Mercer Island's Plumber for Fast Repairs & 24/7 Emergencies
From same-day repairs to middle-of-the-night emergencies, our licensed plumbers keep Mercer Island homes running with honest, upfront pricing.
4.9 rating · 50+ Google reviews- Licensed & InsuredBonded WA contractor
- 24/7 EmergencyWe answer live, day or night
- Same-Day ServiceBook before 2pm, Mon–Fri
- Serving Since 198935+ years in Seattle
Your Trusted Plumber in Mercer Island
Mercer Island homeowners have trusted All Phase Plumbing since 1989 for straightforward, licensed plumbing work at a fair, upfront price. We handle the small jobs and the big ones, from a worn-out shut-off valve to a complete sewer line replacement.
We know a plumbing problem rarely waits for a convenient time. That's why our Mercer Island plumbers move fast on leaks, clogs, and water heater failures, and back every repair with a written workmanship guarantee.
Plumbing Services in Mercer Island
Plumbing Repair
From leaky faucets to burst pipes, we fix it right the first time with upfront pricing and no hidden fees.
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Drain Cleaning
Slow or fully blocked drains cleared fast. We tackle kitchen, bathroom, and main sewer line clogs.
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Water Heaters
Tank and tankless installation, repair, and replacement. Hot water when you need it, guaranteed.
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Sewer Service
Camera inspections, hydro-jetting, and sewer line repair to keep everything flowing smoothly.
Learn MoreWhy Mercer Island Homeowners Choose Us
35+ Years Serving the Area
All Phase Plumbing has worked in and around Mercer Island since 1989, long enough to know the plumbing quirks common to homes in the area.
Family-owned since 1989Licensed & Insured
Every technician we send to a Mercer Island home is fully licensed in Washington State, bonded, and insured, with no exceptions.
Fully licensed WA contractorWritten Guarantee
We stand behind every repair in Mercer Island with a written workmanship guarantee, not just a verbal promise.
Workmanship guaranteed in writingFull-Service Plumbing for Mercer Island Homes
Our licensed plumbers handle the full range of residential plumbing in Mercer Island: faucet and fixture replacement, toilet repairs, water line work, water heater service, and complete repipes. Whatever the age or style of your home, we bring the right parts and bring everything up to current Washington code.
Every visit starts with a clear, flat-rate quote, so you know the price before we begin. No surprise add-ons, no pressure, just honest work from a team that treats your Mercer Island home like its own.
Drain & Sewer Specialists in Mercer Island
Slow drains and sewer backups are some of the most common calls we get in Mercer Island. We clear blockages fast with hydro-jetting and mechanical snaking, then run a camera down the line so you can see the real cause instead of guessing.
When a sewer line is cracked, root-invaded, or collapsed, we offer trenchless repair and replacement that restores the line without tearing up your Mercer Island yard, driveway, or landscaping.
24/7 Emergency Plumbing in Mercer Island
Plumbing emergencies don't keep business hours. A burst pipe, an overflowing toilet, or a water heater failure can cause serious damage fast. Our emergency line is answered around the clock, and we can usually have a licensed plumber to your Mercer Island home quickly to stop the damage and make the repair.
Because we never subcontract, the plumber who arrives is a fully licensed, bonded, and insured member of our own crew, the same standard you get on any scheduled visit.
James R.
Mercer Island, Mercer Island
Fast, professional, and fairly priced. The plumber explained everything and fixed our issue the same day.
Sarah M.
Mercer Island, Mercer Island
Showed up on time, kept everything clean, and the price matched the quote exactly. Highly recommend.
David C.
Mercer Island, Mercer Island
Had an after-hours emergency and they were out quickly to stop the leak. Real lifesavers.
Plumbing Emergency in Mercer Island?
We're Minutes Away.
Mercer Island Plumbing Questions
Book a Mercer Island Plumber
Call now for fast, same-day plumbing service across Mercer Island, or send the form and we'll reach out right away.
Call Us(206) 309-1088