1st Fire Safety
512-777-1555On this utility's approved list
98 companies on City of Round Rock Utilities and Environmental Services's tester list · company-level list (no tester count) · list version Revised 2026-06-29
On City of Round Rock Utilities and Environmental Services's approved list, version Revised 2026-06-29 · fetched 2026-11-04
Every company below is on this list; each card says “On this utility's approved list”. The list is the utility’s, not ours: we copy company names, addresses and phone numbers from it, sort them A to Z and do not rank or endorse anyone. Confirm with your utility before booking.
Backflow Prevention Device Testers Currently Registered with the City of Round Rock. Fetched 2026-11-04 (UTC).
Open the utility’s own list
The utility’s backflow program page
How we handle listings (correct or remove a listing)
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Alphabetical. Company-level list (no tester count): the utility lists companies, not individual testers.
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Other utility lists in Texas: Burleson, College Station, Corpus Christi, Galveston, Houston.
Guides: How much does a backflow test cost? Tester prices, plus what your utility adds, Failed backflow test: what failed, your repair deadline, and when to replace the device, What is a backflow test? What the tester measures, what passes, and what you have to do, Irrigation backflow testing: which device your sprinkler system needs, when it is tested, and how to winterize it.