About Us

Comfort & Craftmanship

The design and installation of your new heating system requires a high degree of skill and knowledge and our staff, with their 94 plus years of combined experience, has it. We understand your new heating system will be a part of your home for decades to come so it needs to be designed and installed correctly.

That’s why our mechanics and plumbers combine new technology with proven methods to create an installation process that’s second to none. The result is a dependable system you can count on to operate at peak efficiency while making your home more comfortable.

Our mechanics provide King County and Snohomish County with residential and commercial service from installing new multi-zone hydronic heat systems to repairing turn-of-the-century steam heat to maintaining boilers.

With customer service as our highest priority, our goal is to make working with us as stress-free as possible. Whether we’re making a quick repair or installing a new heating system, we go all out to deliver a better value than other companies.

Meet the Team

Mark Lee, Master and Commander
Mark Lee, a journeyman plumber and mechanic with 28 years of experience, has been with Carlson Mechanical from the beginning and its owner since 2005. He's passionate about hydronic heating, customer service, and the Minnesota Vikings.


Tim Carlson
Tim Carlson is the founder of Carlson Mechanical. A journeyman plumber with over 41 years of heating experience, he started the company in the 1990s to specialize in high-quality boiler and hot-water heating.

He now works at the company he started as a trouble-shooting and problem-solving savant.


Dennis Dietzel
Dennis is an excellent mechanic with over 31 years of experience working with boilers, hot-water heating systems, swimming pools and spas, and oil-fired equipment.

He shines at customer service and has been an important part of Carlson Mechanical since 2007.


James Dinnie
James joined Carlson Mechanical in October of 2015. He is a state-certified journeyman plumber and has 21 years of plumbing experience under his belt.

With a "can-do" attitude and strong emphasis on customer service, he’s become an integral member of the Carlson team.


Arik Lee
After completing his undergraduate studies at WSU, Arik has continued learning everything he can about the heating industry. With his background in finance and business, he's a natural fit!

His excellent customer service skills have been a valuable asset to our fast-growing family business ever since.


Sam Miller
Coming soon!


Colleen Becker
Coming soon!