Free roof inspection with deck photos before we talk money - GAF and Owens Corning certified installation
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AfterFast, Reliable Roof Replacement Across San Mateo
A full roof replacement in San Mateo typically runs $14,000 to $28,000 for a standard single-family home using architectural asphalt shingles, with most projects completing in 5 to 10 working days once materials arrive. The final number depends on square footage, tear-off depth, decking condition, and whether you choose standard or premium shingle lines. We scope every San Mateo job section by section so you see exactly what you’re paying for before work starts. Call (325) 246-5075 for a written line-item estimate.
San Mateo roofs take a beating from both sides: marine-layer moisture rolling off the Santa Cruz Mountains to the west, and dry bay-side sun exposure to the east. A roof here isn’t one uniform surface, and neither should be its estimate. Our crews work throughout San Mateo every week, from the Hillsdale area to Shoreview, Baywood, and the Aragon neighborhoods. When we give you a price, it reflects the actual condition of your roof planes, not a generic per-square number.
Why Crestview Roofing Is San Mateo’s Preferred Roof Replacement Company
Dylan Pace started Crestview Roofing with a simple rule: write the price down before any work starts, and stand behind it. That rule became The Relay Visibility Guarantee, and it’s why San Mateo homeowners call us after a bad bid experience with another contractor. Every job includes a written price, photo documentation before and after, a live trackable arrival time, and a digital invoice sent by text. No door-knock renegotiation. No “we found unexpected damage” conversation that doubles the bill.
Being part of the Relay Home Co. family means our process is standardized across every crew that shows up in San Mateo. Technicians are background-checked and uniformed. You’ll know who’s arriving before they pull into your driveway. If a covered repair fails within 365 days, we fix it at no charge under our 365-Day Done Right Promise. A live person answers the phone 24/7 at (325) 246-5075. No voicemail loops, no waiting until Monday.
We install materials from Atlas, GAF, and Tamko, which means manufacturer-backed warranties sit on top of our own written guarantee. For San Mateo’s older housing stock, that matters. A 1960s ranch off El Camino Real or a hillside home near Highlands Park has different decking and framing realities than a new build in Bay Meadows. We scope for that.
Asphalt Shingle Roof Replacement in San Mateo
Asphalt Shingle Roof Replacement in San Mateo is the most common full re-roof we do, and it typically runs $12,000 to $22,000 depending on roof size, tear-off depth, and shingle grade. Architectural shingles from GAF or Atlas are the default choice for most San Mateo homes, offering a 30-year to lifetime material warranty plus better wind resistance than older 3-tab. We tear off the existing roof down to the decking, inspect for rot, replace what’s bad, then lay new underlayment, starter strip, shingles, and ridge vent.
Architectural Shingle System
We recommend architectural shingles for most San Mateo homes because they handle the city’s mixed exposure better. The dimensional profile sheds water faster at the eaves and valleys where marine-layer condensation collects. Installed with ice and water shield in the valleys and at penetrations, this system holds up against the damp that older 3-tab roofs absorb within a few years.
Decking and Underlayment Scope
San Mateo’s housing stock runs heavily to 1940s through 1970s construction, and a surprising number of those roofs still sit on original skip-sheathing or 1×6 planks. We inspect every square of decking during tear-off. The decking replacement line is the single biggest swing item on a San Mateo re-roof quote, and we price it per sheet so you’re not paying for lumber you don’t need.
New Roof Installation in San Mateo
New Roof Installation in San Mateo applies to additions, ADUs, and full teardown rebuilds, and it typically runs $18,000 to $35,000 depending on roof design, pitch, and material selection. Unlike a tear-off re-roof, new construction starts from bare framing, which means we control every layer: decking, underlayment, flashing, shingles or flat-roof membrane, and ventilation. For San Mateo homeowners adding a second story or converting a garage, we coordinate with your general contractor or work directly with your framing crew.
Flat and Low-Slope Sections
Many San Mateo homes, especially mid-century ranches and modern additions, include flat or low-slope roof sections. Those areas need a different system entirely, typically modified bitumen or TPO membrane rather than shingles. We price those sections separately because the labor and material math is different.
Permit and Inspection Coordination
New roof installation in San Mateo requires a city building permit and a final inspection. We pull the permit, schedule the inspection, and make sure the work passes on the first visit. You’ll get the permit number and the inspection result in writing. If the inspector flags anything, we fix it at no charge under our 365-Day Done Right Promise.
Trusted Brands We Service in San Mateo
We install and repair roofing systems using materials from GAF, Atlas, Tamko, and Boral, so the shingle or tile on your San Mateo roof is backed by the manufacturer’s own warranty. For San Mateo homeowners, that matters because coastal-adjacent air can accelerate granule loss on cheaper shingle lines. We keep a local stock of common components, underlayment, and flashing materials so replacement jobs don’t stall waiting on a distributor. When you call us about a roof problem in San Mateo, we can usually quote it from the materials list without a second visit.
Common Roof Replacement Problems We See in San Mateo Homes
- Decking rot hidden under old shingles. San Mateo’s marine-layer mornings push moisture into roofs that never fully dry before the afternoon sun bakes them. That cycle rots plywood and plank decking at the eaves and in shaded sections, and it only shows up after tear-off. We price decking replacement per sheet so you see the real line item before signing.
- Skip-sheathing and 3-tab failure on 1950s ranches. Homes off De Anza Boulevard, Palm Avenue, and throughout the Hillsdale neighborhoods often still have original 3-tab shingles over 1x skip-sheathing. The gaps between planks create uneven nail patterns, and the shingles fail from nail pops and wind lift. We bridge or replace the sheathing as needed.
