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McCarthy Services

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8198 Terminal Road
Lorton, Virginia 22079

855-218-5544 Link to Website

Christian Dunning, General Manager

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McCarthy Services
If you need a new HVAC system, heating & air conditioning service or repair, or you need a plumber McCarthy Services is the one to call. We do it all! McCarthy Services is a full service heating, cooling and plumbing company located in Alexandria, Virginia. We have been providing top quality services to residents in the Northern Virginia and Washington DC Metro area for over 20 years.

At McCarthy Services, we strive to provide not only the best service – we strive to provide exceptional service. We give you upfront estimates before any work is done, and do our best to get the job done right, the first time. If you are not satisfied with our work for any reason, we will make every effort to make it right and meet your expectations. If we can't meet your expectations, we'll refund your money per our Exceptional Service Guarantee.*

You can count on the Alexandria air conditioning, heating and plumbing professionals at McCarthy Services to provide you with prompt, professional, friendly service. 

We treat you and your property with respect by calling before we arrive, providing an honest, upfront estimate you approve before any work is done, and taking care of your property by using shoe covers and drop cloths as needed. And, when our employees visit your home, you can feel comfortable because they have passed national background and drug tests, and are equipped to provide you with the service you need.


Services Provided for HVAC Systems/Air Conditioning/Furnaces:

  • Emergency Repairs
  • Furnace Service and Repairs
  • Air Conditioning System Service and Repairs
  • HVAC Service and Repairs
  • Heat Pump Service and Repairs
  • New/Replacement Furnace Installation
  • New/Replacement Air Conditioning System Installation
  • New/Replacement HVAC Installation
  • New/Replacement HVAC System Installation
  • New/Replacement Heat Pump Installation
  • Furnace Preventative Maintenance and Tune-Ups
  • Air Conditioning System Preventative Maintenance and Tune-Ups
  • HVAC System Preventative Maintenance and Tune-Ups
  • Heat Pump Maintenance and Tune-Ups
  • Energy Efficient Digital Thermostat Installation
Plumbing Services:
  • Emergency Service
  • Hot Water Heater Installation and Repair
  • Tank-less Water Heater Installation and Repair
  • Drain and Pipe Cleaning
  • Sewer and Water Line Repairs
  • Clog Removal
  • Garbage Disposal Installation and Repair
  • Faucet/Sink, Showers/Tub and Toilet Installation and Leak Repair
  • Whole Home Water Softener System Installation and Repairs
  • Water Purification System Installation and Repairs
  • Sump Pump Installation and Repairs
  • Water Conservation Plumbing
  • Preventative Maintenance
Extras for Your Home:
  • Duct Cleaning
  • Whole Home Humidifier Installation, Maintenance and Repair
  • Whole Home Dehumidifier Installation, Maintenance and Repair
  • Air Purifiers and Germicidal UV-Light Installation, Maintenance and Repair
  • Home Energy Consumption Audits
  • Home Service and Maintenance Plans

Accomack County: Dumfries

Alexandria City County: Alexandria

Arlington County: Arlington

Culpeper County: Warrenton

District of Columbia: Washington D.C.

Fairfax County: Alexandria, Arlington, Burke, Centreville, Chantily, Clifton, Dunn Loring, Fairfax, Fairfax Station, Falls Church, Great Falls, Herndon, Lorton, McLean, Oakton, Reston, Springfield, Vienna

Fauquier County: Bealton, Broan Run, Carlett, Midland, Nokesville, Warrenton, Clarksburg, Dickerson

Howard County: Brookeville

Loudoun County: Aldie, Ashburn, Centreville, Chantily, Great Falls, Hamilton, Leesburg, Lovettsville, Purcellville, Round Hill, Sterling, Waterford

Manassas City County: Mannassas

Montgomery County: Ashton, Barnesville, Beallsville, Bethesda, Boyds, Brinklow, Brookeville, Cabin John, Chevy Chase, Clarksburg, Damascus, Derwood, Dickerson, Gaithersburg, Germantown, Glen Echo, Kensington, Olney, Poolesville, Potomac, Rockville, Sandy Spring, Silver Spring, Spencerville, Takoma Park

Prince Georges County: Silver Spring, Tacoma Park

Prince William County: Bristow, Broad Run, Catharpin, Catlett, Dumfries, Gainesville, Haymarket, Manassas, Nokesville, Occoquan, Woodbridge

(No Comment)
David came out this morning to install two new cutoff valves for our washing machine. He called ahead and did a great job communicating with me throughout the project. I would specifically like to call out David’s flexibility in waiting for our cleaning crew to leave before he got started. It was my fault the times overlapped and he could have easily asked to come back at a later date/time. Instead, he let them finish, which allowed me to get the job done on the day I wanted/needed to. I’m consistently pleased with the support I get from McCarthy Services, and this was another example, but David’s patience and professionalism went above even those high expectations.
Randall did an awesome job. He was quiet and professional, and went out of his way to complete the job efficiently. He even came back a second day to add support to a pipe he thought wasn't properly braced (we weren't even aware that there was an issue but he took the initiative). Great job, Randall!

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