New Construction Plumbing in Bothell, WA & Seattle
A Plumbing Contractor Who Keeps Pace With Your Build
A build schedule doesn't wait for a plumber who's behind. Timberline Plumbing is a licensed plumbing contractor providing new construction plumbing throughout Bothell, Brier, King County, Snohomish County, and Seattle, including rough-in through trim-out for new single-family homes and ADUs. We show up on schedule, communicate clearly with your team, and get inspections passed the first time — not the third.
What Builders and Homeowners Are Saying
Where you'll find us:
Seattle — every neighborhood, not just the ones nearest to us
Bothell & Brier — home turf
Kirkland & Bellevue
Kenmore & Lynnwood
Redmond & Sammamish
Edmonds & Mukilteo
Issaquah
If your address falls anywhere on that map, you're not a stretch for us — you're exactly who we built this for.
Why Builders Keep Us on the Job
The same standard applies whether it's one ADU or a full custom home:
Detail-Oriented and Organized
Rough-in and trim-out scheduled to match your build's actual timeline, not a generic estimate.
Strong Client Care and Follow-Through
We're still your plumber after the final walkthrough, not just through the punch list.
Honors Warranties and Takes Care of Clients
New construction plumbing work is backed by warranty, the same as every other job we do.
Goes Above and Beyond for Customers
We'll flag a spec issue before it holds up an inspection, not after.
More Knowledgeable and Helpful Than the Rest
We know what inspectors in this area actually look for, so it doesn't take three visits to pass.
24-Hour Emergency Availability
A rough-in issue that threatens your schedule gets an answer fast, not a callback next week.
What We Handle on New Construction Projects
- Rough-In Plumbing — Supply and drain lines installed and pressure-tested before the walls close up.
- Trim-Out Plumbing — Fixtures, faucets, and final connections installed once finishes are in.
- ADU Plumbing — Full plumbing systems for accessory dwelling units, from permit set to final trim-out.
- New Single-Family Home Plumbing — Complete plumbing systems for ground-up residential builds.
- Builder and Contractor Coordination — Scheduled and communicated to keep pace with your project's timeline, not ours.
How a New Construction Project Actually Gets Handled
Here's what happens once you reach out about a build:
01
Share Your Plans and Timeline
Send over the permit set or plans, and let us know your target schedule.
02
We Scope Rough-In and Trim-Out Together
We walk through what's needed and when, matched to your build's phases.
03
We Show Up on Schedule and Pass Inspection
Rough-in, trim-out, and everything in between, done to keep your project moving.
New Construction Plumbing Throughout Bothell, Brier & the Seattle Area
From an ADU build in Sammamish to a new single-family home in Issaquah, our new construction plumbing service covers King County and Snohomish County end to end, plus the city of Seattle and its surrounding communities.
Timberline Plumbing is a licensed plumbing company based in Brier, Washington, serving Bothell and the greater Seattle area, available 24 hours a day at (425) 399-0958.
Common Questions About New Construction Plumbing
Does Timberline Plumbing do plumbing for ADUs?
Yes. Timberline Plumbing handles full plumbing systems for accessory dwelling units, from the permit set through final trim-out.
How far in advance should I schedule a plumbing contractor for new construction?
As early as possible — ideally once your permit set is finalized, so rough-in can be scheduled to match your build's actual timeline rather than squeezed in later.
Do you work directly with general contractors and builders?
Yes. Timberline Plumbing regularly coordinates directly with general contractors and builders on new construction and ADU projects.
Can you handle plumbing for a full custom home build, not just an ADU?
Yes. Timberline Plumbing provides complete plumbing systems for new single-family homes, from rough-in through trim-out.
Do you serve new construction projects throughout Snohomish County?
Yes. Timberline Plumbing provides new construction plumbing throughout Snohomish County and King County, in addition to Seattle.
New build, ADU, or a project already underway — Timberline Plumbing will keep pace with your schedule throughout Bothell, Brier, King County, Snohomish County, and Seattle.
