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GAF Gutter Replacement: The Jacksonville Owner’s Guide
GAF gutter replacement in Jacksonville typically runs $9 to $18 per linear foot installed for standard 5-inch aluminum, with most single-story homes landing between $1,400 and $2,600 all-in. We stock GAF-compatible gutter components on our trucks, and for a straightforward replacement we can usually complete the work within one visit. Most Jacksonville homeowners discover the problem the same way: after a heavy summer downpour, water sheets over the gutter edge instead of flowing to the downspout, or a section sags visibly at the fascia line after months of oak debris and pine needles packed it tight.
What makes GAF gutters different from generic box-store aluminum is the gauge consistency and the profile geometry you get when you match the gutter to GAF’s roofing system. In Jacksonville’s afternoon thunderstorm season, a properly pitched GAF gutter moves water fast. When one fails, you’ll know it.
Key takeaways:
- Installed replacement for GAF-compatible gutters in Jacksonville: $9 – $18 per linear foot, full job most often $1,400 – $2,600.
- We stock standard 5-inch K-style GAF-compatible profiles and can order 6-inch on a 2 – 3 day turnaround.
- We’re an independent Jacksonville roofing contractor, not a GAF corporate entity, and we install GAF-compatible gutter components alongside full GAF roof systems.
- Written price before any work starts, every time, no exceptions.
Which GAF Models This Applies To
GAF manufactures gutters and gutter accessories under the GAF and GAF Materials umbrella, with the most common residential line being the 5-inch K-style aluminum profile in standard gauge. We also work with gutter fascia and drip edge components that integrate with GAF Timberline and Timberline Ultra shingle systems, which we see on a large share of Jacksonville roofs. The compatibility question that matters most is fascia and drip edge alignment: GAF’s system is designed so the gutter tucks behind the drip edge, not below it. Get that wrong and you’ll have water running behind the gutter, which rots the fascia before you ever see a leak.
How to identify what’s on your home: look inside the gutter end cap or along the back lip. Many GAF-compatible gutters carry a manufacturer stamp with the gauge (commonly .027 or .032) and the K-style profile designation. When we assess a Jacksonville home, we measure the existing gutter width, check the hanger spacing (GAF’s recommended spacing is 24 inches maximum, though we often see 32 or even 36 on homes where a handyman installed the original gutters), and inspect whether the previous installer used wedges or spacer ferrules. The screw-through-the-back hanger with a hidden bracket is the GAF-preferred method, and that’s what we use.
On the OEM versus aftermarket decision: for standard 5-inch aluminum, we use GAF-compatible aftermarket profiles that meet the same gauge spec. The aluminum itself comes from regional extrusion suppliers and often from the same mills that feed the branded lines. What you should not accept is thinner .019 gauge from a big-box store. In Jacksonville, where a January nor’easter or a late-season tropical system can dump three inches in an hour, thin-gauge gutter sags, pulls hangers, and gives out at the seams within two or three seasons.
Styles & brands we work with






Signs Your GAF Gutter Replacement Is Failing
- Water spilling over the front edge during normal rain. This usually means the gutter has lost pitch toward the downspout, often after a hanger pulled loose from the fascia. Jacksonville’s heat-and-rain cycle works screws out of wood fascia slowly, and once one hanger goes, the gutter dips and pools.
- Visible sag or pull-away from the fascia board. When you stand at the street and see daylight between the back of the gutter and the fascia, the hangers are failing. We see this most on the east-facing sides of Jacksonville homes, where morning sun and afternoon storms alternate stress on the aluminum.
- Seam separation or a steady drip at a corner. GAF-compatible sectional gutters are joined at mitered corners with sealant and screws. The sealant eventually hardens under Florida UV exposure and separates, and the drip becomes a constant source of moisture against the fascia.
- Rust-colored streaks down the gutter face or at the downspout connection. Aluminum doesn’t rust, but galvanized steel hangers and screws do. The staining tells you the hardware is corroding, which means the gutter is hanging on degraded fasteners.
