Welcome to AJ's Backflow Testing, LLC

Residential and Commercial Backflow Testing

your cross-connection connection!

Welcome to AJ’s Backflow Testing where we offer backflow preventers and parts at great prices in Greeley, Colorado. In business since 2002, we are positive that you will be impressed with our services and materials. We use only top of the line products and all our technicians are ASSE certified. We will install your new backflow preventer and repair it as well. Here at AJ’s Backflow Testing we complete each project to the highest standards of excellence and most projects are done in the same day. Our technicians are fully aware of the fact that these systems can leak at any time which is why we offer emergency services along with extended hours for your convenience.

We offer fair prices and honest services with references available upon request. If you have any question feel free to call AJ’s Backflow Testing…we are always on hand to answer your questions and concerns!

service areas

Proudly serving Greeley, Colorado and surrounding areas.

Coupon & Special Offers

Our Location

Conveniently located in Greeley, CO

Contact Us

We'd love to hear from you!

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Hours of Operation
Monday - Saturday
7:00 am to 5:00 pm
24-Hour Emergency Service Available
American Backflow Prevention Association
Colorado Backflow Prevention Association
ASSE Certified
A J's Backflow Testing LLC BBB Business Review