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 Pomona
If you’re looking for a Roofing Company that shows up when it says it will, with a name and a face you already know, we should talk. Mercer Roofing serves Pomona homeowners with roof repair, replacement, inspection, and maintenance, and every job starts with a written price before any work begins. You’ll also get a 365-Day Done Right Promise on every repair, in writing. Call (743) 200-8347 and a live person answers, any hour.
Pomona is not an easy climate for a roof. The inland heat pocket at the eastern end of the San Gabriel Valley pushes summer temperatures past 105°F, and the Santa Ana winds that funnel through the passes nearby lift shingles and ridge caps every fall. Homes here need a roofing contractor who knows what that does to clay tile mortar, asphalt shingles, flashing, and underlayment. That’s the kind of work we do.
Why Mercer Roofing Is Pomona’s Preferred Roofing Company
Pomona homeowners call us because we solve the problem most roofers pretend doesn’t exist: the stranger-at-the-door risk. Before our technician arrives, you get their name and photo sent to you. They show up in a clean, marked uniform and present a photo ID badge at the door. That’s the Threshold Verified standard, and every Mercer technician is held to it. If you’re home alone, have young kids, or just want proof of who’s at your door, that detail matters more than any brochure line.
We’re not new at this. Mercer Roofing was founded in 2000 and is part of the Threshold Group family of home-service companies. Each location is independently owned and operated, but every one is contractually held to the same vetting and quality framework. Locally, our crews know the difference between a Craftsman bungalow roof near Lincoln Park and a 1960s tract home off Garey Avenue. That local familiarity is not a slogan. It changes how we quote, what we stock, and how fast the work gets done right.
Residential Roofing in Pomona
Residential Roofing in Pomona means working on homes that fall into two broad groups: 1910s to 1940s Craftsman and Spanish Colonial Revival builds with original clay tile, and 1950s to 1960s tract homes with composition shingles that are well past their service life. Both need a contractor who knows the difference. A typical roof replacement in Pomona runs $9,500 to $18,000 depending on square count, pitch, and the materials you choose. A repair usually lands between $350 and $1,400. Those are real ranges for this market, not national averages.
Clay Tile Mortar Re-Bedding
On the original clay-tile Spanish Colonial homes concentrated in the Lincoln Park Historic District and downtown-adjacent blocks, ridge and hip tiles are set in a mortar bed. Not foam, not screws. When a Santa Ana wind event rattles the caps loose, the correct repair is a mortar re-bed. Contractors who show up expecting a modern foam-set system routinely underquote the labor involved. We re-bed the caps properly, because that’s the only way they stay put through the next wind season.
Full Roof Replacement
When a Pomona roof has reached the end of its service life, the right replacement starts with a full inspection of the decking, underlayment, and flashing, not just the shingles. Multi-layered composition re-roofs are common in Pomona, and tearing off old layers reveals what’s underneath. We never start without a written line-item quote, and we pull permits and pass inspections before we consider the job finished. GAF, CertainTeed, and Owens Corning shingles are all in our local supply chain, so materials don’t hold up your schedule.
Roof Maintenance in Pomona
Roof Maintenance in Pomona is not optional if you want to avoid a five-figure surprise. The same heat that cracks tile mortar also cooks underlayment, and the same Santa Ana winds that lift ridge caps also loosen flashing and drip edge. A typical maintenance visit in Pomona runs $250 to $600, and it should include a full visual inspection, mortar cap checks, fastener checks, flashing inspection, and a written report with photos. Caught early, a $400 repair. Caught late, a $4,000 one.
Heat Pocket Underlayment Checks
Pomona’s inland position means roofs here see more thermal expansion-contraction cycles in a single year than a home in Long Beach sees in several. That cycling splits flashings, blisters low-grade asphalt shingles, and degrades underlayment long before the shingles look worn. Our maintenance visits include a targeted check of valley underlayment and penetration flashing, the exact points that fail first in this climate.
Post-Santa Ana Wind Walk
After the fall winds die down, we walk the ridge line, hips, and eaves. Loose caps, lifted shingles, pulled drip edge nails, and cracked tile mortar are the typical finds on a Pomona roof. We document everything with photos and give you a written repair quote. If you don’t need any work yet, you get a clear report that says so. We don’t invent problems to make a sale.
Trusted Brands We Service in Pomona
We install and repair roofs using manufacturer-recognized shingle brands including GAF, CertainTeed, and Owens Corning, and we work with IKO products when they’re the right fit for the home and the budget. For Pomona’s older tile roofs, we’re experienced with matching and re-bedding original clay mission tile. Because we service Pomona regularly, common parts and materials for these brands are stocked locally, which shortens turnaround on repairs. No waiting weeks on a special order while a leak spreads across your ceiling.
