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Serving the Portland Metro & Surrounding Areas 503-849-9207

Tri-County is here for you.

Tri-County HVAC, Inc. services the greater Portland metro area.  It is locally owned and provides heating and air conditioning services to both commercial and residential clients. 

It has always been the mission of Tri-County HVAC, Inc. to provide the best customer service as we work to solve your heating and air conditioning issues by installing top-of-the-line products. 


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serving the entire Portland Oregon area.

The beginning: 1982….

Tri-County HVAC, Inc. started back in 1982 when my father opened the doors. After a number of years, he let the license go and went to work for a local heating company.

I started in the HVAC trade when I was a sophomore in high school and 20 years later opened the Tri-County Heating doors once again.

Learned HVAC from the ground up

I started by cleaning the shop and working summers for a local heating & A/C fabrication shop. I graduated from high school and continued my education at the Associated Builders and Contractors apprentice program.  After graduation, I continued to work hard, year after year, taking a variety of courses in the HVAC field along the way.

Over the years, I learned the importance of customer satisfaction, working hard to diagnose and repair what some shops tend to miss. We are often able to find problems with existing HVAC systems and solve problems in an efficient and economical way.

We create and value the relationship we have with our customers, in fact, 90% of our customers are repeat customers or referrals.  We take pride that we’re not just a contractor, but also an honest, fair and friendly resource others are happy to recommend. Feel free to check our A rating from the BBB.

– Dennis Mantei, Owner