Boral Gutter Replacement in Seattle, WA

Boral Gutter Replacement: The Seattle Owner’s Guide

Boral gutter replacement in Seattle typically runs $12-$18 per linear foot installed for standard K-style aluminum systems, with most residential jobs landing between $1,200 and $2,400 total. We stock Boral-compatible gutter coil, end caps, and hidden hanger brackets on every Ridgeline truck, and most replacements are completed in a single visit. Most homeowners first notice the problem during our heavy fall rains: water spilling over the front edge, paint peeling below the gutter line, or a section that has pulled away from the fascia after years of freeze-thaw cycling.

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Which Boral Models This Applies To

Boral Roofing’s gutter systems were sold primarily through their distributed roofing accessory lines from the early 2000s through the mid-2010s, often bundled with concrete and clay tile installations in the Pacific Northwest. The most common we encounter are the Boral 5-inch and 6-inch K-style aluminum gutters, plus the older Boral half-round copper systems found on custom builds in neighborhoods like Magnolia and Laurelhurst.

To identify your exact system, check the inside face of the gutter for a stamped “Boral” mark near the downspout outlet. If the stamp has worn off, measure the gutter width at the top opening: 5-inch systems measure roughly 5 inches across the top lip, while 6-inch systems measure closer to 6.25 inches. The hidden hanger spacing also differs: Boral 5-inch systems typically used hangers every 24 inches, while the 6-inch and half-round systems used hangers every 18 inches for the heavier water load.

We are an independent service provider with no affiliation to Boral. For most Seattle homeowners, we recommend quality aftermarket equivalents that match Boral’s original specifications: .032-gauge aluminum for 5-inch systems and .040-gauge for 6-inch, both with the same baked enamel finish that held up well in our marine climate. The aftermarket route saves roughly 15-20% on material cost without sacrificing fit or longevity, and we warranty the installation either way.

Signs Your Boral Gutter Replacement Is Failing

• Sagging or pulling away from the fascia. This usually means the hidden hangers have corroded at the screw point or the fascia board itself has rotted from years of backed-up water. In Seattle’s damp climate, we see this most often on south-facing walls where thermal expansion cycles stress the fasteners hardest.
• Water overflowing the front edge during normal rainfall. The gutter isn’t necessarily too small; more often the downspout is clogged with fir needles or the gutter pitch has flattened over time. Boral systems were pitched at 1/4 inch per 10 feet originally, and that pitch degrades as fascia boards swell and contract.
• Visible seams splitting or caulk failing at joints. Boral’s original installations used standard gutter sealant that has a 10-15 year service life in our wet winters. Once the sealant cracks, water runs straight into the joint and accelerates corrosion from the inside out.
• Paint peeling or wood rot on the soffit directly below. This is the telltale sign of a leak at the back edge of the gutter, where the gutter meets the fascia. The drip edge flashing may have shifted, or the gutter apron was never properly integrated with the roof underlayment.
• Pools of standing water 24 hours after rain stops. A properly pitched gutter drains completely. Standing water means either the gutter has lost its slope or the downspout outlet is partially blocked. In winter, that standing water freezes, expands, and warps the gutter profile permanently.

Replacement Cost & What’s Included

What drives the range: accessibility (single-story vs. three-story), whether the fascia needs repair before new gutters go up, and whether we’re matching existing downspout locations or relocating them. Our estimate includes removal and disposal of the old Boral gutter, new hangers spaced to the correct interval, seamless gutter fabrication on-site for the straight runs, and connection to your existing or new downspouts. Every job carries our 90-Day Done Right Promise: if it is not right, we come back and make it right, no paperwork, no arguing.

DIY or Call Us?

There is honest work a homeowner can do safely from the ground. Clear your downspouts with a garden hose. Check that water flows freely from the outlet. Walk the perimeter after rain and note exactly where water is escaping. That information saves us time and saves you money.

What we do not recommend: climbing a ladder with a gutter full of wet debris, trying to re-pitch a 20-foot run by eye, or attempting to seamless-form gutter coil with anything less than a professional-grade brake. We have replaced too many DIY installations in West Seattle and Columbia City where the homeowner got the slope backward and routed water toward the house instead of away from it. The fascia damage from that mistake costs more than the original professional installation would have.

Call (866) 850-9676 and a live person will answer, day or night. We will give you an upfront price before any work begins, and most Boral gutter replacements are finished in one visit.

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