also know Glendora’s housing stock. The 1950s and 1960s ranches scattered from Citrus Avenue over to Lone Hill have framing and decking conditions that a tract-home roofer from the flatlands won’t recognize. And the newer custom homes in the foothills above Sierra Madre come with their own challenges, tile and wood-shake transitions, steep pitches, and homeowners who expect the work to look as good as it performs. We’ll tell you what it actually needs. Repair when possible, replace when necessary.
Styles & brands we work with
Roof Replacement Contractor in Glendora
A Roof Replacement Contractor in Glendora is handling two jobs at once: the visible roof system and the code-compliance file that goes with it. On a typical project we strip the old material to the decking, inspect and replace damaged sheathing, install the specified underlayment, set the shingle system to the manufacturer’s wind-uplift nailing pattern, re-flash every penetration and transition, and finish with the drip edge and ridge ventilation. Then the job gets documented so your insurer and the city both have what they need.
The tear-off that carries a permit
Glendora’s foothill zone is the difference between a roof that gets signed off and one that gets tagged. We build the spec package around Class A fire rating and the WUI assembly rules that apply to your address, not to the house three blocks downhill. The permit drives off the underlayment class and eave detail, and the color choice comes after.
Working with your designer or architect
When a Glendora custom home is getting a new roof, there’s usually someone else at the table. We coordinate directly with designers and architects, which means material selections, flashing details, and sequencing get resolved before the tear-off starts. That’s the difference between a schedule that holds and one that slips every other week.
Asphalt Shingle Roof Replacement in Glendora
Asphalt Shingle Roof Replacement in Glendora is the most common path off old wood-shake or failing composition. Architectural shingles from Atlas, IKO, or Tamko give you a Class A fire rating when installed over the right underlayment, which is exactly what the foothill fire zone demands. A standard ranch in the 91741 flats typically runs $13,500 – $18,500. A larger custom home in 91740 above Foothill runs higher because the decking and flashing scope grows with the pitch and the view lines.
Wind-uplift nailing done to spec
Santa Ana winds over 60 mph find weak nailing at the ridge, the gable edges, and the valleys first. We set the high-nail pattern the manufacturer’s wind rating actually requires and inspect it before the cap goes on. When the documentation gets filed, the wind rating is real, not claimed.
Custom details, not tract-grade defaults
Many Glendora homes have overhangs, fascia lines, and roof-to-wall transitions that deserve better than off-the-shelf flashing. We rebuild the drip edge, match the existing fascia, and detail the eaves so the finished roof reads as intentional, not patched.
Trusted Brands We Service in Glendora
We install and warranty products from GAF, CertainTeed, Owens Corning, IKO, Atlas, Tamko, and Boral. That’s seven brands and one specialty: roofing. For Glendora homeowners, the real benefit is simple. If your existing roof is an IKO architectural shingle and you’re replacing a section rather than the whole field, we can match it from the same manufacturer, same color family, same profile, instead of telling you the brand changed. Our Roof Replacement in Glendora work pulls from local supply channels we use weekly, so material turnaround doesn’t sit in limbo. Choose your material, not ours.
Common Roof Replacement Problems We See in Glendora Homes
- Wood-shake roofs still getting patched after the Colby Fire era. The visible shake gets a repair, but the decking and fire assembly underneath never get brought to Class A or WUI code. The next rain or ember event finds the same weak spots.
- Santa Ana wind-uplift failures at the ridge and gable edges. The high-nail pattern on architectural shingles wasn’t spec’d or inspected when the last roof went on. Wind gets under the cap and starts peeling back what should have held.
- Sun-baked underlayment around penetrations and skylights. Glendora’s summer heat cooks the flashing seams and underlayment at every pipe boot, skylight curb, and valley. Then the first heavy winter rain finds the weakened joint, and the leak starts inside.
- Flat sections on foothill custom homes with ponding drainage. Tile and shingle transitions on steep lots often leave a low-slope section that drains poorly. Without correct tapering and membrane work, those areas hold water right where the structure is oldest.
