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2210 Oliver Road
Thunder Bay, Ontario P7G 1P9
year of experience
Thunder Bay Insulations Ltd. since 1978

Ready for a more sustainable future

Growing up in the insulation, building industry gives us the experience and expertise to appreciate insulation practices of the past and strive for more energy efficient building, heating and cooling systems.

At Thunder Bay Insulations we are proud to provide and apply the latest and best techniques for installing insulations of all kinds.


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what we offer

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We work with integrity

Why Choose Thunder Bay Insulation?

We are Northwestern Ontario’s number one insulation service provider

Family Owned

The company began in 1978 with Mike Kohanski as president. Thunder Bay Insulations is presently owned by Sean Kohanski and Leah Kohanski, son and daughter of Mike and Violet Kohanski.

Friendly Service

For us, there are no bad questions and we will always treat you with respect. We will clean up after ourselves and are available during the project in case you have any concerns. 


We offer almost 50 years of experience in the insulating business. There is not much we haven’t seen or done when it comes to residential, commercial and industrial insulating jobs. 


Thunder Bay Insulations uses environmentally friendly insulation materials that are safe  for our employees and for you. We can also offer you advice on how to reduce your carbon footprint.

We can offer you a quote for your residential, commercial or industrial insulation project


Some of our work

Here are some projects we have worked on in the past

We provide estimates in Northwestern Ontario

Get In Touch With Us

We are available for on site consultations and provide our customers with a free no obligation estimate

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2210 Oliver Road Thunder Bay, Ontario P7G 1P9

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