Free roof inspection with deck photos before we talk money - GAF and Owens Corning certified installation
Fast, Reliable Roofing Company Across Arcadia
Roofing work in Arcadia moves on a different clock than most of the San Gabriel Valley, and we’ve learned to plan for it. The mountain front, the aging ranch stock, the steady wave of teardown rebuilds. A typical roof repair in Arcadia runs $450 – $1,600, and a full reroof on a standard 1950s ranch usually lands between $14,000 and $28,000 depending on what we find when the old layers come off. If you’re calling from Arcadia, call (743) 200-8347 and a live person answers, day or night. Not a voicemail tree. A person.
We know Arcadia’s roofs because we work on them every week. The 1940s and 1950s ranches south of Huntington Drive, the custom estates climbing into the foothills north of Foothill Boulevard, the townhouse clusters near the Santa Anita mall. Each area has its own failure patterns, and each one needs a different kind of attention. That local pattern knowledge is what keeps a Arcadia roof from becoming a surprise.
Why Mercer Roofing Is Arcadia’s Preferred Roofing Company Company
Arcadia homeowners call us for a specific reason: the person we send is known before they arrive. Every Mercer technician is background-checked, identity-verified, and dispatched under the Threshold Verified standard. Before the visit, you get a name and a photo. At the door, a photo ID badge comes out before the ladder goes up. You never open your door to a stranger you weren’t expecting.
Our reputation in Arcadia is built on written promises, not spoken assurances. Every repair comes with a 365-Day Done Right Promise, in writing, on every job. If the repair fails within a year, we come back and make it right. The guarantee is part of the contract, not a brochure line. Our Roofing Company team covers the full scope: repair, replacement, inspection, and the specialized tile work that Arcadia’s luxury rebuilds demand.
Founded in 2000, Mercer Roofing operates as part of the Threshold Group family of home-service companies. Each location is independently owned and operated, and our Arcadia crews answer to our local lead, Grant Whitlock. The Threshold Verified standard is contractual, not aspirational: background checks, identity verification, uniformed technicians, photo ID at the door. That’s the baseline every visit starts from.
Free Roof Estimate in Arcadia
A Free Roof Estimate in Arcadia means one of our technicians walks every slope, checks the valleys and flashings, photographs what’s failing, and then sits down with you to explain what’s urgent, what can wait, and what it’ll cost. Written price before any work starts. Always. No verbal ballparks that morph later. No “we’ll see what we find” pricing on a standard repair.
What the estimate covers
We inspect the roof planes, valleys, penetrations, drip edge, and gutters. We check for lifted tiles, saturated underlayment, rusted flashing, and the organic debris that packs into north Arcadia’s tile valleys faster than anywhere else in the SGV. The estimate includes line-item pricing for each repair, so you know exactly what each dollar buys.
When to schedule it
If your home is a 1950s or 60s ranch still carrying original concrete tile or aging three-tab asphalt, schedule an estimate before the next Santa Ana season. Those wind events channel directly through the mountain front and lift exposed north-facing tiles. Catching the loose ones early costs hundreds. Waiting until water gets to the decking costs thousands.
Roofing Contractor in Arcadia
A Roofing Contractor in Arcadia has to handle two very different jobs in the same city. The first is preserving aging ranch homes, many from the 1940s through 1970s, with low-slope roofs and materials long past their service life. The second is executing the complex multi-valley tile rooflines on the large custom spec homes replacing those ranches. Few crews are equipped for both. We are.
Repair and preservation on older homes
Most older Arcadia ranches have low-slope roofs with concrete tile or three-tab asphalt over original underlayment. The underlayment is usually the failure point, not the tile. We flag it during inspection. We replace it before it lets water through to the decking. That’s the repair that prevents the $18,000 reroof.
New-construction tile and architectural shingle work
Arcadia’s rebuild boom produces some of the most intricate residential rooflines in the San Gabriel Valley. Multiple hips, steep pitches, decorative ridges, concrete and clay tile in bespoke patterns. We install and repair using manufacturer-recognized materials from GAF, CertainTeed, and Owens Corning, with crews who do this specific work regularly, not occasionally.
Trusted Brands We Service in Arcadia
We install and repair shingle and tile systems from GAF, CertainTeed, Owens Corning, and IKO, among others. For Arcadia’s specific mix of aging tile ranches and new architectural shingle installs, we keep a consistent local inventory of the materials and flashing we use most. That means faster turnaround on repairs without waiting for a distributor order. If your existing roof is a brand we install, we can match it. If it’s a discontinued line, we’ll tell you plainly that a patch won’t match, and why a full replacement might honestly be the better decision.
Common Roofing Company Problems We See in Arcadia Homes
- Debris-packed valleys on north Arcadia slopes. Pine needles, seed pods, and mountain silt wash off the San Gabriel front and fill tile valleys and gutters far faster than in flatland cities. The trapped moisture degrades underlayment years early. This is the most common failure mode we find in the foothill-adjacent neighborhoods, and groundskeepers rarely catch it.
