Heating Repairin Fairfax 

Over 50 Years Serving Fairfax Homeowners. NATE-Certified Technicians on Every Call.

When your heater stops working, you can count on the NATE-certified technicians at Air Treatment Heating & Cooling to diagnose the problem accurately and fix it fast. Every service call starts with a full evaluation of your heating system to locate the source of the issue. Our technicians listen to your concerns, explain what they find, and walk you through your repair options. If repair isn’t the right move, we’ll also present replacement options so you can make the best decision for your home. As a family-owned company based in Fairfax with more than 50 years of service to Northern Virginia homeowners, we provide upfront quotes before any work begins so there are no surprises.

Heating Systems We Repair in Fairfax

Air Treatment Heating & Cooling repairs all types of residential heating systems, including furnaces, heat pumps, boilers, and ductless mini-split systems. We fix a wide range of issues: pilot light problems on gas models, ignition failures, thermostat malfunctions, mechanical failures, dirty filter replacements, and heat pump performance problems. Our technicians assess your system thoroughly, deliver an accurate diagnosis, and resolve the issue using high-quality materials and equipment.

Furnaces are the most common system type in Northern Virginia homes, but heat pumps are increasingly prevalent in the region, and older homes often rely on boilers that require additional diagnosis. Our technicians also have the training needed to service ductless systems correctly, so no common residential heating type is out of scope. We’ll pinpoint the problem with your heating system and help you understand whether repair or replacement is the right path forward.

Signs Your Heater Needs Repair

If your heating system is acting up, it’s worth addressing the problem before it gets worse. Here are the most common signs it’s time to call for service:

Give us a call if you’re experiencing any of these heating problems:

• Not enough heat to warm your home - Start by checking that air vents aren’t blocked and that your pilot light is lit. If both look fine, give us a call.
• Heater turns on but produces no heat - If the system clicks on but nothing comes out, something may be wrong with your heating element. That’s a job for a trained professional.
• Heating system won’t turn on or off - A pilot light that won’t ignite or a unit that runs continuously both warrant a professional inspection.
• Error code on display - Many heating units signal system status through the pilot light color. If yours looks off or unfamiliar, call us before it becomes a bigger issue.
• Blank thermostat - This sometimes means nothing more than a thermostat replacement, which is a straightforward fix. Our technicians can tell you quickly.
• Malfunctioning heat pump - Strange noises or a drop in performance from your heat pump are signs something needs attention. Don’t wait for it to get worse.

Catching these signs early can prevent a small problem from turning into a costly repair or full system replacement. Air Treatment Heating & Cooling is ready to help with prompt, professional service. We also offer indoor air quality services to keep your home as comfortable as possible.

What to Expect When You Call Us

When you call Air Treatment Heating & Cooling for heater repair in Fairfax, we treat your home with the same care we’d want for our own. Our technicians arrive on time, wear shoe covers to protect your floors, and clean up the work area before they leave. We provide an upfront quote before any work begins so you know exactly what you’re paying. Our goal is to get it right the first time.

We diagnose the root cause rather than treating symptoms, which can help prevent the same issue from coming back. If your heating system fails unexpectedly, we offer emergency heating repair service with same-day availability during service hours so you’re not left waiting in the cold. Air Treatment Heating & Cooling is also a Carrier President’s Award recipient, a recognition for quality and customer service that reflects the standard we bring to every call.