Upgrade Your Home’s Heat With a Furnace Installed the Right Way
When your furnace can no longer heat reliably—or the cost of repairs outweighs what the system has left—Dave’s Heating & Air provides a smooth, clear, and stress-free replacement experience.
When Replacement Becomes the Best Choice
A furnace doesn’t fail overnight. You might first notice longer run times, uneven temperatures, or rising energy bills. Maybe you’ve had multiple repairs in recent years, or a major component like the heat exchanger or control board is nearing the end of its life. When these issues add up, replacing the system can restore comfort and prevent you from sinking money into short-term fixes.
That’s where Dave’s Heating & Air steps in. We evaluate your current system, look at how your home heats, and help you choose a furnace that delivers reliable, efficient warmth for years to come.
Choosing the Right Furnace for Your Home
Not every home needs the same type of system. We walk you through your options and help you compare features like efficiency ratings, fuel type, noise levels, and long-term operating costs.
Many homeowners consider a replacement when:
The furnace is 15–20 years old
Repairs have become frequent or costly
Heating is uneven or unreliable
Energy bills continue to rise each season
Safety concerns make ongoing repairs less practical
Our guidance is based on what works best for your home — not what’s easiest to sell.
What a Proper Furnace Replacement Looks Like
A furnace’s long-term performance depends heavily on how well it’s installed. Correct sizing, airflow setup, fuel delivery, venting, and system calibration all determine whether it will heat your home safely and efficiently.
Before installation, we evaluate your home’s layout, heating needs, and existing equipment. We discuss your comfort goals and help you choose a furnace that fits your home, your budget, and the way you live.
On installation day, our technicians:
Protect your floors and work areas
Remove the old system carefully
Install the new furnace with precision
Verify fuel, electrical, and airflow components
Run a full safety and performance test
Once everything is set up, we review the system with you so you understand how it operates and what to expect.
When a Furnace Replacement Saves Money in the Long Run
There comes a point where repairing an old furnace no longer makes financial sense. Repeated service calls, declining efficiency, and the risk of sudden breakdowns can add up quickly. A new furnace offers better reliability, lower energy consumption, and peace of mind during the coldest months of the year.
We’ll walk you through the numbers so you can make a confident, informed decision — without pressure or upselling.
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!
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!
EXCELLENT Based on 116 reviews Posted on Wade McKinnon2025-10-31Trustindex verifies that the original source of the review is Google. Miguel from Dave’s Heating and Cooling is very prompt and efficient. He did our Fall service and performed preventative maintenance. He is a very polite and capable technician.Posted on Max Evangelisti2025-10-24Trustindex verifies that the original source of the review is Google. Excellent customer service from my first phone contact to the site assessment through installation and clean-up, Dave's provided us with expertise and efficiency. The installation crew (Adam, Adam and Jesus) worked quietly and respectfully to minimize disruption. We are very pleased.Posted on Mark Rider2025-10-18Trustindex verifies that the original source of the review is Google. Very professional, helpful and friendly. If you need HVAC repair or maintenance, this is the place.!Posted on Arnold Small2025-10-15Trustindex verifies that the original source of the review is Google. This is a wonderful company to work with. Have used them for years & they offer exceptional service- reliable, instructive & generally very helpful.Posted on Lisa Burke2025-09-29Trustindex verifies that the original source of the review is Google. Our heat went out during the coldest part of winter, and Javier and his team responded immediately. Their professionalism and care made a stressful situation so much easier. We decided to replace both our heating and AC systems, and the quality of service, expertise, and overall experience we received was exceptional. We now have complete peace of mind knowing the job was done right, and we couldn’t recommend them more highly.Posted on BenKim Skehan2025-09-06Trustindex verifies that the original source of the review is Google. Our HVAC went out, and they offered the most affordable replacement by far. They were extremely professional, fast, and efficient—had everything up and running in just a couple of days. Highly recommended!Posted on Craytherine Ciszek2025-09-02Trustindex verifies that the original source of the review is Google. Since 2018 we have counted on the care and expertise of Dave’s team to keep our aging furnaces repaired and running smoothly. Each technician who has come to help has been knowledgeable, respectful and caring. This summer we needed to finally replace one complete HVAC system. Mike O’Neal worked with us using his years of experience in the field to come up with a uniquely tailored plan for our situation. Adam Colbert and his team did a fantastic job with the complex installation. Adam is a caring, confident expert and our system is working perfectly thanks to the knowledge and skills of Mike and Adam. Dave’s is a company to trust for the best HVAC service. Thank you for years of service and heart. The CiszeksPosted on Bobby R2025-08-29Trustindex verifies that the original source of the review is Google. These guys are my new go to for HVAC. We had an issue late day Friday and they got Adam out here to fix it. Adam was fantastic. He figured out the problem in minutes and fixed it right away. Super personable and incredibly friendly. Thank you guys for getting this done so late in the day right before the weekend, and thank you so much Adam for coming out so late on a Friday. Best HVAC experience ever.Posted on Steven Page2025-08-08Trustindex verifies that the original source of the review is Google. Great, fast service! Installed a new hot water heater and heat pump for us this year. Great experience working with a local company!Posted on Tiana2025-08-07Trustindex verifies that the original source of the review is Google. We've had a great experience with Dave's. The technician, Adam, is particularly fabulous. They are prompt, personable and give excellent service.