Elyon Fire and Life Safety
100/100 ✓ TX Utility-Approved Tester Verified ★ 4.9 (224 reviews) 2 certified testersOn City of Garland listOn City of Grand Prairie list Backflow Testing
Verified Oct 2026 · Unclaimed listing
Backflow testing in Grand Prairie, TX
58 backflow testing businesses work within 25 miles of Grand Prairie, 2 of them based in town. Every one is on the approved tester list of 5 water utilities.
58 businesses within 25 miles
Backflow testing companies near Grand Prairie
What the badges mean
- ✓ TX Utility-Approved Tester Verified On the city list
- The company is on a water utility's own approved list (the second badge names the list). That is the utility's approval, not a state license, and it counts for that utility.
- 3 certified testers
- How many certified testers the roster lists at this business.
- ★ 4.8 (25 reviews)
- The Google rating, shown as Google reports it. It does not change the order.
Order is by our quality score, never by payment. How we verify listings.
Dyna Ten
100/100 ✓ TX Utility-Approved Tester Verified ★ 4.3 (36 reviews) 2 certified testersOn City of Grand Prairie list Backflow Testing
Verified Oct 2026 · Unclaimed listing
Western States Fire Protection
100/100 ✓ TX Utility-Approved Tester Verified ★ 3.3 (12 reviews) 9 certified testersOn City of Garland listOn City of Grand Prairie list Backflow Testing
Verified Oct 2026 · Unclaimed listing
Fire Power Systems
90/100 ✓ TX Utility-Approved Tester Verified ★ 4.2 (50 reviews) On City of Plano list Backflow Testing
Verified Oct 2026 · Unclaimed listing
Polk Mechanical
90/100 ✓ TX Utility-Approved Tester Verified ★ 3.9 (64 reviews) On City of Grand Prairie list Backflow Testing
Verified Oct 2026 · Unclaimed listing
A Trust Backflow
90/100 ✓ TX Utility-Approved Tester Verified 2 certified testersOn City of Garland listOn City of Grand Prairie list Backflow Testing
Verified Oct 2026 · Unclaimed listing
Diamond Scenery
90/100 ✓ TX Utility-Approved Tester Verified ★ 4.8 (31 reviews) On City of Garland list Backflow Testing
Verified Oct 2026 · Unclaimed listing
Automatic Sprinkler of Texas
100/100 ✓ TX Utility-Approved Tester Verified ★ 3.4 (10 reviews) 2 certified testersOn City of Grand Prairie list Backflow Testing
Verified Oct 2026 · Unclaimed listing
Koetter Fire Protection
100/100 ✓ TX Utility-Approved Tester Verified ★ 4.4 (39 reviews) 2 certified testersOn City of Plano list Backflow Testing
Verified Oct 2026 · Unclaimed listing
Crisp-Ladew Fire Protection
100/100 ✓ TX Utility-Approved Tester Verified ★ 3.9 (7 reviews) 3 certified testersOn City of Garland listOn City of Grand Prairie list Backflow Testing
Verified Oct 2026 · Unclaimed listing
Ranger Fire
100/100 ✓ TX Utility-Approved Tester Verified ★ 3.9 (11 reviews) 2 certified testersOn City of Garland listOn City of Grand Prairie list Backflow Testing
Verified Oct 2026 · Unclaimed listing
American Automatic Sprinkler
100/100 ✓ TX Utility-Approved Tester Verified ★ 4.3 (4 reviews) 2 certified testersOn City of Garland listOn City of Grand Prairie list Backflow Testing
Verified Oct 2026 · Unclaimed listing
Blaze X Sprinkler Corp
100/100 ✓ TX Utility-Approved Tester Verified 3 certified testersOn City of Garland listOn City of Grand Prairie list Backflow Testing
Verified Oct 2026 · Unclaimed listing
Allied Fire Protection
100/100 ✓ TX Utility-Approved Tester Verified ★ 4.2 (16 reviews) 6 certified testersOn City of Grand Prairie list Backflow Testing
Verified Oct 2026 · Unclaimed listing
Eagle One Fire Systems
90/100 ✓ TX Utility-Approved Tester Verified ★ 5 (132 reviews) On City of Grand Prairie list Backflow Testing
Verified Oct 2026 · Unclaimed listing
Century Fire Protection
90/100 ✓ TX Utility-Approved Tester Verified ★ 3.6 (14 reviews) On City of Grand Prairie list Backflow Testing
Verified Oct 2026 · Unclaimed listing
One Source Plumbing
90/100 ✓ TX Utility-Approved Tester Verified ★ 4.8 (637 reviews) On City of Grand Prairie list Backflow Testing
Verified Oct 2026 · Unclaimed listing
Evolution Mechanical
90/100 ✓ TX Utility-Approved Tester Verified ★ 2.6 (22 reviews) On City of Plano list Backflow Testing
Verified Oct 2026 · Unclaimed listing
Central Fire Protection
90/100 ✓ TX Utility-Approved Tester Verified ★ 3.9 (14 reviews) On City of Grand Prairie list Backflow Testing
Verified Oct 2026 · Unclaimed listing
Dynamic Systems
90/100 ✓ TX Utility-Approved Tester Verified ★ 4.8 (43 reviews) On City of Plano list Backflow Testing
Verified Oct 2026 · Unclaimed listing
PlumbCo Services
90/100 ✓ TX Utility-Approved Tester Verified ★ 4.8 (318 reviews) On City of Saginaw list Backflow Testing
Verified Oct 2026 · Unclaimed listing
Harlen Johnson HVAC, Plumbi
