Commercial Plumbing in Snohomish, WA
Storm drains, side sewers and building plumbing for Snohomish businesses, from the shops a block off First Street to the commercial lots along Bickford Avenue
Stollwerck Plumbing & Sewer is commercially licensed and insured above Washington’s minimums, and we work for Snohomish business and property owners on storm drains, side sewers and the plumbing inside their buildings. Our crews bring the camera and the trailer jetter from Mukilteo, find what is wrong, and tell you what fixing it involves before anything is dug.
Real Commercial Work in Snohomish
In March 2026 the owner of a commercial property on the Bickford Avenue corridor, at the north end of town, called about a parking lot storm drain that would not drain. Willie and Logan brought a trash pump and our trailer-mounted jetter, which runs at 4,000 psi and 9 gallons a minute, and cleared most of the clog. It was a root mass about three feet in from the street-side basin and about five feet down. That basin runs about 15 feet to a second basin that collects water from farther up the lot and carries it to a retention pond. They explained what a permanent repair at the root mass would take, and the owner chose to keep that option for later if the roots come back.
Downtown, in September 2025, Logan and Justin pulled the toilet in a barbershop a block off First Street and ran our camera through the closet flange to find out why the building’s sewer was failing. The line leaves the building, turns to run along the east wall, and has a break about seven and a half feet down against that wall before it turns toward the street. A clog stopped the camera about halfway across the first lane, roughly ten feet short of the main by the position of the manhole. Both roof vents were also blocked where they turn down into the ground.
We also work in Snohomish’s small condominium buildings. In July 2026, Willie and Chase opened a wall north of downtown and found a three-inch drain line with a towel-rack screw driven through it years earlier. They cut out about 18 inches, replaced it with new ABS and two no-hub bands, and tested it by running water from the unit above.
What We Do for Snohomish Businesses
Storm Drain and Catch Basin Clearing
Parking lot basins collect leaves, silt and roots. We jet them with a trailer unit, follow the line between basins, and tell you where the clog was and why.
Side Sewer Camera Inspection
We camera from a cleanout or a pulled toilet, measure the depth and distance to any break, and show you where it sits relative to your building and the street. Our sewer camera page explains the inspection.
Building Drains and Vents
We repair drain lines inside occupied buildings and check the roof vents. Our commercial plumbing page covers the full list.
Snohomish-Specific Considerations
A Combined Sewer Downtown
The City of Snohomish runs its own wastewater treatment plant on the Snohomish River. In and around the historic district, its older collection system is combined, so storm water and sewage share pipes, while the northern part of the city separates them. A downtown building’s side sewer is often old, deep and close to the street, as the barbershop’s was.
Retention Ponds on the North End
On the commercial lots along Bickford Avenue, the property we jetted drains its parking lot through on-site basins to a retention pond rather than into the sewer. A clogged basin floods the lot long before the water reaches the pond.
The Historic District
The Snohomish Historic District, which takes in downtown and the blocks around First Street, was listed on the National Register of Historic Places in 1974. Its buildings carry old drain lines, and we plan the work around keeping the business open.
Commercial Plumbing FAQ for Snohomish
Can you clear a clogged parking lot storm drain in Snohomish?
Yes. We bring a trailer-mounted jetter that runs at 4,000 psi and 9 gallons a minute. On the Bickford Avenue corridor in March 2026, Willie and Logan cleared most of a root clog about three feet in from the street-side basin and five feet down, and walked the owner through a permanent repair.
Why does a downtown Snohomish building’s sewer need special care?
Because the City of Snohomish’s older collection system in and around the historic district is combined, carrying both sewage and storm water, and the side sewers serving downtown buildings are often old and deep. In a barbershop a block off First Street, our camera found a break about seven and a half feet down.
Can you camera a sewer line all the way to the main under the street?
Usually, unless a clog stops the camera first. Downtown in September 2025, Logan and Justin followed a barbershop’s line under the first lane of the street until a clog stopped it about ten feet short of the main. Clearing that clog first lets the camera reach the rest of the line on a second pass.
Serving Snohomish From Mukilteo
Our shop is in Old Town Mukilteo, about half an hour from downtown Snohomish. We bring the jetter trailer and the camera on the first visit, so the problem can usually be found before we leave.
Commercial Plumbing Trouble in Snohomish
Call the office with what is failing and when the building can have us in.