WE’RE OPEN! Because we are considered an essential service, we are open and ready to serve you. Our technicians are closely monitored and practice the highest safety protocols. The health and wellness of our employees and customers remains our top priority.

The Comfort Of
Your Family
Is Always Our Top Priority
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Our Technicians are
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About Legacy One Heating

Since 2016 Legacy One Heating has been providing quality HVAC services in the Puget Sound area.

Legacy One Heating is based out of Mukilteo, WA is your best choice for Air Conditioning, Heating and Indoor Air Quality products and services in Snohomish, Seattle, Bellevue and Surrounding areas. Legacy One Heating is your trusted local HVAC contractor, we take Heating and Cooling seriously, and offer our customers the benefit of extensive HVAC experience. This means we make the right recommendations for your specific needs with a “’No Pressure” or ‘Salesman’ feel. Our troubleshooting skills are unmatched, which saves you time and money on needed maintenance and repairs. 

Our Services

Air Conditioning

Contact Us Today For Air Conditioning Services In Mukilteo, Snohomish, Seattle, Bellevue, WA and surrounding Areas

Heating

Contact Us Today For Heating Services In Mukilteo, Snohomish, Seattle, Bellevue, WA and surrounding Areas

Water Heater

Contact Us Today For Water Heater Services In Mukilteo, Snohomish, Seattle, Bellevue, WA and surrounding Areas

Ductless

Contact Us Today For Ductless Services In Mukilteo, Snohomish, Seattle, Bellevue, WA and surrounding Areas

Who We Serve

Residential HVAC

Residential

Check Out Our Residential HVAC Page For More

Commercial HVAC

Commercial

Contact Us For More Information On Commercial HVAC

What Our Client Say

Susan R.

We just had a new furnace installed by Karl from Legacy One. From the initial bid to the final install everything went very smoothly. He …

Yasemin T.

My heater was acting up and I was searching for a good company on yelp.   Many companies were closed or were not available.  Karl …

Lee N.

I found Karl by the YELP reviews, I’m a property manager and he’s done an amazing job for me at every home I’ve sent him …

Jeannie C.

Legacy One has been a wonderful company for us! Eric came in to fix an old igniter in our fireplace. Not only did he do …

Pam S.

Had Legacy One Heating come out to service/repair the furnace. Eric was great. Very personable and knowledgeable. Explained the basics of how it works and …

Tom H.

Friendly, professional, competent, competitive, great service.

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