Denver’s Most Trusted Backflow Testing & Repair Company

For nearly four decades, Backflow Tech has been the go-to partner for commercial backflow testing in Denver, Lakewood, Littleton, Aurora, Golden, and Colorado Springs. What started in 1985 as a local Denver backflow testing company has grown into one of Colorado’s most trusted cross-connection control specialists — testing more than 10,000 backflow prevention assemblies every year.

We work with property managers, building owners, municipalities, and facilities teams across Colorado to ensure their backflow preventers are tested, certified, and in full compliance with Denver Water and local water district requirements. Whether you manage a single apartment building or a portfolio of commercial properties, our certified technicians arrive on time, fully stocked with parts, and ready to test or repair on the spot.

Comprehensive Backflow Prevention Services in Colorado

Backflow Testing

Our certified technicians perform backflow preventer testing on all types and sizes of assemblies — including fire suppression systems, irrigation backflow preventers, and commercial water service lines. We test to ensure your system meets Colorado backflow testing requirements and file all reports directly with your water district.

Backflow Repair

When a backflow assembly fails inspection, fast repair is critical. Our field technicians carry an extensive inventory of parts and can perform most backflow repairs on the first visit — returning your system to original specifications without costly delays.

Backflow Installation & Replacement

Need a new containment or isolation assembly installed? Backflow Tech handles full backflow preventer installation and replacement for commercial, residential, and fire suppression applications throughout the Denver metro area.

Air Gap Verification

We perform notarized air gap verification tests, helping businesses meet Denver Water’s specific requirements. Our documentation is accepted by all major water districts across Colorado.

Portable Backflow Assembly Rental

Need temporary water access on a job site? We rent portable backflow assemblies with water meters for construction, drilling, and other temporary applications across Colorado.

Who We Serve

Backflow Tech tests and services backflow prevention assemblies for a wide range of Colorado businesses and property types, including:

  • Office buildings and commercial properties
  • Apartment buildings and residential complexes
  • Retail locations and shopping centers
  • Hospitals and medical facilities
  • Restaurants and food service operations
  • Gas stations and convenience stores
  • Schools and government buildings
  • Manufacturing and processing plants
  • Agriculture, parks, and golf courses
  • Sports facilities, water parks, and amusement parks
  • Churches, synagogues, temples, and mosques

Backflow Tech proudly serves many of the largest corporations and multi-location customers in Colorado, delivering reliable, prompt, and courteous service on every visit.

Licensed, Certified & Fully Insured

All Backflow Tech cross-connection technicians are certified by the American Backflow Prevention Association (ABPA) and/or the American Society of Sanitary Engineering (ASSE). We are a registered Fire Suppression Contractor with the Colorado Division of Fire and Safety, and a proud member of the Foundation for Cross-Connection Control and Hydraulic Research (USC).

All test kits are calibrated every six months to meet or exceed ASSE standard 1064. We are fully insured for business liability and worker’s compensation — certificates furnished upon request.

Serving the Entire Front Range

From our base in the Denver metro area, Backflow Tech provides backflow testing and repair services across Colorado including Denver, Lakewood, Golden, Littleton, Aurora, and Colorado Springs. If your property requires backflow testing near you, our team is ready to schedule a visit and keep your water system in full compliance.

Have Questions About Backflow Testing?

Whether you’re wondering what a backflow preventer does, why backflow testing fails, how often testing is required in Colorado, or what backflow testing costs — our team is here to help. Contact Backflow Tech today to schedule service or get answers from a certified specialist.

Ready to Schedule a Test?

Backflow Tech serves many of the largest corporations and multi-location customers in Colorado. Our testers arrive on site with extensive inventories of parts and supplies for immediate repairs.