CertainTeed Roofing Company Nationwide

CertainTeed Roofing Company in San Diego: What to Know First

CertainTeed roof repair and installation in San Diego typically runs $450 – $1,400 for common repairs and $12,000 – $28,000 for a full replacement, depending on which CertainTeed line is on your home and how much decking needs work. We complete most CertainTeed repairs in a single visit, usually within four to six hours of arrival. As an independent CertainTeed service provider, we give you a written price before any work starts, and every repair carries a 365-day written guarantee.

Call (619) 810-5520

This page is for San Diego homeowners who already have CertainTeed shingles or are considering them, and who want a roofing company that knows the brand’s specific failure points, warranty requirements, and installation quirks. If you’re looking at a leak, a lifted shingle, or just want an honest assessment of what’s left on your roof, call us at (619) 810-5520. A live person answers.

How CertainTeed Products Fail – and How We Fix Them

CertainTeed makes good roofing products. But every product line has its weak spots, and after years of working on San Diego homes, we know exactly where to look. Here are the failures we see most often, by series.

• Presidential Shake and Presidential Shake TL: These luxury shingles are thick and heavy, which means they hold heat differently than standard laminate shingles. In San Diego’s coastal sun, we regularly see the adhesive strips fail on south-facing slopes before the shingle itself wears out. The shingle looks fine from the ground, but it’s no longer sealed to the course below it. Wind gets under it, and eventually water does too. Our fix is a hand-seal with a roofing-grade adhesive rated for the weight of the Presidential line, not a generic tube from the hardware store. If the shingle is cracked or the mat is exposed, we replace the individual shingle and seal the surrounding courses.
• Landmark and Landmark Pro: These are the workhorse CertainTeed laminates, and they’re on more San Diego roofs than any other CertainTeed line. The failure we see most on Landmark is nail-pop uplift at the roof’s edge near eaves, especially on homes within a few miles of the coast where salt air accelerates the sealant breakdown. The shingle lifts, the nail head becomes a water entry point, and you get a slow drip that shows up as a ceiling stain months later. We pull the failed shingles, check the decking beneath for rot, replace any damaged decking, and reinstall with proper fastener placement per CertainTeed’s install specs.
• Carriage House: This is CertainTeed’s scalloped-edge shingle, and it looks distinctive. The problem is that the scalloped cut creates more exposed edges than a standard shingle, and each edge is a potential lift point. In San Diego’s Santa Ana wind season, those edges take a beating. We see more lifted tabs on Carriage House than any other CertainTeed line. Our repair approach is to inspect the entire slope, not just the shingle the homeowner spotted flapping, because when one scallop goes, its neighbors are usually close behind.
• Flashing failures at valleys and sidewalls: This isn’t a shingle problem, but it’s the single most common cause of leaks on CertainTeed roofs we’re called to repair. The original installation used step flashing that’s either too short for San Diego’s wind-driven rain patterns or has corroded at the fasteners. CertainTeed’s warranty covers the shingles, but it does not cover flashing that wasn’t installed to spec. We replace the flashing, re-bed the shingle courses, and seal the transition properly. If the flashing has failed, the shingles around it usually need resetting too.
• Underlayment breakdown on low-slope sections: CertainTeed shingles are rated for specific slopes, and on San Diego homes with low-slope porch roofs or additions, installers sometimes push that rating. The shingle sheds water fine, but the underlayment beneath has been doing more work than it’s rated for. You won’t see this from the ground. We find it when we pull shingles during a leak investigation. The fix is a proper low-slope roofing system on that section, which often means a CertainTeed-compatible membrane rather than more shingles.

Our CertainTeed Roofing Company Process

When you call about a CertainTeed roof issue, here’s exactly how the job goes, step by step.

1. 1
   You call (619) 810-5520. A live person answers, not a voicemail tree. You describe what you’re seeing, and we schedule a visit at a time that works for you.
2. 2
   You get the name and photo of your technician before arrival. When our technician shows up, they’re in a clean, marked uniform and they hand you a photo ID badge at the door. You’ll know exactly who to expect. That’s the Threshold Standard, and every Mercer Roofing technician meets it.
3. 3
   We diagnose the roof in person. Our tech walks the roof, identifies the CertainTeed line you have, and determines the specific failure. We take photos you can keep. We explain what we found in plain English, not contractor shorthand. If decking, flashing, or underlayment is involved, we show you.
4. 4
   You get a written price before any work starts. Not an estimate range with a shrug. A written number for the full scope, with no change orders unless we both sign off on something new we uncover. If we find rotted decking during the repair, we show it to you before we go further and get your sign-off on the adjusted written price.
5. 5
   We make the repair using CertainTeed-spec materials. We use manufacturer-supplied or manufacturer-spec aftermarket materials. For warranty-sensitive work, we default to CertainTeed components. For discontinued colors or lines, we source matching materials from our San Diego supplier network and tell you exactly what we’re using and why.
6. 6
   We inspect our own work, then hand you a written guarantee. Every repair includes a 365-day written guarantee. If it fails within a year, we return and make it right at no cost. That’s not a promise we make with crossed fingers. It’s in writing, on every job.

What CertainTeed Roofing Company Costs in San Diego

Here’s what we charge for the most common CertainTeed roof work in San Diego. These are real ranges based on the jobs we’ve done across the city, from Clairemont Mesa to Chula Vista to Rancho Bernardo.

• Individual shingle replacement (Landmark, Landmark Pro): $450 – $700, depending on roof access and slope.
• Flashing repair at valley or sidewall: $600 – $1,100, depending on the length of flashing and how many shingle courses need resetting.
• Underlayment repair on a low-slope section: $800 – $1,800, depending on square footage and the membrane system required.
• Multiple-shaving repair after wind damage (Carriage House or Presidential lines): $900 – $1,400 for a typical slope.
• Full CertainTeed roof replacement: $12,000 – $28,000 for a standard San Diego single-family home, depending on square footage, CertainTeed line selected, decking condition, and roof complexity.

What moves the price: how steep your roof is, how many stories, how much decking we have to replace, and which CertainTeed line is going back on. A Landmark roof costs less than a Presidential Shake roof. That’s just materials math. Call (619) 810-5520 and we’ll give you a written price for your specific roof. The estimate is free.

Why San Diego Homeowners Call Mercer Roofing Co San Diego for CertainTeed Work

Most roofing companies can nail down a shingle. Few can tell you why your CertainTeed Landmark shingles are lifting on the west slope but not the east, and fewer still will put every repair in writing with a 365-day guarantee before they pick up a hammer. That’s what we do. Grant Whitlock walks every CertainTeed job himself before a single nail goes in, because he learned early in his career that a roof done right is really just a promise kept in shingles and felt. A roof shouldn’t be something you worry about – that’s what we’re here for.

We also work with GAF and Owens Corning systems, so if your roof has mixed brands or you’re considering a change, we can give you a straight comparison without a sales pitch. But if you have CertainTeed on your San Diego home, you’ll get a technician who knows that line’s quirks, a written price before work starts, and a photo ID badge at your door before anything else. No surprises, no fast talk.

FAQs