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 Pacifica
Roofing work in Pacifica isn’t like roofing work ten miles inland. The salt air, the fog that sits on your shingles for months, the wind that rips through Linda Mar valley, it all adds up. Most Pacifica homes were built between the 1950s and 1970s, and by now nearly all of them are on a second or third roof. When that roof starts failing, you need a crew that knows what Pacifica’s coastal climate does to decking, flashing, and fasteners. Not a crew learning on your dime.
Mercer Roofing has been handling Pacifica roofs since 2000 as part of the Threshold Group family. Our Roofing Company team works throughout the city, from Linda Mar up through Fairmont and the hillsides around Pedro Point. Call (743) 200-8347 for a free estimate. A live person answers, day or night.
Why Mercer Roofing Is Pacifica’s Preferred Roofing Company
Pacifica homeowners call us for a specific reason: we solve the stranger-at-the-door problem that most roofers ignore. Before any technician sets foot on your property, you get their name and photo sent to you. When they arrive, they’re in a clean, marked uniform with a photo ID badge. They’re background-checked and identity-verified under the Threshold Verified standard, which every independently owned and operated Threshold Group location is contractually held to. That matters in Pacifica, where a lot of residents are home alone during the day or have young kids in the house.
Our reputation in Pacifica is built on the written price. Before any work starts, you have the full number on paper. No change orders, no surprises on the invoice. Every repair comes with a written guarantee, and if that repair fails within 365 days, we come back free and make it right. That’s the 365-Day Done Right Promise, and it’s included with every job. Grant Whitlock leads our team, and he’s the one who set that standard. When Pacifica homeowners ask us what separates Mercer from the other roofing companies they’ve called, the answer is always the same: the name and photo before the visit, the badge at the door, and every price and guarantee in writing before a single nail goes in.
Commercial Roofing in Pacifica
Commercial Roofing in Pacifica carries different demands than residential work. Coastal strip malls along Highway 1, the older retail spaces near Linda Mar Shopping Center, small office buildings in Rockaway Beach, these structures see the same salt-laden air and fog as homes, but with larger roof expanses and foot traffic from HVAC units and venting. When a commercial roof fails in Pacifica, business interruption costs money immediately. Water pooling on a flat commercial roof because of clogged drains or failed seams is a direct threat to inventory, equipment, and the people inside.
Pacifica homeowners don’t always think about commercial roofing, but business owners here know exactly where the weak points are: membrane seams, drain collars, and the flashing around rooftop equipment. Salt air corrodes metal edges quickly on flat roofs, and the near-daily marine fog means membranes stay wet for long stretches. A small seam failure becomes a structural problem faster than anyone expects.
Inspection Before Any Commercial Quote
We won’t quote a Pacifica commercial roof without walking it first. The moisture gets into the insulation layer and stays there. What looks fine on the surface can be saturated underneath. We open up a test section when the owner approves it, document what we find, and write allowances into the contract for decking damage or corroded drain components. Without that, a commercial reroof quote in Pacifica is a guess.
What Commercial Roofing Costs in Pacifica
For a typical low-slope commercial roof in Pacifica, plan on $8 to $12 per square foot for a full tear-off and replacement with a membrane system like TPO or PVC. Smaller repair work, seam sealing, and drain repairs typically run $900 to $2,400. Steeper commercial roof sections or those with heavy equipment loads push toward $14 to $16 per square foot. The salt air here means we always recommend replacing, not reusing, existing metal edge flashing on commercial jobs.
Metal Roof Installation in Pacifica
Metal Roof Installation in Pacifica is increasingly the right call for homeowners who are tired of replacing asphalt shingles every 12 to 18 years. Standing seam and metal panel systems handle the coastal environment here better than almost any other material, assuming they’re installed with marine-grade fasteners and proper underlayment. The salt air that corrodes flashing and nails on asphalt roofs can be managed on metal roofs, but only if the installer uses stainless or coated fasteners rated for coastal exposure. Standard galvanized fasteners fail early in Pacifica’s salt-laden air.
Homeowners in Fairmont and the steeper hillside sections of Pacifica often choose metal for another reason: fire resistance. The dry season comes even to a foggy town, and the hillside chaparral can burn. Metal roofing rated for fire resistance is a serious consideration for those properties. Metal also sheds the marine fog moisture better than asphalt, meaning less moss and algae growth over time.
Coastal Fastener Selection
On Pacifica metal roof installations, we specify stainless steel fasteners and high-grade EPDM or neoprene washers on every penetration. We also install ice and water shield across the full deck, not just at eaves and valleys. In this climate, a metal roof is only as good as what’s underneath it and what’s holding it down. The six-nail pattern logic applies here too: wind uplift on metal panels in Linda Mar and the valley corridors is real, and we over-fasten panels at ridge and eave edges as a standard practice.
What Metal Roof Installation Costs in Pacifica
Standing seam metal roofs in Pacifica typically run $16 to $24 per square foot installed, depending on the panel profile and the complexity of the roofline. Metal shingle systems come in lower, around $12 to $17 per square foot. For a typical 1,800 to 2,200 square foot Pacifica ranch, that’s a total of $28,000 to $52,000 for standing seam. The coastal fastener upgrades and full ice and water shield underlayment add roughly 8 to 12 percent over inland pricing, and that’s money well spent here.
Trusted Brands We Service in Pacifica
Our Pacifica customers don’t need to settle for whatever shingle is on the truck that day. We install and repair GAF and Owens Corning architectural shingles most often in Pacifica’s coastal exposure, and we also work with Atlas and Tamko lines when a homeowner has a specific profile or color in mind. Because we work these brands regularly, our crews know their wind ratings, their fastener requirements, and their warranty documentation. If you have an existing Atlas or CertainTeed roof that needs repair, we can source matching materials through our San Francisco Bay Area supply network quickly, usually within a few days, which keeps Pacifica repairs on schedule.
