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Certified Backflow Testing
Home
Service Area
FAQ
CBT Process
Blog
Repairs & Installations
Rental
About
Join Us
More
  • Home
  • Service Area
  • FAQ
  • CBT Process
  • Blog
  • Repairs & Installations
  • Rental
  • About
  • Join Us
  • Home
  • Service Area
  • FAQ
  • CBT Process
  • Blog
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Areas We Test In

If you're searching for backflow testing near me, look no further! We perform backflow testing anywhere in King, Snohomish, and Pierce Counties, including but not limited to the cities listed below. Even if you're in another county, we can still get your backflow assembly tested - give us a call!

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Bellevue

Backflow testing in Bellevue happens all year long, with a majority of letters being sent in April.

Issaquah

City of Issaquah backflow testing is done all year long, with most reports due in May and June.

Kirkland

Kirkland backflow testing is done year round, annually from your last test. 

Newcastle

For those in Newcastle backflow testing is done in March.

Mercer Island

Backflow testing in Mercer Island is done in June.

Redmond

City of Redmond backflow testing is done throughout the year, although certain areas are due in June.

Renton

Backflow test in Renton is done throughout the year, although specific water purveyors require testing in June.

Sammamish

Sammamish backflow testing happens all year with an emphasis in May and June. 

Seattle

City of Seattle backflow testing is based on the 12 month cycle from your last test. 

Woodinville

All backflow testing in Woodinville is due by the end of August annually.

Not seeing your city on our list? Give us a call at 425-427-8889. We test backflow assemblies anywhere in Washington State and can get your backflow assembly tested and the report submitted so that you stay compliant with your water purveyor's annual testing requirement!

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We Test Western Washington! Following is a partial list of water purveyors we work with:

Alderwood Water District | Belfair Water District 1 | City of Bellingham | City of Bonney Lake

Alderwood Water District | Belfair Water District 1 | City of Bellingham | City of Bonney Lake

Alderwood Water District | Belfair Water District 1 | City of Bellingham | City of Bonney Lake

Alderwood Water District | Belfair Water District 1 | City of Bellingham | City of Bonney Lake

Alderwood Water District | Belfair Water District 1 | City of Bellingham | City of Bonney Lake

Alderwood Water District | Belfair Water District 1 | City of Bellingham | City of Bonney Lake

City of Bothell | Chelan PUD | City of Issaquah | City of Bellevue | City of Duvall | WD119

City of Bothell | Chelan PUD | City of Issaquah | City of Bellevue | City of Duvall | WD119

City of Bothell | Chelan PUD | City of Issaquah | City of Bellevue | City of Duvall | WD119

City of Bothell | Chelan PUD | City of Issaquah | City of Bellevue | City of Duvall | WD119

City of Bothell | Chelan PUD | City of Issaquah | City of Bellevue | City of Duvall | WD119

City of Bothell | Chelan PUD | City of Issaquah | City of Bellevue | City of Duvall | WD119

City of Fife | City of Lacey | Cedar River | WD20 | WD90 | City of Tacoma | Lakehaven | Ames Lake

City of Fife | City of Lacey | Cedar River | WD20 | WD90 | City of Tacoma | Lakehaven | Ames Lake

City of Fife | City of Lacey | Cedar River | WD20 | WD90 | City of Tacoma | Lakehaven | Ames Lake

City of Fife | City of Lacey | Cedar River | WD20 | WD90 | City of Tacoma | Lakehaven | Ames Lake

City of Fife | City of Lacey | Cedar River | WD20 | WD90 | City of Tacoma | Lakehaven | Ames Lake

City of Fife | City of Lacey | Cedar River | WD20 | WD90 | City of Tacoma | Lakehaven | Ames Lake

City of Kent | Mercer Island | City of Renton | Covington | Black Diamond | City of Auburn | Skyway

City of Kent | Mercer Island | City of Renton | Covington | Black Diamond | City of Auburn | Skyway

City of Kent | Mercer Island | City of Renton | Covington | Black Diamond | City of Auburn | Skyway

