Tamko Gutter Replacement Nationwide

Tamko Gutter Replacement: The Los Angeles Owner’s Guide

If your Tamko gutter system is sagging, leaking at the seams, or pulling away from the fascia, replacement is usually the more honest fix than another patch job. We stock Tamko-compatible gutter components on our trucks and install them across Los Angeles for a typical range of $800 to $2,400 depending on linear footage, profile style, and whether the downspouts need swapping too. Most Los Angeles homeowners discover the failure the same way: a visible drip line down the stucco after the first real rain, or a section of gutter that’s started to tilt and hold standing water three days after a storm. That standing water is what accelerates the rust-through on steel Tamko profiles and the sealant breakdown at the corner miters.

Call (743) 200-8347

We’re an independent Los Angeles roofing and gutter contractor. We’re not affiliated with Tamko, but we work with their gutter profiles regularly because plenty of homes across the basin were built with them, and when they wear out, matching the profile matters more than most people realize.

Which Tamko Models This Applies To

Tamko has produced a few distinct gutter lines over the years, and the replacement path depends on which one your home has. The most common we see in Los Angeles is the Tamko 5-inch K-style aluminum profile, typically in 26-gauge or 29-gauge stock, fabricated on-site or delivered in 32-foot runs. Older homes in the San Fernando Valley and parts of Sylmar sometimes have the 6-inch half-round profile, which Tamko offered for a stretch in the 1990s and early 2000s. The 5K and 6K profiles are not interchangeable at the hanger or the corner miters, so if you mix them, you get end-cap gaps and a leaking joint within the first wet season.

The fastest way to identify what you have is to look at the inside of the gutter where it meets a downspout drop. Tamko typically stamped a profile code, like “T5K” or “T6H,” on the aluminum or into the steel before powder-coating. If the stamp has faded, measure across the top opening: a 5-inch profile measures roughly five inches from the outer lip to the back flange, and that measurement dictates every replacement component downstream. On the OEM versus aftermarket question for Tamko specifically: OEM Tamko profiles are harder to source in Los Angeles now, and most of what we install is quality-matched aftermarket stock from Senox or Berger that carries the same profile dimension and a comparable paint warranty. The aftermarket options for Tamko profiles are good, but only when the profile measurement matches exactly. A 5-inch gutter is not a 5.25-inch gutter, and we’ve seen contractors fudge that before.

Signs Your Tamko Gutter Replacement Is Failing

• Standing water in the gutter bed 48 hours after a rain. The pitch has shifted because the hanger spikes or hidden brackets have loosened from the fascia board. On Tamko steel profiles, this is also where rust-through starts, usually at the low points near the downspout drop.
• Visible drip stains down the exterior stucco or siding beneath a gutter seam. The sealant inside the corner miter or at the run joint has dried and split. Los Angeles heat cycling, from cool coastal nights to 95-degree valley afternoons, hardens standard gutter sealant faster than manufacturers’ general estimates.
• Gutter pulling away from the fascia, with a gap you can see from the ground. The ferrule-and-spike hangers Tamko used on older installs back out over time. Once one hanger fails, the gutter’s weight redistributes and the adjacent hangers fail within a season, often after heavy Santa Ana winds push against the lip.
• Peeling paint or rust spots on the gutter’s bottom bead. This is more common on the older Tamko steel profiles. Once the factory enamel is breached, the steel underneath oxidizes quickly in Los Angeles’s dry-wet-dry cycle, and pinholes become visible leaks within a year.
• Downspout joints separating at the elbow or the drop outlet. The aluminum crimp fittings on Tamko downspouts fatigue over time, especially where the elbow meets the vertical run. You’ll see water sheeting down the side of the house during heavy rain instead of flowing cleanly through the pipe.

Replacement Cost & What’s Included

For a typical single-story Los Angeles home with 120 to 160 linear feet of gutter, replacing a Tamko system runs between $800 and $2,400 installed. The biggest cost drivers are profile size, material, and height. A 5-inch aluminum K-style replacement on a single-story house sits near the low end. A 6-inch half-round replacement, or any job on a two-story home where we’re working off ladders and setting scaffold brackets, lands higher. Downspout replacement adds $60 to $120 per drop depending on length and elbow count.

Every quote we write includes the gutter runs, miters, end caps, hidden hangers spaced every 24 inches, downspout drops with elbows, and haul-away of the old Tamko material. We put the price in writing before any work starts, and the number on the invoice matches the number on the quote, no change orders unless we uncover hidden fascia rot that changes the mounting surface. Every Mercer Roofing replacement includes the 365-Day Done Right Promise: if the gutter isn’t performing within a year, we come back and make it right, at no charge. The written guarantee covers the workmanship and the installation, and it’s part of every job, not an upsell.

Los Angeles pricing note: if you’re in the hills, in neighborhoods like Mount Washington or Baldwin Hills where access means a steeper pitch and more ladder setup, expect the labor side to run slightly higher. That’s the honest cost of doing it safely on a slope.

DIY or Call Us?

Some gutter work is safe to check yourself. You can clear debris from the gutter bed with a scoop, inspect the downspout openings for clogs, and note where water spills over during a rain. Those observations help you describe the problem accurately when you call for a quote, and they help us budget the job before we arrive.

Replacing the gutter itself is different. The work means working off a ladder at height, often near power service lines where the drop comes off the roof eave. A 32-foot run of aluminum or steel in a Santa Ana gust becomes a sail that can throw a ladder off balance. Cutting and crimping Tamko profiles to match a miter angle is a skill that takes years to get right, and a poorly mitered corner leaks from day one and rots the fascia board beneath it. If you want to check the profile and measure, we’ll confirm it on site. For the actual swap, call (743) 200-8347 and we’ll give you a written estimate before any work begins.

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