Backflow Testing in Columbus, Ohio: Rules, Costs, Testers

Backflow testing in Columbus, Ohio

In the Columbus, Ohio area, each water utility runs its own backflow program: City of Columbus Division of Water and Del-Co Water Company each set who must test, when the report is due and how it is filed. 89 listed testing companies work within 30 miles of Columbus.

Each fact links the page it came from. Utility and state pages were read October 6 and 7, 2026.

Who has to test in Columbus, Ohio

The rule depends on the utility that sends your water bill. Each line below is from that utility's own page.

City of Columbus Division of Water: A required backflow prevention device must be tested by an approved plumber or contractor at least once every 12 months.
Del-Co Water Company: Customers should have each backflow assembly inspected every year by a certified inspector, repair any that fail, and send the annual inspection reports to Del-Co Water.

Sources: City of Columbus Division of Water; Del-Co Water Company

How each utility takes the test report

Most utilities here take the report online through a vendor portal; the tester files it. Open a utility for its own deadline, filing steps and fees.

Utility	Report filed through	Approved tester list	Published fee
City of Columbus Division of Water	Tokay	Yes, loaded here	Yes
Del-Co Water Company	See the utility page	Online lookup	Yes

What testing costs in Columbus, Ohio

These are amounts the utility or a company published on its own page, shown as published, never averaged.

City of Columbus Division of Water: Besides the tester's charge, the City bills an annual administrative fee of $25.00 per device (City Code 1105.09).
City of Columbus Division of Water: New testers pay a $100.00 BCO registration fee, then a $25.00 annual registration fee due February 15 each year.
Del-Co Water Company: The annual registration fee is $200.00 per tester, paid by check or cash.

Sources: City of Columbus Division of Water; City of Columbus Division of Water; Del-Co Water Company

If the test is missed

City of Columbus Division of Water: Failing to provide and maintain a required assembly may lead the Division of Water to shut off water to the property.

Source: City of Columbus Division of Water

Ohio rules behind the local programs

State rules set the minimum; the utilities above add their own deadlines and tester registration.

OAC 3745-95-06(C)(3): applies to containment-principle backflow preventers required by rules 3745-95-04 and 3745-95-05 (hazard premises and auxiliary-water cases), at the consumer's expense.
Tests are also required at installation or repair.
OAC 3745-95-06(C)(3). No state tester licence is named in the rule; each supplier approves its testers.

Sources: Ohio rule; Ohio rule; Ohio rule

Common questions

Who requires backflow testing in Columbus, Ohio?

Your water utility. City of Columbus Division of Water and Del-Co Water Company each run a program; check the notice your utility sends for your due date.

How is the test report filed?

Online in most cases: at least one utility here uses Tokay. The tester files the report; ask them to send you a copy.

Backflow testing companies near Columbus

What the badges mean

✓ OH 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.

S A Comunale Co Inc (Columbus)

100/100

✓ OH Utility-Approved Tester Verified #A5162 ★ 2.9 (10 reviews) 12 certified testersOn City of Columbus list Backflow Testing

1399 Ohlen Ave, Columbus, OH 43211 · under 1 mile from Columbus

Call (614) 291-7001 Details Website