Free roof inspection with deck photos before we talk money - GAF and Owens Corning certified installation
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Before
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AfterFast, Reliable Roof Replacement Across San Marcos
A full roof replacement in San Marcos runs $14,000-$28,000 for most single-family homes, with concrete tile re-underlayment projects landing between $9,000 and $18,000 depending on square footage and decking condition. Tilehurst Roofing serves every San Marcos neighborhood from San Elijo Hills to Twin Oaks to Discovery Hills, and we give you a written line-item price before any work starts. Call (945) 303-9821 to schedule a free roof assessment.
We know San Marcos roofs because we work on them every week. The 1985-2010 master-planned build-out means entire tracts of nearly identical homes are now hitting the same failure window at the same time. That compression is real, and it changes how we approach every inspection. We’re local enough to know which HOA in San Elijo Hills requires what, and which builder in Twin Oaks used which underlayment spec. That matters when you’re deciding between a repair and a Roof Replacement.
Why Tilehurst Roofing Is San Marcos’s Preferred Roof Replacement Company
Tilehurst Roofing is part of the Kingswell family of roofing companies, founded in 2000. We built our San Marcos presence on a simple promise: show up when we say we will, put the price in writing before the first nail, and stand behind the work for a full year under the 365-Day Done Right Promise. If something isn’t right, we come back and make it right. No charge. No argument.
Homeowners here have told us the same story for years: a contractor no-showed, or changed the price at the door, or finished a repair that leaked again in a month. That’s exactly the experience we built Tilehurst to eliminate. Every crew member is background-checked and uniformed. Every repair gets a written guarantee before the crew leaves the property, not mailed later. And when you call, a live person answers. Twenty-four hours a day, seven days a week. Even on a Sunday evening in July when your ridge cap just blew loose during a Santa Ana event.
We work across San Marcos daily. From the steep grades off Deer Springs Road to the newer infill around the Cal State San Marcos corridor, our crews know the housing stock, the soil movement patterns, and the wind channels. That local knowledge shows up in better inspections and more accurate pricing.
Roof Installation in San Marcos
Roof installation in San Marcos means one of two things: a complete tear-off and rebuild, or a new roof on a newly constructed home. The tear-off route applies to most homes built before 2010 that are now reaching the end of their original underlayment life. A full tear-off with new asphalt architectural shingles on a 2,200-square-foot San Marcos home typically runs $16,000-$22,000. New construction roofing, where we work from bare decking up, runs $8-$12 per square foot depending on material.
The first sentence of this section is deliberate: “Roof installation” is what we call the job when we’re building a roof system from scratch: decking inspection, underlayment, flashing, drip edge, ridge cap, and the finish material itself. In San Marcos, the most common install we do is actually a re-cover: lifting the existing concrete tile, replacing failed felt underlayment, and re-setting the original tile. That’s because the tile itself usually outlasts the felt by decades.
New Construction Roofing
For new builds in San Marcos, the roof goes on before interior finishes, so sequencing matters. We coordinate with framers and stucco crews to keep the schedule moving. The written price still applies to new construction. No change orders at the end.
Underlayment-Replacement Installations
This is the dominant roof project in San Marcos right now. We lift the concrete tile, inspect the decking, replace the failed felt with a modern synthetic underlayment, and re-bed the tile. Homeowners keep their builder tile, get a documented Class A assembly, and avoid the cost of a full tear-off.
Roof Replacement Contractor in San Marcos
A roof replacement contractor in San Marcos should be able to quote you a concrete tile re-underlayment without trying to sell you new tile you don’t need. That’s the litmus test. A full tear-off and replacement with asphalt shingles in San Marcos runs $14,000-$28,000. A tile lift-and-relay with new underlayment runs $9,000-$18,000. Tilehurst Roofing gives you that range in writing, with the exact number tied to your roof’s specific measurements, before you commit to anything.
We’re not here to upsell. We’re here to do the job the roof actually needs. That philosophy matters in San Marcos, where thousands of homes built between 1990 and 2005 have visually intact tile over felt that’s already failed. A contractor who doesn’t know the local housing stock might recommend a full replacement when a re-underlayment is the correct fix. That’s a $15,000 difference.
Tile Lift-and-Relay Replacement
We remove the concrete tile, strip the old felt, inspect the decking, install synthetic underlayment with ice-and-water shield at valleys and penetrations, reset the tile, and re-mortar the ridge caps. The tile stays. The water protection is brand new.
Full Tear-Off and Replacement
When decking is compromised or the tile field is genuinely failed, a full tear-off is the right call. We replace damaged decking, install a full new system, and give you a material choice from GAF, CertainTeed, Owens Corning, IKO, Atlas, Tamko, and Boral. You pick the product. We don’t pick for you.
Trusted Brands We Service in San Marcos
Tilehurst Roofing installs and services roofing systems from seven manufacturers: GAF, CertainTeed, Owens Corning, IKO, Atlas, Tamko, and Boral. In San Marcos, we stock local parts for the tile profiles and fastening systems most common in San Elijo Hills and Twin Oaks, which means faster turnaround when your ridge cap mortar fails or a Santa Ana wind event lifts a few tiles. Atlas and Tamko both make Class A fire-rated shingle lines that meet the stricter codes we see on post-Cocos Fire rebuilds near the university corridor. We’ll walk you through which product fits your home’s architecture and your HOA’s requirements, before you pay a dollar.