See the difference
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AfterPricing for Roof Replacement in Glendora, CA
Here’s what we see in the Glendora market right now. A full architectural shingle replacement on a 1,800 – 2,400 square foot single-story ranch runs $14,000 – $19,000. Two-story custom homes above Foothill Boulevard typically land between $20,000 and $28,000 depending on pitch, decking condition, and how much custom flashing the design calls for. Roof decking replacement adds $2.50 – $4.00 per square foot when we find rot or fire damage after the tear-off. Flat roofing sections on custom builds are a separate scope, usually $9 – $14 per square foot fully installed. The price gets fixed in writing before we order materials, no change orders after the permit package is set unless you add scope. Call (866) 282-5070 for a line-item estimate. It’s free, and the inspection doesn’t obligate you to anything.
We Also Serve Cities Near Glendora
Buena Park Roof Repair handles roof replacement across the San Gabriel Valley foothills. Along with Glendora, our crews regularly work in Azusa, Citrus, Covina, and Irwindale. If your home sits near the 210 corridor or up against the foothills, call (866) 282-5070 and tell us what street you’re on. We’ll give you the same straight read we give our Glendora customers.
Serving Glendora, CA — Our Local Coverage Area
We’re based in the Glendora 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 Replacement in Glendora
Because the spec package for a foothill roof isn’t sitting on a shelf. Class A fire-rated underlayment, WUI-compliant ridge vent, and architectural shingles in specific color lots from Atlas, IKO, or Tamko often carry a two-to-five-week lead once the order clears the manufacturer. Labor we control. The schedule lives and dies by what the distributor can deliver. We fix the price in writing before we order so those lead times don’t turn into change orders later. Call (866) 282-5070 and we’ll give you the current lead-time reality for your material spec.
No, not automatically, but the practical answer is usually yes. Post-Colby Fire, wood-shake replacements in Glendora’s Very High Fire Hazard Severity Zone have to clear Class A fire-rating and WUI assembly rules. That means the underlayment class, the eave detail, and the ridge vent all get reviewed by the city before the permit signs off. Most homeowners find a Class A architectural shingle is simpler to spec and cheaper to insure than trying to rebuild a compliant wood-shake system. We’ll show you both paths and let you choose.
Line them up against the same four items: underlayment class, shingle brand and series, wind-uplift nailing spec, and the warranty registration. If one bid lists a generic “synthetic underlayment” and the other specifies a Class A fire-rated assembly with documentation, the prices are not comparable. Ask both contractors what gets filed with the city and what gets filed with the manufacturer. Then call (866) 282-5070 and we’ll walk you through our line-item breakdown.
At minimum, the shingle should carry a 110 mph wind rating, and the nailing pattern should match the manufacturer’s high-wind spec, typically six nails per shingle in the field and more at the ridge, valleys, and gable edges. For a Glendora foothill home, we spec the same nailing pattern we’d use for a 130 mph zone, because the Santa Ana gusts don’t respect the map lines. The documentation goes in your file for the insurer. If a bid doesn’t list the nailing pattern, the wind rating on the shingle box doesn’t mean anything.
Yes. We work directly with the designer or architect on custom Glendora projects, which means material selections, flashing details, and the spec package get resolved before the tear-off starts. You don’t get a roofer waiting on the architect’s answer at the gable detail while the framing sits exposed. The price gets fixed in writing once the spec is locked, and the schedule runs on lead times, not guesswork. Call (866) 282-5070 to set up the inspection before your designer finalizes the roof plan.
Get Your Glendora Roof Replacement Estimate
If your roof is aging, leaking, or sitting under a patchwork of repairs, let’s look at it together before anyone quotes you a number. We’ll inspect it, tell you what it genuinely needs, and put the scope in writing with a fixed price. Call (866) 282-5070 to schedule your free estimate in Glendora. Rick and the crew know these foothill homes, and we’ll give you a straight answer, even if that answer is repair instead of replacement.
Written by Rick Dunnigan, Owner at Buena Park Roof Repair, serving Glendora and the San Gabriel Valley foothills.