Mertens Service Inc., St. Louis, MO: Backflow Testing

Certification

✓ On Missouri's certified backflow tester roster Phone matches its Google profile

Certified tester	Certificate	Expires
Matt T. Mertens	13-5306	February 2027

From the Missouri Department of Natural Resources roster, read October 6, 2026. The roster lists people, not companies; these are the certified testers it lists for this business. Ask which tester will do your test, and your utility may also require the tester to be registered with it.

Call (314) 845-1500 Visit website More testers in Missouri

Where you will find Mertens Service Inc.

These are the city pages close enough for this business to appear on.

Other backflow testers nearby

Business	Services	Distance
Bieg Plumbing	Backflow Testing	2 mi
Lemay Plumbing, Inc.	Backflow Testing	2 mi
Wm. G. Cocos Plumbing Co.	Backflow Testing	3 mi
Haberberger Mechanical	Backflow Testing	4 mi
Plumbing Engineers	Backflow Testing	4 mi
R.J. Wachter Plumbing	Backflow Testing	4 mi

Questions about Mertens Service Inc.

Is Mertens Service Inc. licensed?

Yes. Missouri records showed an active certificate (#13-5306) when we last checked in Oct 2026. Ask to see it before work starts, since a certificate can lapse between checks.

What does Mertens Service Inc. do?

Their listing covers backflow testing. Call to confirm the service you need, because offerings change.

What areas does Mertens Service Inc. serve?

They are based in St. Louis, Missouri, within driving distance of St. Louis, Kirkwood, Webster Groves, Arnold, Fenton. Service areas are set by the business, so confirm yours when you call.

How do I reach Mertens Service Inc.?

Call (314) 845-1500. Their website is linked on this page.

Is this your business?

Claim this listing free: add the utilities you file with, your service area and your residential test price, and get annual test-due requests from property owners.

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