Snohomish County
Plumbers in Snohomish County, WA
Countywide, the median home was built in 1990 (Census ACS 2024 five-year estimates): 35 percent of the county's 331,530 housing units predate 1980, including 12 percent built before 1960, while 33 percent date from 1980 to 1999 and 32 percent from 2000 on.
Key facts
- Serving
- All of Snohomish County
- From our shop
- Our shop is in Monroe, in this county
- Water
- City of Everett, directly and through the cities and districts that buy its water (including Snohomish County PUD); some systems add their own wells. Everett water averaged 12.5 mg/L in 2025 (soft); Cross Valley wells average 94 mg/L (moderately hard); Stanwood's wells measured 188 ppm (very hard) in its 2021 report
- Estimates
- Free, upfront flat-rate pricing
- Emergencies
- 24/7 at (425) 845-3535
Plumbing across Snohomish County
Most of the county drinks Everett water. Rain and snowmelt collect in Spada Reservoir at the head of the Sultan River, are treated at Chaplain Reservoir, and reach about 670,000 people, or 75 percent of the county's homes and businesses, directly or through districts and cities that buy from Everett. It is soft, averaging 12.5 mg/L of hardness in 2025. Snohomish County PUD serves more than 23,000 water customers, mostly with Everett water plus some wells.
Groundwater is another story. Cross Valley Water District draws about 61 percent of its supply from 11 wells averaging 94 mg/L, moderately hard, and Stanwood's city wells measured 188 ppm, very hard, in its 2021 report. In USGS sampling of western Snohomish County wells, 94 percent were soft or moderately hard, but high iron and manganese were fairly common. The county also has about 84,000 private septic systems.
The county tracks flooding on the Snohomish, Skykomish, Snoqualmie, Stillaguamish and Sauk rivers, and its records list large floods in 1990, 1995, 1996, 1997, 2003, 2006, 2007 and 2009. Along the lower Skykomish, houses built at low elevations still flood. Winters also bite harder inland: NOAA's 1991 to 2020 normals give Monroe about 60 freezing nights a year, compared with about 29 at Paine Field in Everett.
Communities we serve
Chain Lake High Bridge Cathcart Three Lakes Silver Firs Clearview Fobes Hill Lake Roesiger Machias Startup
Near Spada Reservoir, Chaplain Reservoir, Skykomish River, and everywhere in between.
Local know-how
Plumbing in Snohomish County: what to know.
Backflow valves for valley homes
FEMA recommends sewer backflow valves on every pipe entering a flood-prone home, installed by a licensed plumber, so floodwater and sewage can't back up through toilets and drains. For homes on the Skykomish and Snohomish floodplains, ask us about one with your sewer line work.
Freezing nights up the valley
Monroe averages about 60 freezing nights a year, roughly double Paine Field's 29. Disconnect hoses, insulate pipes in crawl spaces and garages, and know your main shutoff. The PUD can't fix frozen pipes past the meter; our emergency line runs 24/7.
Iron and manganese in well water
USGS found iron above 300 micrograms per liter in 20 percent of well samples and manganese above 50 in 41 percent. EPA ties those levels to reddish or black staining and sediment. We flush sediment from water heaters and replace stained fixtures.
Water running right now?
Shut off the main water valve, turn off the water heater, and call us. Our emergency line answers 24/7.
Services
Our services in Snohomish County.
- 01Plumbing
Drain Cleaning
Slow sinks, backed-up showers and main-line clogs cleared with professional cable machines and hydro-jetting, with a camera inspection when we need to see what's causing it.
- — Kitchen, bathroom, laundry and floor drains cleared
- — Main sewer line cleaning from the cleanout
- — Hydro-jetting to scour grease, scale and roots off the pipe walls
Typical price: $250–$550 for a standard drain cleaning
Learn more - 02Plumbing
Water Heater Repair & Installation
Tank and tankless, gas and electric: same-day repairs, code-compliant replacements and upgrades, with the unit sized to your household.
- — Diagnosis and repair of thermostats, elements, gas valves, igniters and leaks
- — Tank water heater replacement, same day when possible
- — Tankless water heater installation and upgrades
Typical price: $2,200–$4,000 for a replacement, depending on the unit
Learn more - 03Plumbing
Leak Detection & Repair
Leaks found with electronic detection instead of guesswork, then fixed for good: pipes, fittings, valves, fixtures, slabs and burst lines.
