Free roof inspection with deck photos before we talk money - GAF and Owens Corning certified installation
Before
After
Before
After
Before
AfterFast, Reliable Roof Repair Across Claremont
Roof repair in Claremont usually means one of two things: a leak that has already found its way inside, or a roof that is showing age and will leak before long. The cost for most repairs on Claremont homes lands between $450 and $1,850, with the majority of leak repairs falling in the $650 – $1,200 range. A sagging valley, a rusted vent boot, or flashing that has pulled away from a chimney are all repairable, usually in a single visit. Call (361) 320-9467 and we will get a Claremont technician to your roof, written price in hand before any work starts.
We work all over Claremont, from the 1900s bungalows near the Village to the 1990s two-story homes in the eastern hills. The roofs are different, the problems repeat, and the fix usually comes down to getting water moving off the roof the way the original builder intended. We live for that kind of work.
Why Brennan Roofing Is Claremont’s Preferred Roof Repair Company
Brennan Roofing operates under The Garrison Standard, which is simply this: the price goes on paper before any work begins, the crew that shows up is background-checked and in uniform, and every repair is backed by the 365-Day Done Right Promise, a written guarantee for one full year with a free return visit at no charge if the repair fails. That standard applies to a $400 vent boot replacement and a $40,000 re-roof the same way. No fine print, no exceptions.
Claremont homeowners call us because we answer the phone. Not a call center, not a voicemail queue. A live person, 24/7. When a Santa Ana wind rips a section of ridge vent off a home near Memorial Park at 11pm, someone answers and a repair gets scheduled. Travis Oakley, who leads our Claremont crew, has walked more Village-era roofs than most contractors see in a decade. He knows what 1920s skip sheathing looks like, what it can hold, and what it cannot.
There is no “serving since” claim here, because we would rather you judge the work than the timeline. We dispatch from the brand’s Los Angeles office; the crews serving Claremont work here, know the city’s historic-preservation overlay, and carry materials matched to this housing stock. That is the honest version.
Commercial Roof Repair in Claremont
Commercial Roof Repair in Claremont involves a different scope than residential work: larger roof areas, low-slope or built-up roofing, more penetrations from HVAC units and vents, and a repair timeline tied to business hours. Whether it is a flat roof patch on a storefront off Foothill Boulevard or a membrane repair on a professional building near the Colleges, the work starts the same way we start everything: an inspection, a written line-item price, and a repair that happens only after you see the number on paper.
For Claremont commercial roofs, the most common repair calls are around ponding water, failed seams on single-ply membranes, and flashing that has separated at parapet walls. A small patch on a low-slope commercial section typically runs $700 – $1,400 in Claremont, while larger membrane repairs with flashing replacement run $1,800 – $3,500. That written price is fixed before the first fastener comes out.
Flat Roof Patch
Flat and low-slope sections fail at the seams and penetrations first. We locate the actual breach, not just the wet spot, then patch with materials compatible with the existing membrane, which matters more than most people expect. A mismatched patch won’t bond and fails within a season or two.
Flashing Repair
On Claremont commercial buildings, flashing at HVAC curbs, skylights, and parapet walls is where water starts. We replace it cleanly, seal it to manufacturer spec, and give you the same one-year written guarantee as a full residential repair.
Roof Leak Repair in Claremont
Roof Leak Repair in Claremont usually traces back to one of three suspects: debris-dammed valleys from the city’s mature oaks and sycamores, dried-out underlayment beneath old clay tile, or tired flashing around chimneys and pipe penetrations. In the Village and the college-adjacent neighborhoods, we often find the leak starts at a valley where leaves have been holding water against the underlayment for months before any stain shows on a ceiling. By the time you see it, the decking underneath may have started to rot.
Most Claremont leak repairs run $650 – $1,200 when the problem is a single penetration or flashing failure. A valley repair with underlayment replacement on an older home runs $1,200 – $2,400 depending on how much tile or shake has to be lifted and relayed. We write the price before we start, and we do not move it at the door. Call (361) 320-9467 for a free estimate.
