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Backflow testing companies in Kansas

From WaterOne's list of companies approved to test backflow assemblies in its water system, read October 1, 2026. Kansas publishes no statewide tester list we can use, so we start with its largest utility lists.

125 companies on the utility list
85 listed here, phones checked on Google

The lists we use in Kansas

Being on a utility's list means that utility lets the company file backflow test reports in its system. It is not a state license. See Kansas backflow rules.

Backflow testing businesses in Kansas

Ranked by our quality score: on the utility's current list, a phone that matches the business's Google profile, and a website. Nobody can pay to move up.

Reddi Services

90/100
✓ KS Utility-Approved Tester Verified ★ 4.8 (1709 reviews) On WaterOne list Backflow Testing

4011 Bonner Industrial Dr, Shawnee, KS 66226

Call (913) 287-5005 Details Website

Verified Oct 2026 · Unclaimed listing

J F Denney

90/100
✓ KS Utility-Approved Tester Verified ★ 4.9 (804 reviews) On WaterOne list Backflow Testing

76 Ash St, Leavenworth, KS 66048

Call (913) 682-2182 Details Website

Verified Oct 2026 · Unclaimed listing

Towns with approved testing companies

All 85 backflow testing businesses in Kansas, by town

Bonner Springs: Crosby Plumbing

De Soto: Plumbing by Fisher

Gardner: Arrowhead Lawn Irrigation, Brockman Landscape & Irrigation, Curby's Lawn & Garden LLC, Epic Landscape Productions, Rooted Landscape

Kansas City: A-1 Sewer & Septic Service, Beautiful Outdoors Lawn & Landscape, Blackfin LLC, D'Agostino Mechanical Contractors, Design Mechanical Inc, Fagan Company, Farr Mechanical, Focal Pointe, Grabill Plumbing Inc, Impact Landscape, KC Irrigation Specialists, KC Sunshine Services, Keller Fire & Safety, MR Plumber, National Fire Suppression, Paramount Landscape Inc, Pinnacle Boiler, Quick Relief Plumbing, Rodina Company Inc, Rodriguez Mechanical, True North Outdoor

Lansing: On Demand Mechanical

Lawrence: Taylor Estate LLC

Leavenworth: J F Denney

Lenexa: C&C Group, Cates Heating & Cooling, CDI Industrial & Mechanical, Cintas Fire Protection, Connelly Plumbing Solution, F.E. Moran, General Fire Sprinkler Company LLC, Hermes Landscaping, Johnson Controls, Kruse Corporation, Metro Air, P1 Service LLC, Siemens

Merriam: Green Outdoors Inc, Mears Lawn & Landscape

Olathe: Alliance Mechanical Contractors LLC, Bill's Plumbing Service, Buhrle Plumbing, Core and Main, Custom Lawn & Landscape, DS Lawn Care, Garrison Plumbing, Jayhawk Fire Sprinkler, Lawn Sprinkler Service LLC, Lifestyle Outdoor Landscaping, MW Lawn & Landscape Inc, Signature Landscape, TLC Lawn Care Inc

Overland Park: A W J Service, Aegis Fire Protection LLC, Blue River Plumbing, BOK Finanical, Conserva Irrigation, EW Plumbing LLC, Pinnacle Lawn Care, Plumbline Plumbing, Riden Plumbing, Ryan Lawn & Tree, Seasonal Solutions, The Damm Plumber, Total Property Services Inc

Pleasanton: Conley Sprinkler Inc

Salina: Kansas Backflow Testing

Shawnee: Bamford Fire Sprinkler Co Inc, Bretton's Lawn Inc, Elements Sprinkler Company, Green Lawn Inc, Reddi Services, Temp-CON Inc, W Vielhauer Plumbing LLC

Stilwell: Doctor's Lawn and Landscape

Tonganoxie: Ladd Service Co

Topeka: Kansas Fire & Safety, McElroys Inc

Questions

Where do these Kansas backflow testing companies come from?

Kansas publishes no statewide list of backflow testers that we can use, so every business here is on the approved list of WaterOne: companies allowed to file backflow test reports in that water system. We read the list on October 1, 2026 and checked each company's phone against its Google profile.

Who is allowed to test a backflow preventer in Kansas?

A tester certified as Kansas's rules require, and usually one your water utility accepts. Our Kansas rules guide links the state rule. Ask any company for the tester's certificate number before the test.

How often does a backflow assembly need testing?

Most water utilities require testable backflow assemblies to be tested at installation and then every year. Your utility's notice gives your deadline and how the report is filed.

Never miss your annual backflow test

Most water utilities require the backflow assembly on an irrigation, fire or commercial line to be tested every year, and a missed test can mean a shutoff notice. Tell us when yours was last tested and we'll text you a month before it is due, with certified local testers ready to book.

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