As we celebrate 25 years in business, we are pleased to announce that Maryland Plumbing & Heating will become part of O’Connor Plumbing! The same services will continue to be provided and there are no changes to you! Please call 301-540-5050 to reach O’Connor’s service line. You can learn more about O’Connor Plumbing at


Contact Maryland Plumbing & Heating

Plumbing & Heating

8020 Queenair Drive STE A
Gaithersburg, MD 20879

Phone: 301-990-2891301-990-2891