Trusted Home Services Across the Puget Sound Since 1987
HVAC Contractor in Shoreline, WA
When you need a full-service HVAC contractor you can trust in Shoreline, WA, turn to Brennan Heating & Air Conditioning. We specialize in transforming unpleasant indoor conditions. With our extensive expertise and unwavering dedication to excellence, we deliver nothing less than exceptional service. Providing comfort solutions for your home is a job that we enjoy and take pride in.
Whether you need help with a repair, maintenance, or a full installation, we’re available to do the hard work for you. Our heating and cooling company is a Lennox Premier Dealer, and our highly skilled technicians have NATE certification. Maintaining an A+ rating with the BBB is no challenge for us because we strive to exceed expectations. Trust us to fulfill all your needs to your complete satisfaction.
Energy Consultation
Heating and Cooling Repair
As the seasons change in Shoreline, you may find yourself in a dilemma if HVAC problems escalate. Faulty heating and cooling systems are often a nuisance because they can affect your comfort, safety, and energy bills. That’s why you shouldn’t ignore noticeable red flags, such as grinding or hissing sounds. Internal damage is the most common culprit behind noisy operation. If cool air doesn’t come out of the vents when you lower the thermostat, your air conditioner might be suffering from a mechanical issue. You should also know that a damaged furnace may overheat and shut off when you need it most.
Here are four more reasons to hire our HVAC company:
- Short cycling
- Unusual smells
- Unresponsive thermostat
- Increasing energy bills
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.
Quality HVAC Replacements
Replacing your systems at the right time is a rewarding measure. If your comfort appliances have been running for 10 or more years, let our heating and cooling company provide you with excellent replacements. Older furnaces and air conditioners tend to waste energy by working harder than usual. Irregular cycles can lead to unexpected breakdowns. To ensure the comfort and safety of your home, consider upgrading sooner rather than later. As a reputable HVAC contractor with an expert team, Brennan Heating & Air Conditioning offers top-notch installation services that exceed industry standards and customer expectations.
Energy Consultation
Shoreline HVAC Contractor for Maintenance
Don’t look past our heating and cooling company if you need a regular maintenance plan. By taking care of your climate control systems every year, you can avoid costly malfunctions. Professional tune-ups are effective at keeping components in tip-top condition. New filters increase airflow and boost efficiency. After removing dirt buildup and lubricating vital parts, you can count on the equipment to function at peak performance. Well-maintained heating and cooling appliances have a longer life span and operate more quietly.
Call us today at Brennan Heating & Air Conditioning if you want to work with a top HVAC contractor in Shoreline.
From food banks to foster care, Brennan is proud to give back to the communities that trust us with their comfort.
