Since 1987, Brennan Heating and Air Conditioning has served thousands of satisfied customers throughout the Puget Sound region. Our goal is to help you make your home more energy efficient - while saving you money. We offer a wide variety of home improvement products including furnaces, air conditioners, heat pumps, hydronic heating systems, indoor air quality products, gas logs and fireplace inserts, and gas water heaters.

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.

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Brennan Electric

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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.

Heating Installation

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Whether you need to repair, upgrade or purchase a brand new heating system, Brennan Heating installers provide and install the highest-quality heating systems for residential properties of any size in greater Seattle.

AC Installation

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Brennan Air Conditioning installations provide high quality central air for properties of any size in greater Seattle. Reliable, experienced, fully trained and qualified - our central air technicians will get you cool again in no time!

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