Free roof inspection with deck photos before we talk money - GAF and Owens Corning certified installation
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AfterFast, Reliable Roof Repair Across Fresno
Roof repair in Fresno costs most homeowners between $350 and $1,400 for typical leak repairs, shingle replacement, or flashing work, with more involved repairs like valley rebuilds or decking replacement running $1,200 to $3,500. Our Roof Repair team serves every Fresno neighborhood, from the Tower District to Woodward Park, and we answer the phone live around the clock. Call (743) 200-8347 for a written quote before any work begins – that’s just how we operate.
Fresno’s climate punishes roofs in ways most contractors don’t fully account for. We do. Grant Whitlock and the Mercer Roofing crews work in this heat and through the Tule fog season, and we know what fails here and when. That local knowledge shapes how we scope every repair before we quote it.
Why Mercer Roofing Is Fresno’s Preferred Roof Repair Company
Homeowners around Fresno keep our number because of one thing we do that almost no other roofer in the Valley does: we send you the name and photo of the technician before they arrive. You’ll see a badged, background-checked professional in a clean uniform at your door, not a stranger in an unmarked truck. For families with young kids, people home alone, or older homeowners who want proof of who’s coming, that detail changes everything about having roof work done.
We’re part of the Threshold Group family, founded in 2000. Every Mercer location is independently owned and operated, and each one is held to the Threshold Verified standard: background-checked, identity-verified, photo-badged technicians on every visit. That’s contractual, not optional. We put the 365-Day Done Right Promise on every repair in writing. If something’s not right within a year, we come back and make it right – free. No fine print, no prorating.
Fresno homeowners call us from places like Sunnyside, Fig Garden, and the Roosevelt neighborhoods, and reviews from local customers consistently mention the same things: a real person answers the phone, the tech arrives when promised with a badge, and the written price matches the final invoice. That’s not complicated. It’s just uncommon in this trade.
Commercial Roof Repair in Fresno
Commercial Roof Repair across Fresno’s warehouse districts, retail corridors along Shaw and Blackstone, and the industrial parks southeast of downtown comes with a different set of pressures than residential work: bigger roof areas, more penetrations, heavier foot traffic, and tenants whose operations can’t stop while water drips onto inventory. We scope commercial repairs by walking the entire field first, mapping every penetration, drain, and seam before touching anything. Most Fresno commercial repairs land between $800 and $4,500 depending on membrane type, the extent of water damage beneath the surface, and whether the building sits under a cool-roof obligation through Climate Zone 13.
Flat and Low-Slope Work
Worn membrane seams and failed drain collars on low-slope commercial buildings are the most common calls we get from Fresno property managers. We repair the source, not just the visible tear: heat-welded TPO or PVC patches, new drain boots, and seam re-adhesion. When a flat roof needs more than patching, we’ll give you a written square-foot price before work starts.
Tenant-Occupied Strip Malls
A leaking roof over a Fresno tenant’s storefront isn’t just a building problem, it’s a lease problem. We schedule repairs around business hours where possible and use odor-free methods where ventilation is limited. Same rule applies on every commercial job: written price first, photo-badged tech at the door, and a written repair guarantee included.
Roof Leak Repair in Fresno
Roof Leak Repair in Fresno usually falls between $350 and $900 for common failure points like vent boots, pipe collars, flashing seams, or a small shingle patch, but leaks that have been running long enough to rot decking beneath the surface can push past $1,500. The Fresno problem is visibility: eight months of dry heat hides a lot of damage, and by the time water shows up on the ceiling, it’s often been working through the roof assembly for weeks or months. We trace the leak from the water stain back to the source – because water runs downhill and sideways, and the wet spot on your ceiling is rarely directly below the hole.
Fresno’s Hidden Leak Season
Tule fog is the leak exposure trigger most Fresno homeowners don’t see coming. That dense Valley floor fog settles on roofs and holds moisture against every flashing gap and cracked tile for days, sometimes weeks. The same roof that handled a 105-degree August afternoon just fine can start dripping in January fog. Our leak repair work includes checking every penetration and seam, not just the one that’s leaking today.
Decking Damage Under Failed Seals
When a vent boot or pipe collar fails on a Fresno roof, the water usually moves horizontally through the ceiling cavity before it pools anywhere visible. By the time it stains drywall, the OSB or plywood decking around the penetration is often soft. We cut out and replace rotted decking, install new underlayment and flashing, and re-set the shingles properly. That’s why our repair quotes are written after we inspect, not before we look.
Trusted Brands We Service in Fresno
Our crews install and repair shingle roofs using manufacturer-recognized systems from GAF, CertainTeed, and Owens Corning, along with Atlas, Tamko, IKO, and Boral for tile and specialty applications. For Fresno homeowners, that means we can match existing shingle profiles and source the right tile for a 1990s tract home off Herndon just as easily as a ranch in central Fresno. We keep common flashing components, vent boots, and underlayment on hand so most repair work doesn’t wait on a parts order. When your roofer knows what’s on the roof and where to get it, repairs happen faster.
Common Roof Repair Problems We See in Fresno Homes
- Desiccated felt under concrete tile: The 1990s-era subdivisions along the Shaw-to-Herndon corridor were almost universally tiled over single-layer 30-lb felt that’s now dust. The tile looks fine from the street, but the underlayment is gone and the decking beneath is often rotted. We check this before quoting any tile repair.
