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Heating Services

Top-Rated Northern Virginia Heating Company

Providing Heating Services throughout Northern Virginia, Including Lorton, McLean, Alexandria, Arlington, Fairfax & More!

Is your furnace making clanking noises? Does your home have an usual draft or feel colder than normal when your heat is on? If so, it’s most likely time for you to schedule a heating service with the expert technicians at HVAC Unlimited! We provide reliable, efficient, and quality HVAC services to homeowners throughout Northern Virginia. Our team has been offering 24-hour heating services and industry-leading quality for decades.

Schedule a heating service from the best Northern Virginia heating company or call us a703-493-1200!

HVAC Services from the Best Heating Company in Lorton

You can count on us to service all major heating system brands in areas like Arlington, Falls Church, Lorton, and Vienna. We provide the following heating services throughout Northern Virginia:

Furnace Services

Gas, electric, and even oil furnace systems are widely used across the entire nation. They’ve been the go-to heating system for homeowners for generations, and our team specializes in furnace services for that reason specifically. No matter your furnace needs, our experts can provide dependable, reliable products and services to meet your every heating need. Call our top-rated Lorton heating company to service your:

  • Gas furnace heating systems
  • Electric furnace heating systems
  • Oil furnace heating systems

We offer the following furnace services:

  • Furnace installation
  • Furnace replacement
  • Furnace maintenance
  • Furnace repair

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

Schedule furnace services in Northern Virgnia, including Lorton, by calling our heating company at 703-493-1200 today!

Heat Pump Services

Heat pumps have been rapidly evolving as one of the leading home heating and cooling systems because of their versatility, energy-efficiency, and sheer dependability. Our team can help you to experience all the benefits that a heat pump can bring to your home. Whether you need top-class repair, dependable installation services, or you’re looking to replace an outdated system, our team can help with:

  • Heat pump installation
  • Heat pump replacement
  • Heat pump maintenance
  • Heat pump repair

Schedule a heat pump service by calling our technicians at 703-493-1200 today!

Boiler Services

Boiler systems provide total home comfort, offering superior heating power that is exceedingly even throughout your home. We can help you choose the perfect boiler system for your home, both sizing and installing your new system to optimize efficiency and provide heating that can fight off cold winter storms. We offer:

  • Boiler installation
  • Boiler replacement
  • Boiler maintenance
  • Boiler repair

Schedule boiler service by contacting our HVAC contractors at 703-493-1200 today!

Heating Installation & Replacement

At HVAC Unlimited, we offer many heating services, including heat pump and furnace replacements and installations for homes and businesses in McLean, Lorton, Alexandria, and the surrounding areas. Older heaters usually give some kind of warning when they are in need of a repair or replacement, but can you recognize those signals? Some signs you need a new heating system include:

  • Your heater is coming to the end of its life. The average lifespan of a furnace is 15-20 years. If your unit is older than 15 years, you should consider a furnace replacement.
  • Your energy bills keep rising. If your energy bills have been steadily increasing, but your usage has stayed the same, higher fuel prices might not be the culprit. Furnace efficiency can dramatically decline as the unit ages.
  • You need heating repairs more than once a year. Frequent, costly repairs are a sign of more to come. If you’re facing a repair bill of $500 or more, and the unit is more than 10 years old, consider upgrading to a new unit.
  • Your air quality is decreasing. Dry, stale air and excessive amounts of dust, soot, or rust particles are all signs that your furnace has lost its ability to effectively clean and humidify the air in your home.
  • Your family or home is expanding. If you’re adding on a room or increasing the amount of people living in your home, your furnace may have to work harder than before, raising your energy costs.

Schedule an in-home consultation to discuss your options for heating installation and other heating services with the professionals at HVAC Unlimited today!

Heating Repairs

When it comes to your car, would you ignore odd noises or unusual smells?  You should treat your HVAC system with the same care and precaution because ignoring problems can oftentimes lead to more costly repairs or even the need for a complete replacement.

Commercial and residential heating services require professional repair services, no matter the age, brand, or model. At HVAC Unlimited, we’re experienced in diagnosing and fixing many different challenges, including:

  • Lack of proper maintenance
  • Motor malfunctions
  • Cracked heat exchanger
  • Dirty or misaligned pilot light
  • Dirty or clogged air filters
  • Blower fan issues
  • Broken limit control switch

Top-Rated Heating Company Headquartered in Lorton, Virginia

Lorton is part of Fairfax County in Northern Virginia, and is home to 18,610 residents. That means there are more than 18,000 people who rely on a reputable heating company to provide the heating services they need—and HVAC Unlimited is happy to help. Whatever reason brought you to Lorton—even if it was to be closer to the Five Guy’s headquarters—we’re glad it did! (We’d be lying if we said we don’t love having our Lorton heating company close to the best burgers in the area!) We look forward to providing you and your family the best heating services in Lorton—give us a call today!

See What Our Customers Are Saying

“Rob was awesome. He was quick, thorough and extremely knowledgeable. He offered me the service contract which was a great deal for me. He came out on a Sunday when other companies weren’t available. He was at my house quickly and exactly when he said he would be and efficient and thorough once he started working.”

– Neal (Lorton, Virginia)

“I have used HVAC Unlimited since I bought my home 10 years ago. From installation and service appointments they are always so wonderful and my unit rarely ever needs attention. My most recent appointment with Jeremy this Saturday could not have been better. I will only use HVAC Unlimited!”

– Kate (Arlington, Virginia)

“I have used most of the “highly rated” HVAC companies in Northern VA and this company rocks! Allows you to schedule and they honor your time, excellent technicians, fair pricing without upselling you on contracts.”

– Jeanie (Alexandria, Virginia)

Call us today at 703-493-1200 for reliable heating services throughout the Northern Virginia area!

HVAC Unlimited offers heating services 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! 

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.