Valley Repair
Valleys collect more than water in Claremont. Coast live oak leaves, sycamore leaves, and deodar needles pile into the valley channels, hold moisture against the underlayment, and quietly rot the sheathing underneath. A proper valley repair means clearing the debris, replacing the failed underlayment and valley metal, then setting the original shingles or tile back to correct coursing.
Vent Boot Repair
Vent boots split from UV exposure faster in Claremont than in coastal cities. The sun up here is unrelenting. A split boot lets water follow the pipe right into the attic, and it is one of the least expensive fixes we do. Typically $450 – $750, done in an hour or two, and guaranteed in writing for a year.
Trusted Brands We Service in Claremont
Brennan Roofing stocks and installs materials from GAF, Atlas, and CertainTeed, and for Claremont’s older homes we source salvaged clay tile from local lots to match original 1920s work. When a roof was built with a specific tile profile, a modern substitution sticks out and can draw a correction notice from the historic-preservation board. We carry the right fasteners, underlayment, and flashing for both modern asphalt shingle repairs and the older tile and shake roofs that dominate the Village and College neighborhoods. Parts are matched and staged before we start, so a repair is not waiting on a warehouse order.
Common Roof Repair Problems We See in Claremont Homes
- Debris-dammed valleys and gutters. Mature coast live oaks, sycamores, and deodars drop year-round, and the debris loads up valley channels on nearly every roof in the tree canopy neighborhoods. Water backs up, sits against the underlayment, and rots skip sheathing before any interior stain appears.
- Dried-out underlayment under intact clay tile. Claremont’s 100°F-plus summer days bake the substrate beneath original barrel tile. The tile looks fine, but the underlayment beneath it has cracked and separated, so leaks start at valleys and flashings, not through broken tile.
- Wind-driven rain at ridge vents and drip edge. Santa Ana winds test the fastening and seal details on 1980s – 2000s hillside homes, especially where architectural shingles are 20-plus years old. Ridge vents lift, drip edge separates, and monsoon rain finds the gap.
- Mismatched prior repairs on historic roofs. We routinely find 1920s clay tile that was patched with a mismatched modern tile or sealant after a leak. The fix fails, water gets back in, and the homeowner is paying twice for the same leak.
Pricing for Roof Repair in Claremont, CA
A vent boot replacement in Claremont runs $450 – $750. Flashing repair around a chimney or skylight runs $600 – $1,100. A valley repair with underlayment replacement on a composition shingle roof runs $1,100 – $2,200; on a clay tile roof, $1,500 – $2,800 with salvaged tile matching. Roof leak investigation without repair runs about $350 and is credited toward the repair when you proceed. The two factors that move the number most: whether the roof sits over skip sheathing (you cannot just nail into it the same way), and whether original tile has to be lifted and relaid. Every estimate is free and written before work starts. Call (361) 320-9467 to schedule yours.
We Also Serve Cities Near Claremont
Our crews handle Roof Repair throughout the eastern San Gabriel Valley and the Inland Empire border. Beyond Claremont, we serve Montclair, La Verne, Upland, and Ontario. If you are a few miles out, the same Garrison Standard applies: written price first, background-checked crew, one-year written guarantee.
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 Roof Repair in Claremont
Yes, in most cases. The Claremont Village Historic District and some college-adjacent overlay zones require design review before visible roofing changes, and the review matters more for re-roofing than for in-kind repair. Replacing failed underlayment and relaying the original tile does not change the roof’s appearance, but swapping to a new material or color can trigger review. We prepare repair scopes that keep the original exterior appearance so the work typically falls within the ordinary-maintenance exemption. Before you sign anything, ask your roofer whether they know the overlay maps. Most don’t. Call (361) 320-9467 if you want a contractor who does.
