Trusted Heating Service for a Comfortable, Worry-Free Winter

When your heating system isn’t keeping up with the cold, you need a team that responds quickly, diagnoses accurately, and delivers repairs or maintenance that last. Dave’s Heating & Air has been keeping Northern Virginia homes warm for nearly 50 years — and we’re here when you need us.

Stay Comfortable No Matter How Cold It Gets

When temperatures fall in Reston and Northern Virginia, a dependable heating system becomes essential. Whether you use a furnace, heat pump, or dual-fuel setup, Dave’s Heating & Air is here to make sure your home stays warm, efficient, and safe all season long.

We don’t rely on quick fixes or guesswork. Our technicians take the time to understand your system, identify the real cause of the issue, and offer solutions built for long-term performance. From seasonal tune-ups to urgent repairs, we’re the heating partner you can trust.

Service Built Around Your System — and Your Home

No two homes heat the same way. That’s why we tailor every visit to your specific system, whether it’s an older furnace that needs extra attention or a modern high-efficiency unit with advanced controls.

We specialize in residential and light commercial heating service and bring decades of experience to every appointment. You’ll always get straightforward recommendations, transparent pricing, and workmanship that puts your comfort first.

An HVAC technician from Dave's Heating & Air holding a manifold gauge set next to an outdoor Trane air conditioner condenser unit during a home service call.

What Our Heating Service Includes

Heating systems work hard through long winter seasons, which is why thorough care makes such a difference. During a service visit, we perform a detailed inspection and tune-up to ensure your system is safe, efficient, and ready for cold weather.

Our service may include:

  • Inspecting burners, heat exchangers, and ignition components
  • Testing safety controls and electrical systems
  • Checking blower motors and airflow
  • Cleaning or replacing filters
  • Verifying gas pressure and combustion efficiency (for gas furnaces)
  • Confirming heat pump switching and defrost operation
  • Testing thermostat accuracy
  • Identifying early wear, efficiency loss, or safety concerns


After the visit, we review everything with you so you know the exact condition of your system — and what you can expect moving forward.

Heating Repairs You Can Count On

If your heat stops working, starts making unusual sounds, or isn’t keeping your home as warm as it should, our team is ready to help. We diagnose problems quickly and accurately so you don’t have to spend days in a cold house trying to guess what’s wrong.

Common issues we repair include:

  • No heat or inconsistent heating

  • Short cycling

  • Ignition or burner failures

  • Blower motor issues

  • Electrical or control board problems

  • Heat pump performance issues

  • Strange smells or noises

We focus on fixing the root cause — not just patching symptoms — so your system stays reliable long after we leave.

Seasonal Maintenance That Makes a Difference

Routine maintenance in Reston and across Northern Virginia is the easiest way to avoid breakdowns and keep your system running at peak efficiency.

Homeowners who stay on schedule typically experience:

  • Lower heating bills

  • Fewer emergency repairs

  • A longer-lasting system

  • Better overall comfort

  • Cleaner indoor air

A little care each year saves a lot of stress when winter hits hardest.

When It’s Time to Think About Replacement

Even the best heating systems don’t last forever. When repairs become frequent or expensive, we help you explore replacement options that fit your home and budget. We’ll look at:
  • Age and condition of your current system

  • Repair frequency and cost

  • Energy usage and efficiency

  • Comfort issues in your home

  • Available rebates or incentives

You’ll get honest recommendations — no pressure, no upsells.

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 Heating Service, Repairs, and Installations

When the temperatures drop, your heating system becomes one of the most important parts of your home. Whether you rely on a furnace, heat pump, or a hybrid setup, you need service you can trust — and a team that understands how to keep your system running safely and efficiently.

At Dave’s Heating & Air, we provide complete heating care for residential and light commercial properties. From seasonal tune-ups and safety inspections to fast repairs and full system replacements, our technicians bring decades of experience and a commitment to doing the job right.

For nearly 50 years, homeowners in Reston, Herndon, Sterling, and surrounding Northern Virginia communities have turned to Dave’s for honest recommendations, dependable service, and comfort they can rely on all winter long.

Smiling HVAC expert from Dave's Heating & Air wearing a company uniform shirt in a residential home setting.

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!

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Divya Kulkarni profile picture
Divya Kulkarni
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Five stars all the way! Adam did a fantastic job replacing our HVAC — professional, knowledgeable, and tidy, and he took the time to explain everything along the way. Dave's Residential Electrical and Air Conditioning made the whole process smooth from start to finish, and owner Javier clearly runs a company that cares about doing the job right. Our new system is running beautifully. Highly recommend!
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Diane Ludewig profile picture
Diane Ludewig
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Adam is the best! Efficient, knowledgeable, considerate… represents Dave’s extremely well!
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Janet Lynn Parker profile picture
Janet Lynn Parker
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Dave's provides excellent , dependable service. Adam is a great technician. Honest service and products provided at a good price.
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Sherry Brown profile picture
Sherry Brown
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I am a realtor and I have had the pleasure of working with Dave’s heating and air for a few of my real estate clients. The team has replaced water heaters, serviced HVAC systems and been a 2nd opinion when needed! Highly recommend having this company as a vendor if you are an agent!
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Tanya Clarke profile picture
Tanya Clarke
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Adam and his team were very professional and friendly. Once the water heater was installed he walked me through the installation process, showed me how it functions and gave tips for maintenance etc.
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Pauline Montague profile picture
Pauline Montague
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From the initial, timely estimate to the install everyone at Dave's was very responsive. The install was seamless and the cleanup was excellent. Even though I know next to nothing about HVAC systems, Adam never let me feel like my questions were silly. I would highly recommend this company for all of your HVAC needs.
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Paul Curylo profile picture
Paul Curylo
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These guys were prompt, professional, fast, and attentive from initial contact to system startup. Highly recommend them for your needs.
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Greg Stavrou profile picture
Greg Stavrou
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Dave’s did a great job replacing my old gas hot water heater! Professional and clean work with a choice of Bradford White and AO Smith 75 gallon in stock. Excellent planning visit, quoting and contracting process. Even a follow up to make sure we are happy! Thank you Dave’s!
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Jason G profile picture
Jason G
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Adam did an excellent job replacing my water heater. He was professional, courteous, and respectful of my home throughout the entire installation. He took care to keep everything clean and made sure there was no mess left behind. I also really appreciated that he kept me updated throughout the process and explained what he was doing along the way. Once the installation was complete, his team walked me through everything that had been done and made sure I understood the new system before he left. Overall, it was a great experience. Adam was knowledgeable, professional, and easy to work with. I would definitely recommend him.
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浅川 Asakawaめぐみ Megumi profile picture
浅川 Asakawaめぐみ Megumi
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Today, Adam came to install two UV units. We have been with Dave’s Heating & Air Company for more than 20 years, even through a change in ownership. We still recognize many of their technicians from the old days. Adam is very knowledgeable about HVAC systems. He is friendly, professional, and clearly takes pride in his work. We were very pleased and grateful to have him help us. Dave’s company is lucky to have employees like Adam.