| Quick facts | Answer |
|---|---|
| Cost range | $45-$200 per hour; average project $303 (typical $167-$443) |
| Time | Testing is required annually; submit reports within 7 days |
| Who's qualified | Missouri-certified backflow tester (ABPA or ASSE certified) |
Who can perform backflow preventer testing in Kansas City?
State rules require testing by a certified assembly tester. That certification comes from passing written and hands-on exams through ABPA or ASSE, and it must be renewed every 3 years. Kansas City contractors also need City Planning & Development and Finance business licenses.
When is annual backflow testing due?
Missouri requires air gaps, reduced pressure principle assemblies, and double-check valve assemblies to be inspected when installed and at least annually. Reduced pressure assemblies must be tested each year no later than 30 days past the anniversary date set by your water supplier.
What does KC Water require after a backflow test?
A Missouri-certified tester must submit the inspection report online. If water was turned off for the work, KC Water charges a $75 turn-off/turn-on fee, and the report is due within 7 days of restoration or service may be disconnected again with another $75 fee.
Which backflow devices are approved in Missouri?
Missouri only allows double check valve assemblies, reduced pressure principle assemblies, or approved air gaps as containment devices. Assemblies must be approved by the USC Foundation for Cross-Connection Control and Hydraulic Research or ASSE.
What to do next
- Check the anniversary date for your annual backflow test set by your water supplier, and schedule before it passes.
- Ask the tester for proof of their Missouri backflow certification (ABPA or ASSE) and confirm it is current within 3 years.
- Confirm the device type - double check valve, reduced pressure principle assembly, or approved air gap - is on Missouri's approved list.
- Get a written quote showing hourly rate, and budget for the $75 KC Water turn-off/turn-on fee if water must be shut off.
- Call (816) 750-5918 or email [email protected] for a free quote from a licensed, insured Kansas City plumber.
KC Plumb is a free referral service: an independent contractor does the work and may pay us a referral fee. You never pay us anything.
