Free roof inspection with deck photos before we talk money - GAF and Owens Corning certified installation
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AfterFast, Reliable Roofing Company Across Claremont
Most Claremont roofing calls we answer are not full tear-offs. They are valleys packed with coast live oak leaves, original 1920s tile lifting because the original fasteners finally corroded through, or an asphalt roof cooked brittle by a decade of 100°F summers. A typical roof repair in Claremont runs $450 – $1,900, and a full replacement on a Claremont home usually lands between $14,500 and $38,000 depending on material and decking condition. If you are looking for a Roofing Company that will put the price on paper before any work starts and back it with a written one-year guarantee, call Brennan Roofing at (361) 320-9467.
Why Brennan Roofing Is Claremont’s Preferred Roofing Company
We operate under The Garrison Standard, and that means the same thing on a two-story tract home in South Claremont as it does on a 1925 Spanish Colonial Revival three blocks from the Colleges. The price goes in writing before any work starts and it does not move at the door. Every technician who shows up is background-checked, in uniform, and knows the difference between a roof that needs repair and one that needs a faster path than the homeowner wants to hear.
Homeowners in Claremont call us because the neighborhoods here are specific. The Village, the college-adjacent streets, Claraboya, and the north Claremont tracts each carry different housing stock, different tree cover, and different roof failure patterns. Our estimators spend time on the roof, not just on the driveway with a drone photo, because skip sheathing under 100-year-old tile does not reveal itself from street level. Every job carries the 365-Day Done Right Promise: in writing, for one full year, and if a repair or install fails in that window, we come back free.
Travis Oakley runs the crew, and his rule is simple: the homeowner should know exactly who is on their roof and exactly what the work will cost before a ladder goes up.
Roofing Contractor in Claremont
A roofing contractor in Claremont handles the whole roof system, not just the surface you see from the curb. That means decking, underlayment, flashing, drip edge, and ventilation, and in Claremont it frequently means working around a historic-preservation overlay that limits what you can tear off. Claremont homeowners call us when a roof has reached the end of its service life, when a leak has already stained a ceiling, or when a home inspection flags the roof before a sale. A typical roof replacement in Claremont runs $14,500 – $38,000, and a repair runs $450 – $1,900.
Full Roof Replacement vs. Re-Lay
On a 2000s South Claremont two-story with architectural asphalt shingles, a full replacement is usually the shortest path: tear off to decking, inspect, replace damaged sheathing, install new underlayment and shingles. On a 1920s bungalow near the Village, the math changes completely. If the original clay tile is sound, the right job is often a re-lay: strip the tile, replace the failed underlayment, and re-set the same tile. That preserves the historic cover and avoids design-review complications.
How We Scope the Job Before the Quote
We walk the whole roof, check the attic, and inspect valleys, penetrations, and flashing before we put a number on paper. On Claremont homes with mature deodars and oaks, we also check gutter and valley loading, because organic debris is the most common reason water backs up under the drip edge and into the fascia board. The quote you get is the number on paper before any work starts, and it covers the scope we agreed on.
Commercial Roofing in Claremont
Commercial roofing in Claremont runs across a different set of buildings: flat and low-slope roofs on the retail strips along Foothill Boulevard and Indian Hill, offices and institutional buildings near the Claremont Colleges, and older mixed-use buildings in the Village. Commercial roof replacement in Claremont generally runs $9 – $16 per square foot for a full low-slope system, and commercial repairs typically land between $750 and $6,000 depending on membrane type and penetration count. Every commercial job gets a written scope and line-item pricing before any crew shows up.
Low-Slope and Flat Roof Systems
Claremont’s commercial flat roofs carry three burdens: 100°F-plus summer surface heat, Santa Ana wind-driven debris, and drainage that gets clogged with sycamore and oak leaves faster than building owners expect. We install and repair TPO, PVC, and modified bitumen systems, and we re-secure pitch pockets, pipe boots, and edge metal, which are where most Claremont commercial leaks actually start.
Minimizing Disruption for Claremont Businesses
We schedule commercial work around the building’s actual use. For a retail shop on Foothill, that might mean Sunday work or sectioned-off roof access. For an office building near the Colleges, it usually means clear communication with the property manager and a written safety plan. We are responsive on service calls because a small leak over a stockroom in Upland or Claremont turns into a much bigger problem inside a week.
Trusted Brands We Service in Claremont
We install GAF, CertainTeed, and Owens Corning asphalt systems, and we work with IKO where the job calls for it. What matters more than the brand name is that the material gets installed to the manufacturer’s nailing pattern and fastening schedule, which is exactly where cheap crews cut corners. For Claremont homeowners, that matters because architectural shingles rated to 130 mph fail at the nailing pattern, not the shingle itself. We also source replacement tile and metal profiles to match existing Claremont roofs, including salvaged tile where the original can be reused.
