Best Backflow Preventer Certification in Phoenix AZ

DO NOT USE THIS COMPANY.  They over-charge for labor on a simple job.  They will never give you the price up-front and they will  make a mountain out of a mole-hill.  They truly are intent on charging whatever they want after the fact.     FIND ANOTHER COMPANY!     These other YELP reviews are phony.

Dave F.

Two weeks ago WSI installed an irrigation system replacing an existing system.  I was confused when I asked for a whole system replacement and used the word irrigation but expected sprinkler system to be included, but was informed sprinklers were not because I said irrigation.  They removed my old system on time and were very polite.  Since paying them I have found several emitters that do not work (won't turn on or won't turn off) several trees that were to have three emitters have only one.  Trees I had planted had root and water stakes that I paid nearly twenty dollars for were not used and disappeared.  The water emitters were to be placed inside these stakes. I suggest anyone who uses Williams Sprinkler & Irrigation be sure of their terminology and verify what is to be reused (as my stakes) and receive a copy of the warranty (I did not), I also suggest they not allow themselves to be rushed thru a check of the system on the last day and not pay in full until the system had run for at least one or two complete cycles.  Nate has not responded to my requests to replace the non functioning emitters, explain or return my deep water spikes, or assist me in finding or adding the missing emitters.  It has now been two weeks
Georgia M. 04/21/2018

Dave is easy to work with, honest, and very helpful. The next time I need any backflow preventer valve work on the west or north side, I'll be calling him again.