Mercer Roofing roofing team

Roofers in San Marcos - Free Inspection, Itemized Written Quote

Free roof inspection with photos, then an itemized written price before anything is ordered. Installed by our own licensed crews and backed by a workmanship warranty.

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🛡 Licensed & Insured 📝 Written Fixed-Price Quotes 💲 No Change Orders · Free Estimates
Every visit starts with

Free roof inspection with deck photos before we talk money - GAF and Owens Corning certified installation

Your new roof for as low as $159/month*on approved credit; ask for current terms
Styles & brands we work with

Architectural shingles
Architectural shingles
Metal roofing
Metal roofing
Tile roofing
Tile roofing
GAF
GAF
Owens Corning
Owens Corning
Flat & low-slope
Flat & low-slope

Before & after – our own jobs

Before - Recent ProjectBeforeAfter - Recent ProjectAfter
Recent Project
Before - Full RestorationBeforeAfter - Full RestorationAfter
Full Restoration
Before - Complete UpgradeBeforeAfter - Complete UpgradeAfter
Complete Upgrade

Roofers in San Marcos, CA

Roofing in San Marcos means working with a specific generation of homes: the master-planned boom of the late 1990s through mid-2000s that filled San Elijo Hills and the hills above Twin Oaks Valley Road with concrete tile roofs now reaching the critical 20 – 25 year mark. We regularly find original hot-mopped felt underlayment has dried and cracked beneath tiles that still look fine from the street, catching homeowners off guard with sudden leaks. If you’re seeing water stains or suspect your roof’s age, call (743) 200-8347 and we’ll send a written estimate before any work begins.

Call (743) 200-8347

Why San Marcos Homes Are Different

Sitting 10 – 15 miles inland, San Marcos runs hotter in summer and gets hit harder by Santa Ana wind events than coastal neighbors like Carlsbad or Oceanside. That lack of marine-layer moderation means more aggressive thermal cycling, which accelerates UV breakdown of underlayment and routinely cracks or lifts tiles along ridgelines and in valleys.

The housing stock tells the story. San Elijo Hills and the tracts along Twin Oaks Valley Road are dominated by stucco-and-tile construction from roughly 1988 – 2008, nearly all with concrete tile roofs now in their second or third decade. In these hillside tracts, many fall within Cal Fire’s Very High Fire Hazard Severity Zones, making Class A-rated roofing assemblies legally mandatory on any re-roof and sharply limiting material options in ways most homeowners don’t anticipate until they’re already pricing the job. Older pockets near historic downtown and along Grand Avenue include 1960s – 1970s wood-frame homes with composition shingle roofs that present entirely different aging and code-compliance challenges.

Our Main San Marcos Services

San Marcos homeowners call us most often for these three needs:

Roof Repair in San Marcos

Repair work here often means tracking leaks that originate under intact-looking concrete tiles where the original hot-mopped underlayment has failed. We strip the affected area, replace deteriorated felt with modern synthetic underlayment, and reinstall matching tiles. Every repair carries our written 365-Day Done Right Promise, and we send the technician’s name and photo before they arrive. Roof Repair in San Marcos

Roof Repair in San Marcos

Roofing Company in San Marcos

As a full-service roofing company, we handle inspections, maintenance, leak diagnostics, and complete replacements across San Marcos’s varied housing stock. Our crews are familiar with the specific HOA requirements in communities like San Elijo Hills and the fire-rating mandates that govern hillside tracts. Every technician is background-checked, identity-verified, and Threshold Verified. Roofing Company in San Marcos

Roofing Company in San Marcos

Roof Installation in San Marcos

New roof installations in San Marcos require careful material selection, especially in Very High Fire Hazard Severity Zones where Class A assembly ratings are mandatory. We install GAF, CertainTeed, Owens Corning, Atlas, Tamko, and Boral products, with written pricing provided before any work starts and permits pulled as required. Roof Installation in San Marcos

Roof Installation in San Marcos
Need help today?Fast, friendly service and a no-obligation free estimate.

