Maryland Plumbing and Heating, Gaithersburg, MD

Approvals

✓ On the City of Rockville list Phone matches its Google profile

City of Rockville certified backflow prevention testers, as of July 17, 2026. Being on this list means the utility lets the company file backflow test reports in its water system; it is not a state license.

Ask for the certificate number of the tester who will do your test, and check that your own water utility accepts reports from this company.

Call (301) 990-2891 More testers in Maryland

Price reports

What a backflow test costs in Gaithersburg

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Published prices nationwide

$29.99 to $100 per assembly

$0$25$50$75$100$125

Based on 14 published prices · Read Oct 2026 Prices testing businesses list on their own websites, from our cost guide. Listed prices, not what people paid.

Every published price, with its source: what a backflow test costs.

Failed test? Published repair, rebuild and replacement prices: what a backflow repair or replacement costs.

Where you will find Maryland Plumbing and Heating

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

Other backflow testers nearby

Business	Services	Distance
The Drain Guys	Backflow Testing	under 1 mi
Master Plumbing & Mechanical	Backflow Testing	under 1 mi
Gaithersburg Plumbing, Inc.	Backflow Testing	under 1 mi
Robert A. Tull, Inc.	Backflow Testing	under 1 mi
Mallick Plumbing & Heating, Inc	Backflow Testing	under 1 mi
Harvey W. Hottel	Backflow Testing	under 1 mi

Questions about Maryland Plumbing and Heating

Is Maryland Plumbing and Heating approved to test backflow assemblies?

Maryland Plumbing and Heating is on the City of Rockville list, as of July 17, 2026. That means the utility lets the company file backflow test reports in its system; it is not a state license. Ask for the tester's certificate number before the test.

What does Maryland Plumbing and Heating do?

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

What areas does Maryland Plumbing and Heating serve?

They are based in Gaithersburg, Maryland, within driving distance of Gaithersburg, Rockville, Silver Spring, Beltsville, Columbia. Service areas are set by the business, so confirm yours when you call.

How do I reach Maryland Plumbing and Heating?

Call (301) 990-2891.

Compiled from public records and public business information. Not an endorsement. Check licensing before you hire.

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