Common Roofing Problems We See in Pacifica Homes
- Wind-tab failure in Linda Mar and valley corridors. The Pacific wind funnels through Linda Mar valley and tears at roof edges. Even shingles rated to 130 mph fail when installed with the standard 4-nail pattern, which is why our crews use six-nail patterns and high-wind starter strips as the baseline in Pacifica.
- Corroded flashing and drip edge. Salt air eats exposed metal. We regularly pull off flashing on Pacifica homes that’s rusted through at the corners and along the drip edge. If reused, the leak paths come right back within a season. We replace it.
- Hidden decking rot under the shingles. Pacifica’s coastal moisture means roof decking fails quietly. We’ve opened roofs in Fairmont where the shingles looked fine from the ground but the plywood underneath was saturated and delaminating. This is why we never quote a reroof without talking about inspection allowances.
- Moss and algae buildup from persistent fog. The marine layer keeps roof surfaces damp for long stretches even during the dry season. Moss lifts shingle edges, holds water against the deck, and shortens the roof’s life dramatically. In Pacifica, moss control is roof maintenance, not cosmetics.
Pricing for Roofing Company in Pacifica, CA
A typical shingle roof replacement on a Pacifica home runs $11,000 to $18,000 for a 1,800 to 2,200 square foot roof using architectural asphalt shingle materials. Metal roofing, as noted above, starts around $16 per square foot and goes up from there. Roof repair in Pacifica for a specific leak or wind damage runs $650 to $1,400 for most single-point issues, and $1,800 to $3,200 for more involved repairs like replacing a low-slope section or rebuilding a roof edge. Decking replacement when rot is found runs $3 to $5 per square foot, and we write that into the estimate as an allowance so you know the cost before we find it. Every estimate from Mercer Roofing is free, and every quote is a written line-item price before any work starts. Call (743) 200-8347 to schedule yours.
We Also Serve Cities Near Pacifica
Our crews work throughout the northern San Mateo County coast and the peninsula. If you’re in San Bruno, South San Francisco, Millbrae, or Daly City, the same Threshold Verified technicians and the same written-price promise apply. Our Roofing Company in Pacifica team coordinates scheduling for the whole area from our San Francisco Bay Area office.
Serving Pacifica, CA - Our Local Coverage Area
We’re based in the Pacifica 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 Pacifica
Linda Mar sits in a wind funnel. Pacific storm systems push wind through the valley, and roofs here experience sustained uplift and edge tearing that simply doesn’t happen at the same intensity a few miles over the hill in San Bruno or Millbrae. The standard 4-nail installation pattern on 130 mph-rated shingles is not enough here; we see wind-tab failure on roofs installed that way after major storms. That’s why Mercer Roofing uses six-nail patterns and high-wind starter strips as the baseline standard on every Linda Mar roof we touch. Call (743) 200-8347 if you want an inspection before the next storm season.
We typically find three things: decking that’s soft or delaminating from decades of coastal moisture, flashing that’s corroded through from salt air, and low-slope sections that have been pooling water against fascia boards. In Linda Mar, our crew opened a 1960s tract home that had been through two prior roofs and found the original low-slope section pooling water against corroded fascia, plus rusted-through flashing at every penetration. We replaced the failed underlayment with ice and water shield, stripped and refastened the decking, and installed GAF architectural shingles in a six-nail pattern with high-wind starter strips and new ridge vent to handle the valley’s wind funnel. These findings are genuinely common in Pacifica, which is why we write inspection allowances into our contracts before tear-off begins.
Sometimes it does, and homeowners should know that going in. When the roof is open, the inspector sees what’s underneath. In Pacifica, a roof permit can trigger requirements around the existing sheathing thickness, edge nailing patterns, and in some hillside homes, structural connections that weren’t required when the house was built in the 1960s. This is not a reason to avoid the permit, it’s a reason to have a roofer who knows Pacifica’s building department and can walk you through what’s coming. We pull permits on every job that requires one, and we pass inspections on the first visit more often than not because we know what the inspectors in Pacifica look for.
The biggest difference is the roof system itself. Most Pacifica commercial buildings have low-slope or flat roofs with membrane systems, while homes here have pitched asphalt shingle roofs, though some older tract homes have low-slope sections that act more like commercial roofs. Commercial jobs involve more square footage, more penetrations for HVAC and venting, and more drainage management. Our crews are trained for both, and we treat every commercial roof in Pacifica with the same coastal lens: salt-resistant fasteners, full inspection of the insulation layer, and written allowances for anything hidden.
Compare the line items, not the bottom line. One bid may include new flashing and drip edge; the other may not. One may include the six-nail high-wind pattern; the other may use the standard 4-nail. One may include a full tear-off; the other may propose overlaying new shingles on old ones. In Pacifica, given the wind and salt exposure, we recommend full tear-off, new flashing, marine-grade fasteners, and the six-nail pattern every time. If a bid looks cheaper, look for what was left out. Then call (743) 200-8347 and we’ll give you a free written comparison of your bids so you can see exactly what you’re paying for.
Get Your Free Pacifica Roofing Estimate
You don’t need to guess what your roof work will cost, and you don’t need to open your door to someone you can’t verify. Mercer Roofing sends every Pacifica technician’s name and photo before the visit, badges them at the door, and puts every price and guarantee in writing before the first nail is driven. We’ve been doing this in Pacifica since 2000, and we’re not going anywhere. Call (743) 200-8347 now for your free estimate. A live person answers, 24/7.
Written by Grant Whitlock, Owner at Mercer Roofing, serving Pacifica since 2000.