Owens Corning Gutter Replacement Nationwide

Owens Corning Gutter Replacement: The San Antonio Owner’s Guide

Owens Corning gutter replacement in San Antonio typically runs $12 – $28 per linear foot installed for seamless aluminum or steel gutters matched to your Owens Corning roofing system, with most single-story homes landing between $1,800 and $4,200 total. We stock Owens Corning-compatible gutter components on our trucks and can complete most replacements same-day once we’ve measured your roofline. You’ll usually discover the problem during a heavy Texas downpour: water spilling over the front edge, a gutter pulling loose at a corner, or rust bleeding through where a seam has quietly failed.

Call (254) 276-4369

What most San Antonio homeowners don’t realize is that gutters and roofing work as one drainage system. When your Owens Corning shingles shed water correctly but the gutters can’t carry it away, you get fascia rot, foundation splash-back, and the kind of soil erosion that shows up as a soft spot near your slab. That’s the failure point that brings most owners to this page.

Which Owens Corning Models This Applies To

Owens Corning doesn’t manufacture gutters under its own brand name, but its roofing systems, including Duration, Oakridge, and TruDefinition shingle lines, are designed to work with specific gutter profiles. When a San Antonio contractor or builder installed Owens Corning roofing, they typically paired it with a 5-inch K-style gutter in aluminum or galvalume steel. That’s the most common configuration we replace on Owens Corning-equipped homes in Alamo Heights, Stone Oak, and Castle Hills.

The compatibility gotcha is this: if you have a high-pitch roof or a large eave overhang, a standard 5-inch gutter may have been undersized from day one. Owens Corning’s more aggressive shingle profiles shed water faster than older three-tab styles, which means the water volume hits the gutter trough harder. For those homes, a 6-inch K-style gutter is almost always a better fit. Bring us a photo of your current gutter from the side and we can usually tell you whether it’s a 5-inch or 6-inch profile before we even arrive. One more spec to know: most Owens Corning roof replacements done in San Antonio after 2015 used hidden hanger brackets spaced 24 inches apart. If yours were installed with spike-and-ferrule fasteners or wider spacing, that’s a likely culprit in the sagging you’re seeing now.

Signs Your Owens Corning Gutter Replacement Is Failing

• Water spilling over the front edge during normal rain. This usually means the gutter is undersized for how quickly your Owens Corning shingles shed water, or the pitch has flattened over time so water pools instead of flowing to the downspout.
• Visible rust or paint bubbling at the seams. Seamed gutters fail at the joints first. In San Antonio’s freeze-thaw cycle and heavy spring rains, a small seam leak becomes a big one inside two storm seasons.
• Gutters pulling away from the fascia board. The fasteners have lost their bite, often because the fascia behind them has started to rot from years of overflow. This is a sign the failure is already affecting the wood, not just the metal.
• Stained siding or a water line on the fascia below the roofline. That stain tells you water has been running down the side of the house instead of through the gutter channel. It also means your soffit and fascia are taking on moisture they were never designed to handle.
• Puddling or washout at the foundation line. If you see mulch pushed away from the slab or a soft, eroded trench forming below a downspout outlet, the drainage path is broken. In San Antonio’s clay-heavy soil, this can lead to foundation movement over time.

Replacement Cost & What’s Included

For a typical single-story San Antonio home with 140 – 180 linear feet of guttering, expect to pay between $1,800 and $4,200 for full replacement with seamless aluminum. Here’s how that breaks down:

• Seamless aluminum gutter (5-inch K-style): $12 – $17 per linear foot installed
• Seamless aluminum gutter (6-inch K-style, better for steep Owens Corning roofs): $16 – $22 per linear foot installed
• Downspouts: $8 – $12 per linear foot, most homes need 3 – 5 downspout runs
• Fascia repair (if rot is found): $6 – $12 per linear foot, only if needed

Every price we give you is written down before any work starts. That’s not a courtesy, it’s how we operate. Mercer Roofing Co San Antonio is part of the Threshold Group family, founded in 2000, and every one of our quotes includes the 365-Day Done Right Promise: if the gutter work isn’t right within a year, we make it right at no charge. No change orders on the day of the job, no surprise line items after the fact.

DIY or Call Us?

You can safely check a few things yourself: look for visible rust at the seams, check whether brackets are still tight against the fascia, and watch your gutters during the next rain to see where water is spilling or pooling. That’s useful information to have when you call us. What we don’t recommend is getting on a ladder to try removing a section of gutter. Gutter runs are long, they’re awkward to handle from a ladder, and when you release the last hanger the whole section wants to swing down. We’ve seen homeowners take a fall and damage the fascia in the same motion.

We’re not affiliated with Owens Corning, we’re an independent San Antonio contractor that installs and repairs gutters alongside Owens Corning roofing systems every week. If you want an honest look at what’s failing and a written number for what it costs to fix, call (254) 276-4369.

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