Gutter installation cost in Seattle (2026 guide)

Seattle gutter costs at a glance

Angi’s Seattle cost page puts a typical gutter installation at $691 to $1,757, with an average of about $1,223, and the per-foot range at $4 to $40 across all materials. For gutter guards, Angi’s Seattle page reports $977 to $2,232 (average about $1,185), or $7 to $14 per foot including materials and labor.

One line is easy to miss when you hold those numbers against a quote: sales tax. Angi notes that Seattle’s 10.35% sales tax applies to both labor and materials on gutter work, so ask every bidder whether the price in front of you includes it.

Seattle price list

Published figures for orientation only, not quotes. The installer who measures your home gives you the actual price.

Sample estimate: a two-story home with guards

To get from unit prices to a budget, measure the eaves that need a gutter and add up the downspout lengths. How to measure your home for new gutters shows how.

An example, not a quote: 160 feet of gutter and five downspouts totaling about 90 feet.

• 160 feet of seamless aluminum at HomeGuide’s national range of $6 to $12 per foot installed: about $960 to $1,920
• 90 feet of downspout at $2 to $4 per foot: about $180 to $360
• Guards on 160 feet at Angi’s Seattle range of $7 to $14 per foot: about $1,120 to $2,240
• Sales tax of 10.35% on the whole job: about $235 to $470

Before tax, gutters and downspouts come to roughly $1,140 to $2,280, and the full job with guards to roughly $2,260 to $4,520. With tax, the complete system lands at roughly $2,490 to $4,990. Removal of the old gutters, fascia repair and work on underground drain lines are not included.

How Seattle compares with other Western cities

Angi’s averages for other cities we cover in the West:

Of the 21 city averages in our gutter cost guide, the Seattle figure of about $1,223 is in the middle of the range.

What shapes a Seattle quote

A long wet season, not a violent one

Sea-Tac Airport averages about 39.3 inches of precipitation a year (NOAA 1991–2020 normals), spread over roughly 150 days, and November alone brings more than 6 inches. Seattle rain is rarely intense, so clogging is a bigger risk than sheer volume. That shifts the budget toward guards and larger 3x4-inch downspouts, which clog less. Where a big roof plane or a valley feeds one run, 6-inch gutters are still worth the extra $1 to $2 per foot. See 5-inch vs. 6-inch gutters.

Needles, moss and guards

Fir and cedar needles, moss and roof grit wash into gutters almost every day from October to May. Oregon State University Extension explains that roof moss traps debris, holds moisture and, over time, slows or blocks water flowing off the roof. When moss is scraped or treated, much of it ends up in the gutters. Fine micro-mesh guards stop needles and moss clumps. In the sample estimate, guards cost about as much as the gutters and downspouts together, so the choice of guard matters as much as the choice of gutter. See moss, needles and gutters in the Pacific Northwest.

Labor and access

Angi reports labor of $50 to $100 an hour in Seattle, with higher costs where the roof line is unusual, the home is more than one story high or access is difficult. Steep lots and tall daylight-basement walls fall into that group, so tell the installer about them before the visit.

Crawl spaces and drain lines

Many Puget Sound homes sit over crawl spaces on glacial soils that drain slowly. A quote should say where each downspout discharges: into a working drain line, or well away from the house onto ground that slopes away. If the existing underground lines are clogged with needles and roots, water backs up at the house. Ask the installer to check them before the new gutters go up. See underground downspout drainage and downspouts and your foundation.

Timing: book the dry months early

July to September is the busiest and most practical time for gutter work around Puget Sound. Sealants cure in dry weather, and new gutters and guards are in place before the first fall storms. Schedules fill before October, so ask for dates in spring. See the best time of year to install gutters.

Registration and paperwork in Washington

Washington requires construction contractors to register with the Department of Labor & Industries (L&I). Registration requires a surety bond and general liability insurance, and you can look up a contractor’s registration, bond and insurance on L&I’s website before you sign. Seattle, Tacoma and other cities also require business licenses, and permit rules for gutter work are set locally. A complete quote lists:

• The L&I registration number
• Linear feet, gutter size, material and thickness
• Number and size of downspouts, and where each one drains
• Hanger type and spacing
• Guard product, how it is fastened and its warranty
• Removal of the old gutters
• Whether sales tax is included

Ways to save in Seattle

• Compare prices with tax included. At 10.35%, tax can be the whole difference between two close bids.
• Deal with roof moss first. Have it treated before the new gutters and guards go on, so the debris does not end up in the new system.
• Order guards with the gutters. One visit and one setup instead of two.
• Ask about larger downspouts. 3x4-inch downspouts clog less than 2x3-inch ones. See downspout size and placement.
• Get at least two written quotes for the same scope. See how to compare gutter quotes.

For prices on your own home, one call connects you with an independent installer who serves your ZIP code. Our Seattle page covers the Puget Sound region from Bellevue to Tacoma, and there is a separate page for Bellevue.

Sources

• Angi: How much does gutter installation cost in Seattle, WA?
• Angi: How much does gutter guard installation cost in Seattle, WA?
• HomeGuide: Seamless gutters cost
• HomeGuide: Gutter installation cost
• Climate of Seattle (NOAA 1991–2020 normals, Sea-Tac Airport)
• Oregon State University Extension: How to control roof moss and prevent long-term damage
• Washington L&I: Register as a contractor