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Owens Corning Gutter Replacement: The Woodland Hills Owner’s Guide
If you have Owens Corning gutters that are leaking, pulling away from the fascia, or showing rust at the seams, replacement typically runs $1,800 to $3,600 installed on a standard Woodland Hills single-story home. We stock Owens Corning-compatible gutter components and can usually complete a full replacement in one day. Most homeowners discover the problem the same way: a dark stain on the stucco after the first real rain, or a downspout that’s quietly pouring water against the foundation where the old seam finally let go.
We’re an independent roofing and gutter contractor serving Woodland Hills and the surrounding Valley, not a corporate arm of Owens Corning. That matters because it means we can match your existing Owens Corning gutter profile without being tied to a single product line. We carry the parts that actually fit what’s already on your home.
Which Owens Corning Models This Applies To
Owens Corning’s gutter line is best known by its profile names rather than model numbers. The two you’ll most often find on Woodland Hills homes are the Classic K-style and the Half-Round. The Classic K-style is the standard 5-inch profile with the flat back and decorative front that mimics crown molding. The Half-Round is exactly what it sounds like: a U-shaped trough, more common on Spanish and Mediterranean-style homes up in the hills above Ventura Boulevard.
Here’s the compatibility gotcha most owners hit: Owens Corning gutters from the 1990s and early 2000s were manufactured in 10-foot and 20-foot sections with a specific seam profile that doesn’t always line up cleanly with generic off-the-shelf sections from the big-box stores. If you’ve ever patched a section yourself and noticed the new piece sat a hair lower than the old one, that’s why. For Owens Corning specifically, we recommend OEM-spec sections for the center runs and only use quality aftermarket where the profile matches exactly, which our crew verifies with a profile gauge before ordering anything. We’re also set up to work with the OC LeafGuard-style hood system if your home has it, and we can match the existing color rather than forcing you into a full repaint.
GAF and CertainTeed also make gutter systems we service regularly, so if you’re not entirely sure what’s on the house, we’ll identify it during the estimate.
Styles & brands we work with






Signs Your Owens Corning Gutter Replacement Is Failing
- Rust blooms at the seams and end caps. Owens Corning steel sections from the older runs were galvanized, but decades of Woodland Hills morning fog and the occasional Santa Ana wind-driven rain eventually win. Once rust perforates a seam, the section is done; sealant can’t fix a hole that’s already through the metal.
- Water running down the exterior wall during rain. That usually means the gutter is overflowing because the pitch has gone flat or the section has sagged. The water is bypassing the trough entirely and soaking the stucco, which is how you get efflorescence and interior moisture problems over time.
- Gutter pulling away from the fascia board. The bracket spacing on older Owens Corning installs was often wider than current code recommends. Dry rot in the fascia behind the bracket is a strong sign the gutter has been leaking against the wood for a while. We see this a lot in Woodland Hills homes with original wood fascia, especially on the north-facing eaves that stay damp longer.
- Downspout seams splitting open. The downspout takes the most hydraulic pressure during a heavy cell. Owens Corning downspouts from the older runs used a crimped seam that can pop under the weight of a clogged line backing up. Once the seam splits, the downspout is done.
- Visible ponding in the gutter channel after a rain. Gutter should drain completely within 24 hours. If water is standing in the channel, the pitch is wrong or the section has bent. Standing water accelerates rust and turns the channel into a mosquito nursery come spring.
See the difference
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AfterReplacement Cost & What’s Included
In Woodland Hills, full Owens Corning-compatible gutter replacement on a typical 1,500 to 2,000 square foot single-story home runs $1,800 to $3,600 installed. Here’s the breakdown of what drives that range:
- Linear footage: most homes need 120 to 200 linear feet of gutter. Material runs $6 to $10 per foot for steel sections, more for copper or half-round profiles.
- Fascia repair: if the old gutters leaked into the fascia board, expect $8 to $15 per linear foot for replacement fascia before the new gutter goes up. This is the single biggest surprise cost on gutter replacement jobs, and we’ll tell you if you need it during the estimate, not after we open the wall.
- Downspouts and elbows: typically $40 to $80 each installed, and most homes need 4 to 6 total.
- Tear-off and disposal: included in our price, not a separate line item.
Every estimate is written, not spoken. The price you get on paper is the price you pay, no change orders for things we could have seen during the walkthrough. And every gutter replacement we install in Woodland Hills carries the same 365-Day Done Right Promise: if something we installed isn’t right within a year, we come back and make it right at no charge.
DIY or Call Us?
Replacing a gutter section is not in the same danger class as high-tension springs or electrical work, but it’s not a weekend starter project either. The ladder work is the real hazard. Gutters run along the roof edge, which means you’re working at height on an extension ladder, often reaching sideways over flowerbeds and air conditioning units. A gutter section filled with water can weigh fifty pounds, and dropping one from fourteen feet up onto a concrete walkway is a bad afternoon for everyone.
What you can safely do: clear debris from the channel, check downspout cages for blockages, and mark the spots where you see leaks so our crew can identify the exact problem section before they even get on the roof. What we don’t recommend: removing end caps or seam sections yourself. The old Owens Corning seams can be crimped tight, and prying them apart without the right tools bends the section and makes the repair harder. If you’re in Woodland Hills and the gutters are going, call (341) 217-2677 and we’ll come take a look. The estimate is free, and you’ll know the real cost before you decide anything.
FAQs
Expect 20 to 25 years from galvanized steel gutters in Woodland Hills, assuming the seams were installed correctly and the pitch holds. The sun and the morning marine layer are the two big long-term enemies: UV breaks down the factory finish, and sustained moisture at the seams drives rust. Homes closer to the hills with more shade and tree cover tend to lose gutters faster to organic debris holding moisture against the metal.
Small rust spots and hairline seam leaks can sometimes be patched with a metal-compatible sealant, and we do that for homeowners when the section is otherwise sound. But once the metal is perforated through or the seam is actually separated, the section is done. Patching over structural rust just moves the leak twenty feet down the line. When a patch makes sense on cost, we’ll tell you that flat out. When replacing the section is cheaper over two years, we’ll tell you that too. Call (341) 217-2677 and we’ll give you a straight answer either way.
Most Owens Corning-compatible gutter replacements on a standard Woodland Hills single-story home take one full day, including tear-off, any necessary fascia repair, and installation. Two-story homes or homes with multiple rooflines may run into a second day. We’ll schedule it so the old gutters come down and the new ones go up in the same visit, and you’ll know the timeline before work starts.
Our crews carry the most common Owens Corning Classic K-style sections, end caps, elbows, and downspout extensions on the truck for repair calls. For full replacements with specific color matching or the half-round profile, we order the exact sections from our supplier before the install date. You’ll know what’s needed and how long it takes to get it during the estimate. If you have an active leak and need to talk to someone now, call (341) 217-2677 and a live person answers, day or night.
A roof should be the last thing you worry about. Let’s make sure it is.
Written by Grant Whitlock, Owner, Mercer Roofing Co Woodland Hills at Mercer Roofing Co Woodland Hills, serving Woodland Hills and nearby areas.