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HVAC

HVAC Repair in Northern Virginia

Finding yourself in a situation that requires HVAC repair can be frustrating, and exceptionally uncomfortable. We’ve come to rely on the heating and cooling systems we know so well, and when something goes wrong, we can be at a loss for how to handle it. In these times, don’t stress! Look to the expertise and skill of HVAC Unlimited to handle your HVAC repair needs without so much as a hiccup!

Our HVAC contractors are NATE (North American Technician Excellence) certified, so you know you’re getting the quality and skill you deserve for your HVAC repair. No matter the size or scope of your issue, we’ve seen it all, and can bring all that is needed to exceed expectations and have you back to normalcy right away.

 

What Is “HVAC”?

HVAC is an acronym that stands for “Heating, Ventilation and Cooling”, and entails the maintenance, installation and repair of all machinery that falls under this scope. It includes all heating equipment, air conditioning, hybrids and air quality. When we say “HVAC repair”, we’re referring to the recovery and maintenance of any of these machines that are operating poorly, or not operating at all.

To better understand how your HVAC system operates, take a glance at this handy little chart.

Need HVAC repair in your Fairfax home or business? Contact the certified experts at HVAC Unlimited today to get top-quality repairs at competitive prices!

*While we serve all customers until 8 PM, overnight emergency service (after 8 PM) is available for contract customers only.*

*For emergency services we ask that you please call (703) 493-1200 and not submit an online request. Phone calls allow us to respond quickly to your emergency HVAC and plumbing needs!*

Heating Repair: Oil, Gas and Electrical Furnaces

Heating issues that may require repair can include:

  • Strange sounds
  • Inadequate heating
  • Energy cost spikes
  • Operation Failure
  • Inaccurate thermostat readings

Cooling Repair: Central AC, Ductless Systems

Keep an eye out for any of these signs:

  • Coolant leaks
  • Excessive condensation or pooling water’
  • Hikes in cost of operation
  • Operation failure
  • Warm air
  • Odd sounds

Hybrid Repair: Air-Source, Geothermal, or Water Source Heat Pumps

Hybrid systems share many of the same indications of disrepair as most other HVAC systems, but there are a few unique signs:

  • Mode jams (The pump refuses to switch from “heating to cooling” or vise versa
  • Over-frequent cycling, or kicking on randomly

HVAC Ventilation Repair

What do you know about your ventilation system? Here are a few facts:

  • Ventilation refers to the duct system that circulates the air in your home or business.
  • Air coming into the indoor system is called return air; air going out of the indoor component to the rest of your house is called supply air.
  • Modern building codes sometimes require returns in every room, so this can become more complex for newer buildings.
  • The ventilation aspect of HVAC is extremely important in terms of comfort, energy efficiency, equipment operation and indoor air quality.
  • There can be hundreds of feet of duct in an average-sized house, and it frequently is placed in areas such as the attic or basement where the air is not clean. If your ductwork is not perfectly sealed, you will not only lose heating and air conditioned air to outside areas but also bring dusty or dirty air into the conditioned air in your house. This wastes a lot of energy as well as creating a potentially unhealthy indoor environment.

If you have a problem in your ventilation system, you could be breathing lower quality air, and paying more for conditioned air that’s leaking through the cracks.

Watch out for these common issues:

  • Increased presence of allergens including pet dander, dust, pollen, etc.
  • Moisture-laden (humid) air
  • Dry air
  • Poor heating and cooling circulation
  • Reduced efficiency from an otherwise perfectly fine heating or cooling system

Peerless HVAC Repair in Fairfax and Northern Virginia

Our specialists know how to read your HVAC system like a book. We’ve seen it all, and no issue is too large, or too small for us to locate and remedy in record time. HVAC Unlimited has been providing excellent service to Northern Virginia for years, and we would love nothing more than to extend our expertise to aiding your specific and unique needs. To learn more about our repair services, or for answers to any questions you may have, contact our team today!

Local Reviews
for Northern Virginia

Rated 5.0 out of 5 stars based on 620 customer reviews

Map of McLean, VA

Great service




On time, polite and thorough inspection


Map of Falls Church, VA

Great service




Jermaine came to service our HVAC systems today and was professional and knowledgeable. He took the time to explain things to me, which I appreciated. On top of that, he was a friendly and cheerful person. Good job!


