Free roof inspection with deck photos before we talk money - GAF and Owens Corning certified installation
Fast, Reliable Roofing Company Across Montclair
If you need a Roofing Company in Montclair, here’s the honest picture: most roofs in this city work harder than roofs fifteen miles west, and the pricing reflects that. A typical roof repair in Montclair runs $450 – $1,100, and a full architectural shingle re-roof on a 1,400 – 1,800 sq ft Ranch home lands between $11,500 and $16,800 before any decking replacement. Those numbers come from the specific failure modes we see here, which we’ll get into below. Call (743) 200-8347 and we’ll walk your roof with you, put the price in writing, and send the technician’s name and photo before anyone shows up at your door.
Why Mercer Roofing Is Montclair’s Preferred Roofing Company Company
Montclair homeowners tend to be skeptical of roofing companies, and they should be. The city’s housing stock is older, the heat is unforgiving, and plenty of out-of-area crews quote low and cut corners on the details that matter here. We take a different approach. Every Mercer technician who services Montclair is background-checked, identity-verified, and arrives in a clean marked uniform with a photo ID badge at the door. You get the technician’s name and photo before the visit, so the person on your porch is the person you expected.
We’re part of the Threshold Group family, founded in 2000, and held to the Threshold Verified standard on every dispatch. That means the pricing and vetting rules don’t change just because a crew is running late or the job got complicated. The 365-Day Done Right Promise comes with every repair: if the work isn’t right within a year, we come back and make it right. Written price before any work starts. A written guarantee on every repair. No exceptions, no fine print games. Led by Grant Whitlock, our crews know the Inland Empire’s roof assemblies because we work on them every week.
Metal Roof Installation in Montclair
Metal roof installation in Montclair is a serious upgrade for homeowners who are tired of re-roofing every 12 – 15 years because the heat and Santa Ana winds keep eating through asphalt. Montclair’s summer temperatures routinely top 105°F, and metal reflects far more solar gain than even the best architectural shingle, which directly cuts cooling load inside the house. A standing seam or concealed-fastener metal roof on a typical Montclair Ranch runs $18,000 – $32,000 depending on panel profile, roof complexity, and whether we’re tearing off the old shingle layer or going over it. Metal also handles the wind funnel off the San Gabriel foothills far better than 3-tab.
Why Thermal Cycling Favors Metal Here
Montclair’s diurnal swing, blistering afternoons dropping into noticeably cooler desert nights, causes repeated expansion and contraction in every roofing material. Asphalt shingles dry out, crack, and lose granules. Metal panels are engineered to float on their clip system, absorbing that movement without tearing. That’s exactly the failure mechanism we see on Inland Empire roofs, and metal is built for it.
What We Check Before Quoting Metal
Not every Montclair Ranch is a good metal candidate without prep work. If the decking shows water damage or the low-pitch slope is under the panel’s stated minimum, we’ll address it before quoting. We also spec the underlayment for Title 24 cool-roof compliance, so the permit package passes instead of getting kicked back.
Residential Roofing in Montclair
Residential roofing in Montclair means working on post-WWII Ranch tract homes built from the late 1950s through the 1970s, most with low-pitched roofs originally covered in 3-tab asphalt shingles. The shallow slope leaves very little margin for error when flashing and membrane integrity degrade under inland heat. A full residential re-roof on these homes typically runs $11,500 – $16,800 with architectural shingles, and we include a tear-off, new underlayment, drip edge, and ridge vent in that figure. That’s the price we write down before anyone picks up a nail gun.
Ranch Roofs Need a Different Assembly
Low-slope roofs under 4:12 pitch should not get the same installation as a steeper roof in Claremont. We spec ice and water shield in the valleys and along the eaves on nearly every Montclair Ranch re-roof, because these are the first places wind-driven rain gets behind the shingles. We also mechanically fasten ridge caps, which sounds basic, but the number of cement-only caps we pull off of 1960s Montclair homes says otherwise.
Decking Decisions Made Before Work Starts
We inspect the decking during the quote, not after the old shingles are in the dumpster. If the OSB or plywood shows heat-related delamination or water damage, we write the replacement footage into the price. You’ll know the decking cost before we start, with no surprise change order. Grant Whitlock and our crews believe a written price should mean exactly what it says.
Trusted Brands We Service in Montclair
We install and repair the shingle brands homeowners actually ask for, and we keep local stock for Montclair customers so you’re not waiting a week on a warehouse order. We work with GAF, CertainTeed, and Owens Corning architectural lines most often on Montclair re-roofs because their wind ratings and cool-roof color profiles match what the city’s climate and Title 24 permit process require. Each manufacturer’s system includes specific underlayment, starter strip, and ridge components, and we follow those specs rather than mixing materials. That’s how you get the full manufacturer warranty, and it’s how we protect the 365-Day Done Right Promise.
