Brennan

Our HVAC installation services deliver energy-efficient heating and cooling systems tailored to your home's unique requirements. We specialize in furnaces, air conditioners, and heat pumps from trusted brands like Lennox and Carrier. Our NATE-certified technicians ensure proper system sizing and installation, maximizing comfort while minimizing energy costs. We offer free consultations to help homeowners select the optimal system for their needs and budget.

From routine maintenance to emergency plumbing repairs, our licensed plumbers handle all aspects of residential plumbing systems. We offer water heater installation and repair, drain cleaning, leak detection, and fixture upgrades. Our team prioritizes quick response times and transparent pricing, with same-day service available for urgent situations. We guarantee our workmanship with comprehensive warranties.

Our electrical services include panel upgrades, generator installation, EV charging stations, and safety inspections. We provide both standby and portable generators to protect against power outages. Our certified electricians follow strict safety protocols for all residential electrical work, including whole-home surge protection and hot tub wiring installations across Western Washington.

We improve indoor air quality through specialized solutions including air purification systems, duct sealing, and humidity control. Our offerings include Aeroseal duct sealing technology, HEPA filtration systems, and whole-house air cleaners with UV light sanitization. These solutions specifically benefit households with allergy sufferers or respiratory conditions by reducing airborne contaminants.

Our maintenance membership program ensures year-round system reliability through regular professional servicing. Members receive priority scheduling for emergency repairs, exclusive discounts, and extended warranties. Annual tune-ups for HVAC systems help prevent breakdowns, improve energy efficiency, and extend equipment lifespan through comprehensive cleaning and component inspections.

We provide full HVAC services including installation, repair, and maintenance for furnaces, air conditioners, heat pumps, and ductless systems in Western Washington.

Yes, we provide 24/7 emergency plumbing repair services for urgent issues like burst pipes, severe leaks, and water heater failures across Seattle.

We offer flexible financing programs, military/senior discounts, and accept major credit cards for HVAC system installations and upgrades.

Our solutions include air purifiers, duct sealing, humidity control systems, and whole-house ventilation to enhance indoor air quality in Seattle homes.

We serve all Western Washington communities including Seattle, Bellevue, Tacoma, Everett, and surrounding areas in King, Snohomish, and Pierce counties.

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.

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!

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.

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.

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.