- Wind-lifted tile on exposed north-facing slopes. Santa Ana winds channel through the mountain front and peel up tile edges on custom homes built along ridges and open slopes. The tile often looks fine from the street. The lifted sections hide under the overlap, and the first sign is usually water on the ceiling.
- Saturated underlayment under aging three-tab shingles. The 1950s and 60s ranches south of Huntington Drive largely still carry original or second-generation three-tab over felt that’s long past its service window. The shingles can look passable while the underlayment underneath is wicking moisture into the decking.
- Improperly cut valleys on new spec-home tile roofs. Arcadia rebuilds push very fast schedules, and generalist crews sometimes shortcut valley flashing to keep pace. The result is a cut valley that leaks at the first heavy rain, often on a roof that’s less than three years old. We get called to correct these more often than we’d like.
Pricing for Roofing Company in Arcadia, CA
Real numbers so you can plan. A targeted roof repair in Arcadia typically runs $450 to $1,600. A full reroof on a standard 1950s ranch ranges from $14,000 to $28,000 depending on decking condition, material choice, and whether we find underlayment saturation once the old layers come off. Complex tile work on a larger custom estate can run $35,000 to $80,000 or more. The single biggest variable in Arcadia is what we find under the surface: saturated underlayment, rusted drip edge, hidden decking rot. That’s why we inspect first and price in writing, with allowances built into the contract and every change order approved in writing before work proceeds. Call (743) 200-8347 for a free estimate and an exact number for your roof.
Because north Arcadia sits at the base of the San Gabriel Mountains, organic debris like pine needles, seed pods, and mountain silt washes off the front and packs into tile valleys and gutters far faster than in flatland SGV cities. Trapped moisture degrades underlayment years ahead of schedule. Frequent valley cleaning and early underlayment replacement are routine parts of roofing work here, not afterthoughts. If your roof has tile valleys you can’t see into from the ground, that debris is likely already doing its work. We flag it during every inspection we perform in Arcadia. It’s one of the first things we check, because we know the pattern.
We were called to a 1960s ranch on Camino Real Avenue in Arcadia where a reroof quote had ballooned after the owner got a low bid from a generalist crew. When we opened the roof, we found three-tab asphalt shingles over saturated underlayment, rusted drip edge, and cracked concrete tile on a north-facing slope that had been lifted by Santa Ana winds. We replaced the underlayment, installed ice and water shield in the valleys, reset the tile with new flashing, and documented every extra cost. Written approval before proceeding, so the final invoice matched the revised contract exactly.
We Also Serve Cities Near Arcadia
Our crews cover the surrounding San Gabriel Valley, including Monrovia, Temple City, Sierra Madre, and San Gabriel. If you’re in one of those cities or anywhere else nearby, the same Arcadia standard of Threshold Verified technicians applies. Background-checked, photo-badged, and on time.
Serving Arcadia, CA - Our Local Coverage Area
We’re based in the Arcadia 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 Arcadia
Because the San Gabriel Mountain front directly above north Arcadia sheds pine needles, seed pods, and silt onto roofs below, and that debris packs into tile valleys and gutters far faster than in flatland SGV cities. The trapped moisture degrades underlayment years ahead of schedule. In Arcadia, valley cleaning is a routine maintenance item, not an optional extra. Call (743) 200-8347 and we’ll check yours.
Most likely: saturated or failing underlayment under the tile, rusted drip edge, and possibly hidden decking rot where water has been wicking for years. The tile itself is often still serviceable. The underlayment underneath is not. We inspect the deck before quoting, and any surprise we find gets a written change order before work proceeds. No surprise invoices.
We price the known code-required upgrades into the original contract. Things like fastener patterns, underlayment class, and ventilation requirements. When the roof comes off and we find something the permit requires that wasn’t visible before, we document it, price it, and get your written approval before touching it. The permit is pulled. The inspection is passed. No change orders hit your invoice without your signature first.
We install GAF, CertainTeed, Owens Corning, and IKO, among others. For the intricate tile and architectural shingle work on Arcadia’s new custom homes, we favor manufacturer-recognized systems with full warranty backing. We’ll tell you which brand fits your roof and budget, and why.
Yes. Portions of north Arcadia fall within Los Angeles County’s Very High Fire Hazard Severity Zone, and Class A fire-rated assemblies are a code and insurance requirement there, not an optional upgrade. We install Class A rated tile, shingle, and underlayment systems that meet the zone requirements. Call (743) 200-8347 for a free estimate and we’ll confirm what your specific address requires.
Written by Grant Whitlock, Owner at Mercer Roofing, serving Arcadia and the San Gabriel Valley. Founded in 2000, part of the Threshold Group family.






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