90/100 ✓ TX Utility-Approved Tester Verified ★ 4.8 (1209 reviews) On City of Plano list Backflow Testing
Verified Oct 2026 · Unclaimed listing
Hard Times Plumbing INC
90/100 ✓ TX Utility-Approved Tester Verified ★ 4.9 (89 reviews) On City of Saginaw list Backflow Testing
Verified Oct 2026 · Unclaimed listing
Fire Safety Solutions Inc
90/100 ✓ TX Utility-Approved Tester Verified ★ 4.3 (11 reviews) On City of Grand Prairie list Backflow Testing
Verified Oct 2026 · Unclaimed listing
Denali Construction Service
90/100 ✓ TX Utility-Approved Tester Verified ★ 4.3 (48 reviews) On City of Plano list Backflow Testing
Verified Oct 2026 · Unclaimed listing
Modern Mechanical Services
90/100 ✓ TX Utility-Approved Tester Verified ★ 4.7 (12 reviews) On City of Plano list Backflow Testing
Verified Oct 2026 · Unclaimed listing
Summit Fire & Security
90/100 ✓ TX Utility-Approved Tester Verified ★ 3.6 (39 reviews) On City of Grand Prairie list Backflow Testing
Verified Oct 2026 · Unclaimed listing
Brandt Companies
90/100 ✓ TX Utility-Approved Tester Verified ★ 4.3 (87 reviews) On City of Grand Prairie list Backflow Testing
Verified Oct 2026 · Unclaimed listing
Wild West Plumbing
90/100 ✓ TX Utility-Approved Tester Verified ★ 5 (107 reviews) On City of Grand Prairie list Backflow Testing
Verified Oct 2026 · Unclaimed listing
SFS Security Fire Systems
90/100 ✓ TX Utility-Approved Tester Verified ★ 3.8 (16 reviews) On City of Grand Prairie list Backflow Testing
Verified Oct 2026 · Unclaimed listing
Metro guide: Backflow testing in Dallas and Fort Worth: every utility's rules, filing portals and published prices in one place.
City of Grand Prairie: backflow test rules
- Who must test. Most multifamily properties, all commercial and industrial properties, irrigation meters, and single-family homes with irrigation must have backflow assemblies. Source.
- Notices and deadlines. Commercial establishments must have every assembly tested annually during the month the city assigns, by a certified tester registered with the city. Source.
- How the report is filed. Testers enter backflow test reports online in the Tokay web entry system at grandprairie.tokaytest.com. Source.
- Tester registration. Testers register every year with the Public Health and Environmental Quality Department, providing the registration form, TCEQ BPAT license, other licenses including driver's license and any fireline license, and a current gauge calibration report. Source.
- Fees. Tester registration costs $100, and testers must buy the city's approved test booklet for $25 including tax. Source.
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 in Grand Prairie and we'll text you a month before it is due, with certified local testers ready to book.
Free. One text before your test is due. No spam, cancel anytime. Privacy
Backflow testing questions in Grand Prairie
Who can test a backflow preventer in Grand Prairie?
A tester certified by Texas Commission on Environmental Quality. Your water utility may also keep its own list of testers allowed to file reports. In Grand Prairie, see City of Grand Prairie's rules below.
How many certified backflow testers are based in Grand Prairie?
Texas's roster lists no for-hire testers based in Grand Prairie itself, and 58 testing businesses are within 25 miles.
How often do I need a backflow test?
Most utilities require a test when the assembly is installed and then every year. Your utility's notice gives the due date and how the tester files the report.
Roster: Texas Commission on Environmental Quality, read October 6, 2026.
Approved list: Backflow Tester Company List, City of Houston.
Approved list: City of Plano registered backflow testers, City of Plano Utility Operations.
Approved list: City of Grand Prairie registered backflow testers, City of Grand Prairie.
Approved list: City of Garland registered backflow testers, City of Garland.
Approved list: City of Round Rock registered backflow testers, City of Round Rock Utilities and Environmental Services.
Approved list: McAllen Public Utility certified backflow testers, McAllen Public Utility.
Approved list: City of Saginaw backflow tester list, City of Saginaw Environmental Services.
Approved list: Brownsville PUB cross connection control and backflow prevention testers, Brownsville Public Utilities Board.
Approved list: City of Laredo local registered backflow prevention assembly testers, City of Laredo Utilities.
Approved list: City of Plano registered backflow testers who test without a water shutoff, City of Plano Utility Operations.
Keep looking
- Arlington, TX(6 mi)
- Irving, TX(9 mi)
- Duncanville, TX(11 mi)
- Mansfield, TX(14 mi)
- Fort Worth, TX(14 mi)
- Dallas, TX(14 mi)
- Carrollton, TX(17 mi)
- Burleson, TX(22 mi)
- Garland, TX(25 mi)
- Plano, TX(27 mi)