Common Roofing Company Problems We See in Pomona Homes
- Mortar-bedded ridge and hip tile failures on Lincoln Park clay-tile roofs. Original mortar beds crack under Pomona’s heat, then Santa Ana winds walk the caps loose. The fix is a mortar re-bed, not a fastener swap, and it must be bid that way.
- Low-grade electro-plated fasteners rusting out years early. Standard galvanized hardware can’t hold up to the thermal cycling and dry wind exposure in Pomona. We specify stainless or hot-dip hardware on exposed flashings and drip edge, which is the coastal-spec approach applied to an inland heat pocket.
- Blisters on composition shingles from under-ventilated attics. The heat pocket that pushes Pomona summers past 105°F cooks the underlayment from below when ridge and soffit ventilation is undersized. Blistered shingles inside a decade are the telltale sign.
- Valley and flashing failures after wind seasons. Trimming the spec on drip edge and ice and water shield at penetrations and valleys saves money on the front end. After the next wind season, the leak shows up and the repair costs more than the original savings.
Pricing for Roofing Company in Pomona, CA
Here’s what you should expect to pay in this market. Minor roof repairs in Pomona: $350 to $1,400. A full roof replacement on a standard 1,500 to 2,200 square foot home: $9,500 to $18,000. Clay tile re-bedding on a Lincoln Park Spanish Colonial: $800 to $2,500 depending on linear feet of ridge and hip. Roof inspections: $250 to $600. Maintenance visits: $250 to $600. What moves the number is square count, pitch, existing layers, and the hardware spec. The cheap inland-spec bid that uses electro-plated fasteners and skips proper underlayment will cost more within a decade. We write the line-item price before work starts, and it doesn’t change. Call (743) 200-8347 for a free estimate.
We Also Serve Cities Near Pomona
Beyond Pomona, our crews cover Diamond Bar, Montclair, Chino Hills, and Claremont. If you’re in one of those cities and dealing with wind damage, tile mortar cracks, or an aging composition roof, the same written-price promise and Threshold Verified vetting applies. For more about how we work across the broader area, see our Roofing Company in Pomona coverage details. One call at (743) 200-8347 connects you to a live person who can schedule your free estimate.
Serving Pomona, CA - Our Local Coverage Area
We’re based in the Pomona 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 Pomona
Because original clay-tile roofs on Pomona’s older Spanish Colonial homes use mortar-bedded ridge and hip tiles, not foam-set or mechanically fastened systems, and re-bedding mortar is labor-intensive work. The foam-set quote leaves that labor out, which is why it comes in lower. When the caps fail again after the next Santa Ana wind event, you pay for the proper re-bed anyway. Call (743) 200-8347 for an exact quote, and we’ll walk you through what’s actually on your ridge line.
Stainless steel and hot-dip galvanized fasteners, not standard electro-plated hardware. Pomona’s thermal cycling and dry wind exposure cause standard fasteners to rust and back out years ahead of schedule. We specify the better hardware on exposed flashing, drip edge, and tile attachments. It costs more up front and costs less over a decade.
A typical Pomona home between 1,500 and 2,200 square feet has a roof area of roughly 18 to 28 squares, depending on pitch and overhangs. A written quote that doesn’t state the square count is not a quote; it’s an opening number. We write the square count and the line-item cost per square on every estimate. Call (743) 200-8347 and we’ll measure it properly, for free.
Yes. Pomona sits in an inland heat pocket at the eastern end of the San Gabriel Valley, where summer temperatures routinely exceed 105°F and thermal expansion-contraction cycles are more extreme. That cracks tile mortar, splits flashings, and blisters low-grade asphalt shingles faster than the cooler marine-influenced cities just 15 miles west. Proactive inspection here is not a luxury; it’s the only way to catch failures before they leak into your ceiling.
A Mercer Roofing maintenance visit in Pomona checks the ridge and hip caps for loose mortar, the underlayment at valleys and penetrations, flashing condition, drip edge fasteners, and the overall shingle or tile surface. You get a written report with photos and a repair quote if anything needs work. If nothing does, you get a clean bill. Estimates are free; call (743) 200-8347 to schedule yours.
We were called out to a 1923 Spanish Colonial off Lincoln Avenue after a fall Santa Ana wind event walked a run of ridge caps loose and left them hanging over the eave. Our crew pulled the loose mortar-bedded caps, reset them on a fresh bed, replaced the rusted original flashing at the fireplace penetration, and re-seated the drip edge where the old nails had pulled. Because the same heat pocket that cracks the mortar also cooks the underlayment, we scanned the whole square count before we left. The owner’s second repair call that season was a blistered valley, not wind.
If you live in Pomona and you want a roofing company that knows your neighborhood’s tile mortar, your heat pocket, and your wind season, call (743) 200-8347. The person who answers is a real human being. The technician who arrives wears a photo ID badge and matches the photo we sent you. And the price you’re quoted is the price you pay.
Written by Grant Whitlock, Owner at Mercer Roofing.