Desktop version
Ajax Contracting LLC, Electrical & HVAC Contractors



Our full range of residential HVAC services includes new equipment installation, design & build (mechanical design, load calculation, permit services), air duct installation, equipment replacement, service repairs and maintenance contracts. We are also certified by the Dominion Virginia Power as their selected local contractor to provide heat pump tune-up and upgrade rebates.

We specialize in equipment such as air conditioners, heat pump units, air handlers, gas furnaces, and ductless split systems. We are your local factory-trained and authorized TRANE dealer, a certified LG Excellence Contractor. We also sell, install and service other brands of HVAC equipment, such as Goodman, YORK, Amana, Ruud, Bryant, Mitsubishi, etc.


Our residential electrical services include electric panel upgrade, electrical renovation, new construction, design & build. We have extensive experience on energy efficiency lighting (CFL, LED) and lighting controls.

Service Area

  • Fairfax County, VA
  • City of Fairfax, VA
  • Loudoun County, VA
  • City of Leesburg, VA
  • Prince William County, VA
  • City of Manassas, VA
  • Arlington County, VA
  • City of Alexandria, VA
  • Montgomery County, MD
  • City of Rockville, MD

Find us on Yelp

Online Services

Service Inquiry
Make Payment