Schedule a Backflow Test or Repair

Uncle Gnome’s Certified Backflow Testing & Repair proudly serves Western Washington.

We’re committed to protecting your drinking water and delivering dependable, high-quality service you can trust.

From residential homes to commercial properties, we provide reliable, efficient backflow prevention assembly testing and repair — done right the first time.

Fully licensed and insured.

Book your backflow test online 24/7 through our secure scheduling system.

We proudly service these

neighborhoods and cities:

Seattle: North Seattle, Ballard, Greenwood, Wedgewood, Roosevelt, U-District, Interbay, Downtown, South Lake Union, Capitol Hill, Georgetown, Beacon Hill, White Center…and More!

Cities: Seattle, Shoreline, Lynnwood, Edmonds, Mountlake Terrace, Bellevue, Mercer Island, Kirkland, Medina, Issaquah, Redmond, Bothell, Kenmore, Woodinville, Mukilteo, Federal Way, Renton, Kent, Puyallup, Sumner, Tacoma, Olympia, Lacy, Marysville, Snohomish, Maple Valley, Bonney Lake, Stanwood, Ferndale, Mount Vernon, Fairhaven, Bellingham, Blaine…and More!

We test & repair backflow prevention assemblies at a variety of facilities.

Here’s our short list:

Medical and Dental: Hospitals, Medical Clinics, Research Facilities, Offices with X-Ray Facilities, Laboratories, Dental Offices, Veterinary Clinics

Schools: Grade Schools, Junior High and High Schools, Technical Schools, Colleges, Universities'

Construction: New Buildings, Concrete/Gravel/Sand/Asphalt Plants

Residences: Home Owner Associations, Property Management Firms, Apartment Complexes, Condominiums, Town Homes, Family Homes, Private Homes, Retirement Homes

Government Facilities: Fire Departments, City Buildings, County Buildings, Federal Buildings

Commercial Buildings: Shopping Malls, Hotels, Motels, Factories, Grocery Stores and Supermarkets, Strip Malls, Convenient Stores, Warehouses'

Food Service: Restaurants, Coffee Shops, Bars, Breweries and Distilleries

Agriculture and Farming: Food Processing Plants, Dairies

Service Industry: Commercial Dry Cleaners, Laundromats and Laundries, Automotive Repair Shops, Car Wash Facilities, Plating Plants, Pumping Stations, Waterfront Facilities

Other Facilities We Test: Buildings with Fire Service, Buildings with Water Storage Tanks, Buildings with Boilers, Buildings with Sewage Ejectors, Properties with Automatic Lawn Sprinklers or Irrigation (Commercial and Residential), Solar Heating Systems, Temporary Services such as Backflow Prevention Assemblies on Fire Hydrants

…and More!