Map of Lorton, VA

Great service delivered ahead of schedule




Fast service. Convenient and flexible.


Map of Alexandria, VA

Great service





Map of Fairfax, VA

Great Service when all the other technicians I called seemed lost!




Jermaine was super knowledgeable of my building and was able to identify and repair the problem with my air conditioner in a very quick timeframe!


Map of Arlington, VA

Wonderful experience.




Robert was very thorough and patient. He was respectful and represented HVAC Unlimited very professionally. I enjoyed his supportive, helpful nature.


Map of Lorton, VA

Great Service




On time. Knowledgeable. Professional.


Map of Arlington, VA

Extremely Knowledgeable, Very Service




Jermaine was very quick to get us a solution to what was wrong with our system and immediately fix the problem on site. He was very knowledgable and had great customer service!


Map of Alexandria, VA

Jermaine Rocks the House




Amazing work by this tech. He was able to diagnose and resolve a faulty HVAC installation (performed by a competitor company), which had resulted in massively sweaty (condensation-soaked) ducts. He was knowledgeable, highly skilled, efficient...,and a very cool guy. Highly recommended.


Map of Alexandria, VA

Great service from Rony




Rony showed up on time, investigated and diagnosed the problem with my AC unit very quickly. He also fixed it quickly and provided me with tips to keep the drain clean.


Jeremy G.

Jeremy G.

Heating inspection

Near Catbird Cir, Lorton, VA 22079
Jeremy G.

Jeremy G.

Heating inspection

Near Catbird Cir, Lorton, VA 22079
Jermaine A.

Jermaine A.

Heating Inspection

Near Falstaff Rd, McLean, VA 22102
Jermaine A.

Jermaine A.

Heating Inspection

Near Grove Ave, Falls Church, VA 22046
Jeremy G.

Jeremy G.

No ac plus repairs

Near Catskill Rd, Lorton, VA 22079
Jermaine A.

Jermaine A.

Heating Inspection

Near Towne Manor Ct, Alexandria, VA 22309
Jermaine A.

Jermaine A.

Chemically Clean Heat Pump Coil

Near N French St, Alexandria, VA 22304
Jermaine A.

Jermaine A.

No AC

Near Merrilee Dr, Fairfax, VA 22031
Jermaine A.

Jermaine A.

Erik M

Near Merrilee Dr, Fairfax, VA 22031
Jermaine A.

Jermaine A.

Heating Inspection

Near Island Creek Ct, Alexandria, VA 22315
Robert C.

Robert C.

Performed heating inspection on boiler system

Near 24th Rd N, Arlington, VA 22205
Andre M.

Andre M.

Performed cooling inspection on trane ac system

Near Anita Dr, Lorton, VA 22079
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.

No ac

Near N Hampton Dr, Alexandria, VA 22302
Jermaine A.

Jermaine A.

No AC

Near 3rd St S, Arlington, VA 22204
Jermaine A.

Jermaine A.

Sweaty Air Ducts

Near Governors Pond Cir, Alexandria, VA 22310
Rony T.

Rony T.

No air conditioning found clogged drain line.

Near Midtown Ave, Alexandria, VA 22303
Erwin V.

Erwin V.

Water leaking.

Near Elba Rd, Alexandria, VA 22306
Erwin V.

Erwin V.

No a/c

Near Prince St, Alexandria, VA 22314
Erwin V.

Erwin V.

No A/C

Near N Randolph St, Arlington, VA 22201
Erwin V.

Erwin V.

Repairs air conditioning system

Near Cannon Ln, Alexandria, VA 22303
Jermaine A.

Jermaine A.

No AC

Near Jamieson Ave, Alexandria, VA 22314
Jermaine A.

Jermaine A.

No ac

Near N Woodstock St, Arlington, VA 22207
Jermaine A.

Jermaine A.

No Ac

Near 20th St N, Arlington, VA 22207
Jermaine A.

Jermaine A.

No AC

Near Aristotle Dr, Fairfax, VA 22030
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  • For emergency service, please call our office at 703-493-1200.

24/7 SERVICE
EMERGENCY SERVICE

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.