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 Few words about us.

G.W.B. is a family owned business serving London, St Thomas and  surrounding area since 2009. 

Owners Jeff Jewell and Mike Fuller reside in Union, Ontario and are both active in day to day business.

G.W.B. specializes in residential, commercial and industrial  installations for HVAC, furnaces, air conditioners, heat pumps and pool  heaters.

G.W.B. is a full service company; on call 24 hours.

Jeff and Mike are dedicated to quality workmanship and customer  satisfaction that will keep our loyal customers coming back and  recommending us to friends.

Contact us today to find out how we can help you with heating and air conditioner needs. We look forward to your call.

Service Standards

Solutions Now


 Whether you need a maintenance check or an emergency repair on a heating or cooling unit, we are available to handle  all of your all of your heating, cooling, and ventilation needs.  We will exceed your expectations by ensuring that you receive individualized service.   

Chosen by you


  We will work with you to find HVAC solutions that fit your heating and cooling needs and budget. We will provide you with a full consultation to explain all of your available options so that you can choose the system that’s right for your home or business.  



 We serve both residential and commercial clients and offer a variety of money-saving solutions. We combine our use of the highest quality parts and equipment, and our dedication to delivering  exceptional service to provide you with top quality service. Warranty included with all services.