When Your Furnace Stops Working, We’re Ready To Help
If your furnace can’t keep up, makes unusual noises, or suddenly stops heating, Dave’s Heating & Air is here to restore comfort quickly with honest guidance and dependable repairs.
Losing Heat Is Never Convenient — But We Make the Fix Simple
When your furnace stops working, you notice right away. Cold air from the vents, uneven temperatures, strange sounds, or a system that won’t turn on at all—these issues can make your home uncomfortable fast. You need clarity, not guesswork. You need a team that arrives prepared, explains what’s happening, and gets your system running safely again.
That’s exactly what we do at Dave’s Heating & Air. With nearly 50 years of experience in Northern Virginia, we know how to diagnose furnace problems quickly and deliver repairs that last.
What We Look For During a Furnace Repair Visit
Gas furnaces rely on precise timing, safe ignition, clean burners, accurate sensors, and a strong airflow system. When one part fails, others often follow. That’s why our technicians take a full-system approach rather than chasing symptoms.
During a repair visit, we examine how the entire furnace is operating—ignition, burner performance, airflow, electrical components, and safety controls. This helps us pinpoint the real issue and prevent recurring problems.
Common Furnace Issues We Repair
Every furnace shows distress in its own way. Some problems are obvious—like no heat at all. Others start slowly and get worse over time.
Homeowners often call us for issues like:
Furnace runs but blows cold or lukewarm air
System cycles on and off repeatedly
Ignitor won’t light or keeps failing
Strong odors during operation
Loud banging, scraping, or rumbling noises
Weak airflow through the vents
Furnace won’t turn on at all
If something doesn’t seem right, trust your instincts—furnaces rarely fix themselves.
Repairs Backed by Experience and Care
Our technicians arrive with the tools, training, and parts needed to resolve most issues on the spot. We explain what we found, walk you through your options, and provide straightforward pricing before repairs begin. No pressure. No surprises. Just experienced guidance you can trust.
Once repairs are complete, we perform a full heating test to ensure your furnace is operating safely and efficiently before we leave your home.
When Repair Isn’t the Best Long-Term Choice
We always aim to repair whenever it’s practical. But if your furnace is older, unreliable, or facing multiple expensive components failing at once, we’ll help you understand when replacement may be the more cost-effective option. Our recommendations are based on system condition—not sales targets.
Why Homeowners Choose Dave’s
Experience You Can Feel
We’ve served Northern Virginia homes for 50 years.
Fair, Upfront Pricing
No upsells, no hidden fees — just straight answers.
Local & Reliable
Based right here in Sterling, ready when you need us.
Respectful Service
We treat every home like it’s our own.
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Keeping Northern Virginia Warm Since 1975
Reliable Furnace Service, Repairs, and Installations
Cold weather puts immediate and constant demand on your furnace. When it’s working properly, you get steady heat, safe operation, and predictable energy use — but when it falters, you feel it fast.
At Dave’s Heating & Air, we specialize in full-service furnace care for residential and light commercial properties. From seasonal tune-ups and detailed safety inspections to responsive repairs and complete furnace replacements, our technicians bring decades of experience and a commitment to doing the job the right way.
For nearly 50 years, homeowners in Reston, Herndon, Sterling, and surrounding Northern Virginia communities have trusted Dave’s for honest guidance, dependable service, and the reliable heat they count on all winter long.
Call 571.346.3940 and let’s keep your system humming!
Hear It from Our Happy Customers
Nothing makes us prouder than hearing directly from the wonderful people we serve right here in Sterling, Herndon, Reston and Northern Virginia. Our reputation is built on knowledgeable technicians, courteous service, and the promise that we always leave your home as clean as we found it—if not cleaner!
Customers regularly praise our team for arriving on time, delivering expert system installations and repairs, and ensuring the whole process is seamless from start to finish. Whether it’s a complete HVAC replacement or routine maintenance, folks appreciate the extra care and attention to detail we bring. Many even say they’d recommend us to friends and neighbors without hesitation. Now that’s high praise!