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We are a turn-key operation offering licensed Engineering, certified and experienced builders, installation specialists, in-house experienced service and repair personnel, and more. A 'one-stop-shop' supplying all your greenhouse and mechanical needs.

Langendoen Mechanical Inc. (LMI), which started in 1978 as Andy Langendoen Greenhouse Mechanical, is a family-owned and operated mechanical contractor located in the Niagara Region. What had started as a small greenhouse mechanical company focused on the service and maintenance of pumps, pipes and boilers, has grown into a full service company including design, service, supply and install.

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