Tile roofing
Architectural shingles
Metal roofing
GAF
Owens Corning
Flat & low-slopeFree roof inspection with deck photos before we talk money - GAF and Owens Corning certified installation
GAF Gutter Replacement: The Los Angeles Owner’s Guide
GAF gutter replacement in Los Angeles typically runs $14 – $28 per linear foot installed, with most single-family homes landing between $1,800 and $4,200 total depending on roofline length, eave height, and whether we’re also replacing downspouts. We stock GAF-compatible aluminum and steel gutter profiles on our trucks, and in most LA neighborhoods we can complete a full gutter replacement in one day. Where owners usually catch this: a gutter sagging away from the fascia with a visible gap behind it, rust blooming through at the end caps, or water sheeting over the front edge during a January downpour instead of finding its way to the downspout.
Tilehurst Roofing Los Angeles is an independent service provider and not affiliated with GAF.
Key Takeaways
- Installed GAF gutter replacement in LA averages $1,800 – $4,200 for a typical home
- We carry K-style and half-round profiles in 5″ and 6″ widths, aluminum and galvanized steel
- Most single-story replacements finish in one day; two-story homes with steep pitches take longer
- Every job gets a written price before work starts and a written guarantee when it’s done
- Greg Holloway and the crew answer calls live at (213) 674-2890
Which GAF Models This Applies To
GAF doesn’t manufacture gutters under its own brand name the way it does shingles, but the company specifies gutter compatibility across its Timberline, Royal Sovereign, and Designer shingle lines, and many LA homes with GAF roofs carry the gutter profiles GAF recommends for their certified installations. The most common pairing we see is a GAF Timberline HDZ or Ultra HD roof with 5-inch K-style aluminum gutters, hangers spaced every 24 inches, and oversized 3×4-inch downspouts. The compatibility gotcha most owners miss: GAF’s hip and ridge cap shingles extend further into the gutter than older three-tab profiles, which means a gutter mounted too close to the fascia will trap shingle overhang and back water up under the eave. We check that clearance on every inspection.
When you open a gutter catalog, the GAF-compatible specs fall into two buckets: OEM-matched profiles the manufacturer lists in its installation bulletins, and quality aftermarket equivalents that meet the same dimensional specs at lower cost. For LA homes, we recommend 0.032-gauge aluminum for standard runs and 0.027-gauge for budget-conscious projects, both in baked-enamel finishes that hold up to UV exposure better than mill finish. The steel option, usually 26-gauge galvalume, costs less up front but develops seam rust faster in coastal air, so we steer Santa Monica and Playa del Rey homeowners toward aluminum unless the building code requires steel. We also stock matching profiles from Owens Corning and CertainTeed systems, so if you have a mixed-material roof we can match without a special order.
Styles & brands we work with






Signs Your GAF Gutter Replacement Is Failing
- Water spilling over the front lip during rain. This is usually debris packing, but if the gutter is clean and still overflowing, the pitch has flattened or the hangers have pulled loose from the fascia board. In LA’s dry-season-then-downpour pattern, a gutter that fails in January has been quietly loosening since the last big storm.
- Sagging or visible gaps between gutter and fascia. When hanger spacing exceeds 24 inches or the fascia wood has rotted behind the gutter, the run pulls away. You’ll see a shadow line behind the gutter and drip stains on the stucco below.
- Rust or pinhole leaks at end caps and seams. Los Angeles isn’t a rain-soaked city, but morning marine layer moisture from the coast plus sprinkler overspray keeps gutters damp enough to corrode, especially at joints where water pools. Pinholes start small and widen fast once the aluminum oxide layer is compromised.
- Downspout separation or water pouring out at the elbow. A joint that’s popped apart means leaves and grit have built pressure upstream, or the downspout strap failed. Water dumping at the foundation line is a slow foundation problem wearing a gutter problem’s clothes.
- Gutter pulling down on one end while the other stays tight. This is the classic sign of a failed hanger bracket or a stripped screw in the rafter tail. It’s also the one symptom that damages the roof edge fastest, because the tilting gutter starts holding water against the drip edge and under the starter shingle.
