King County · About 30 min from our base
Backflow Testing in Mercer Island, WA
State-certified backflow testing, repair and installation for Mercer Island homes, HOAs and businesses, with your test report filed with your water purveyor for you.
- WA-certified testers
- Reports filed for you
- 24/7 emergency dispatch
Mercer Island homes tend to come with elaborate landscaping, automatic irrigation, pools, water features and waterfront docks, and nearly every one of those is a cross-connection that needs the right protection. The Town Center adds restaurants and mixed-use buildings with commercial assemblies.
We test, repair and install assemblies all over the island and file every report with your purveyor.
Backflow services in Mercer Island
Who is your water purveyor in Mercer Island?
Your purveyor is the water utility that sends your annual test notice and receives your test report. Depending on your address, Mercer Island properties are commonly served by the City of Mercer Island.
Not sure which one is yours? Check the top of your water bill or the test notice itself. Or just give us your address when you book and we'll figure it out and send your report to the right place.
Local know-how
Large irrigation systems here often have multiple zones and sometimes fertilizer injection. If your system injects anything, a double check or vacuum breaker isn't enough, and we'll help you upgrade to a reduced-pressure assembly.
Neighborhoods we serve
- Town Center
- North End
- East Seattle
- First Hill
- Mercerdale
- South End
- Lakefront homes
ZIP codes
98040, plus surrounding unincorporated areas.
How backflow testing works in Mercer Island
Book
Call or book online. Have your test notice handy if you got one.
We test
A certified tester checks every valve with a calibrated gauge, usually in under 30 minutes per assembly.
We fix
If it fails, we explain why and quote the repair. Most repairs can be done on the spot.
We file
Your passing report goes to your purveyor, and a copy comes to you.
Mercer Island backflow FAQs
Who sends backflow notices on Mercer Island?
The City of Mercer Island's water utility tracks testable assemblies on the island and sends the annual notices. We submit your passing report to them.
Can you test while we're away?
Yes. If the assembly is outdoors and reachable, give us access details and we'll email you the results.