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HVAC Contractor in Herndon, VA
If you’re looking for a reliable HVAC contractor in Herndon, VA, look no further than Dave’s Heating & Air. We specialize in heating, air conditioning, indoor air quality, and water heater services, ensuring your home stays comfortable year-round. Our trained and experienced technicians provide high-quality service, whether you need a repair, replacement, or regular maintenance.
Schedule an appointment for your HVAC Services in Herndon, VA.

Call 571.346.3940 to schedule your heating or AC repair in Herndon
WHY CHOOSE US?
- Trusted & Professional Team – Our certified experts provide exceptional service, prioritizing quality, integrity, and reliability.
- Licensed, Insured & Code-Compliant – We are a fully licensed contractor with the necessary permits, Workers’ Compensation, and liability insurance, ensuring you avoid the risks of unlicensed work, improper permits, and uninsured contractors that could jeopardize your safety, insurance coverage, and property value.
- Industry Affiliations & Expertise – As a committed member of leading trade associations, we have access to the best products, cutting-edge technologies, and advanced training to ensure superior service and expertise for our customers.
- Savings Through Maintenance Plans – We provide customer discount programs through our affordable semi-annual maintenance plans, offering Priority Service, Discounted Rates, Special Savings, and a precision tune-up with a safety check, delivering exceptional value with potential energy savings and peace of mind.
- Prompt & Reliable Service – We focus solely on repair services and equipment replacement, ensuring our skilled specialists are always available to promptly and effectively address your needs.
OUR SERVICES
Top-Notch AC Repair and Replacement in Herndon
There’s nothing better than stepping out of the hot, humid outdoors into a home where it’s cool and fresh. But when your air conditioner fails, this feeling of relief is out of reach. That’s when it’s time to call 571.346.3940.
We provide air conditioning services in Herndon, covering everything from basic cooling repairs to full system installations. To make mid-season breakdowns less likely, we also provide comprehensive AC maintenance. No matter the brand or the size, our experts are ready to service your unit.
Stay Cozy with Our Heating Repair and Replacement Solutions
Have you ever had to deal with a malfunctioning thermostat when the cold is unbearable? Is your furnace on its last legs? We know that no one ever wants to go through that. Fortunately—as a Herndon resident—Dave’s is just a step away. Rely on us to repair your furnace or heat pump and get you back on the road to comfort. If replacing your heating equipment is the only option, we’ll provide you with a transparent quote prior to starting work.
Indoor Air Quality Service from Trusted Professionals
From pet dander and secondhand smoke to VOCs and dust, there are many factors that affect the quality of Herndon’s indoor air. The American Lung Association reports that poor indoor air quality can lead to several health complications for you and your family. With your health and safety in mind, our thoroughly vetted technicians have mastered the craft of indoor air testing and purification.
Sometimes, the problem is the indoor humidity level. In those cases, we might recommend a Herndon dehumidifier installation. We also provide dryer vent cleaning, high-efficiency filter installations, air exchanger service, duct cleaning, and air purifier installation.
Water Heater Trouble in Herndon? Don’t Worry!
f you’re having trouble with your water heater, it’s time to reach out to someone who can make the problems go away.
Water heater problems vary from faulty heating to noisy operations and even leaks. Our Herndon professionals are trained to handle it all. Call us the moment you detect an issue, and we’ll take care of it by installing a new system or repairing the current one.
We also provide tankless water heater services to help you go tank-free.
Get Year-Round Comfort with Professional HVAC Maintenance in Herndon
One common mistake that homeowners make is forgetting to maintain their HVAC units. Just like your plants need watering every so often, your HVAC units also need some attention. We offer routine maintenance services to keep your property in tip-top shape no matter the weather.

Competitive Pricing and Friendly Financing for a Happy Customer
As a family-owned operation, we know the cost implications of hiring HVAC contractors. That’s why we have done our best to ensure that you can access the best quality services at friendly prices. We also offer financing options and special offers to take the bite out of Herndon furnace replacement.
What Do Our Customers Say?
Our services are our way of giving back to Herndon. Through our work, we think we provide comfort and joy to our customers. And it seems like many of them agree! The glowing reviews and recommendations we receive are enough motivation to keep us going.
EXCELLENT Based on 108 reviews 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! 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. Diana Clemente2025-08-07Trustindex verifies that the original source of the review is Google. Good service from Dave's. Todd was very helpful and responsive. Unfortunately part of it was installed incorrectly so there was some follow up needed but that was taken care of quickly also. Constance Washington2025-08-06Trustindex verifies that the original source of the review is Google. On 4 June 2025, Dave’s Residential Heating & Air Conditioning installed a Heat Pump Full System in my home. I wish rate the installation as five stars. The installation crew were courteous, efficient and professional. Regards, Constance W. Andi Lohr2025-08-06Trustindex verifies that the original source of the review is Google. I am a long time customer of Dave’s Heating & Air Conditioning. The service has always excellent and the technicians are friendly. I had a new heat pump installed in May and I am enjoying being nice and comfortable all summer long. Thank you for the excellent service over the years! You have wonderful staff❣️ Lois Sohn2025-08-06Trustindex verifies that the original source of the review is Google. It was a five-star experience from start to finish working with Todd and the installation technicians with Dave's Heating & Air Conditioning. They recommended the most suitable unit for us based on our needs and HOA requirements. We couldn't be happier with the unit they installed. The installation went smoothly, and the installers provided useful information for efficient operation and support needs down the road. Andrew Goldsmith2025-08-05Trustindex verifies that the original source of the review is Google. A truly outstanding company! From Javier the owner to Mike and Adam the technicians, they are total pros! This job involved installing an Ecobee thermostat and converting a communicating system into a legacy system. Everyone has been direct and pleasant. Adam was meticulous during the installation. When the system needed to be adjusted, Javier offered to send out Mike who tweaked a few things to make everything work perfectly. We would certainly use Dave’s again and will recommend them to our friends and relatives! Carlos Bradshaw2025-07-31Trustindex verifies that the original source of the review is Google. Javier and his team did a wonderful job. We lost our AC on a Saturday, they came same day,got us a quote and were able to install a new system within a few days. Would recommend to anyone looking for a reliable HVAC vendor. Rosemarie Iarrobino2025-07-28Trustindex verifies that the original source of the review is Google. I just want to take a moment to sincerely thank you for the consistently, wonderful service you’ve provided over the years. I have been with Dave’s since 1991, and I can honestly say it’s been a pleasure every step of the way. From the moment I called, Javier was Kind, responsive and professional. He made what could have been a stressful situation so much easier and I am grateful. Adam was not only very skilled as usual but friendly and respectful of my home. These qualities seem hard to come by these days. So many of your technicians have been wonderful through the years. Whether it’s a routine maintenance or an emergency visit to replace the water heater, I am Always confident knowing I can trust and depend on Dave’s Heating. Thank you all for your continued dedication to your customers. You’re the Best. Rosemarie Nicastro Iarrobino. Elissa Brooks2025-07-27Trustindex verifies that the original source of the review is Google. 10/10. Great customer service, very fast and a fair price. Could not recommend more!
Professional HVAC Contractor Serving Herndon, VA, and Surrounding Areas
Our team is dedicated to providing fast, efficient solutions to get your system back up and running in no time. Trust Dave’s Heating & Air for reliable, top-notch service that keeps your home comfortable. Contact us today at 571-346-3940 or schedule an appointment online for expert HVAC services.
Schedule an appointment for your HVAC Services in Herndon, VA.
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Contact us at 571.346.3940 or schedule with us to make an appointment for water heater installation or furnace repair.