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Owens CorningFree roof inspection with deck photos before we talk money - GAF and Owens Corning certified installation
Fast, Reliable Roofing Company Across Alpine
Mercer Roofing Co San Diego is a Roofing Company that replaces and repairs roofs throughout Alpine, from the ranch homes off Arnold Way to the custom estates along South Grade Road. Most Alpine reroofs we quote run $14,500 – $34,000, and repairs typically land between $350 and $2,200. If your cedar shake roof just got red-tagged under Rural Tier 2 fire zoning, you don’t have weeks to shop around. You have about 30 days. Call (619) 810-5520 and we’ll get a written price in your hands fast.
Why Mercer Roofing Co San Diego Is Alpine’s Preferred Roofing Company
Alpine homeowners don’t want a stranger walking their property without knowing exactly who that person is. That’s why every Mercer technician is background-checked, identity-verified, and badged under the Threshold Verified standard, and why we send you the technician’s name and photo before they arrive. When you open the door in Alpine, you know who’s standing on the other side of it.
Our founder, Grant Whitlock, built Mercer Roofing in 2000 as part of the Threshold Group family, with one rule: written proof before any work starts. That means a written price, a written guarantee on every repair, and a 365-Day Done Right Promise that says if it isn’t right within a year, we make it right. Alpine homeowners hear that and stop worrying about what happens after the last truck leaves.
We answer the phone 24/7 with a live person. When a Santa Ana wind tears a ridge vent loose at 2 a.m. on Victoria Park Terrace, you won’t get a voicemail. You’ll get Grant’s team, scheduling a local crew to Alpine the same day.
Styles & brands we work with
Free Roof Estimate in Alpine
A Free Roof Estimate in Alpine is where every Mercer job begins, and it’s exactly what it sounds like: we come out, we look at your roof, and we hand you a written price before any work is authorized. On an Alpine reroof, that estimate includes walking the decking from the attic side where possible, checking the flashing at every skylight and chimney, and noting the roof square count so we can price the job accurately the first time. Most Alpine estimates take 45 – 90 minutes, depending on the pitch and whether we’re inspecting a single story ranch or a two-story mountain craftsman.
What the Estimate Covers
We measure the roof, document the existing material, and look for the failure points Alpine homes are known for: rotted decking under old cedar shake, dried-out sealant at valleys, and gap-toothed venting that lets wind peel back the ridge. You get a line-item price with the exact shingle brand and the decking allowance written in. No vague “to be determined” language.
Why the Inspection Matters First
Alpine’s 1970s and 80s ranch homes often hide rotted plywood beneath cedar shake that looked fine from the ground. A quote that skips the attic walk-through is a quote that will change once the tear-off starts. We’d rather spend an extra 20 minutes on the front end than surprise you with a change order later.
Roofing Contractor in Alpine
A Roofing Contractor in Alpine has to know the difference between a standard reroof and one that lives under San Diego County’s wildland-urban interface codes. We do. Mercer Roofing Co San Diego handles roof installation and repair across Alpine, including the Rural Tier 2 requirements that don’t apply in El Cajon or Lakeside. When a legacy cedar shake roof gets red-tagged, the county gives you roughly 30 days to complete a Class A reroof. That timeline changes how we schedule, how we order materials, and how we coordinate with the Alpine Fire Safe Council’s vegetation clearance rules.
Roofing Contractor’s Role in Red-Tag Work
After a red tag, the clock starts. We pull the permit, verify the roof perimeter meets fire marshal clearance, and stage materials so the tear-off and re-sheathing happen in sequence without idle days. Aluminum or composite Class A shingles go on, the fire marshal signs off, and you’re legal again. We’ve shepherded Alpine homeowners through this timeline more times than we can count.
Working With Alpine’s Building Styles
The steep mountain-craftsman pitches that look so right on Alpine’s hillsides are unforgiving to sloppy flashing. A chimney or skylight with a six-inch gap from the ridge will leak after the first winter storm if the step flashing isn’t cut correctly. Our crews walk those transitions with the homeowner during the estimate so the written price reflects the real scope.
Trusted Brands We Service in Alpine
We install and repair GAF, CertainTeed, Owens Corning, IKO, Atlas, and Tamko shingle systems, and we stock the most common Alpine repair materials locally so we’re not waiting on a distributor in San Diego when your ridge cap gives out. That means faster turnaround on the torch-down and composition repairs Alpine homeowners call about most. Ask us which manufacturer fits your roof’s pitch and exposure, and we’ll tell you straight.