Common Roof Replacement Problems We See in San Marcos Homes
- Failed felt underlayment under intact tile. The original 30# felt on 1990s-2000s tract homes dries out and cracks in San Marcos’s 95-100°F inland heat, while the tile above still looks fine. We see this every single week in San Elijo Hills and Twin Oaks.
- Santa Ana wind damage to ridge caps and tiles. Wind channeled through the inland valleys lifts tile edges and breaks ridge-cap mortar. If your ridge caps have been re-mortared more than once, that’s a sign the underlayment beneath is also degrading.
- Builder warranty disputes on original roofs. Homeowners who discover a roofing defect near the end of a builder warranty often wait too long to document it. Once the window closes, the claim is dead. We document everything.
- Post-Cocos Fire rebuilds with mismatched materials. Homes rebuilt after the May 2014 fire needed Class A-rated assemblies, but some homeowners cut corners on underlayment. We regularly find newer roofs where the tile is fine but the fire-resistance layer is missing or under-specified.
Pricing for Roof Replacement in San Marcos, CA
Here’s what you should expect to pay in San Marcos, in real dollars. A full tear-off and asphalt shingle replacement on a 2,000-2,500-square-foot home runs $14,000-$28,000. Concrete tile lift-and-relay with new underlayment runs $9,000-$18,000. Flat roof replacement on the low-slope sections common in some San Marcos additions runs $8-$14 per square foot. What moves the number: decking condition, accessibility (steep lots off Deer Springs Road cost more), and whether your HOA requires a specific tile profile. We give you a written, line-item price before any work starts. Call (945) 303-9821 for a free estimate.
We Also Serve Cities Near San Marcos
Tilehurst Roofing crews serve San Marcos and the surrounding North County communities daily, including Vista, Escondido, Carlsbad, and Encinitas. Each city has its own housing stock and climate quirks, but our process never changes: written price first, show up on time, leave the property cleaner than we found it, and put every guarantee in writing. If you’re in one of those neighboring cities, call (945) 303-9821 and ask for the San Marcos dispatch desk.
Serving San Marcos, CA - Our Local Coverage Area
We’re based in the San Marcos 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 Marcos
Maybe not a full replacement, but yes, you almost certainly need a re-underlayment. In San Marcos’s inland heat, the 30# felt under concrete tile fails well before the tile itself shows any wear. We’ve opened up 20-year-old San Elijo Hills roofs where the tile looked brand new but the felt below was cracked and leaching onto the decking. The fix is a lift-and-relay: tile comes off, new synthetic underlayment goes down, tile goes back. Call (945) 303-9821 and we’ll inspect yours and tell you honestly what you need.
No, but only if the original defect is documented inside the warranty window before work starts. If you’re still within your builder’s coverage period, we’ll write up a condition report with photos and a formal scope of work, so you can file the claim properly. That documentation is often the difference between a covered repair and a denied claim. The work itself, done while the claim is pending, does not void anything if it’s completed to manufacturer spec and local code.
Most San Marcos HOAs, especially in San Elijo Hills and Twin Oaks, require architectural review approval before any roofing work that changes the visible material. If you’re keeping the same tile profile, the approval is usually quick. If you’re switching from tile to asphalt shingles, expect a longer review. We’ll provide the material specs, color samples, and installation details your HOA committee will ask for, so the approval doesn’t stall the job.
Yes, and in San Marcos specifically, this isn’t a regulatory footnote. After the May 2014 Cocos Fire burned through the Cal State San Marcos corridor and destroyed over 100 homes, local homeowners became far more proactive about specifying Class A-rated materials. Atlas and Tamko both make Class A shingle lines that meet the stricter codes on post-fire rebuilds. Even if your home isn’t in a rebuild zone, the upgrade typically adds $500-$1,200 to a full replacement and meaningfully improves fire resistance.
Put the scopes side by side, line by line. Underlayment type, decking replacement allowance, drip edge, flashing detail, ridge cap treatment, and warranty terms. In San Marcos, the biggest variable is whether the bid includes ice-and-water shield at valleys and penetrations. A lower bid that skips that layer will cost you thousands in a few summers. Then check the warranty: ours is in writing, says exactly what’s covered for a full year, and includes a free second visit if a repair fails inside the guarantee window. Call (945) 303-9821 and we’ll walk you through any bid comparison, even if you don’t hire us.
Serving San Marcos: The Tilehurst Way
We tore into a 2002 concrete tile roof on a ridge in San Elijo Hills where the tile looked intact. The original 30# felt was cracked and leaching onto the decking. Rather than sell a full tear-off, we replaced the underlayment across all squares, re-set the field tile, added ice-and-water shield in the valleys and at every penetration, and re-mortared the ridge caps that had loosened from years of thermal cycling. The homeowner kept their builder tile, got a documented Class A assembly, and preserved the architectural approval their HOA required. That’s the job, done correctly, for what it actually costs.
Greg Holloway leads the Tilehurst Roofing team serving San Marcos. We answer the phone. We show up. We put the price in writing before any work starts. And we back every job for a year under the 365-Day Done Right Promise. Call (945) 303-9821 to schedule your free estimate, or to ask us about any roof you’re considering buying or replacing in San Marcos.
Written by Greg Holloway, Owner at Tilehurst Roofing, serving San Marcos, CA and the surrounding North County communities.