Licensed • Insured • Same-Day Availability When Open

Certified backflow testing just $95.

BlueLine Backflow provides licensed inspection, testing, and repair for commercial, residential, fire, agricultural, and irrigation systems across Colorado and Wyoming. Straightforward pricing, complete documentation, no surprises.

Commercial & Residential Testing
Fire & Irrigation Systems
Emergency Repair Support
Serving Colorado & Wyoming
Licensed & Insured Technicians
Full Test Documentation Provided
Same-Day Availability When Open
Familiar with CO & WY Water Authorities
Built on Boulton Backflow Testing Legacy

Simple, transparent pricing

No hidden fees. Certified backflow testing with complete documentation and water authority filing included. Trip and filing fees may apply.

Why backflow testing matters

Backflow prevention assemblies protect drinking water from contamination caused by pressure changes, damaged components, or failed valves. When these devices are not working correctly, contaminants from irrigation systems, fire lines, or other sources can reverse direction and enter the public water supply.

Most municipalities in Colorado require annual testing by a certified technician. BlueLine provides the testing, documentation, and repair follow-up to keep your property in compliance and your water system protected.

  • Protects drinking water from cross-contamination
  • Supports compliance with local water authority requirements
  • Identifies failed or deteriorating devices before they become bigger problems
  • Provides documentation for annual testing records

Primary service areas

We serve residential and commercial customers across Northern Colorado, the Front Range, and Wyoming.

Greeley Evans Windsor Severance Timnath Garden City Johnstown Milliken Campion Ault La Salle Eaton Kersey Platteville Pierce Loveland Fort Collins Longmont Brighton Erie Broomfield Denver Aurora Lakewood Thornton Arvada Boulder Cheyenne

Plus many locations not listed — contact us to confirm service in your area.

Why choose BlueLine

We built BlueLine Backflow to make certified backflow service easier to schedule, better documented, and more responsive than the alternatives.

Licensed & Insured

All work is performed by licensed and insured technicians with experience across commercial, residential, and specialty system types.

Fast Scheduling

We keep scheduling simple. Use our online form or call directly to set up testing or repair service at a time that works for you.

Clear Documentation

You receive complete test reports and records following every service call, making it straightforward to satisfy water authority reporting requirements.

Emergency Support

When a device fails and you need a fast response, BlueLine offers emergency service for time-sensitive repair situations.