Air Conditioning & Heating In Mukilteo,WA


HVAC Installations, Repairs & Service Maintenance

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

As your Heating & Air Conditioning installation contractor, we offer tried and true products from leading manufacturers that are reliable, cost effective and efficient. We're experts at enhancing your indoor comfort control, and we know that once you use Legacy One Heating, Inc, you'll wonder how you got by without us!

Call us today at (425) 374-7052 for Heating & Air Conditioning repair in Seattle, Bellevue & Surrounding areas.


Maintenance Plan




From winter's chill through the dog days of summer, our primary goal at Legacy One Heating, Inc is to keep your home comfortable for you and your family.

But, that's just the beginning. We also offer you peace of mind, ensuring your equipment operates safely. We help you save money on your fuel bills. And, we help deliver relief to those with allergies and many others concerned with the quality of the air they breathe.

This site is specifically designed to help you become an informed consumer when it comes to your home's heating and cooling systems. Go ahead, explore. The pull-down menus make it easy. Not only will you learn how these systems work, but also how to shop smart and protect your investment. If you're not sure where to find help with a specific question, try our site's Search Engine. And, don’t miss the 'Answers and Information' section on our menu to learn about your home's mechanical systems and simple things you can do to save money and get the most from them.

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 was always quick to respond to all my questions and his answers made sense. His price was very fair and they worked around our schedule. I know we'll use Legacy One for any future heating needs!"

Honeywell Logo.jpg
Bradford White Logo w_Tanks.png
American Standard Logo.png
Coleman Logo.png
Navien Logo.jpeg



  • Yelp Social Icon
  • Facebook Social Icon
  • angies-list-1-250x272
  • Google +

© 2019 by Legacy One Heating, Inc. All Rights Reserved

Tel. (425) 374-7052

4463 Russell Rd #103, 
Mukilteo, WA 98275

Monday - Friday  7:00 am - 5:00 pm

Saturday - Closed 

Sunday - Closed