- Thermal expansion opening flashing seams: Fresno’s extreme summer heat and cool winter nights create expansion cycles that crack tile and pull flashing apart. The failure point is usually at valleys, sidewalls, and pipe penetrations. We re-seal and, where needed, rebuild those seams with proper materials, not just caulk.
- Cool-roof compliance gaps from previous re-roofs: Fresno sits in CEC Climate Zone 13, and any re-roof must meet Title 24 cool-roof standards. Some previous re-roofs did not. If a repair turns into a re-roof, we handle the compliance piece so you pass inspection the first time.
- Low-slope patches failing on older ranch homes: The 1950s-1970s tract homes in west and central Fresno were built with low-slope roofs designed for built-up tar-and-gravel. Many have been patched and re-covered multiple times, and each patch is a future leak point. We assess the whole low-slope section, not just the visible problem spot.
Pricing for Roof Repair in Fresno, CA
Most Fresno roof repairs run $350 to $1,400, with the most common jobs – vent boot replacement, small shingle patches, and flashing re-seals – falling between $350 and $650. Valley rebuilds, decking replacement, and hip or ridge cap repair typically land between $1,200 and $3,500 depending on the extent of hidden rot and how much tile needs to be reset. What moves the price in Fresno more than anything is what we find when we inspect: the 30-lb felt under that tile, the condition of the decking beneath it, and whether the previous work was done to Current Title 24 rules. We give you a written, line-item price before any work starts, every time. No flat bids that get “revised” later. Call (743) 200-8347 to schedule a free on-roof estimate.
If your repair sits on rural acreage in the county around Fresno, the scope changes again. More on that below.
We Also Serve Cities Near Fresno
Mercer Roofing serves Roof Repair in Fresno and the surrounding Central Valley communities including Clovis, Madera, Sanger, and Fowler. If you’re in one of these towns and need a roofer who answers the phone and shows up badged and uniformed, call (743) 200-8347.
Serving Fresno, CA - Our Local Coverage Area
We’re based in the Fresno 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 Fresno
A simple repair – replacing a few shingles, re-sealing flashing, changing a vent boot – is not a re-roof and does not trigger the full Title 24 cool-roof compliance process for Climate Zone 13. The rule kicks in when you’re replacing or recovering the roof assembly at scale, typically when a permit is pulled for a re-roof. That said, if your repair grows into something bigger once we open it up – which happens on older Fresno tile roofs more than people expect – we’ll scope the compliance piece into the written quote so you’re not surprised at inspection. Call (743) 200-8347 with your address and we’ll give you an honest answer about what applies to your roof.
Because on 1990s-era Fresno tile roofs, the underlayment is often desiccated and the decking rotted beneath tile that looks perfectly fine from the street. We tore into a concrete tile roof off Shaw Avenue near Herndon and found exactly that: intact tile, failed hip caps, and rotted OSB decking hiding beneath what everyone assumed was a sound roof. If we quote a tile repair without checking the decking, the quote is fiction. Attic inspection shows us moisture staining, decking condition, and whether the felt is still doing anything. That’s the difference between a written price that holds and a flat bid that becomes a money-loser for someone. Usually the homeowner.
Acreage jobs near Fresno involve more than the roof. Most rural properties are in Fresno County jurisdiction rather than city, so we confirm what, if anything, requires a permit at the county level before we start. Grading and drainage matter more on open lots: sheet flow against a structure can undermine flashing over time, and we check the grade while we’re up there. Septic systems and wells create setbacks that can affect access for material staging, and long driveways mean longer hauls for tile, decking, and tear-off debris. We scope all of that into the written price so an outbuilding or detached shop repair doesn’t turn into a surprise logistics charge.
Vent boots, pipe collars, and flashing seams are the top leak sources on Fresno roofs because the extreme thermal cycles here crack sealant and separate metal from masonry over time. On tile roofs, cracked tile at valleys and hips is common. We find leaks by working from the inside out: checking the attic for moisture trails, then mirroring that track onto the roof surface. The water stain on your ceiling is rarely directly below the penetration that’s leaking, so tracing the path is the only way to quote the right repair the first time. For a free leak inspection, call (743) 200-8347.
No. Hip caps and ridges are the first thing to fail on Fresno tile roofs because they sit at the highest point of thermal expansion, and they’re the last thing you can see from the ground. Replacing a few field tiles when the hip is cracked and seeping does nothing but move the leak along the ridge. The right repair involves removing the failed cap or ridge tiles, inspecting and replacing the underlayment and fasteners beneath, and re-setting with fresh mortar or proper mechanical fasteners. That’s a $400-$900 job on most Fresno homes, and it’s covered by our written 365-Day Done Right Promise.
Get Your Fresno Roof Repair Quote in Writing
If you need roof repair anywhere in Fresno – Tower District, Woodward Park, Fig Garden, Sunnyside, or out on county acreage – call (743) 200-8347. You’ll talk to a live person, not a voicemail. We’ll schedule a time, send you the name and photo of your technician before they arrive, and that tech will show up with a photo ID badge and a clean uniform. You’ll get a written price before any work starts, and a written guarantee on the repair itself. That’s how Mercer Roofing has done it since 2000, and that’s how we’ll do it on your roof.
Written by Grant Whitlock, Owner at Mercer Roofing, serving Fresno and the Central Valley.