Common Roofing Company Problems We See in Alpine Homes
- Red-tagged cedar shake. Alpine’s Rural Tier 2 fire zoning forces a 30-day reroof deadline on legacy shake roofs. That’s not a suggestion, and it requires a Class A assembly plus vegetation clearance the fire marshal checks on final inspection.
- Wind-uplift tears on torch-down ridges. On Victoria Park Terrace and South Grade Road, older custom homes with gap-toothed attic venting let Santa Ana winds get under the membrane and peel it back at the ridgeline. The only real fix is stripping the failed material and rebuilding the venting correctly.
- Rotted decking under old shake. 1970s and 80s Alpine ranches often have plywood so dry it won’t hold a nail pattern. That’s why we price decking replacement as a written allowance, not a surprise.
- Missing ice and water shield at valleys. Alpine sits near 2,000 feet, and occasional snowmelt finds every gap where underlayment was skipped at a valley or eave. On a steep pitch, that leak travels fast and shows up on the ceiling before you realize anything’s wrong.
See the difference
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AfterPricing for Roofing Company in Alpine, CA
A full reroof in Alpine typically runs $14,500 – $34,000 depending on square count, pitch, and whether decking replacement is needed. A standard architectural shingle reroof on a 1970s ranch lands around $16,000 – $22,000. Roof repairs in Alpine usually fall between $350 and $2,200, with ridge cap resecuring on the lower end and full valley rebuilds with new ice and water shield on the higher end. Torch-down replacement on low-slope sections runs $8 – $12 per square foot. The number we quote you is the number you pay. Written price, every time. Call (619) 810-5520 for a free estimate and a line-item price you can hold us to.
We Also Serve Cities Near Alpine
Our crews work throughout Alpine and the surrounding communities, including El Cajon, Santee, Bonita, and National City. If you’re on the edge of Alpine and wondering whether we cover your street, call (619) 810-5520. Odds are, there’s a Mercer truck nearby this week.
Serving Alpine, CA - Our Local Coverage Area
We’re based in the Alpine 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 Alpine
It means once the county red-tags your cedar shake under Rural Tier 2 fire zoning, you have roughly 30 days to complete a Class A reroof. That includes pulling the permit, replacing any rotted decking, installing a Class A assembly, and passing the fire marshal’s vegetation clearance inspection. Mercer Roofing Co San Diego coordinates all of that so the deadline doesn’t become an emergency on day 28. Call (619) 810-5520 and we’ll tell you exactly where your property stands.
Most 1970s Alpine ranches on Arnold Way and the surrounding lots run 22 – 32 squares, depending on the footprint and whether there’s an attached garage or a covered patio. Larger custom estates on South Grade Road can push past 40 squares. The square count drives your material and labor price, so we measure it precisely during the free estimate.
Yes, you do. Alpine sits near 2,000 feet of elevation, and the snowmelt that follows even a light storm will find any gap at a valley or eave. Ice and water shield is code-required at eaves in many Alpine zones, and we install it at every valley regardless, because the cost is small compared to the water damage a missed strip causes. We write it into every Alpine reroof quote.
The culprit is usually gap-toothed attic venting that lets Santa Ana winds pressurize the attic and lift the membrane at the ridge. On Victoria Park Terrace, we stripped a torch-down ridge that had peeled back three times, found exactly that condition, and rebuilt it with new decking, baffled ridge venting, and GAF Timberline HDZ architectural shingles. The homeowner hasn’t heard so much as a rattle since.
We write a decking allowance into every Alpine reroof contract, so you know the per-sheet replacement price before we ever tear off the old material. If we find rotted plywood or framing damage, we photograph it, show it to you, and get written approval before we replace a single board. The price is fixed to the allowance rate. No open-ended change orders.
Call Mercer Roofing Co San Diego for Your Alpine Roof
If your Alpine roof needs repair, replacement, or just a second set of eyes before fire season, call (619) 810-5520. You’ll speak with a live person who can schedule a free estimate, walk you through the red-tag timeline if you’re under one, and put a written price in your hands. Every technician who comes to your Alpine home is background-checked, photo-badged, and introduced to you by name before they arrive. That’s the Mercer way, and it’s been our standard since 2000.
Written by Grant Whitlock, Owner at Mercer Roofing Co San Diego, serving Alpine since 2000.