Rainbow Mechanical Services Ltd. has been servicing the industry since 1973, serving all of Southern Ontario from London to Ottawa. We have at present over 30 service vehicles on the road. Diversity combined with first class workmanship and "Customer First" attitude, remain the backbone of Rainbow Mechanical's reputation. Rainbow Mechanical takes pride in the technical depth and experience to service all Hydronic Heating, Chilled Water, Plumbing and HVAC Systems. Our dedication and commitment for excellent customer service has kept our customers loyal and satisfied, we take pride in the business relationships we have established.