Since 1987, Brennan Heating & Air Conditioning has served tens of thousands of satisfied customers throughout the Puget Sound region. 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.
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.
Services
We service all types of heating and cooling equipment including furnaces, air conditioners, heat pumps, tankless water heaters, and gas water heaters, hydronic heating systems, indoor air quality products, and more. If heating or cooling installation is needed, we offer the newest and most efficient equipment available.
We're ready to get your household back up and running with the hot water you need and carry three of the best lines of top-quality water heaters - Rinnai, Bradford White, and AO Smith. These water heaters feature the latest technology to give you energy-saving, safe and reliable operation. Our expert water heater technicians will work with you to ensure that you choose the water heater that is best for your household.
Our experienced and highly trained electricians, along with our support staff, can take care of all your residential electrical needs - from bad outlets to panel upgrades. Our goal is to meet the electrical needs of our community by supplying services distinguished by quality and value in a way that demonstrates our professionalism and dedication to excellence.
Brennan Heating & Air Conditioning offers professional heat pump installation in Seattle, WA and surrounding cities from top manufacturers such as Lennox and Carrier. If you're looking for an effective and energy-efficient way to maintain the temperature of your home, contact us to discuss the benefits of a heat pump.
Whether you need to upgrade or purchase a brand new heating or air conditioning system, Brennan Heating & Air Conditioning provides and installs the highest-quality heating and air conditioning systems for residential properties of any size in greater Seattle and much of the Pacific Northwest. Reliable, experienced, fully trained and qualified - our technicians will professionally install the equipment you need to be comfortable in no time!
Reviews (18)
Jacklyn Barnes
Jan 02, 2022
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New furnace was installed, first time we turned it on it wouldn't work come to find out the brand new units motor was garbage. The guy installing it was unprofessional and smoking in our garage. Someone came out to check it and had to wedge a penny in part of the motor and wiring to get it to work until the new motor came in. Then when it snowed 2 days ago the exhaust pipes froze expanded and broke in half, we called them and they told us sorry its not under warranty due to weather, they guy said if he were to come out (15 min away) he would have to charge us a few hundred dollars just to look
Gloria Johnson
Dec 16, 2021
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Katie Buchl
Dec 14, 2021
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HVAC and furnace failed inspection several times. City inspector was very surprised by the “quality” of work. Specialist almost “persuaded” me to install the unit in a location that does not comply with Seattle standards. One-star because Brennan provided contradictory information related to what maintenance included and cost of maintenance.
Mariana Mason
Nov 27, 2021
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Spokane Mac
Nov 26, 2021
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Worst estimate for service for replacing a water heater I have ever encountered. After 2 weeks of waiting and several emails with pictures repeating already answered questions I receive a two line "estimate" of $3910 + tax + Permit for nearly $4500 without one shred of information as far a break out of costs. How Peter the estimator came to this pie in the sky price is beyond me as nothing else was communicated even after I submitted pictures and measurements for a simple 40 gallon gas water heater easily reached to service. THIS is the kind of company that ONLY wants to "Service" you in an emergency
Ryan Rowe
Nov 18, 2021
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Brennan was able to repair our aging furnace. The technician who was originally dispatched was inexperienced and diagnosed the issue incorrectly. As a result, the incorrect replacement part was ordered. The technician who came to install said part immediately noticed the error and ordered the correct part. This caused about a two week delay in the repair of our furnace.
It's a little difficult to get a hold of someone by phone; usually you have to leave a voicemail and get a callback but eventually, the correct part was ordered, received, and installed with no extra cost and the furnace is in
It's a little difficult to get a hold of someone by phone; usually you have to leave a voicemail and get a callback but eventually, the correct part was ordered, received, and installed with no extra cost and the furnace is in
Elizabeth Morris
Oct 01, 2021
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The work performed at our home was outstanding. The crew showed up on time, in company trucks and ready to work. They were all polite, considerate and professional. All flooring was covered to prevent any damage and everyone left their shoes outside my front door. All members of the crew worked quickly and efficiently. In one day, we had new gas lines, electrical wiring, multi-functional thermostat and complete AC unit. Before the crew left the house, I was given a tour of what was completed, where everything was located and how the machinery installed worked. They could not have done a better
Ngonyo Mwangi
Sep 16, 2021
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Brennan installed my furnace through Costco in 2019. They gave 5 year warranty for labor. The system has had issues on and off and they charge each time for coming out. On 8/19/21 they did a regular maintenance and indicated they'd checked everything out. They did not replace the filter even though it is included in their maintenance charge because we had the 4inch. When we switched the system to heat on 9/17 as temperatures had dipped. We had an error code 270- Flame failure. On calling Brennan, they informed me they would charge $149 for coming out and worse still were not available until 3 weeks
Weiqian Yang
Aug 28, 2021
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We contracted with Costco to install AC and Brennan is the company that came did the initial consultation, measure and installation (not happening in the end). The energy consultant John was very friendly and easy to work with. He provided prompt response and did the measurements and reassured us everything was ready for the installation day, which would be a month later. Although he broke a piece of our trim when accessing the attic, he was kind enough to let me know that he would make sure to let his crew fix it for me. Everything was good until the installation day.
The crew came after a month
The crew came after a month
Christine Lamphere
Aug 04, 2021
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I've used Brennan in the past for my furnace always have wonderful service. But I called twice for a estimate on a cooling system from sales and still nothing. I get your busy but come on call back at least to acknowledge that I called.
Thank you for responding. I understand your busy. I just needed to know where we were in being contacted.
Thank you for responding. I understand your busy. I just needed to know where we were in being contacted.
Tammy Kathryn Conklin
May 26, 2021
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Was super excited for AC, paid in full- no credit card. Unit was put in a week ago. It has gone out 3 times within this last week. One person says oh it’s just the prongs. Nope. 1) thermostat was not mounted correctly. 2) they didn’t put a cap on the ac vent in the attic so it was shooting moisture into our furnace. The electrician that came out… was incredibly rude, cussing in front of my kids, snapping at me when I responded, “I don’t know,” to a question. I also have them on video playing basketball in my driveway. All around a cluster of issues. And now
Brandi Hubbard
Mar 19, 2021
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Troy Young
Mar 09, 2021
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Judeth McKindley
Feb 26, 2021
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Timely and professional service. I had a water heater go bad and I was working with my warranty company to get it repaired. Brennan was recommended to me after others were less than eager to help. There ended up being additional electrical issues that Brennan not only helped with promptly, but each repairman that I interacted with was courteous and diligent. I will continue the tradition of referring Brennan to anyone who is in need of service. A+++ Peter, Diego, RJ and Reece! Thank you so much!
Belinda Williams Worley
Feb 15, 2021
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Melissa Falk
Feb 11, 2021
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Carlos came out to our home the same day I called for service. He was on time and provided top notch service in a timely manner. He explained everything he found and what he was doing and didn’t try and sell me on services we didn’t need. He was friendly and personable and was a pleasure to have in our home. I would highly recommend Brennan based on our experience with Carlos!
Gary Beckner
Feb 05, 2021
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We replaced our 27 year old electric forced air furnace and added a heat pump. It is working great. The whole install process went very well, a competitive price, and hands-on service from start to finish. Seamless and coordinated scheduling of the various specific trades involved. Thanks Nick and crew.
Steve Quisenberry
Feb 03, 2021
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