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Servicing the community since 1937

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Clow Darling is the largest complete mechanical service contractor in Northwestern Ontario specializing in plumbing, heating, cooling, boilers and piping for the industrial, commercial, and residential markets. Our services also include a mobile air conditioning and heating department.

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Featured Project: Remote Communities

Commercial

Over the years Clow Darling has helped install extensive infrastructure in remote First Nations communities requiring expertise and the right equipment provide solutions in these areas.

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Featured Project: Heritage Home Restoration

Residential

For this project Clow Darling helped restore the beautiful, turn of the century character home on the corner of Catherine Street and Ridgeway Avenue in Thunder Bay.

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Clow Darling

4 days ago

Clow Darling
Today is #NationalHydrationDay, so use it as a reminder to stay hydrated and protect yourself during these hot summer days! And if tap water is your only option and it’s running a little unclear, it may be time to look into your water main. Give us a call for a free quote today! ... See MoreSee Less

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Clow Darling

4 days ago

Clow Darling
A huge thank you to Viessmann for coming by yesterday to showcase some of their products to our Boiler team! ... See MoreSee Less

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Clow Darling

3 weeks ago

Clow Darling

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