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HVAC Services in Fairfax, Loudoun, & Prince William Counties, VA

At HVAC Unlimited, we are known for striving for perfection when it comes to delivering the best local services in Fairfax, Alexandria, Lorton, Arlington, and surrounding areas. Our North American Technician Excellence (NATE) certified staff of HVAC contractors and expert plumbers are trained in the latest technology and techniques. We provide top-quality work in both residential and commercial heating services.

Get the value-focused & trustworthy HVAC service you deserve today!

Contact Us for Reliable HVAC Maintenance, Installation & Repairs in Northern Virginia

Is your HVAC system acting up? Is it cycling on and off? Or maybe it's inconsistently heating your home? Whatever the case may be, our technicians are trained in the latest technology to work on all brands of heating systems and can accurately diagnose any problems you may have. From installation and replacement, to maintenance and repair, we do everything in our power to keep your home's HVAC systems running efficiently all year long. If you're located in Fairfax, Loudoun, or Prince William County, Virginia, there's only one name you need to know for reliable heating services—HVAC Unlimited.


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Commercial & Residential HVAC & Plumbing Services in Northern VA

Heating Services

If you’ve ever had the heat go out in the middle of a Virginia winter, you know how much a functional heating system is worth. Whether you’re shopping for a newer, more energy-efficient heating system or need repairs on your existing one, we’re here to help! We offer the following heating services in Northern Virginia:

Is your home heating system giving you trouble? No worries! Our experts can help—contact us today.

Plumbing Services

We’re now your one-stop shop for your HVAC and plumbing services! If you are in need of pipe repair or water heater installation, our expert plumbers are here to serve you. Thorough training and years of experience has prepared our plumbing professionals to address the following residential and commercial plumbing issues:

Call us at 703-493-1200 whenever you have a plumbing emergency. We are available 24-hours a day for homeowners in Fairfax, Virginia, and the surrounding areas!

Cooling Services

For any of your cooling system needs, HVAC Unlimited offers a full array of services, from repairs to installations and replacements. Virginia summers are notoriously hot and humid, and you don’t want to get stuck in that heat with a broken air conditioner! We are here to help 24-hours a day, and offer the following cooling services to the Northern Virginia area:

If your AC won’t turn on or is causing you problems, don’t hesitate to call us at 703-493-1200!

Commercial HVAC Replacement, Repairs & Installation

Your employees need a warm, comfortable workplace to stay productive throughout the winter seasons, and you need great commercial HVAC systems to keep your office that way. If your business has an older system that is developing problems, you’ll want to start shopping for a new, more energy-efficient system. By making an investment on a new commercial furnace, boiler, or heat pump installation, you’ll no longer need to empty your wallet for constant HVAC repairs. Plus, you could save money on your energy bills as well!

At HVAC Unlimited, we’re known for striving for excellence in everything we do, and that includes our comprehensive commercial heating and cooling services. From HVAC replacement and installation, to maintenance and repair, we have all the great services your business needs to maximize productivity and minimize costs.

Contact us today to schedule an in-house consultation for your commercial property throughout Fairfax, Loudoun, and Prince William County, Virginia.


We have staff on call at any time of the day or night, every day of the year so that we can provide assistance during emergency situations.

The HVAC Unlimited Advantage:

100% of our technicians are NATE & Carrier Certified.

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special financing.
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