- — Leak detection behind walls, under floors and in slabs
- — Pipe, fitting and valve repairs (copper, PEX, galvanized, CPVC)
- — Burst and frozen pipe repair
Typical price: $500–$1,100 for most leak repairs
Learn more - 04Plumbing
Whole-Home Repiping
Aging galvanized or polybutylene supply lines replaced with PEX or copper, with small access openings, a pressure test and a written warranty.
- — Whole-home PEX or copper repipe
- — Galvanized steel and polybutylene replacement
- — New shutoff valves at fixtures
- 05Plumbing
Sewer Line Service & Repair
Main sewer lines camera-inspected, cleaned of roots and grease, and repaired or replaced when the pipe itself has failed.
- — Sewer camera inspection with the footage explained
- — Main line cleaning and root cutting
- — Hydro-jetting for grease and root buildup
- 06Heating & cooling
HVAC Repair & Installation
Furnaces, heat pumps, air conditioners and ductless mini-splits repaired, maintained and installed, plus duct cleaning and repair.
- — Furnace repair, maintenance and replacement
- — Heat pump repair and installation
- — Air conditioner service and installation
Also available in Snohomish County: faucet, toilet and fixture installation, 24/7 emergency plumbing, and the Dam Good Defenders Club membership.
- Upfront, written flat-rate price before any work begins
- Dam Good Guarantee: if something we fixed isn't right, we come back and make it right, no charge.
- WA contractor license BEAVEPI741J3
Good questions
Snohomish County plumbing FAQ.
Don't see your question? Call or text (425) 845-3535. A real person answers, 24/7.
How often does a septic system need inspection in Snohomish County?
Every three years for a standard gravity system, and every year for low pressure distribution, mound and sand filter systems, per the Snohomish County Health Department. Starting November 1, 2026, anyone selling a property with septic must also meet inspection requirements before closing, and system records are searchable in the department's OnlineRME database.
Is Snohomish County water hard?
Most of it is soft. Everett's Spada Reservoir water, which reaches 75 percent of the county's homes and businesses, averaged 12.5 mg/L in 2025. Well water is the exception: Cross Valley Water District's wells average 94 mg/L, Stanwood's city water measured 188 ppm, and many private wells carry iron or manganese. If you see scale or stains, have the water tested before choosing a fix.
Nearby areas we serve
Sources for local facts on this page
- https://www.everettwa.gov/ArchiveCenter/ViewFile/Item/1244
- https://www.everettwa.gov/DocumentCenter/View/40866/2024-Detailed-water-quality-summary
- https://www.everettwa.gov/480/Water-quality
- https://www.snopud.com/account/services/water/
- https://www.crossvalleywater.net/192/Water-Hardness
- https://www.stanwoodwa.org/Archive/ViewFile/Item/503
- https://pubs.usgs.gov/wri/1996/4312/report.pdf
- https://www.epa.gov/sdwa/secondary-drinking-water-standards-guidance-nuisance-chemicals
- https://www.snohd.org/690/Septic-FAQs
- https://www.snohd.org/682/Maintaining-Your-Septic-System
- https://lynnwoodtimes.com/2026/04/18/septic-systems/
- https://snohomishcountywa.gov/2149/River-Flooding
- https://www.snohomishcountywa.gov/DocumentCenter/View/6699/Flood-Hazard-Management-Issues-in-Snohomish-County
- https://www.fema.gov/sites/default/files/documents/fema_protect-your-home-from-flooding-brochure_2020.pdf
- https://www.snopud.com/outages-safety/prevention/frozen-water-pipes/
- https://www.ncei.noaa.gov/access/services/data/v1?dataset=normals-annualseasonal-1991-2020&stations=USC00455525,USW00024222,USW00094290&format=json
- https://www.census.gov/geographies/reference-files/time-series/geo/gazetteer-files.html
- https://censusreporter.org/profiles/05000US53061/
- https://www.usgs.gov/special-topics/water-science-school/science/hardness-water
Plumbing problem in Snohomish County? Let's fix it right.
Free estimates, upfront flat-rate pricing, and a 24/7 emergency line at (425) 845-3535.