Common Roofing Problems We See in Claremont Homes
- Debris loading in valleys and behind chimneys. Coast live oaks, sycamores, and deodars drop year-round across Claremont. When valleys and behind-chimney pockets are not cleared, water backs up under the drip edge and rots the fascia board instead of running off.
- Corroded fasteners and failing underlayment on original tile. On 1920s Spanish Colonial Revival and Craftsman homes across the Village and college-adjacent streets, the tile itself often has decades of life left. The failures are the corroded original nails and the old felt underneath, which degrades from heat and age.
- Builder-grade shingles on 1980s – 2000s tract homes. South Claremont’s asphalt roofs age out early because of intense UV and heat, but many were also installed with too few nails per shingle. High winds find them at the nailing pattern.
- Skip sheathing under old wood shake or clay tile. Older Claremont homes were built with gaps between decking boards, which worked fine for breathable systems but rots out when water gets trapped. Once the decking is hidden after a re-lay, the rot spreads without anyone seeing it.
Pricing for Roofing Company in Claremont, CA
A roof repair in Claremont runs $450 – $1,900. A full replacement on a typical Claremont home runs $14,500 – $38,000. The spread comes down to four things: roof size, material, decking condition, and whether the job requires salvaged tile re-lay versus full tear-off. A re-lay preserving original clay tile on a Village home often lands in the lower-middle of that range, while a full tear-off to decking with new architectural shingles on a two-story South Claremont home pushes toward the top. Our estimates are free, written, and the number does not move after you sign. Call (361) 320-9467 to schedule yours.
We Also Serve Cities Near Claremont
Brennan Roofing serves Claremont and the surrounding Inland Empire foothill communities, including Montclair, La Verne, Upland, and Ontario. If you are looking for a Roofing Company in Claremont that will show up inside the promised window with a written price, give us a call at (361) 320-9467.
Serving Claremont, CA - Our Local Coverage Area
We’re based in the Claremont 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 Roofing Company in Claremont
No. If the tile is intact, the job is typically a re-lay: strip the tile, replace the underlayment, and re-set the salvaged tile over new decking repairs. That preserves the historic cover and usually avoids triggering a full design-review tear-off. The value in a Village roof is in the tile, not in how fast it can be torn off and replaced. Call (361) 320-9467 for a roof inspection to confirm whether your tile is sound.
Because the year-round leaf and needle drop fills valleys and behind-chimney pockets, where moisture gets trapped and water backs up under the drip edge. No roof east of here carries that same organic debris loading, so no roof east of here fails the same way. In Claremont, the fix is regular valley and gutter clearing plus re-secured flashing, not just a new shingle. Call us for a debris and flashing evaluation before the next Santa Ana season.
We spec hot-dip galvanized nails and stainless fasteners on tile and flashing work because the original fasteners on 1920s Claremont homes have often corroded through from decades of irrigation overspray and marine-influenced air. On valley and penetration work, we set copper flashing, which resists the acidic oak-leaf runoff that eats standard galvanized metal faster. The coastal-spec hardware costs more up front, but the cheap inland spec fails within a decade in these conditions. Call (361) 320-9467 for an exact scope on your roof.
They hold up only if they are nailed to the manufacturer’s pattern and the decking is sound. Claremont’s 100°F-plus summers degrade asphalt shingles faster than coastal air would, and Santa Ana winds punish any shingle with too few nails. The shingle rating is not the weak point; the installation is. We install to the full nailing schedule, every row, and we put that in writing. A typical architectural shingle roof on a Claremont home costs $14,500 – $32,000 depending on square footage and decking repair. Schedule a free estimate at (361) 320-9467.
Put the bids side by side and check four things: decking replacement allowed or capped, underlayment type and weight, fastener spec, and what happens if the roof leaks in year one. The cheapest bid almost always caps decking, thins the underlayment, uses standard fasteners, and provides no second-visit guarantee. Our bids are line-item written, we do not cap decking, and the 365-Day Done Right Promise comes back free if anything fails inside the first year. Bring us the other bid and we will tell you plainly where the money went. Call (361) 320-9467.
When you are ready to talk, call (361) 320-9467. The estimate is free, the price goes on paper before any work starts, and a live person answers the phone around the clock.
Written by Travis Oakley, Owner at Brennan Roofing, serving Claremont and the surrounding Inland Empire foothill communities under The Garrison Standard.