HVAC & Plumbing Services Fairfax, VA

At HVAC & Plumbing Unlimited, we have proudly provided great plumbing, heating, and air conditioning services to residential and commercial customers throughout the Fairfax, Springfield, Alexandria, Lorton, Washington, DC, and other nearby areas for two full decades.

We are your one-stop shop for plumbing, heating, and cooling, and we know you’ll think we offer the best HVAC services in Northern VA after we visit your home! If you’ve got a heating, cooling, or plumbing problem – or just want to upgrade your existing unit – contact us today!

Our Services

Whether you need a new HVAC system, maintenance on an existing air conditioner, or a quick plumbing repair, our technicians are ready to help. Our services include:

Our Products

From home cooling equipment to heavy-duty commercial heaters, we know how to install and maintain all sorts of HVAC systems, plumbing pipes, and water heaters. Some of the products we sell and service include:

  • Residential air conditioners and commercial roof-top units
  • Heat pumps
  • Oil and gas furnaces
  • Chillers and boilers
  • Traditional and tankless water heaters
  • Ductless air conditioners and heat pumps
  • Cooling towers

Visit our Carrier products page to view each product >>

In addition to tankless water heaters and home heating and cooling systems, we offer a full range of indoor air quality products such as humidifiers, ultra violet lights, ventilators, and high-efficiency filters. We also sell and install great control equipment such as programmable and zoned thermostats and gas log sets.

As a Carrier Factory Authorized Dealer, the experts at HVAC & Plumbing Unlimited can provide not only top-tier service, but the best heating and cooling products and systems in the business. Carrier is an industry-leading manufacturer that we are always proud to bring to our Northern Virginia clients.

Plumbing Services

When it comes to your plumbing needs, we take the same care and preparation whether it’s a new sink or garbage disposal, or you want to upgrade to a tankless water heater. Our plumbing professionals can help you with everything from toilet repair and installation to sump pump services and drain cleaning.

The indoor service lineup we offer our residential and commercial customers includes the following services:

  • Faucet installation and repair
  • Sink installation and repair
  • Drain clearing service
  • Garbage disposal installation and repair
  • Toilet installation and repair

 Heating and AC Services

Great home comfort starts with professional installation. We begin every installation project with a full load calculation to determine exactly how much heating or cooling power the home needs, then work with each customer to pick out a system that will meet those needs. Our licensed and certified technicians work diligently to make sure every system we install meets the manufacturer’s specifications.

We offer:

Even a properly sized and properly installed system needs a little routine maintenance to keep running at maximum efficiency. Our HVAC experts know how to to service heating and cooling systems from Carrier and all other manufacturers, and we offer annual service agreements to make that maintenance as easy as possible. When there’s an issue that needs professional attention, our repair team is ready to step in and help, and our emergency repair services are available 24/7 throughout the year for heat, cooling and plumbing problems.

Our Qualifications

We take pride in offering top-quality services, and that begins with top-quality people. The majority of our technicians hold NATE certification, the most highly regarded credential in the industry, and we are constantly working to stay abreast of the latest techniques in the field. It’s this commitment to excellence that has made us a top plumbing and HVAC contractor in the Northern VA area.

HVAC & Plumbing Unlimited Service Areas

We serve areas throughout Northern Virginia, including Aldie, Alexandria, Annandale, Arlington, Ashburn, Bailey’s, Brambleton, Bristow, Burke, Centreville, Chantilly, Clifton, Fairfax, Fairfax Station, Falls Church, Fort Belvoir, Franconia, Gainesville, Great Falls, Haymarket, Herndon, Leesburg, Lorton, Manassas, Mclean, Mount Vernon, Oak Hill, Oakton, Purcellville, Reston, South Riding, Springfield, Stafford, Sterling, Tysons Corner, Vienna, West Springfield, and Woodbridge.

Contact us online now or give us a call us at 703-493-1200 to schedule a service! 

Ask about our 100% satisfaction guarantee!


HVAC Unlimited Inc.
The most reliable and efficient HVAC company I’ve worked with residentially and commercially.
Kevin - Bristow, VA
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Accreditations & Affiliations