Business Details
39 Years
experience
Emergency
services
Trusted HVAC, Plumbing & Electrical Services in Seattle
Since 1987, Brennan Heating, Air Conditioning, Plumbing Heating, Air Conditioning, Plumbing, and Electrical has served Western Washington homeowners with trusted HVAC, plumbing, and electrical solutions. Our team of NATE-certified technicians prioritizes safety, energy efficiency, and customer education, delivering services ranging from emergency repairs to system installations. With an A+ BBB rating and 13 Angie's List Super Service Awards, we combine decades of experience with factory-trained expertise to ensure reliable performance. We offer free energy consultations, flexible financing, and comprehensive warranties while maintaining a commitment to community involvement. Our technicians undergo rigorous training in safe work practices, and we guarantee our workmanship with clear communication and transparent pricing.From furnace replacements to air quality improvements, we address every project with precision and care. Our 24/7 emergency services ensure prompt assistance for urgent heating, cooling, or plumbing issues across Seattle, Bellevue, Kirkland, and surrounding areas. With a focus on long-term customer relationships, we treat every home with respect and deliver solutions tailored to individual needs. Our reputation for quality workmanship and exceptional service has made us a go-to resource for thousands of satisfied homeowners.
Services
HVAC Installation
Plumbing Repairs
Electrical Services
Air Quality Solutions
Emergency Maintenance
Details
- Year established: 1987
Highlights and features
- 38+ years of local HVAC experience with factory-trained technicians
- 24/7 emergency services with same-day appointments available
- Free energy consultations and transparent pricing
- A+ BBB rating with 13 Angie's List Super Service Awards
- Comprehensive warranties covering both products and workmanship
Associations and certifications
- Better Business Bureau
- Angie's List Super Service Award
What people say
Detail-oriented technicians
Same-day emergency service
Clear explanations
Thorough follow-up
Competitive pricing
Services
HVAC Installation
Our certified technicians install energy-efficient heating and cooling systems tailored to your home's needs. We offer Lennox products with SEER ratings up to 26 and 98% AFUE furnaces. Every installation includes a free energy consultation and 10-year factory warranties.
Emergency Plumbing
Available 24 hours a day for urgent plumbing issues including burst pipes, water heater failures, and severe leaks. Our rapid response team carries common replacement parts and guarantees same-day service during regular business hours.
Electrical Services
From panel upgrades to EV charging station installations, our licensed electricians handle residential electrical needs. We specialize in surge protection systems and code-compliant wiring for safety and efficiency.
Air Quality Improvements
We install whole-house air purifiers, HEPA filtration systems, and humidity control solutions. Our Aeroseal duct sealing technology improves HVAC efficiency by up to 40% while reducing allergens in your home.
Maintenance Plans
Our maintenance membership includes twice-yearly system inspections, priority scheduling, and exclusive discounts. Regular tune-ups extend equipment lifespan and maintain manufacturer warranty validity for HVAC systems.
Questions
What HVAC services do you offer?
We provide complete HVAC solutions including furnace/AC installation, heat pump repairs, ductless systems, and annual maintenance for residential customers.
Do you offer emergency services?
Yes, our 24/7 emergency team responds to HVAC, plumbing, and electrical issues with same-day service available during regular business hours.
What financing options are available?
We offer approved credit financing through Wells Fargo and Lennox Financial Services for qualifying customers with terms up to 60 months.
Are you licensed and insured?
Yes, we hold Washington state HVAC license #BRENNHA971R9, plumbing license #BRENNHC795OO, and electrical license #BRENNHA962DU with full liability insurance.
What areas do you serve?
We serve all Western Washington including King, Snohomish, Pierce, Kitsap, and Mason counties from Seattle to Bremerton and Olympia to Wenatchee.
Do you offer maintenance plans?
Yes, our Comfort Club membership includes twice-yearly system inspections, priority scheduling, and exclusive discounts on repairs and replacements.
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Reviews (6)
Lisbet Rubbe
Jun 13, 2022
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We purchased a furnace and air conditioning unit from this company through Costco, so we thought it would be a good company to deal with. My previously warm in winter master bedroom now requires a separate heater, and I still have to use the loud portable air conditioner in my Master which is the reason I purchased central air, so I wouldn't need that thing. Brennan doesn't have a solution for this other than, Yea, that happens sometimes. WHAT?! Why didn't you install a furnace and air conditioning system that would work in our home? Thank you for responding. please let me know who I should contact. I would very much like to discuss.
Marty Piecyk
Jun 02, 2022
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I've been communicating with them for 9 months trying to get central air conditioning through Costco. If I don't email and call them multiple times, all communication comes to a stop. I'm even waiting for a callback now for the past two months of how they will get the system to fit. My pregnant wife was mad. I've gone with another company, All Climate, and got central air conditioning in under 2 months now, and never needed to call or email multiple times. My wife and I are happy and cool now. I know others had good experiences with Brennan, but I hope they can do better!
Dan D.
Apr 26, 2022
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Forget customer service after they get your signature and you're down payment. What they don't tell you upon signing is that YOU ARE responsible for scheduling both the electrical and mechanical inspections. They sent the lone installer out in blinding rain and 35 mph wind gusts where he had to climb up a ladder 30 feet. They DEMAND payment BEFORE the inspections are completed. They are patheticely slow to respond, the office contact is snotty, and follow up is non existent.
Red Wine Please
Apr 20, 2022
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The Brennan Heating and AC team was composed of 4 workers: Installer, HVAC technician, electrician, and a helper. They took out the 30 years old electric air handler and heat pump and installed a new Lennox system. One challenge they had was to connect the existing duct work to the new system. They struggled but persevered. I have to commend the installer for how he handled the frustrating task of connecting the unit.
The electrician ensured we were up to code by installing an outlet accessible to the heat pump. The technician informed me that the hole through the foundation for the pipes from the heat pump to the air handler was not large enough to accommodate foam insulation. But it wasn't a significant heat loss. The helper was attentive to the other's needs. Standing by and stepping in to assist when needed.
They worked as a coordinated team which was satisfying to watch. They cleaned up the debris and scraps and took the old dirty system away. Scheduled in April is an air duct cleaning. The system is quiet and heating well. The COSTCO cash card coming in a couple weeks is a plus.
The electrician ensured we were up to code by installing an outlet accessible to the heat pump. The technician informed me that the hole through the foundation for the pipes from the heat pump to the air handler was not large enough to accommodate foam insulation. But it wasn't a significant heat loss. The helper was attentive to the other's needs. Standing by and stepping in to assist when needed.
They worked as a coordinated team which was satisfying to watch. They cleaned up the debris and scraps and took the old dirty system away. Scheduled in April is an air duct cleaning. The system is quiet and heating well. The COSTCO cash card coming in a couple weeks is a plus.
Richard Buchanan
Mar 02, 2022
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Raymond Jones did an excellent job installing our Heat Pump. Working under trying conditions including a shallow crawl space and rain at times during the outside work Raymond kept our house clean while performing a very professional installation. If you have work done by Brennan I would highly recommend Raymond Jones. Definitely a 5-Star rating for Raymond.
Jeff Hogue
Jan 20, 2022
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DECEITFUL SALES TACTICS! I called Brennan Heating & Air and told them I had a 15 year old furnace that needed repair. They came out and the service tech told me they have a company policy to not repair systems that old. I clearly told the phone rep how old the system was. They then charged me $197 for new quotes. When I followed up, they said they don't charge for quotes! Worst of all, once I wrote a review they reached out to me offering a refund which they never actually issued (it's 3+ weeks later now). Absolutely scummy tactics. Not recommended and deceitful.