Because the roof is built differently underneath. Older Claremont bungalows near the Village typically have wood shake or clay tile over skip sheathing, boards spaced with gaps, rather than a solid plywood deck. That means more lift-and-relay labor, hand-nailing where power tools can crack old tile, and sourcing salvaged tile that matches the original profile. The repair is not just fixing a leak; it is preserving a roof system that can last another century if handled correctly. The extra cost buys that. Call (361) 320-9467 for a written line-item estimate that shows exactly where the money goes.
In almost every case, the underlayment has failed while the tile still looks fine. Claremont’s summer heat, routinely over 100°F, dries out and cracks the felt or membrane beneath the tile. Water then reaches the skip sheathing at valleys, penetrations, and eaves. That is why we replace underlayment and flashing as a single job when we repair a leak on a tile roof, instead of just sealing the visible gap and hoping. Patching over a failed substrate is a temporary measure, not a repair. Call (361) 320-9467 if you see water stains and want the actual cause found.
We treat it as a structural issue, not a maintenance nuisance. Debris loads in valleys and gutters sit against the underlayment, hold moisture, and accelerate rot. When we repair a Claremont roof, we clear the valleys and drains, replace any underlayment that has been compromised, and install new valley metal where the original has corroded from constant damp contact with leaves and needles. We also recommend gutter guards on certain tree-canopy homes, specifically where deodar needles are the main debris, because needles pass through standard mesh guards. Call (361) 320-9467 for a free estimate on a repair that accounts for your trees.
Yes. We source salvaged clay barrel tile from local lots to match the original profile, color, and weathering on Claremont’s 1920s Spanish Colonial Revival and Craftsman roofs. That sourcing is part of the repair quote, and we set the matched tile to the original coursing so the repaired section does not read as a patch. If a homeowner wants a full re-roof instead, we explain the design-review implications before any material is ordered. Call (361) 320-9467 to get a written price that includes tile matching.
The Claremont Roof Repair Reality: Trees, Tile, and Historic Overlay
Claremont is not a generic Inland Empire roofing market. The city’s tree canopy and its historic-preservation overlay around the Village and the Claremont Colleges change nearly every repair we quote. On a 1920s clay tile roof, the tile is usually not the problem. The underlayment beneath it is. Decades of 100°F heat has baked it, cracked it, and separated it, so water reaches the skip sheathing while the tile overhead still looks intact. In those homes, the right repair is underlayment replacement and matching salvaged barrel tile, not a tear-off, and not a modern substitution. A roofer who does not understand skip sheathing, or who cannot source matching tile, will either damage the roof during the repair or leave a visible patch that draws a correction notice. Finding that roofer matters more than finding the low bid.
We repaired a 1928 Spanish Colonial Revival on Harvard Avenue near the Claremont Village where the original clay tile had been patched with mismatched pieces after a valley leak. We pulled the tile in the affected valleys, replaced the failed underlayment and flashing, then relayed the original tile and matched from a salvaged lot. We also replaced the drip edge and added ice and water shield at the penetrations and valleys before setting the tile back to its original coursing. That one repair fixed a leak that two previous contractors had sealed and walked away from.
Meanwhile, the mature coast live oaks and sycamores that give Claremont its character also load valley channels and gutters with leaves year-round, not just in autumn. Water dams against the debris, sits on the underlayment, and rots skip sheathing before a stain ever reaches the ceiling. A $650 valley repair becomes a $2,400 underlayment and sheathing replacement once the rot sets in. Clearing and repairing early is cheaper, always. Call (361) 320-9467 and we will tell you in writing what your roof actually needs, not what is easiest to sell.
Get Your Claremont Roof Repair Estimate
If you have a leak, a missing shingle, or a roof that has simply stopped doing its job, call (361) 320-9467. A live person answers. We will schedule a Claremont technician to inspect the roof, put the price on paper before any work starts, and stand behind the repair with the 365-Day Done Right Promise, a written guarantee for one full year with a free return visit at no charge if the repair fails. Written price first. Background-checked crew in uniform. No exceptions. Call (361) 320-9467 today.
Written by Travis Oakley, Owner at Brennan Roofing, serving Claremont under The Garrison Standard.