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Duncan's Air Conditioning & Heating Inc.

1319 Green Forest Ct. 

Suite 404

Winter Garden, Fl 34787



Mark reached a cross roads in his HVAC career. The opportunity presented itself in 2007  to follow his dreams and open his own ac company. In May 2008, in the height of the the most serious financial crisis since the Great Depression, Mark and his wife Rachel started Duncan's Air Conditioning. With 4 little ones, failure was and is not an option.

We are a family owned and operated business.


 Mark as well as his team of technicians are highly trained professionals in Service, Installation, & Maintenance of Commercial & Residential HVAC systems. 

Mark Duncan has been a service tech and installer in the industry since 1997. He is knowledgeable, experienced, & actively working in the field along side his team.  Mark and his team will advise you of  the products available and  give you a clear understanding of each product that fits your needs and budget. Once a product is agreed upon you can rest easy knowing from start to finish you will have nothing less than highly trained professionals installing and maintaining your system by a company you can rely on and build a lasting relationship with.