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Flat & low-slopeFree roof inspection with deck photos before we talk money - GAF and Owens Corning certified installation
GAF Roof Installation in Fort Lauderdale: What to Know First
GAF roof installation in Fort Lauderdale typically runs $8,500 to $24,000 depending on the shingle line, roof size, and decking condition, and most residential jobs take 2 to 5 days once materials arrive. We’re an independent GAF service provider, not a manufacturer-authorized installer, which means we can give you straight answers about which GAF line actually makes sense for a South Florida roof without a rep’s sales quota in the room. This page is for homeowners who already own GAF shingles or are considering them for a new roof in Fort Lauderdale and want real numbers, real failure patterns, and a clear process before anyone climbs a ladder.
If you’d rather just talk it through, call us at (754) 354-1224 and we’ll walk you through what applies to your roof specifically.
How GAF Products Fail – and How We Fix Them
Every shingle brand has patterns. After years working on Fort Lauderdale roofs, here’s what we actually see with GAF products and what we do about it.
- Timberline HDZ shingles losing granules faster than expected near the coast. Fort Lauderdale’s salt air and afternoon downpours accelerate granule loss on the Timberline HDZ line, especially on east-facing slopes off Las Olas and Victoria Park. The tell is dark patches where the fiberglass mat starts showing through. When we install this line, we check slope and exposure first because overexposure from the last install is often the real culprit, not the shingle itself.
- Timberline UHDZ sealant strips failing after high-wind events. The UHDZ line uses a wider sealant strip, but if a prior installer set the nail line wrong, wind-driven rain gets under the shingle edge along Fort Lauderdale’s storm corridors. We see this most on homes near the Intracoastal. Our fix is a full inspection of the nail placement before we touch anything, then resealing or replacing the affected courses.
- GAF Royal Sovereign 3-tab shingles cracking at the corners. The Royal Sovereign line is an economy 3-tab that doesn’t hold up well to Fort Lauderdale’s thermal cycling. Heat expands the shingle, cool rain shrinks it, and the corners crack. If you have Royal Sovereign and you’re seeing cracks, you’re usually past repair and into replacement territory. We’ll tell you that straight instead of patching something that’ll open again in ten months.
- GAF Tiger Paw underlayment wrinkling beneath newer shingle lines. Tiger Paw is a good synthetic underlayment, but if it was laid over damp decking or in high humidity without proper fastener spacing, it wrinkles. Those wrinkles telegraph through and create ridges in the shingle surface. When we strip and re-install, we check decking moisture before the underlayment goes down, which is a step a lot of crews skip on a tight schedule.
- Improper flashing integration at GAF ridge vents. GAF’s Cobra ridge vent system works well, but only if the flashing at the ridge transitions is cut and sealed right. We regularly repair leaks where a roofer used generic flashing instead of GAF-spec materials and the sealant failed inside two years. We use the right profile and a proper seal on every GAF ridge vent we install.
Styles & brands we work with






Our GAF Roof Installation Process
Here’s what happens from the first call to the final walk-around.
- 1
The call and the written price. A live person answers. We schedule a visit, and before any work starts, you get a written price with the scope spelled out. No surprise line items at the end.
- 2
The inspection. Our technician arrives in a clean marked uniform with a photo ID badge, and you’ll have their name and photo before they knock. They inspect the decking, underlayment, flashing, and current shingle condition, and take attic photos if needed.
- 3
The parts decision. If we’re repairing a section, we discuss OEM GAF components versus quality aftermarket options. For warranty-sensitive areas, we recommend OEM. For certain flashing transitions where aftermarket holds up better in salt air, we say so plainly.
- 4
The install. We strip where needed, inspect decking, replace any rotted sections, lay underlayment with attention to Fort Lauderdale’s humidity, and install the GAF shingles to spec with proper nail placement and exposure.
- 5
The test. We water-test critical transitions and inspect every flashing point. If anything isn’t right, it gets fixed before we call the job done.
- 6
The guarantee. Every job includes our 365-Day Done Right Promise in writing. If it’s not right within a year, we make it right. No fine print games.
