Mercer Island

Cardinal Heating & Air – Professional HVAC Service in Mercer Island, WA

It only makes sense that Mercer Island is the most populated lake island in the United States with more than 25,000 inhabitants. It’s only a short drive away from bustling downtown Seattle, but still nestled in plenty of gorgeous nature. It is surrounded on all sides by Lake Washington and bordered by gorgeous mountains. The friendly people who live there are always worth the drive across the I90 bridge.

We always look forward to serving our neighbors in Mercer Island. We only offer the best in quality, affordability, and integrity to our Mercer Island residents. Since 1991, Cardinal Heating & Air has served the Mercer Island, WA area with trustworthiness and professionalism. If you are seeking HVAC services in Mercer Island, call Cardinal Heating & Air.

Our Services Include:

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* *For Service Customers Only. Valid for Appointments Scheduled within 7 days of Date of Contact.

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Call us to learn more about our services and products or to schedule an appointment.
24/7 Emergency Service425-827-9997

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Excellence in Service, Commitment to Satisfaction

Why Cardinal Heating & Air?

24/7 Emergency Service

We offer 24/7 emergency service throughout the Greater Seattle area, including Bellevue, Redmond, and Kirkland, ensuring you’re never left in the cold, no matter the time or day.

Community Service

Cardinal Heating & Air is dedicated to giving back to the communities we serve, actively participating in and supporting local events and charities in Seattle and Issaquah.

Committed to You & Your Comfort

Our commitment is to your comfort and satisfaction, making sure every service, whether in Bothell, Woodinville, or Shoreline, exceeds your expectations.

Professionally Trained Employees

Our team consists of professionally trained employees who bring expertise and a friendly attitude to every job, ensuring top-quality service throughout the Greater Seattle area.

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Experience the Cardinal Heating & Air Difference

Are you searching for a trustworthy and affordable HVAC company in Mercer Island, WA? Look no further. At Cardinal Heating & Air, we are committed to providing customer satisfaction with every service request. We will call before service to let you know we are on the way, arrive on time, and provide your Mercer Island home with special treatment as soon as we step inside. That means we wear shoe covers while we work and clean up any messes we make.

If you are seeking HVAC maintenance, repair, replacement, and more in and around Mercer Island, WA, call Cardinal Heating & Air today! One of our friendly representatives is ready to schedule your service.

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425-827-9997

TESTIMONIALS

What Our Clients Say

We have a 100+ year old Craftsman house and wanted to upgrade to a heat pump system. We had multiple bids which were unsettlingly all very different. Jonas from Cardinal was the most thorough and ended up recommending a hybrid system very different from the others. (Before I mention the quality of the work, I say want to say the system works extraordinarily well - the decision the accept the limitation of the 100 year old ducting system and work with it was brilliant.) We had the new heat pump system installed in July 2024 with a new ducted system for the second floor. The Cardinal installation team really did an excellent job. They were also very professional, and thoughtfully walked us through some of the installation issues and decisions we needed to make . Their daily cleanup was excellent. We are continually surprised by how well the systems works. We mostly wanted to use the system for the summers, particularly for the smoke events and weren't sure the cooling would be well distributed. But thanks to the suggestion by Josh that we wire up a switch to use the old gas furnace's fan in the summer, the cool air is distributed pretty well. And the heating effect is really wonderful. We had a post installation problem with leaking condensation causing some ceiling damage. Cardinal made good on the installation paying for the repairs continuing their excellent service. Cardinal is one of the best contractors we ever worked with - I can't recommend them highly enough!
Patrick Long
I’m pleasant, precise, and diligent.
Elena Steele
Turned out to be a complicated project to add heat pump. Our electric service was just adequate for the installation. The Cardinal team was great all around from Jonas and Dylan getting things set up to Luis, Luis, Terry and Drew on the install and fine tuning. Would highly recommend.
Charlie Hafenbrack
The technician was fast, friendly and professional .
Charles Herring
Cardinal was professional from the start - meeting with the consultant to determine our needs - installation with guys courteous and respectful of our home using all means necessary to assure cleanliness as well as quality installation - immediate follow-up with our warranty and maintenance suggestions. We are extremely pleased with this new cooling and heating system and highly recommend Cardinal - a first class business.
Linda B
Cardinal has been taking care of my furnace and AC for a number of years. They are easy to communicate with, on time, and do great work.
Nora Wright