Trusted Home Services Across the Puget Sound Since 1987
HVAC Contractor in Mukilteo, WA
Brennan Heating & Air Conditioning is a highly regarded HVAC contractor in Mukilteo, WA, that has been serving residents since 1987. Boasting a team of NATE-certified and EPA-certified technicians, our heating and cooling company can repair and maintain any make or model of furnace, heat pump, or mini-split.
As a Lennox Premier Dealer, we are recognized for our expertise but can service all makes and models, completing projects of all sizes. Our stellar customer care and professional work have allowed us to maintain an A+ rating with the BBB. We’ve also won the Angi List Super Service Award for 13 consecutive years!
Energy Consultation
Mukilteo’s HVAC Contractor for Lasting Repairs
If your system starts malfunctioning, it may show signs you should be aware of. For example, the system may run indefinitely without reaching your desired temperature, or it may shut down before completing a full cycle. At other times, such as when there is a loose or out-of-balance component, you may hear a loud noise like banging or rattling. Another sign, though less obvious, is a rise in your energy bill. Unless you make a significant change to your heating or cooling schedule, the amount should remain consistent. Bring in a professional at the first sign of trouble, and you will get an accurate diagnosis along with a reasonable project estimate. Most repairs can be done on the same day.
Service That Speaks for Itself
See Why Western Washington Homeowners Love Brennan
-
“Detail-oriented and their technicians spend time teaching you the system. I also can’t believe they also came back the next day to caulk a tiny hole they made. You get quality with Brennan.”- Marcin N.
-
“The install team was great. They were all experienced and really enjoyed their jobs, and it showed. I love our new Carrier 38MURA hvac system already, and it's not even hot out yet.”- Melissa R.
-
“Bryan & Michael arrived early as I requested and worked hard to clean the furnace vents, returns, and ductwork, including the dryer vent. Our daughter had recently used Brennan & recommended the company. I am delighted with the results.”- Janie H.
-
“The service was extremely professional, courteous, respectful, and knowledgeable. We loved Dakota & Brian!”- Lloyd N.
-
“Excellent and efficient service. Brayan Rodriguez and Giovanni did a great job. Brennan will be my go to for services needed”- Diane V.
-
“The services provided by the Brennan staff were outstanding. Sergio & James were on time, completely explained the 5 W's before starting, they were efficient, cleaned up as they worked, explained how each part of the system functioned.”- Steve S.
-
“I had Brennan come today to clean my air ducts. Since this was the first time having it done, it was reassuring to know it’s a pretty simple & fast process, and totally affordable. You're always in good hands with them.”- Sandy M.
-
“Our experience from estimate to installation was outstanding! Their price and quality of installation were a great deal. I highly recommend them for any Water Heater, AC, or Heating needs!”- Douglas D.
Service You Can Rely On. People You Can Trust.
A member of our team will be in touch shortly to confirm your contact details or address questions you may have.
-
Smarter, Safer, & More EfficientFrom high-efficiency HVAC installs to LED lighting upgrades and surge protection, we’re here to improve the way your home feels—and functions—year-round.
-
Award-Winning CareMulti-year Angie’s List Super Service Award winner with an A+ BBB rating, Brennan is Seattle’s trusted partner for top-tier heating, cooling, and electrical services.
-
Integrity Meets InnovationFrom certified energy consultants to licensed electricians, our team brings you forward-thinking solutions backed by time-tested values of honesty, reliability, and expert care.
-
Trusted Since 1987With decades of experience and thousands of satisfied customers, Brennan delivers worry-free heating, cooling, and electrical solutions with service you can count on.
Ways To Save With Brennan
From flexible financing to energy-efficient upgrades—we make comfort more affordable.
-
Flexible FinancingDon’t let budget concerns delay your comfort. We offer trusted financing options to help you move forward with confidence. -
Current SpecialsWhether it’s seasonal savings or limited-time discounts, we’ve always got a way to help you save more.
-
Energy RebatesEligible HVAC upgrades could qualify for big rebates under the Inflation Reduction Act. Let’s help you save while going green.
Heating and Cooling Company Installations
You’ll want someone from a heating and cooling company to help you determine when the right time is for replacement. In the case of traditional heat pumps and gas furnaces, you should consider replacement after 10 to 15 years. Ductless heat pumps can last up to 30 years with proper maintenance, but they, too, will need replacing. With many options to choose from, you want the most energy-efficient unit your money can buy. At the same time, you have to consider things like the system’s blowing capacity. If it’s too strong for your home, you’ll get uneven heating and cooling, which no repair will be able to address. Our technicians will perform a load calculation and do much more to help you through the selection process.
Energy Consultation
HVAC Company for Annual Maintenance
Annual maintenance can ensure a long lifespan for your system and even reduce your monthly energy expenses. The nice thing is that maintenance visits take only one to two hours of your time. Maintenance helps to find problems before they result in system replacements or, at the least, expensive repairs. Maintenance is also a requirement from manufacturers, who will not honor the warranty if maintenance service is not performed every year. It is best to have your heater adjusted during fall and spring for your air conditioner.
Here’s some tasks that maintenance covers:
- Clean air handler
- Clean condenser unit
- Refrigerate line leak inspection
- Airflow testing
- Lubricate and tighten parts
- Thermostat calibration
- Safety checks
If you live in Mukilteo, make Brennan Heating & Air Conditioning your go-to HVAC contractor. Call our friendly office for an appointment!
From food banks to foster care, Brennan is proud to give back to the communities that trust us with their comfort.