Replacement Cost & What’s Included
In Los Angeles, GAF-compatible gutter replacement pricing breaks down like this for a standard single-story home:
| Scope | Typical Installed Cost |
|---|---|
| 5″ aluminum K-style, up to 150 linear feet (single-story) | $1,800 – $2,600 |
| 5″ aluminum K-style, 150 – 250 linear feet (two-story or complex eaves) | $2,600 – $3,800 |
| 6″ aluminum K-style or half-round profile, any length | $2,900 – $4,200+ |
| Downspout replacement (each, 10-foot run) | $140 – $260 |
| Fascia board repair per 8-foot section (when rot is present) | $90 – $180 |
The range moves on four things: linear footage, second-story or high-ladder access, whether the existing fascia board needs repair, and profile type. We quote aluminum K-style as the baseline because it’s the best cash value for LA’s climate. The written price you get before we start includes tear-off and haul-away of the old gutter, all hangers and brackets, new end caps and outlets, sealant, and cleanup. Every replacement carries our written guarantee, and under the 365-Day Done Right Promise, if a gutter we hung pulls loose or leaks at a seam inside the first year, we come back and fix it at no charge.
See the difference
Before
After
Before
After
Before
AfterDIY or Call Us?
An owner who wants to troubleshoot before calling can safely check a few things: run a hose into the gutter and watch where water exits, take a level to the run and see if the pitch still drains toward the downspout, and inspect hanger spacing from the ground with binoculars. Those observations help us quote faster over the phone. But gutter replacement means working from a ladder at height, handling 10-foot sections of aluminum that kink if you breathe wrong, and making cuts and seams that will leak if the crimp isn’t right. The part where DIY goes wrong in Los Angeles is usually the ladder setup on a slope or a stucco wall, not the gutter itself. A fall from even a single-story eave is a hospital visit waiting for a misstep. If the gutter is two stories up, over a tile roof, or the fascia is soft behind it, that’s a call to us at (213) 674-2890. We’ll tell you the price before we touch the roof, that’s the only way we know how to start.
FAQs
In Los Angeles, well-installed 0.032-gauge aluminum gutters last 20 – 25 years; thinner 0.027-gauge runs typically go 12 – 18 years before seams and hangers start failing. Coastal exposure in neighborhoods like Pacific Palisades and Playa del Rey shortens that by 5 – 7 years due to salt air corrosion. Steel gutters fail faster here, usually showing seam rust within 8 – 12 years. Call (213) 674-2890 for an assessment of your specific eave conditions.
Sections with pinhole leaks can sometimes be patched with seam sealant, but once the aluminum has thinned or the hanger holes have wallowed out, patching buys months, not years. We’ll tell you honestly if a $120 repair beats a replacement. The answer depends on whether the metal is still structurally sound at the seams.
Most single-story Los Angeles homes finish in 4 – 6 hours on site; two-story homes or runs over 200 linear feet may take a full day or a second morning. We haul away old material the same day and leave the property clean, which for us means no cutoff pieces in the flower beds and no screws left on the patio.
We keep 5-inch and 6-inch aluminum K-style profiles, half-round in select diameters, downspouts, hangers, and end caps on our trucks. If your project calls for a specific color or a steel profile, we can usually source it from our local supplier within one to two business days. Call (213) 674-2890 with your roofline measurements and we’ll tell you what we can load that morning.
Call Tilehurst Roofing Los Angeles for GAF Gutter Replacement
If your GAF-roofed home is wearing a gutter that’s sagging, rusting, or spilling water, call Greg Holloway and the crew at (213) 674-2890. We’ll give you a written price before any work starts, tell you exactly what profile and material we’re installing, and stand behind the job with a written guarantee and the full year of accountability that comes with the 365-Day Done Right Promise. A live person answers, 24 hours a day, 7 days a week.
Written by Greg Holloway, Owner, Tilehurst Roofing Los Angeles at Tilehurst Roofing Los Angeles, serving Los Angeles and nearby areas.