Emergency Service Available

Boiler Services

Boiler Repairs in Northern Virginia

As a proud owner of a boiler, you’re pretty well protected from the frigid chill of our winters here in Virginia. That is, until something goes wrong. When you need boiler repair, you need service from professionals that are dedicated to fast, effective repairs, without sacrificing quality. Our teams at HVAC Unlimited have all of your needs covered! We’re equipped to handle repairs of any size, at any time!

Our specialists carry all of the experience, skill and products needed to get your repairs done right. At HVAC unlimited, we only bring the best!

Are you in need of high-quality boiler repair for your home or business? Contact HVAC Unlimited today to get the help you need, and the service you deserve!

Looking for radiator repairs? Click here!

Signs You Need Boiler Repair

There are lots of indications that something may be wrong with your boiler. Keep an eye out for any of these signs:

  • Odd sounds. One of the first (and too often, the last!) indications that something has gone awry, odd sounds should never be ignored. Sounds may indicate a number of problems, such as the clunking of a deposit buildup in the tank, or a squeal or thin whine when a component has become damaged. Odd sounds can be very serious, and left alone could cause huge issues.
  • Leaking. A leak can lead to increased costs, and if left alone, can create an opportunity for even further damage. Have it checked and handled by a professional immediately.
  • Unusual odor. Really with a boiler, any smell at all should be unusual. If you smell anything strange, particularly sulfurous (rotten eggs) or metallic odors, seek professional assistance now. This could be a serious health risk!
  • Older boilers. Boilers are built to last, but that doesn’t mean they’ll last forever. After even ten years, your boiler should be routinely checked and repaired by a trained professional. If it’s really getting up there in years, you may even consider boiler replacement to increase efficiency and reduce the frequency of boiler repair.

Emergency Boiler Repair in Fairfax

A convenient time for your boiler to break down doesn’t really exist, but if you’re worried that we won’t have you covered, don’t! As long as you’re a contract customer of HVAC Unlimited, our emergency repair services are available any time, any day! HVAC Unlimited can have a fully-equipped specialist out to your home or business any time you need them.

*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!*

Expert Boiler Repair In Virginia With HVAC Unlimited

Our specialists are expertly trained, and strive to stay ahead of all of the changes that come so rapidly to our industry. Training never stops, and we strive to bring our consumers the very best in technology and techniques. We can handle any boiler, no matter the age, make model or condition.

Whether your issue is large or small, our experts are standing by to assist. HVAC Unlimited takes pride in providing our consumers with the best service and skill in Virginia, and we would love nothing more than to bring you the services you need. If you need boiler repair, or any of our other services, contact HVAC Unlimited now!

Local Reviews
for Northern Virginia

Rated 5.0 out of 5 stars based on 622 customer reviews

Map of Fairfax, VA

Outstanding Professional Service




Robert Campbell, from HVAC unlimited, has been servicing my house hvac systems and our family systems for many years. Robert's hvac services are always very professional and thorough. When any repairs are needed, we feel comfortable about his honest suggestions and prices. We have recommended HVAC UNLIMITED to our family and friends and Robert Campbell is an asset to his company!


Map of McLean, VA

Informative Technician





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!


Erwin V.

Erwin V.

Heating inspection and repairs

Near Leesburg Pike, Falls Church, VA 22041
William C.

William C.

Performed 2 contracted heating inspections on hydronic heat pumps.

Near Prosperity Ave, Fairfax, VA 22031
William C.

William C.

Heating inspection on Hydronic Airhandler.

Near Spring Gate Dr, McLean, VA 22102
Erwin V.

Erwin V.

Heating inspection.

Near McLean, VA 22102
Robert C.

Robert C.

Performed heating inspection on Carrier gas furnace system under contract

Near Covington St, Fairfax, VA 22031
Erwin V.

Erwin V.

Service repairs,no heating.

Near Aspenpark Rd, Lorton, VA 22079
Jermaine A.

Jermaine A.

Heat Inspection

Near Mayhurst Blvd, McLean, VA 22102
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
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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.