DFW's Most Trusted
Backflow Testing Team
Annual testing, certification, and reporting for residential and commercial properties. Book in 60 seconds — we handle the rest.
Since 1998
Family Owned
Thousands
Tests Every Year
4.8 Stars
97 Google Reviews
Licensed
RMP M-43681
What Our Customers Say
“Very professional people, easy to communicate with. I highly recommend them.”
Joking Panda144
2 months ago
“Extremely helpful and communicative! Got our back flow tested and set us up on a yearly schedule so that the city is happy and we don't have to worry about it. Glad we called 1-A services!”
Kathy Murray
10 months ago
“Called 1-A services and they had Willam out the same day to test our back flow valve. He was super informative and helpful in understanding the importance of why these are needed.”
Casey Fillhart
4 months ago
How It Works
Book Online or Call
Fill out the form above or call us. Takes 60 seconds.
We Confirm Your Appointment
Our office calls you to lock in a date and time.
We Show Up and Get It Done
Our licensed tech tests, certifies, and handles the paperwork.