Heating & Air Conditioning Installation


Whether you need to upgrade or purchase a brand new heating or air conditioning system, Brennan Heating & Air Conditioning installers provide and install the highest-quality heating and air conditioning systems for residential properties of any size in greater Seattle and much of the Pacific Northwest. Brennan Heating & Air Conditioning installations provide high-quality central air and heating for properties of any size in greater Seattle and much of the Pacific Northwest. Reliable, experienced, fully trained and qualified – our technicians will get you cool (or warm) again in no time!

Heating and air conditioning installation for residential customers:

  • Sales and installation
    • Air Conditioning
    • Heat Pumps
    • Gas Furnace Replacements
    • Gas/Electric Conversions
    • Tankless Water Heaters
  • Many popular HVAC makes and models
  • Everything residential 
  • Pre-season start-ups
  • ENERGY-STAR rated

Our heating technicians are reliable, experienced, and fully trained and qualified. In fact, each technician averages more than 13 years of experience in heating- and cooling-system installation and repair. We also employ a number of senior technicians, many of which have 15-20 years of experience in the industry. Contact us today for a free heating installation cost estimate.