City of Kent | Mercer Island | City of Renton | Covington | Black Diamond | City of Auburn | Skyway

City of Kent | Mercer Island | City of Renton | Covington | Black Diamond | City of Auburn | Skyway

City of Kent | Mercer Island | City of Renton | Covington | Black Diamond | City of Auburn | Skyway

WD111 | City of Milton | City of Algona | City of Pacific | WD45 | Seattle Public Utilities | WD22

WD111 | City of Milton | City of Algona | City of Pacific | WD45 | Seattle Public Utilities | WD22

WD111 | City of Milton | City of Algona | City of Pacific | WD45 | Seattle Public Utilities | WD22

WD111 | City of Milton | City of Algona | City of Pacific | WD45 | Seattle Public Utilities | WD22

WD111 | City of Milton | City of Algona | City of Pacific | WD45 | Seattle Public Utilities | WD22

WD111 | City of Milton | City of Algona | City of Pacific | WD45 | Seattle Public Utilities | WD22

Highline Water District | WD54 | WD125 | Fall City | NE Sammamish Sewer & Water | City of Sammamish

Highline Water District | WD54 | WD125 | Fall City | NE Sammamish Sewer & Water | City of Sammamish

Highline Water District | WD54 | WD125 | Fall City | NE Sammamish Sewer & Water | City of Sammamish

Highline Water District | WD54 | WD125 | Fall City | NE Sammamish Sewer & Water | City of Sammamish

Highline Water District | WD54 | WD125 | Fall City | NE Sammamish Sewer & Water | City of Sammamish

Highline Water District | WD54 | WD125 | Fall City | NE Sammamish Sewer & Water | City of Sammamish

Coal Creek | City of Carnation | Spring Glen | North Bend | Sallal | Riverbend | Wilderness Rim | WD

Coal Creek | City of Carnation | Spring Glen | North Bend | Sallal | Riverbend | Wilderness Rim | WD

Coal Creek | City of Carnation | Spring Glen | North Bend | Sallal | Riverbend | Wilderness Rim | WD

Coal Creek | City of Carnation | Spring Glen | North Bend | Sallal | Riverbend | Wilderness Rim | WD

Coal Creek | City of Carnation | Spring Glen | North Bend | Sallal | Riverbend | Wilderness Rim | WD

Coal Creek | City of Carnation | Spring Glen | North Bend | Sallal | Riverbend | Wilderness Rim | WD

Cross Valley Water District | Highland WD | Mukilteo Water | Olympic View Water | Silver Lake Water

Cross Valley Water District | Highland WD | Mukilteo Water | Olympic View Water | Silver Lake Water

Cross Valley Water District | Highland WD | Mukilteo Water | Olympic View Water | Silver Lake Water

Cross Valley Water District | Highland WD | Mukilteo Water | Olympic View Water | Silver Lake Water

Cross Valley Water District | Highland WD | Mukilteo Water | Olympic View Water | Silver Lake Water

Cross Valley Water District | Highland WD | Mukilteo Water | Olympic View Water | Silver Lake Water

Snohomish County PUD 1 | City of Snohomish | City of Monroe | City of Sultan | City of Marysville

Snohomish County PUD 1 | City of Snohomish | City of Monroe | City of Sultan | City of Marysville

Snohomish County PUD 1 | City of Snohomish | City of Monroe | City of Sultan | City of Marysville

Snohomish County PUD 1 | City of Snohomish | City of Monroe | City of Sultan | City of Marysville

Snohomish County PUD 1 | City of Snohomish | City of Monroe | City of Sultan | City of Marysville

Snohomish County PUD 1 | City of Snohomish | City of Monroe | City of Sultan | City of Marysville

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Certified Backflow Testing is a division of STOP Inc. #SEATTTO917MU  #SEATTTO797NZ
Tacoma | Bellevue | Issaquah | Sammamish | Redmond | Kirkland | Woodinville | Renton | Bothell | Mercer Island

King, Snohomish, Pierce Counties


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