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GAF Gutter Replacement: The San Antonio Owner’s Guide
GAF gutter replacement in San Antonio typically runs $9 to $18 per linear foot installed, with most single-story homes landing between $1,100 and $2,600 for a full gutter run. Crestview Roofing Co San Antonio stocks GAF-compatible gutter components and can usually complete a section replacement the same week we inspect it. Most San Antonio homeowners discover they need this because of a sagging run after a hard spring storm, peeling paint on fascia boards, or water spilling over the front edge instead of flowing to the downspout – and by then, the gutter has usually been quietly failing for months.
The frustrating part is that GAF doesn’t make a proprietary gutter line. What most people mean when they ask about “GAF gutter replacement” is gutters that were installed alongside a GAF roof system, or gutters they want matched to GAF’s shingle colors and trim profiles. We work with that every week across San Antonio, from Alamo Heights to Stone Oak, and we’ll match the gauge, profile, and color so the new run looks like it was part of the original install.
Key Takeaways
- Most GAF-compatible gutter replacement in San Antonio costs $9-$18 per linear foot installed.
- GAF doesn’t manufacture gutters – we match gutter gauge, profile, and color to your GAF roof system.
- We carry 5-inch and 6-inch K-style aluminum gutter in stock, including GAF-matched colorways.
- Every replacement includes our 365-Day Done Right Promise in writing, at no extra cost.
- Written price before any work starts. The number on the estimate is the number on the invoice.
Which GAF Models This Applies To
GAF gutter replacement work we do in San Antonio generally falls into three buckets: gutters installed as part of a GAF Timberline roof system, gutters matched to GAF’s shingle color palette, and gutters on homes where the homeowner’s roofer told them “GAF gutters” and they’re not sure what that means. We’ll sort it out in about five minutes on the phone or with photos.
Here’s the compatibility gotcha: GAF’s shingle color names – like Weathered Wood, Charcoal, Shakewood, and Barkwood – have specific color codes that don’t always match the hardware store’s generic “brown” or “gray.” If you want gutter color matched to a GAF roof, you need the actual shingle color name from the bundle label, not a guess from a photo. Our techs carry a GAF color chart on the truck and match the gutter on-site before we order the run. That’s the difference between a replacement that looks factory and one that looks like a patch job.
On the gutter side, the two profiles we install most in San Antonio are 5-inch K-style aluminum for standard residential runs and 6-inch K-style for larger roof sections or homes with steep pitches that dump water fast. The 6-inch carries about 40% more water, which matters when a San Antonio storm drops two inches in an hour – which it does, a few times every year. OEM versus aftermarket for gutters isn’t really the decision point it is for other GAF parts, because GAF doesn’t manufacture gutter. What matters is the gauge of the aluminum. We stock .027-gauge and .032-gauge. The .032 is about 20% more expensive but handles hail and ladder dings noticeably better – worth it in a hail-prone city like San Antonio.
Styles & brands we work with





Signs Your GAF Gutter Replacement Is Failing
- Sagging or pulling away from the fascia. Gutter hangers fail slowly. In San Antonio’s heat, the aluminum expands and contracts, and cheap hangers work loose over a few summers. When the gutter dips even an inch, water pools instead of flowing, and that pooled weight pulls it further. This is the most common failure we replace.
- Water spilling over the front edge during rain. This is usually a slope problem – the gutter was pitched wrong originally, or it’s sagged enough to lose its fall. It’s also the failure homeowners feel first, because “water running off the roof in a sheet” is hard to miss. In San Antonio’s clay-heavy soil, that overspill also erodes the flower beds fast.
- Rust streaks or pinhole leaks in the bottom of the channel. Aluminum doesn’t rust, but steel fasteners do. Rust streaks mean the gutters were hung with cheap screws. Pinholes happen when wet leaves and debris sit in the channel for months – the tannic acid in decaying oak leaves eats through thinner aluminum. San Antonio’s live oaks drop year-round, so this one shows up more here than people expect.
- Downspout pulling away from the wall or standing water at the base. The downspout is where the system fails next. If the elbow or strap has come loose, water is likely discharging against the foundation instead of away from the house. In San Antonio’s expansive clay soil, foundation movement is a real thing, and a downspout that dumps against the slab makes it worse.
