Boral Gutter Replacement Nationwide

Boral Gutter Replacement: The Los Angeles Owner’s Guide

If you have Boral gutter sections that are cracked, sagging, or pulling away from the fascia, we stock Boral-compatible aluminum and steel gutter profiles and can typically replace them the same week for $18 to $32 per linear foot installed, depending on the profile and whether we’re also replacing downspouts. Most Los Angeles homeowners discover the problem during the first real rain of the season, when water spills over the back edge instead of draining. Other times it’s a gutter that’s visibly bent after a ladder mishap or a section that’s rusted through from years of leaf debris sitting wet against the metal.

Call (213) 521-8272

Mercer Roofing Co Los Angeles is an independent service provider, not affiliated with Boral. What that means for you is straightforward: we match the profile and finish of your existing Boral gutter sections, give you a written price before any work starts, and guarantee the replacement for 365 days.

Which Boral Models This Applies To

Boral’s gutter line in the US market primarily consists of two profiles: the 5-inch K-style and the 6-inch half-round, both in aluminum and in limited runs of steel for commercial and hillside applications. The K-style is what you’ll see on most single-family homes in Los Angeles, especially in neighborhoods built between the 1960s and early 2000s. If you have a Boral half-round profile, you’re more likely in an older craftsman or Spanish Colonial home in areas like Highland Park, Eagle Rock, or parts of Pasadena-adjacent Northeast LA.

The identification gotcha to be aware of: Boral’s 5-inch K-style has a slightly narrower top lip than generic box-store K-style gutters, which means a universal hanger can look like it fits while leaving a 1/8-inch gap that allows water to wick behind the gutter over time. When we match Boral sections, we use a hanger with a deeper clip that locks onto that profile specifically. If you’re swapping only a damaged section, that matters; if we’re re-running the full perimeter, we’ll replace the hangers as part of the job. We stock both Boral profile-matched sections and quality aftermarket equivalents from the same regional fabricators that supply most LA gutter contractors, so you’ll get an honest recommendation on which makes sense for your run.

Signs Your Boral Gutter Replacement Is Failing

• Water spilling over the back edge during rain. This usually means the hangers have loosened and the gutter is tipping forward, or the outlet is clogged and water is backing up behind the debris. In Los Angeles, the dry-season gap between rains lets debris harden into a crust that’s harder to clear than a fresh clog.
• Rust streaks or pin holes on the bottom of the gutter. Aluminum gutters in LA don’t rust, but the steel screws and some steel end caps do. If you’re seeing rust trails, the degradation is almost always originating at the fastener or seam, not the Boral section itself. That’s often repairable by replacing the fastener and sealing the hole.
• Visible cracks at the mitered corners. Corners are the weakest point on any gutter system. The constant expansion and contraction from LA’s hot days and cool nights eventually fatigues the aluminum at the inside miter, especially on west-facing elevations that take the afternoon sun.
• Sagging or angled sections that hold standing water. Gutter pitch that was correct at install can shift as the fascia board ages or as the house settles. Standing water is a breeding ground for mosquitos and accelerates corrosion at the seams.
• Gutter pulling away from the fascia entirely. In older Los Angeles homes, the fascia itself is often the culprit, with dry rot from decades of minor water intrusion. Replacing the gutter without addressing the fascia is a temporary fix. We’ll inspect the fascia and tell you straight if it needs attention first.

Replacement Cost & What’s Included

Here’s what Boral-compatible gutter replacement costs in Los Angeles, installed, as of 2026:

• 5-inch K-style aluminum, white or off-white: $18 to $24 per linear foot
• 6-inch half-round aluminum: $26 to $32 per linear foot
• Downspout replacement, per 10-foot drop: $85 to $140
• Fascia board replacement, per linear foot (if needed): $8 to $14
• Gutter guard install over new gutters: $4 to $7 per linear foot

These ranges cover removal of the old section, disposal, new Boral-compatible profile matched to your existing run, new hangers, sealant, and a complete flow test. The main price drivers are the linear footage, the height of your roofline (two-story work costs more), and whether the fascia needs repair beneath the gutter. Every price you see from Mercer Roofing Co is written down before work starts, so the number you approve is the number on the invoice. Every replacement is covered by our 365-Day Done Right Promise, which means that if the gutter leaks, sags, or fails within a year, we come back and make it right at no charge. A written guarantee comes with every job.

DIY or Call Us?

You can safely check a few things yourself: whether the downspout outlet is clogged, whether the hangers are still tight against the fascia, and whether a section is visibly cracked or bent. Clearing a clogged downspout with a hose or a plumber’s snake is a reasonable DIY task on a single-story home. Beyond that, gutter replacement on a ladder is where we see homeowners get hurt or make the problem worse. A single section of 5-inch gutter is roughly 10 feet long and awkward to control from a ladder, and the cuts at mitered corners are less forgiving than they look. If your roofline is two stories, or if the gutter is pulling away from the fascia, call us at (213) 521-8272 and we’ll inspect it and give you a written quote, even if the answer ends up being that you don’t need a full replacement at all.

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