Backflow test pricing, without the mystery
Search for backflow test prices and you’ll find numbers all over the map — often national averages that have nothing to do with your district or your assembly. We won’t invent a Colorado price here. What we can do is show you exactly what drives the quote, so the number a tester gives you makes sense — and show you the one cost that IS on the record.
What actually drives the price
- How many assemblies you have. A house with one irrigation backflow is one test. A commercial property can have domestic, irrigation, and fire-line assemblies — each needs its own annual test and report.
- Assembly type and access. A reduced-pressure assembly in an open vault tests faster than one buried behind landscaping or in a mechanical room ceiling. Time is the tester’s cost.
- The paperwork your district requires. Some districts take an emailed report; others require the tester to file through an online portal (BSI Online or SwiftComply) — some portals charge filing fees, and testers price that in. See where reports go, district by district.
- Repairs are a separate conversation. A failed test means the assembly needs service before it can pass. A good tester quotes the test and the repair separately — ask for that up front.
- Timing. Spring sprinkler startup is the busy season along the Front Range; a test booked with the letter in hand beats one booked the week the deadline hits.
The one number on the record
Denver Water’s program FAQ addresses, verbatim, the customer whose water was shut off over an untested backflow assembly and who found a $250 charge on the bill (Denver Water, Cross-Connection Control program). Whatever a certified test costs in your area, it’s cheaper than the shutoff — before counting a day without water.
How to get a straight quote
Tell a tester three things and you’ll get a real number instead of a range: your district (it’s on the letter), your assembly count and type (also usually on the letter), and where the assembly sits. The form on this page sends exactly those details to a certified tester working your area — one tester per request, no call-center list.