Schedule Service Proudly Serving Western Washington since 1987 24/7 Emergency Service 1 (877)-BRENNAN 2736626 MENU About Us Over 30 Years Serving the Puget Sound Since 1987, Brennan Heating & Air Conditioning has served tens of thousands of satisfied customers throughout the Puget Sound region. Our goal is to help you make your home more energy efficient — while saving you money. We offer a wide variety of home improvement products including furnaces, air conditioners, heat pumps, hydronic heating systems, indoor air quality products, gas water heaters, tankless water heaters, and more. Regardless of your home heating and cooling needs, our energy consultants will work with you to find the right products at the right price. We guarantee our workmanship and we’ll treat your home with care and respect. And when it comes to service, we have knowledgeable technicians who will keep your equipment running smoothly for years to come. At Brennan Heating & Air Conditioning, We’Re The Ones To Call To Make Your House More Comfortable And Energy Efficient. Ask Us About The Brennan Promise®! 24/7 EMERGENCY SERVICE AVAILABLE CALL US TODAY AT 1 (877)-BRENNAN Contact Us Brennan Heating & Air Conditioning 4601 S 134th Pl Seattle, WA 98168 6414 204th St SW, Suite 200 Lynnwood, WA 98036 Hours of Operation: 7:00am-5:00pm Monday-Friday 8:00am-4:30pm Saturday 1 (877)-BRENNAN Our Service Guarantee We guarantee our workmanship and we’ll treat your home with care and respect. And when it comes to service, we have knowledgeable technicians who will keep your equipment running smoothly for years to come. CONTACT US TODAY! © 2021 Brennan Heating & Air Conditioning. License #BRENNHA971R9. Privacy Policy Web Design and Internet Marketing by RYNO Strategic Solutions