Trusted Home Services Across the Puget Sound Since 1987
HVAC Contractor in Bothell, WA
Brennan Heating & Air Conditioning is a quality HVAC contractor in Bothell, WA. Whether you need a new furnace installed in your home or your air conditioner needs a tune-up, our staff will be more than happy to assist you.
We are a heating and cooling company that has served homeowners in Bothell and the surrounding areas since 1987, and we always make customer comfort and satisfaction our goal.
Energy Consultation
A Quality HVAC Contractor in Bothell
As with most things in your home, it’s best to catch any HVAC-related issues early before they become too costly or difficult to repair. It can be difficult to know when your furnace or air conditioner requires repairs.
There are, however, some signs you can keep an eye out for:
- Rising utility bills
- Rooms that heat or cool unevenly
- Strange sounds such as rattling, banging, or screeching coming from your unit
- Strange smells such as burning plastic or rotten eggs
Furnace and Air Conditioner Installation
An HVAC installation will no doubt be necessary if you’re building a new home, but you might also need a new furnace or air conditioner if your system is over 10 years old or if it needs frequent repairs.
The cost of a new HVAC system might seem high, but it could save you money on repairs in the long run. Our team of HVAC contractors will help you find the right furnace or air conditioner for your home.
Service That Speaks for Itself
See Why Western Washington Homeowners Love Brennan
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“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.
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“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.
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“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.
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“The service was extremely professional, courteous, respectful, and knowledgeable. We loved Dakota & Brian!”- Lloyd N.
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“Excellent and efficient service. Brayan Rodriguez and Giovanni did a great job. Brennan will be my go to for services needed”- Diane V.
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“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.
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“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.
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“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.
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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.
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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.
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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.
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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.
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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.
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Energy RebatesEligible HVAC upgrades could qualify for big rebates under the Inflation Reduction Act. Let’s help you save while going green.
The Importance of HVAC Maintenance
Your heating and cooling system will require regular maintenance to keep working efficiently. You should schedule at least one maintenance visit each year to have a qualified HVAC contractor perform a check-up on your heating and cooling system.
Not only does this keep your HVAC system running at peak efficiency throughout the year, but it might uncover minor issues before they become serious problems that will be more expensive to repair.
It’s best to have your HVAC system inspected in the early spring before the main cooling season and the early fall before you need to turn on your heat.
Whether you need your HVAC system replaced completely or it’s due for a routine check-up, Brennan Heating & Air Conditioning will be happy to assist you. As the top heating and cooling company in the region for more than 30 years, we are more than capable of serving all of your HVAC-related needs.
For more information about our services or to find a reliable HVAC contractor who can help you, contact Brennan Heating & Air Conditioning in Bothell today.
Energy Consultation
From food banks to foster care, Brennan is proud to give back to the communities that trust us with their comfort.