Common Roofing Company Problems We See in Montclair Homes
- Santa Ana wind damage to ridge caps and drip edge. On the northern-facing streets closest to the Pomona Valley foothills, wind events regularly lift or crack cement-only ridge caps installed during the 1960s – 70s building boom. We see this after nearly every major gust season.
- Premature shingle failure from heat and thermal cycling. Montclair’s 105°F+ summers cook asphalt shingles, causing granule loss and cracking that shortens the life of a roof by 8 – 10 years compared to manufacturer ratings written for milder climates.
- Low-slope flashing failures on Ranch tracts. The shallow roof pitch on Montclair’s post-WWII Ranch stock leaves little slope for water to shed, so any degraded flashing or membrane seam quickly becomes a leak point that spreads under the shingle field.
- Title 24 cool-roof misinterpretation on re-roof permits. Crews unfamiliar with San Bernardino County’s specific enforcement treat reflectivity as a paperwork formality. We document the assembly correctly for Montclair permits so the re-roof passes inspection the first time.
Pricing for Roofing Company in Montclair, CA
Here’s what you’ll see on a written quote from us in Montclair. Montclair Roof Repair runs $450 – $1,100 for most flashing, ridge cap, or isolated shingle work. Full re-roof with architectural shingles on a standard Ranch: $11,500 – $16,800, including tear-off, underlayment, drip edge, and ridge vent. Metal roof installation: $18,000 – $32,000. Decking replacement, if needed, adds $2.50 – $3.75 per sq ft of decking actually replaced. Flat roof or tile work prices we scope individually because the existing assembly varies so much. Every one of those numbers gets written down before work starts, and the invoice will not drift from the quote unless we find hidden decking rot and you approve the change first. Call (743) 200-8347 for a free estimate, and we’ll give you the figure on paper.
We Also Serve Cities Near Montclair
Mercer Roofing serves Roofing Company customers across the western Inland Empire, including Claremont, Ontario, Pomona, and La Verne. If you’re in one of those cities and need the same badge-at-the-door service and written pricing, call (743) 200-8347 and we’ll schedule the same way.
Serving Montclair, CA - Our Local Coverage Area
We’re based in the Montclair 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 Montclair
Montclair roofs fail 8 – 10 years earlier than manufacturer ratings suggest because the city sits in a Santa Ana wind funnel and regularly sees 105°F+ summer heat. That combination of high UV, thermal cycling, and wind uplift degrades shingles, flashing, and underlayment faster than the climate assumptions behind most shingle warranties. Call (743) 200-8347 to have us look at your roof’s specific condition.
Yes, Title 24 requires cool-roof reflectivity on most re-roofs in Montclair, which means we select compliant architectural shingle colors or metal profiles and document the assembly for the permit. We handle that paperwork as part of the re-roof, not as an extra. Call (743) 200-8347 and we’ll explain what your roof qualifies for.
On a low-pitch Montclair Ranch roof, we check the flashing, underlayment condition, and ridge cap fastening before anything else. Low-slope roofs have little margin for error, so failed membrane seams and cement-only details are the first points of failure. Call (743) 200-8347 to schedule a roof inspection with a written report.
Santa Ana winds funnel through the Pomona Valley and hit Montclair’s northern foothill-facing streets with enough force to lift ridge caps that were set with roofing cement only, no mechanical fasteners, which was common in 1960s – 70s San Bernardino County builds. We mechanically fasten ridge caps and tie drip edge into the fascia on every re-roof. Call (743) 200-8347 if you’ve noticed caps shifting or missing after the last wind event.
A Montclair roofing quote should include a line item for underlayment replacement, drip edge, ridge vent, starter strip, decking inspection results, shingle brand and model, and the total price in writing before work starts. If a quote leaves those out, you’re comparing incomplete bids. Call (743) 200-8347 and we’ll walk you through ours line by line.
We re-roofed a 1962 Ranch on the north side near the foothills after a Santa Ana event cracked ridge caps that had been set with roofing cement only, no mechanical fasteners. We pulled the old 3-tab, inspected the decking, replaced failed underlayment with ice and water shield in the valleys and along the eaves, installed architectural shingles with a starter strip and ridge vent, and tied the new drip edge into the existing fascia. The homeowner now has a wind-rated assembly that should hold up to the next big gust instead of patching cement every spring. That’s the difference between a roof that survives Montclair and a roof that sells a low price. Call (743) 200-8347 for your free estimate, and you’ll meet the technician before they ever climb the ladder.
Written by Grant Whitlock, Owner at Mercer Roofing, serving Montclair and the surrounding Inland Empire cities.






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