SERV-ALL Mechanical Services Ltd. has been in the Building Automation industry for over 42 years. Starting out, our primary f ... ocus was HVAC installation, maintenance and service. The experience we gained in managing these mechanical systems, provided us with new opportunities that lead to expand to Building Automation Systems (BAS) with Reliable Controls® and a new direction for our company. Our relationship with Reliable Controls® has spanned well over 25 years and we have become one of the top certified dealers in the world. Over the past 40 plus years, we have been proud contributors to projects throughout Alberta in the commercial, institutional and industrial sectors providing Building Automation Systems, Preventative Maintenance Programs and HVAC services. read more