What GAF Roof Installation Costs in Fort Lauderdale
Here are honest ranges for common GAF scenarios in Fort Lauderdale, based on what we’ve quoted and completed in the area.
- Partial repair on a Timberline HDZ roof: $450 to $1,800 depending on how many courses and the flashing condition.
- Full re-shingle of a 1,500 sq ft ranch home with Timberline HDZ: $9,500 to $14,500 including tear-off and new underlayment.
- Full re-shingle of a 2,500 sq ft two-story home with Timberline UHDZ: $16,000 to $24,000, with the higher end reflecting decking replacement and ridge vent work.
- Ridge vent replacement with GAF Cobra: $350 to $900 depending on linear feet and the condition of the existing flashing.
What moves the price most is decking condition. If the last roofer saved money by leaving old decking, we’ll show you the moisture readings and quote the replacement line item separately. We never bury that cost. Call (754) 354-1224 for a free estimate with the numbers in writing before anything starts.
See the difference
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After
Before
After
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AfterWhy Fort Lauderdale Homeowners Call Mercer Roofing Co Fort Lauderdale for GAF Work
Most roofing companies can put shingles on a roof. The reason people call us back is how we handle the visit itself. You get the name and photo of the person coming to your door before they arrive. They show a photo ID badge. The price is in writing before work begins, and if the work isn’t right within a year, we fix it under the 365-Day Done Right Promise. That’s the Threshold Standard, and every Mercer technician is background-checked, identity-verified, and held to it.
Grant Whitlock started learning this trade through the construction technology program at Los Angeles Trade-Technical College and has spent more than two decades on real roofs. He’s the one behind our habit of telling homeowners when a repair will hold versus when replacement is the honest call. We also work with Owens Corning and CertainTeed, so if a GAF line isn’t the best fit for your roof’s pitch or exposure, we’ll say so and show you why. A good roof shouldn’t be something you think about, that means we did our job right.
FAQs
Installing GAF shingles with an independent contractor like Mercer Roofing Co Fort Lauderdale does not void the manufacturer’s material warranty, but the workmanship warranty comes from us, not GAF. The GAF material warranty covers defects in the shingles themselves. Our 365-Day Done Right Promise covers the labor. Call (754) 354-1224 and we’ll explain what your specific GAF warranty does and doesn’t cover based on the line you have.
Most residential GAF installations in Fort Lauderdale take 2 to 5 working days once materials are delivered and the decking inspection is complete. Larger two-story homes with heavy decking replacement run toward the upper end. We’ll give you a written schedule before we start so you know exactly when we’ll be on your roof and when we’ll be done. Call (754) 354-1224 for a timeline specific to your home.
If your GAF shingles are Timberline HDZ or UHDZ and the damage is limited to one slope or a flashing transition, repair usually makes sense. If you have Royal Sovereign 3-tabs with cracking across multiple slopes, replacement is almost always the better financial decision. We’ll show you the condition in photos and put both options in writing with prices. Estimate is free, call (754) 354-1224.
We use genuine GAF components for shingles, ridge vents, and underlayment whenever the job calls for them, and we’ll tell you in writing if an aftermarket flashing part will perform better in Fort Lauderdale’s salt air. The decision is always yours, with the trade-offs laid out before work begins. Call (754) 354-1224 to discuss your specific roof.
If the installation isn’t right within 365 days, Mercer Roofing Co Fort Lauderdale makes it right at no charge under the 365-Day Done Right Promise. Every GAF installation includes this guarantee in writing. If you see a leak, a lifted shingle, or anything that doesn’t look correct, call (754) 354-1224 and we’ll schedule the return visit.
Call Mercer Roofing Co Fort Lauderdale for Your GAF Roof Installation
Before you commit to any roofer in Fort Lauderdale, get a written price from us and compare what’s actually in it. You’ll know who’s coming to your door, what they’ll do, and what it costs before a single nail is driven. Call Grant and the team at (754) 354-1224 to schedule your free estimate.
Written by Grant Whitlock, Owner, Mercer Roofing Co Fort Lauderdale at Mercer Roofing Co Fort Lauderdale, serving Fort Lauderdale and nearby areas.