Emergency Service Available

HVAC Unlimited, Inc.

Fairfax Air Conditioning, Heating & Plumbing Services

Top-Rated HVAC & Plumbing Company in Fairfax, Virginia

Residents of Fairfax rely on both heating and air conditioning systems to keep up with our unpredictable weather. So when something goes wrong with your systems, you need a top-rated Fairfax HVAC company.

For heating, air conditioning, and plumbing services in Fairfax—contact HVAC Unlimited! Reach us online or by calling 703-493-1200.

Fairfax Air Conditioning Services

HVAC Unlimited offers air conditioning services in Fairfax, from repairs to installations and replacements:

AC unit causing you problems? Call us at 703-493-1200!

Fairfax Heating Services

Shopping for an energy-efficient heating system, or need repairs on your existing furnace or boiler? We’re here to help with the following heating services in Fairfax:

Choose HVAC Unlimited for heating services in Fairfax, VA! 

Fairfax Plumbing Services

Our expert Fairfax plumbers are here to serve you and can help with:

Call us at 703-493-1200 whenever you have a plumbing emergency in Fairfax!

Choose HVAC Unlimited for Plumbing, Heating & Air Conditioning in Fairfax, VA

The Fairfax government website describes the historic city as having a “small-town atmosphere and an abundance of cultural and recreational pursuits in the midst of a bustling metropolitan area.” We definitely agree with this official assessment of the city of Fairfax, VA. Having served the heating, air conditioning, and plumbing needs of Fairfax for many years, the HVAC Unlimited team enjoys being part of this community.

Some area highlights that set Fairfax apart, for us, include its many historical sites, museums, and monuments. We have a great appreciation for this city, and we hope residents will continue to count on us for Fairfax plumbing, heating and AC services from HVAC Unlimited.

Top-Rated Fairfax Plumbers & HVAC Contractors

Whether you need air conditioning, heating, or plumbing services in the Fairfax area, our HVAC company ensures your satisfaction.

Contact our plumbing and HVAC company  by dialing 703-493-1200 or by reaching us online!

Local Reviews
for Fairfax, VA

Rated 4.9 out of 5 stars based on 123 customer reviews

Map of Fairfax, VA

The most thorough and reliable HVAC maintenance technician

Map of Fairfax, VA

Great customer service!

Love that Jermaine is back with HVAC Unlimited.

Map of Fairfax, VA

Exemplary Technician

Jeremy was completely thorough when servicing my unit that had stop heating. He explained every step and it's cost as he went along. I have used several service companies and never been this pleased. I will definitely use HVAC for every call in the future!

Map of Fairfax, VA

Great Service!

Jermaine was very professional and provided excellent service!

Map of Fairfax, VA

Meticulous and Dedicated Professional

Jeffrey is very proud of his work and made sure that his work is exemplary. Thank you for putting in meticulous effort in cleaning my HVAC fan and ensuring that everything was working properly before leaving my apartment. Thank you for your professional service!

Josue R.

Josue R.

Responded to a no A/C call, when arrived found auxiliary drain pan full of water and float switch open. Vacuumed out drain pan and performed run checks, found system low on refrigerant Charged unit to manufacturer’s specs. Added 2lbs of R22. Equipment working properly at this time

Near Merrilee Dr, Fairfax, VA 22031
Jermaine A.

Jermaine A.


Near Aristotle Dr, Fairfax, VA 22030
Robert C.

Robert C.

Performed cooling inspection and cleaned blower assembly on Bryant system

Near Randolph St, Fairfax, VA 22030
Robert C.

Robert C.

Replaced failed capacitor on Carrier heat pump system

Near Flintridge Ct, Fairfax, VA 22032
Erwin V.

Erwin V.

Fixing water leaking and other repairs

Near Byrd Dr, Fairfax, VA 22030
Jermaine A.

Jermaine A.

Cooling Inspection

Near Sperrin Cir, Fairfax, VA 22030
Jeremy G.

Jeremy G.

Cooling inspection

Near Cannonball Rd, Fairfax, VA 22030
Jermaine A.

Jermaine A.

Cooling Inspection

Near Maltese Ln, Fairfax, VA 22033
Jermaine A.

Jermaine A.

Cooling Inspection

Near Cardoness Ln, Fairfax, VA 22030

HVAC Unlimited offers:

  • Plumbing, heating & air conditioning company in 22030 (Fairfax, VA)
  • Plumbing, heating & air conditioning company in 22031 (Fairfax, VA)
  • Plumbing, heating & air conditioning company in 22032 (Fairfax, VA)
  • Plumbing, heating & air conditioning company in 22033 (Fairfax, VA)
  • Plumbing, heating & air conditioning company in 22034 (Fairfax, VA)
  • Plumbing, heating & air conditioning company in 22035 (Fairfax, VA)
  • Plumbing, heating & air conditioning company in 22036 (Fairfax, VA)
Get the value-focused & trustworthy service you deserve today!
  • For emergency service, please call our office at 703-493-1200.


We have staff on call 24/7 to provide assistance to our customers. We provide emergency service up to 8pm for all customers and 24/7 for contract customers. For quick, efficient emergency services, please call (703) 493-1200 immediately.