Mountlake Terrace Plumber — Looking After the Original Postwar Grid and the Neighborhoods Around It
Trenchless, low-impact water line & sewer replacement — by our own crew, never subcontracted.
Done Right Plumbing is a licensed plumber working across Mountlake Terrace, from the original grid of streets between Lake Ballinger and Town Center to the neighborhoods east of I-5 along the 220th Street corridor and the Gateway district growing up around the light rail station. Our shop is on 204th Street SW in Lynnwood, just north of the Terrace’s city line, which makes this one of the shortest drives on our board. The city was built faster than almost any suburb in the state, and its plumbing is aging on the same tight schedule.
Plumbing Services in Mountlake Terrace
Trenchless Water Line Replacement
Pull a new service line under the small, mature lots of the original grid without trenching a driveway or a seventy-year-old hedge.
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Trenchless Sewer Repair
Line or burst a failing lateral in place instead of opening the front yard all the way to the street.
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Sewer Line Repair & Replacement
Spot repairs, new cleanouts and full replacements on concrete and cast-iron laterals in the ground since the 1950s.
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Drain and Pipe Services
Kitchen, bath and main-line drain work, with a camera down the line before anyone quotes.
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Water Heater Installation & Repair
Tank and tankless replacements done complete, with straps, pan, expansion tank and the permit.
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24/7 Emergency Plumbing
Round-the-clock response from a shop that is minutes away.
Learn More →Why Mountlake Terrace Homeowners Choose Trenchless
Mountlake Terrace barely existed in 1949. That year two developers bought an abandoned airstrip just over the county line and started filling it with small cinder-block houses for returning veterans, priced under five thousand dollars; within five years there were more than five thousand residents, and the city incorporated in November 1954. That speed is written into the plumbing. Whole streets got the same galvanized supply lines, the same cast-iron and concrete sewer laterals and the same crawlspace runs within a few years of each other, so they reach the end of their lives together too.
Water in the Terrace starts at Spada Lake in the Cascades, is treated by the City of Everett, sold wholesale to the Alderwood Water & Wastewater District, and delivered by the City of Mountlake Terrace’s own water division, which owns the mains and the meters. Sewer is the city’s too, and most of what leaves your house is pumped to the treatment plant in Edmonds, with a share flowing through Brier and Lake Forest Park to King County’s Brightwater plant. From the meter to the house, and from the house out to the city’s main, the lines are yours, and those are the ones we repair and replace.
The lots are small and the trees are not. Seventy years of growth has turned the original grid into a canopy, with driveways, fences and established beds packed onto lots that were platted for a cinder-block starter home. That is why trenchless methods earn their keep here: when a service line or a lateral fails under all of that, two small pits beat a trench through the middle of it.
Recent Work in Mountlake Terrace
In April, Nick and Jeremy replaced the hot and cold supply lines to a kitchen in a crawlspace house along the 220th Street corridor, just east of I-5. The old lines were galvanized, corroded and staining the stem wall where they came up through the floor. The crew ran new PEX-A through the crawlspace, tied it into the existing plumbing with new fittings, and finished under the sink with a copper manifold on strut, new quarter-turn angle stops and braided supply lines, all covered by a two-year warranty against leaks. Earlier in the spring a five-man crew handled a much bigger job elsewhere in the Terrace: a five-foot excavation at the front of a house to build a new cleanout at the old concrete-to-cast-iron connection, then a roughly fifty-foot seamless liner from there to the city main, replacing the entire sewer without trenching the yard.
About Mountlake Terrace
Mountlake Terrace takes its name from the view its founders had of Mount Rainier and Lake Washington from the old airstrip, and it still reads as the tidy postwar suburb it was planned to be: modest houses on tree-lined streets, split by I-5, with Town Center, the new city hall and the library on one side and Lake Ballinger and its park on the western edge. The light rail station that opened in August 2024 has brought apartments and a new neighborhood, Gateway, to the freeway’s edge, so the city now has two very different kinds of plumbing, and we work on both.
FAQs About Plumbing in Mountlake Terrace
Who do I call about water and sewer in Mountlake Terrace, the city or a district?
The City of Mountlake Terrace. Its water division delivers water bought wholesale from the Alderwood district, and its sewer division sends most of what it collects to the Edmonds treatment plant. The city owns the mains and the meter; the service line to your house and the side sewer to the main are yours, and those are ours to fix.
My house is one of the original 1950s Terrace homes. What is probably still original?
More than you would like: galvanized supply lines under the crawlspace, a concrete or cast-iron sewer lateral, and the valves and stubs at every fixture. Galvanized narrows from the inside for decades before it leaks, and the old laterals crack and let roots in. A camera down the sewer and a look under the house tell you where yours stands.
Can you re-pipe through a Mountlake Terrace crawlspace without opening walls?
Often, yes. The 1950s houses here sit on crawlspaces, which gives us a way to run new PEX-A from the water heater or the main to a kitchen or a bath from underneath, coming up where the old line did. The April job above was done exactly that way, with the only finish work happening inside the sink cabinet.
Do you cover both sides of I-5, from Lake Ballinger to Gateway?
Yes. The freeway splits the city but not our route: the original grid around Town Center and Lake Ballinger, the 220th Street corridor on the east side, and the Gateway district by the light rail station are all inside a few minutes of our Lynnwood shop. Response time does not change from one side of I-5 to the other.
Do I need a permit for sewer or water line work in Mountlake Terrace?
Yes. Sewer repairs, including trenchless liners, are permitted through the City of Mountlake Terrace’s building department, which is how the spring liner job above was permitted. We pull the permit, schedule the inspection and include the fee in the quote, so the record of the work stays with the house.
How fast can you get to Mountlake Terrace from your shop?
Faster than anywhere else we work. Our shop is on 204th Street SW in Lynnwood, just north of the Terrace’s city line, so most addresses in the city are five to ten minutes away. For an emergency that means the crew and the equipment arrive together quickly, and for scheduled work there is no travel time padded into your bill.
Licensed, Bonded & Insured
WA Contractor License #DONERRP852N5
Done Right Plumbing is fully licensed, bonded and insured in Washington State — family-owned and serving the greater Seattle area since 2011, with twelve technicians and our own trenchless, jetting and camera equipment. Your Mountlake Terrace job is run by a Done Right crew from the quote through cleanup; we do not subcontract.
Call Done Right Plumbing for Mountlake Terrace Plumbing Services
A galvanized line that has finally let go, a lateral that backs up every winter, or a water heater on its last season? Call for a free estimate, or request a callback and we will reach you at a time that works.