- Visible daylight through the gutter channel from below. That’s a hole or a separated seam. Either way, the gutter is now a sprinkler system pointed at your fascia board. Rot in fascia doesn’t show up in a week, but after a full Texas rainy season, the damage underneath is real, and replacing rotten fascia doubles the cost of the job.
See the difference
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After
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After
Before
AfterReplacement Cost & What’s Included
GAF gutter replacement in San Antonio runs $9 to $18 per linear foot installed for standard 5-inch K-style aluminum. A full run on a single-story 1,800-square-foot home – roughly 140 to 180 linear feet – lands between $1,300 and $2,700 including downspouts, hangers, and haul-off of the old material. Half-round or copper gutter, if you’re replacing something fancier in Alamo Heights or Terrell Hills, runs $22 to $45 per linear foot.
What moves the number: the gauge of the gutter, whether the fascia board underneath is rotted and needs replacement, the number of downspouts, and whether you’re on a single story or two. Every Crestview Roofing Co San Antonio quote includes a written line-item breakdown before any work starts – parts, labor, and haul-off listed separately, with the total locked. If the old gutter comes down and the fascia is worse than expected, we show you photos of the damage and you approve the additional work in writing before we touch it. No change orders, no “adjustments” at the end. And the whole replacement is covered by our 365-Day Done Right Promise: if it fails within a year, we come back and fix it at no charge, in writing, included.
DIY or Call Us?
You can safely check a few things yourself: whether the gutter is visibly sagging from the ground, whether water is overshooting the front edge during rain, and whether the downspouts are still attached. Cleaning leaves and debris out of the channel is usually fine with a ladder, a bucket, and gloves. That’s maintenance, not repair.
Where DIY goes wrong on gutter replacement is the pitch and the fastening. Gutter has to slope a quarter inch per ten feet toward the downspout – not level, and not pitched the wrong way. Get the fall wrong and the “new” gutter pools water and needs to be redone. Also, hanging gutter involves working from a ladder at roof height, which in San Antonio often means a two-story reach. We pull plenty of gutters down that were installed by a neighbor or a handyman and never sloped right from day one. If the run has pulled away, is sagging, or has visible holes, call Dylan’s team at (361) 209-8857 and we’ll give you a written price for the fix. An estimate costs you nothing.
FAQs
Standard .027-gauge aluminum gutters in San Antonio last 12 to 18 years, and .032-gauge usually lasts 18 to 25. The wildcards are hail, tree debris sitting in the channel, and whether the original install had proper slope and spacing on the hangers. A gutter that’s been holding water for a few years fails on the shorter end of that range. Call (361) 209-8857 for a free estimate if your gutters are over 15 years old and showing rust streaks or sag.
Sometimes yes. A pulled-away hanger, a loose downspout strap, or a small pinhole can usually be repaired for $85 to $225 in San Antonio, and our 365-Day Done Right Promise still covers the work in writing for a full year. But a gutter with multiple pinholes, significant sag, or separated seams is like patching a tire with three plugs – replacement is usually the honest answer, and we’ll tell you that before we sell you a patch.
A standard single-story gutter replacement in San Antonio – one full run with downspouts – takes most of a day, usually 4 to 6 hours from setup to haul-off. Two-story homes or long runs with multiple downspouts may take a second day. We’ll give you a live trackable arrival time before we come, and you’ll get before-and-after photos with your digital invoice when the work is done.
We carry 5-inch and 6-inch K-style aluminum in the most common GAF shingle-matched colors – including Weathered Wood, Charcoal, and Barkwood – on our San Antonio trucks. If your color is less common, we order it and have it within a few days. Either way, the color gets matched to the actual GAF shingle name on the bundle label, not a guess from a photo. Call (361) 209-8857 and we’ll confirm availability before you book.
If your GAF gutters are sagging, leaking, or pulling away from the house, don’t wait until the fascia board rots underneath them. Call Crestview Roofing Co San Antonio at (361) 209-8857 for a free estimate. We’ll give you a written price before any work starts, match the gutter to your GAF roof, and stand behind the replacement for a full year in writing. Every promise we make goes in writing – because a handshake doesn’t keep water out.
Written by Dylan Pace, Owner, Crestview Roofing Co San Antonio at Crestview Roofing Co San Antonio, serving San Antonio and nearby areas.