Durance Plumbing is a  WSSC certified backflow valve testing  company. If you’ve received a letter from WSSC that your yearly backflow preventer valve testing needs to be done, give us a call. We will schedule a date for testing and send the results in to the WSSC. Call us for any and all your residential and commercial plumbing needs. We provide plumbing services in the Maryland counties of Howard, Anne Arundel, Prince George’s and Montgomery. Call us at (301) 270-6663 or via email using the form below.

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