GSBackflow, LLC is a full service irrigation maintenance company. Our services include annual backflow testing, spring activation, irrigations repairs and maintenance as well as irrigation system winterization.

We are bonded, licensed and insured.

Backflow Testing
Keep your drinking water safe. We provide conveniently scheduled backflow testing, repair and installation services in the Greater Seattle area. Learn more.

Irrigation Activation
Allow your system to be as efficient as it can be. We can make sure that your system is operating correctly and save you valuable money. Learn more.

Irrigation Maintenance & Repairs
We are a full service irrigation company, we would be happy to provide you with a proposal for any work that you need done to your system. Learn more.

Irrigation System Winterization
Let us protect your irrigation system from frozen pipes.  Learn more.

Call 425-681-4048 or click here to book your appointment!!

Please remit payment by US Mail to the address below:

G S Backflow LLC
PO Box 1688
Snoqualmie, WA 98065

GSBackflow LLC


US Mail Address:
PO Box 1688
Snoqualmie, WA 98065

Phone:
425-681-4048

E-mail:

Mike Quinnett
Owner