• 240-245-6636
  • Year Established: 1949
  • Homeowners Served: 30,000+
  • Number of Employees: 120
  • License Number(s): #19678, WSSC 1266
"O'Connor Plumbing is a family-owned business proudly serving the District of Columbia, Virginia, and Maryland suburbs since 1949. We train and employ the area's top service technicians, so you can be assured your plumbing concerns will be handled professionally and efficiently anytime you need us, and at an affordable price! "

Thomas O'Connor, Sr., Owner & CEO
Principal Owners / Key Managers
Thomas O'Connor, Sr., Owner & CEO
Kevin O'Connor, CFO
Tommy O'Connor, CPO
Five Star Guarantee
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Homeowner Reviews

“Andrew went above and beyond, staying late on a couple of occasions to make sure the job was done right.”

“Fantastic customer service provided by O'Connor Plumbing & Heating! I had an urgent plumbing issue and had a plumber at my house that same day within two hours. Very professional and friendly. The plumber explained exactly what needed to be done, how much it would cost, and cleaned up everything perfectly.”

“Cody is very professional and knowledgeable. Cody came to replace my faucet and do some other plumbing for me. He did an excellent job and went above and beyond.”

  • 240-245-6636
  • Year Established: 1949
  • Homeowners Served: 30,000+
  • Number of Employees: 120
  • License Number(s): #19678, WSSC 1266
"O'Connor Plumbing is a family-owned business proudly serving the District of Columbia, Virginia, and Maryland suburbs since 1949. We train and employ the area's top service technicians, so you can be assured your plumbing concerns will be handled professionally and efficiently anytime you need us, and at an affordable price! "

Thomas O'Connor, Sr., Owner & CEO
Principal Owners / Key Managers
Thomas O'Connor, Sr., Owner & CEO
Kevin O'Connor, CFO
Tommy O'Connor, CPO
Top Company Features
  • Five Star Guarantee
  • Licensed
  • General Liability Insurance
  • Workers' Compensation Insurance
Services Offered
Plumbing service to cover all your home's needs
Water heater repair and replacement
Sewer and drain cleaning of all types
Underground pipe replacement
High-pressure jetting of sewers
Fiber-optic camera inspection of drains
Insurance
General Liability & Workers' Compensation
Warranties / Guarantees
Complete satisfaction guarantee
Lifetime parts warranty
10-year warranty water service and sewer replacements
Recognitions
A+ Rating with the BBB
Maryland Plumbing-Heating-Cooling Contractors Association (PHCC-member
Frederick County Maryland Chamber of Commerce member