New Gutter Installation — Seattle, Bellevue, and Surrounding Areas

WA contractor #1STCHCC921OE. Serving King, Snohomish and Pierce counties.

New construction. Or a house that never had gutters sized for where it actually sits.

Plenty of homes in the Pacific Northwest were built with gutters that technically work in mild conditions — until the first real November hits and you're watching water run off the roofline and pool along the foundation because the system can't handle the volume.

New installation means starting from scratch with the right sizing, the right pitch, and downspouts that actually route water away from the structure.

How we approach new installation

Site assessment first. We look at the roofline geometry, the pitch, the tree coverage, the existing grade around the foundation, and the downspout routing options. A house under a mature Douglas fir canopy on a flat lot needs a different system than an open two-story on a sloped property.

We fabricate seamless runs on-site. One continuous piece per roofline run — no joints, no kits, no pre-ordering.

Sizing is done for actual conditions. We factor in roof square footage, rainfall volume, and downspout capacity. Undersized gutters overflow even when they're installed correctly.

We install with proper hanger spacing for Pacific Northwest load — closer intervals than the national standard to handle standing water weight during heavy events.

Frequently Asked Questions

How long does new installation take?
Most single-family homes: 1 day. Complex rooflines or multi-story homes may take 2 days. We'll scope this during the site assessment.
Do I need gutters on every side of the house?
Not always. Some rooflines shed water away from the foundation naturally. We'll assess which sides need coverage and which don't — no reason to install gutters where they aren't doing a job.
What size gutters do I need for Seattle rain?
Depends on your roof area and pitch. Standard 5" K-style handles most single-family homes. Larger roofs or steep pitches may need 6" gutters with 3x4 downspouts for adequate flow capacity. We size based on your actual conditions, not a generic chart.

Get a site assessment and estimate for new gutter installation.