Call (743) 200-8347

What happens when you call

  1. 1
    A real person answersNo phone trees - you reach a local pro.
  2. 2
    You get an upfront price rangeHonest numbers before anyone is dispatched.
  3. 3
    A background-checked tech heads outLicensed & insured, dispatched right away.
  4. 4
    You approve before work beginsNothing starts until you say go.

Brands We Service in San Marcos

We install and repair using manufacturer-recognized shingle and tile brands: GAF, CertainTeed, Owens Corning, IKO, Atlas, Tamko, and Boral. Common underlayment, flashing, and fastening components are stocked locally to avoid delays on San Marcos jobs. Most standard repairs are completed in a single visit once materials are confirmed. our brands

Pricing for Roofers in San Marcos, CA

Service Typical range in San Marcos
Tile roof leak repair (localized) $450 – $850
Underlayment replacement (section, tile-off) $1,800 – $3,200
Composition shingle repair (small area) $350 – $650
Full concrete tile re-roof (2,000 sq ft) $18,000 – $28,000
Composition shingle re-roof (2,000 sq ft) $12,000 – $18,000
Class A fire-rated upgrade (materials + labor) $2,500 – $4,500 add-on
Skylight repair/replacement (per unit) $650 – $1,200
Valley metal replacement (tile roof) $1,200 – $2,400
Ridge cap repair/replacement (tile) $800 – $1,600
Roof inspection with written report $150 – $250

Prices in San Marcos push toward the higher end when homes sit in Cal Fire hazard zones requiring Class A assemblies, or when steep hillside access complicates material handling. We provide a written, line-item price before any work starts, every time, with no change orders unless you request additional scope.

Neighborhoods We Serve in San Marcos

Our crews work across San Marcos regularly, with dispatch coordinated from our San Diego office. Most appointments are scheduled within a few business days, with emergency leak response prioritized during Santa Ana wind events.

  • San Elijo Hills
  • Twin Oaks Valley
  • Grand Avenue / Historic Downtown
  • Discovery Hills
  • Palomar College area

Service Area – Cities Near San Marcos

We serve homeowners throughout North County San Diego. Our crews regularly work in Vista, CA, Escondido, CA, Carlsbad, CA, and Encinitas, CA, bringing the same Threshold Verified standard and written pricing to each job.

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 Roofers in San Marcos

Ready to get started? Free estimates · Free in-home estimates response in San Marcos
Call (743) 200-8347

What happens when you call

  1. 1
    A real person answersNo phone trees - talk to a local roofing pro.
  2. 2
    You get an upfront price rangeHonest numbers before anyone is dispatched. No surprises.
  3. 3
    We come out and measureLicensed & insured, at a time that suits you - the visit and the quote are both free.
  4. 4
    You get the price in writingLine-itemed, yours to keep, and nothing starts until you say go.

What San Marcos Customers Say

★★★★★ 4.8 from 9+ reviews

"Full tear-off and new shingles on our two-story. They covered the landscaping with tarps and ran a magnet over the yard afterward. Didn't find a single nail."

- Karen V.

"Good roof repair. The crew was a day later than planned because of rain, which I understand, but the scheduling got moved twice. Work itself is clean and has held up."

- Dale T.

"Replaced the ridge cap and drip edge, and fixed a sagging gutter that nobody else mentioned. Fair price."

- Phil N.

How It Works in San Marcos

Getting your roofing handled is simple and fast.

1

Call or Request a Free Estimate

Tell us about your roofing needs and we provide an upfront, transparent quote - no obligation, no hidden fees.

2

Licensed Technician Dispatched

A background-checked, certified technician arrives in San Marcos - typically within 30-60 minutes, with parts stocked on the truck.

3

Problem Solved, Guaranteed

We complete the job to your full satisfaction, backed by our warranty and 100% satisfaction guarantee.

Current Offers

Bring these savings to your next appointment.

Free On-Site Estimate & Written Quote

No obligation. We measure, price the job in writing, and the quote is yours to keep.

Expires Mar 31, 2027
Always

Written Price Before Any Work Starts

Expires Mar 31, 2027
Included

Written Guarantee on Every Repair

Expires Mar 31, 2027
Free

Free Second Visit if the Repair Fails

Expires Mar 31, 2027

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Areas We Serve
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