- Pooled water or mosquito larvae in sections of the gutter days after rain. Standing water means the pitch is flat or reversed. In Jacksonville, that’s not just a gutter problem, it’s a mosquito breeding issue during the May through October stretch.
See the difference
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After
Before
After
Before
AfterReplacement Cost & What’s Included
On a typical Jacksonville single-story home, GAF-compatible gutter replacement runs $9 to $18 per linear foot installed, which includes removal and disposal of the old gutter, the new aluminum trough, hangers, end caps, miters, downspout connections, and sealant. A full 1,800-square-foot home with 160 linear feet of gutter usually lands between $1,600 and $2,400. Two-story homes or jobs requiring 6-inch commercial-profile gutter run higher, and we’ll show you the exact number before we remove a single section.
What’s in our written price: a line-item breakdown for each run of gutter, the downspout count, any fascia repair if the wood has rotted behind the old gutter, and clean-up. You’ll have the price in writing before we touch a shingle. Every replacement we do carries our 365-Day Done Right Promise: if the gutter isn’t pitched right, sags, or separates at a seam within the first year, we come back and make it right. No argument, no invoice.
DIY or Call Us?
Gutter replacement is not a high-risk job in the way that high-tension springs or steep-roof work is, but it does require working from a ladder against the roofline, often at 12 to 16 feet. For a one-story Jacksonville rancher with an 8-foot fascia height, a competent DIY homeowner can swap a 10-foot section of gutter on a Saturday. Where DIY goes wrong is in three predictable places: pitch (gutters need a quarter-inch of fall per ten feet toward the downspout, and most DIY sections run flat), hanger spacing (more than 24 inches and the gutter waves within a year), and seam sealing. We regularly replace DIY gutter sections on older Jacksonville homes where the homeowner did two runs fine and then fought the miter corner for four hours before it leaked anyway.
If the gutter run is two stories up, spans more than 30 feet, or the fascia board feels soft anywhere, call us at (904) 604-7914. Ladder work on a two-story Jacksonville home with rain-slicked aluminum is not the weekend project. It’s also not the place to find out the fascia is rotten. We’ll inspect, measure, and hand you a written price before the crew ever sets a ladder.
FAQs
In Jacksonville’s climate, a properly installed GAF-compatible 5-inch aluminum gutter lasts 18 to 25 years, with the limiting factor being hanger and sealant failure rather than the aluminum itself. The trough rarely fails; the connection points and seams do.
Yes, if the failure is a single seam separation or a pulled hanger within an otherwise straight run, we can repair it for much less than a full replacement. If the gutter is dented, wave-twisted, or thinning at the screw holes, patching buys you a season at most in Jacksonville’s storm cycle, and we’ll tell you that plainly before charging you for a repair we don’t believe in.
For a standard one-story Jacksonville home, replacement takes half a day to a full day, including removal, new gutter installation, downspout connection, and clean-up. Two-story homes or runs requiring fascia repair can take a second day, and we’ll show you the schedule in writing before we start.
We stock 5-inch K-style GAF-compatible aluminum on our trucks, along with hangers, miter corners, end caps, and downspout components. Six-inch commercial-profile gutter we order on a two to three day turnaround, and we’ll tell you at the estimate whether your home is a 5-inch job or whether the roof pitch and rainfall volume argue for 6-inch.
If your GAF gutter is failing and you want a straight answer on repair versus replacement, call Erik and the Birchbark Roofing Jacksonville crew at (904) 604-7914. We’ll walk the roofline with you, measure what’s there, and put a written price in your hand before any work starts. Shoe covers at the door, drop cloths through the hallway, and a photo of the completed clean-up before we leave. We also work with Owens Corning and CertainTeed gutter profiles if your system ties into a different shingle brand.
Written by Erik Lindgren, Owner, Birchbark Roofing Jacksonville at Birchbark Roofing Jacksonville, serving Jacksonville and nearby areas.