Keep Your Heating System Running Smoothly All Winter

Annual maintenance is the easiest, most effective way to prevent breakdowns, lower energy costs, and keep your home safe and warm. With nearly five decades of experience, Dave’s Heating & Air delivers detailed, reliable service that keeps your system performing its best—season after season.

Keep Your Home Warm, Safe, and Efficient All Winter

When temperatures drop in Reston and across Northern Virginia, your heating system becomes one of the hardest-working parts of your home. A yearly check isn’t just routine—it’s the best way to avoid surprise failures, improve efficiency, and keep your home comfortable through even the coldest days.

At Dave’s Heating & Air, our maintenance service is designed to protect your system, reduce the risk of mid-season breakdowns, and help your equipment operate safely and efficiently.

Why Regular Heating Maintenance Matters

Your heating system contains burners, blowers, sensors, safety switches, electrical components, and controls that all have to work together. When even one part slips out of spec, you may notice:

  • Higher energy bills

  • Longer run times

  • Uneven temperatures

  • Strange noises or odors

  • Frequent on/off cycling

Routine maintenance catches these issues early, long before they turn into a “no heat” emergency. A well-maintained system lasts longer, runs safer, and costs less to operate.

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’s Included in a Heating Maintenance Appointment

We don’t believe in quick, five-minute “clean and checks.”
Our maintenance visits are detailed, thorough, and built to ensure your system is ready for the demands of winter.

Your service may include:

  • Inspecting burners, ignition systems, and heat exchangers

  • Testing blower motors and airflow

  • Checking safety switches and control boards

  • Verifying gas pressure and combustion (for furnaces)

  • Confirming proper operation of heat pumps and auxiliary heat

  • Tightening electrical connections

  • Inspecting flue and ventilation components

  • Calibrating the thermostat

  • Cleaning or replacing filters

  • Identifying worn or failing parts before they cause trouble

Before we leave, we review our findings so you know exactly what to expect from your system throughout the season.

The Benefits of Annual Heating Maintenance

A single annual visit pays for itself through better performance and fewer repairs.

Homeowners typically see:

  • Lower utility bills

  • Reduced repair costs

  • Longer system lifespan

  • More consistent, comfortable heat

  • Improved indoor air quality

  • Better safety, especially for gas furnaces

If you want your system to last and avoid stressful breakdowns, yearly maintenance is the most important step you can take.

We Service Furnaces, Heat Pumps & Hybrid Systems

Our technicians maintain all types of heating systems, including:

  • Gas and electric furnaces

  • Heat pumps

  • Dual-fuel/hybrid systems

  • Packaged units

We work with all major brands: Carrier, Trane, Lennox, Goodman, Rheem, Bryant, and many more.

When Maintenance Reveals a Bigger Issue

Our goal is to protect your system—not just clean it.

If we find anything concerning during your appointment—like a failing part, airflow restriction, weak ignition, refrigerant issue, or potential safety hazard—we’ll show you what’s going on and explain your options clearly.

There’s never pressure or upselling. Just honest guidance.

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.

Request Service - It Only Takes 7 Seconds!​

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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.