Emergency Services Available!
Contact us at: (703) 395-3916

We service all major brands, and more!

Our Certifications

I have used Kelvin Services on two occasions and was pleased with the service both times. Once for the A/C unit and the other for the Heat/HVAC system. In both cases, the technician quickly identified the problem and made the necessary repairs for a reasonable price. Jay T
Homeowner in Annandale

Heating and Cooling Company Providing Energy Efficient Options 

Serving as your HVAC company in Annandale, VA & the surrounding counties, we’re dedicated to providing same-day services and affordable solutions for all your HVAC needs.



Quick & Responsive HVAC Services Throughout Annandale and the surrounding areas in Northern Virginia

Keeping your home at the perfect temperature is our #1 priority!

We know homeowners rarely notice HVAC systems until they stop working. It’s not only our job to serve you during these times, but also to educate you on preventative maintenance options to keep your systems running for the long haul! As an established HVAC business with over 20 years of experience in the field, we can guarantee we’ll only recommend the best solution for your needs.

As fully licensed and insured technicians, we guarantee providing honest, ethical, and reliable service for anyone in the Annandale, Fairfax, Alexandria, and Prince William counties.

We Can Handle Any Installation Or Repair Related To:

  • AC Units
  • Gas Furnaces
  • Electric Furnaces
  • Heat Pumps
  • Humidifiers
  • Water Heaters
  • Gas Leaks
  • Duct Cleaning Work
  • Ventilation Systems
  • Air Quality Systems
  • Gas Boilers
  • & More!

Kelvin HVAC is One of Annandale’s Largest Dealers of Top-Name, Energy-Efficient Equipment.

We offer competitive prices and quality installations for the leading brand name equipment.

  • 10-Year Warranty on New Installations
  • 3-Year Part & Labor Warranty on New Installations
  • 6-Months Part & Labor Warranty on Services