Trusted Home Services Across the Puget Sound Since 1987
HVAC Contractor in Issaquah, WA
When you choose Brennan Heating & Air Conditioning for your heating and cooling needs in Issaquah, WA, you can count on a fast and friendly HVAC contractor. We’ve built a strong reputation for being a trustworthy HVAC company by putting our customers first. We take the time to listen to your concerns, answer any questions you might have, and provide dependable service.
We know that when you reach out to us, you need help right away. Whether you need your air conditioner repaired, a new furnace installed, or maintenance, our heating and cooling company technicians are here to help you.
Energy Consultation
Issaquah HVAC Contractor Repair Services
When your heating or cooling system breaks down, you need a reliable HVAC company. We respond quickly to every repair request. Our goal is to identify the problem and apply a long-lasting solution so that you can get back to enjoying your life. Even if you’re diligent about changing your filter, your HVAC system may need extra support occasionally. Some typical repairs include leaking refrigerant, a clogged drain line, pooling near the furnace, vents blowing out cool air when the heater is on or hot air when set to cool, some areas are hotter or colder than the rest of the house, and much more.
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.
Professional HVAC Company Installations
We aim to fix heating and cooling systems for as long as possible while keeping the costs reasonable for everyone. If you have an outdated system, you will eventually reach a point where replacement is the best option. Maybe you’re considering upgrading to a more energy-efficient system as an investment in your home. That decision can make a significant difference to your energy bills as well. You can also count on us as your local HVAC contractor in Issaquah to be available for installation on newly constructed homes.
Consider the most common signs that it’s time for your heating and cooling company to replace your HVAC system:
- Constant repairs and breakdowns
- Works harder but same results
- High energy bills
- Outdated system 15+ years old
Energy Consultation
Heating and Cooling Company Maintenance
There aren’t many ways to extend the life of your HVAC system, but one is by scheduling HVAC maintenance. The best maintenance consists of routine tune-ups completed by your local HVAC contractor. These appointments allow one of our technicians to clean critical components of your heating or cooling system. We inspect for loose wires, damaged parts, and other minor issues that might otherwise cause more significant problems as time passes. To make maintenance easier, our heating and cooling company offers the convenience of a tune-up plan. That ensures you receive adequate maintenance services to keep your system working efficiently from one season to the next.
If you need a dedicated Issaquah HVAC contractor, contact our friendly team at Brennan Heating & Air Conditioning today.
From food banks to foster care, Brennan is proud to give back to the communities that trust us with their comfort.