- Missing ice and water shield in valleys. San Mateo never sees snow, but the city’s damp air finds valleys, chimneys, and vent penetrations within two or three seasons if those seams aren’t sealed with peel-and-stick membrane. Skipping that layer to hold a bid down is a known local shortcut. We include it on every re-roof, no exceptions.
- Reused flashing and drip edge. Some contractors reuse old flashing at chimneys, walls, and fascia to save money. In San Mateo’s older homes, that flashing is often corroded from decades of coastal moisture. We replace all flashing and drip edge on every full roof replacement and show you the before and after photos.
Pricing for Roof Replacement in San Mateo, CA
Here’s what San Mateo homeowners should expect to pay. A standard tear-off and replacement with architectural asphalt shingles runs $14,000 to $22,000 for a 1,500 to 2,000 square foot roof. Larger homes or steep roof pitches push toward $25,000 to $30,000. Flat roof sections, which many older San Mateo homes have, add $8 to $14 per square foot depending on the membrane system. Decking replacement, if needed, runs $75 to $110 per 4×8 sheet. The city building permit for a full re-roof typically adds $400 to $900 depending on project valuation.
Our written estimate breaks all of this out line by line before any work starts. The number on the page is the number on the invoice. Call (325) 246-5075 for a free estimate. We’ll walk the roof, measure the squares, check the decking, and give you a real number on the spot.
We replaced a storm-damaged roof on a 1950s ranch off De Anza Boulevard where the rear slope had failing 3-tab over original skip-sheathing. We tore off to the decking, replaced rotted fascia along the soffit line, laid ice and water shield in the valleys, and set GAF architectural shingles with a starter strip and ridge vent. Because the front slope was still sound, we only re-roofed the rear plane the first year and scheduled the front for spring. The homeowner knew exactly which squares we covered and why the price split.
We Also Serve Cities Near San Mateo
Crestview Roofing provides Roof Replacement services across the mid-Peninsula, including Burlingame, Belmont, Millbrae, and San Carlos. Dispatch and scheduling for San Mateo jobs are coordinated from the brand’s San Francisco Bay Area office, with local crews serving the city directly. If you’re a few minutes outside San Mateo, we still want the call. The same written pricing and 365-Day Done Right Promise apply.
Serving San Mateo, CA – Our Local Coverage Area
We’re based in the San Mateo 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 Roof Replacement in San Mateo
Put the two bids side by side and compare the line items, not the total. The biggest differences in San Mateo bids are usually decking allowance, ice and water shield coverage, flashing replacement, and the shingle brand and line. One bid may include full tear-off, full decking inspection, all new flashing, and peel-and-stick underlayment in valleys. Another may quote a lump-sum square count that excludes decking replacement until “we open it up.” The second bid will balloon once work starts. Our written estimate breaks out every item so you can compare honestly. Call (325) 246-5075 and we’ll show you exactly what a scoped San Mateo estimate looks like.
Yes. San Mateo requires a building permit for any full roof replacement, and the city sends an inspector to verify the underlayment, nailing pattern, flashing, and final system before you receive a certificate of completion. We pull the permit, coordinate the inspection, and put the permit number on your invoice. If the inspector flags something, we correct it under our 365-Day Done Right Promise at no charge. Estimates are free, and the permit fee is listed as a separate line item so you know exactly where that money goes.
We install GAF, Atlas, Tamko, and Boral roofing systems. For most San Mateo re-roofs with architectural asphalt shingles, we recommend GAF Timberline or Atlas Pinnacle lines because their granule adhesion holds up well against the city’s damp mornings and warm afternoons. Boral tiles are an option for homeowners who want a concrete or clay profile. Every brand we install carries a manufacturer warranty, which sits on top of our own one-year workmanship guarantee. Call (325) 246-5075 for a recommendation specific to your roof.
Decking replacement is the one item that can legitimately change the price after tear-off, because you cannot see rotted wood under old shingles from the outside. In San Mateo’s older homes, that’s common. We handle it by pricing decking per sheet in the original estimate, so if rot is found, you already know the unit cost. Nothing else should change the price. Flashing replacement, ice and water shield, underlayment, ventilation, and permit fees are known before we start and listed in writing. If another contractor changes the price for anything other than decking, call us at (325) 246-5075 instead.
Both, and for San Mateo homeowners with roofs where one plane is failing and the other is sound, phasing is a legitimate option. We replaced the rear slope of a 1950s ranch off De Anza Boulevard in San Mateo one year and the front slope the following spring. The estimate covered both planes with separate pricing, so the homeowner knew exactly what each section cost. Phasing isn’t for every roof, because valleys and transitions still have to be flashed correctly, but it can work when one exposure is clearly worse than the other. We’ll tell you honestly if phasing makes sense on your roof. Call (325) 246-5075 to schedule a free estimate.
Get Your San Mateo Roof Replacement Estimate
If you live in San Mateo and your roof is nearing the end of its life, or you saw storm damage after the last wet winter, call Crestview Roofing at (325) 246-5075. We’ll schedule a time that works for you, walk the roof, measure the squares, and give you a written line-item price before any work starts. No pressure, no four-hour windows, no number that changes at the door. That’s the Relay Visibility Guarantee, and it’s how we’ve done every San Mateo job since opening our doors.
Written by Dylan Pace, Owner at Crestview Roofing, serving San Mateo since 2000.