Business Details
39 Years
experience
Emergency
services
Your Trusted Partner for HVAC Solutions in Seattle
Since 1987, Brennan Heating, Air Conditioning, Plumbing Heating, Air Conditioning, Plumbing, and Electrical has served Western Washington with dependable home comfort solutions. Our team of certified technicians brings decades of combined experience in heating, cooling, plumbing, electrical, and air quality services, prioritizing safety, precision, and customer satisfaction. We specialize in energy-efficient upgrades, including Lennox systems, tankless water heaters, and smart home technologies, ensuring long-term savings and comfort. Our commitment to transparency includes free consultations, upfront pricing, and 24/7 emergency support, backed by comprehensive warranties and flexible financing. With an A+ BBB rating and 13 Angie's List Super Service Awards, we uphold values of honesty, integrity, and community trust.Our technicians undergo rigorous safety training, and we maintain strict protocols to protect your home during every service. From routine maintenance to complex installations, we deliver tailored solutions that align with your budget and lifestyle. Our local expertise spans Seattle, Bellevue, Kirkland, Renton, and beyond, ensuring personalized service for every client. We pride ourselves on clear communication, timely arrivals, and post-service follow-ups to guarantee lasting satisfaction. As a family-owned business, we treat every home as if it were our own, combining innovation with time-tested reliability.
Services
Heating Installation
AC Repair
Electrical Panels
Plumbing Services
Air Duct Cleaning
Generator Installation
Water Heater Repair
Indoor Air Quality
Maintenance Membership
Energy Consultations
Details
- Year established: 1987
Highlights and features
- We offer 24/7 emergency services with same-day and weekend appointments.
- Our NATE-certified technicians provide free energy consultations and transparent pricing.
- We guarantee workmanship with comprehensive warranties on installations and repairs.
- Flexible financing options available for approved credit applicants.
- Award-winning service with 13 Angie's List Super Service Awards and an A+ BBB rating.
What people say
Detail-oriented technicians
Same-day service available
Clear pricing communication
Professional and courteous staff
Thorough system explanations
Services
Heating Installation
Our heating installation service ensures reliable warmth for Seattle winters. We specialize in high-efficiency furnaces, heat pumps, and boilers, tailored to your home's needs. Our certified technicians handle every step, from system selection to seamless installation, with free energy consultations and financing options. Backed by factory warranties and a satisfaction guarantee, we prioritize energy savings and long-term comfort for homeowners across Western Washington.
AC Repair
Emergency AC repair services address refrigerant leaks, electrical issues, and component failures promptly. Our NATE-certified technicians diagnose problems quickly, using genuine parts for lasting fixes. We service all brands and offer 24/7 support to restore comfort during summer heatwaves. With upfront pricing and a focus on safety, we ensure efficient cooling systems that reduce energy costs and prevent future breakdowns in Western Washington homes.
Plumbing Services
From leak detection to water heater installations, our plumbing experts handle residential needs with precision. We offer drain cleaning, fixture upgrades, and emergency leak repairs using advanced tools like video inspections. Our transparent pricing includes free estimates, and we guarantee workmanship on all installations. With same-day service availability, we minimize water damage risks and ensure code-compliant solutions for Seattle-area homeowners.
Electrical Panels
We provide electrical panel upgrades, EV charger installations, and surge protection systems to enhance home safety. Our licensed electricians follow NEC standards for wiring and breaker replacements, reducing fire hazards from outdated systems. Services include standby generator installations for uninterrupted power during outages. With free consultations and financing options, we deliver reliable electrical solutions tailored to modern energy demands in Western Washington.
Air Duct Cleaning
Professional air duct cleaning improves indoor air quality by removing dust, allergens, and contaminants. Our technicians use HEPA-filtered equipment to clean ductwork, registers, and HVAC components thoroughly. Recommended every 3-5 years, this service enhances system efficiency and reduces respiratory irritants. We offer discounts when combined with furnace installations, ensuring cleaner air and lower energy bills for Seattle homeowners.
Questions
What HVAC services does Brennan Heating, Air Conditioning, Plumbing Heating, Air Conditioning, Plumbing, and Electrical offer?
We provide heating, cooling, ductless systems, air quality solutions, and 24/7 emergency repairs across Western Washington.
Do you offer financing options?
Yes, we have flexible financing programs available for approved credit applicants on major installations.
Are emergency services available after hours?
Our team offers 24/7 emergency support with same-day and weekend appointment options for urgent needs.
What areas do you service?
We serve Seattle, Bellevue, Kirkland, Renton, Federal Way, and surrounding communities in Western Washington.
How can I schedule an appointment?
Call us at 206-222-7674 or book online for free energy consultations and service appointments.
What certifications do your technicians hold?
Our team includes NATE-certified HVAC technicians, licensed electricians, and plumbing specialists with ongoing training.
Videos
Reviews (5)
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.
