With the increasing complexity of building technologies and construction methods and growing Government regulations, a greater demand for professional caliber contractors is evident. People are needed who can accept responsibility, control the cost and the quality of services they perform.

By requesting an ORAC and UA Local 787 member to perform the work directly, the owner, consultant, specifier or general contractor will gain true and long-lasting value and Industry expertise.


  • Access to a network of over 100 like-minded HVAC contractors
  • Attendance and voting rights at the ORAC Annual General Meeting
  • Attendance at all social/networking events
  • Access to ORAC’s technical resources including TSSA pre-approved P-drawings, brazing procedures and testing facilities
  • Intimate access to ORAC associate members and suppliers
  • Attendance at all training/educational events
  • Eligible to become a member of the ORAC board
  • Industry exposure to potential clients via ORAC’s website

Together, these benefits offer financial savings which equate to thousands of dollars for an average company.

If you are a UA Local 787 member complete your application today!


Our Contractors

Absolute Alliance HVAC Solutions Absolute Alliance HVAC Solutions provides HVACR services in installation, maintenance and service in the Toronto area.
Ainsworth Inc. Based in Toronto, Ainsworth operates across Canada and is a leading multi-trade company that offers technical trade services like HVAC, mechanical, electrical, data cabling, and building and industrial automation.
Airco Ltd. Airco Ltd. specializes in refrigeration, HVAC and related services across a variety of sectors in the Sudbury, Ontario area.
Ambient Mechanical Ltd Since 1982 Ambient Mechanical Ltd has been taking care of all our clients' HVAC needs in commercial offices, industrial, institutional and multi-residential buildings.
Applied Systems Technologies Inc. Applied Systems Technologies Inc. provides a variety of HVACR services for commercial properties in the GTA.
Art Blake Refrigeration Limited Operating out of London, Ontario, Art Blake Refrigeration Ltd. offers HVACR services including installations, maintenance, emergency services and equipment audits.
B.I.C. Mechanical Ltd. Commercial/Industrial Refrigeration, Air Conditioning and Heating Service and Installation.
Beebe Mechanical Systems Ltd. A family-owned business since 1946, Beebe Mechanical Systems Ltd, located in Thunder Bay, offers installation and repair services for air conditioning, heating and mechanical systems.
Berg Chilling Systems Inc. Berg Chilling Systems designs and manufactures industrial thermal process control systems for a wide range of applications using both natural and HFC refrigerants.
Bering Mechanical Ltd. Bering Mechanical Ltd. specializes in design/build and lump sum projects for new construction, tenant work, renovations and retrofit of commercial and industrial facilities.
BGIS BGIS is specializes in facilities management, project delivery, professional, workplace solutions and real estate management services.
Black & McDonald Black & McDonald is an integrated, multi-trade prime contractor serving government, institutions, industry and commerce across Canada, the US and overseas.
BML Multi Trades Group Ltd. 519-756-4150
Boydaire Ltd. Boydaire is a heating contractor located in Ajax, Ontario.
Buhler Mechanical Service Ltd. Industrial, commercial and residential refrigeration, air conditioning, heating, and sheet metal. Sales, serviced and installation.
Canem Systems Canem Systems uses the latest technologies to deliver projects on time with a level of excellence you can trust. You can rely on us as your contractor because we’ve been putting relationships first for nearly 60 years.
Carmichael Engineering Ltd. Carmichael - experts in thermal energy systems.
Carrier Canada Ltd Carrier provides home comfort solutions.
Chadair Systems Inc.
CIMCO CIMCO designs, manufactures, installs and services high-quality, cost-efficient industrial, process cooling and recreational refrigeration systems.
Circa Refrigeration Inc. Commercial/Industrial Refrigeration & HVAC service and installation
Climatech Inc. Climatech is a service and maintenance company keeping customers comfortable since 1985.
Clow Darling Limited Commercial, Industrial, Refrigeration, Air Conditioning, Plumbing, Heating service and installation.
Complete Comfort Niagara Inc. Complete Comfort Niagara Inc. has earned the reputation among its customers, as a leading Heating, Ventilation, Air Conditioning & Refrigeration Contractor in the Niagara Region.
Conestogo Mechanical Inc. We provide 24hr/7day service in HVAC, serving Industrial, Commercial, Institutional and Multi Residential. We employ over 20 highly trained professionals.
Contrast Heating & Air Conditioning Ltd. 416-223-8552
Cool Check Commercial HVAC Contractor of Choice
Coolbreeze We understand that the management of your HVAC systems is critical to your business operations and to that end Coolbreeze employs only dedicated, experienced and fully licensed HVAC technicians.
Coolmark Mechanical Coolmark Mechanical Ltd is based in Woodbridge in the GTA (Greater Toronto Area).905-265-9620
Coral Canada Wide Coral Canada Wide Is a well-established, privately owned company with a proven track record of providing professional HVAC-R Services since 1992.
Core One Mechanical Group Inc. Core One Mechanical Group Inc. is your single-source Geothermal and HVAC solution. We can solve your geothermal, HVAC, maintenance, and equipment repair issues in your commercial, multi-residential and industrial properties.
Cyber Air Systems Inc. Commercial/Industrial refrigeration, air conditioning and heating service and installation, chiller installation and service, and certified brazing.905-569-8040
Dael Thermal With over 40 years of experience, Dael Thermal provides a wide variety of HVAC/R solutions to Commercial and Industrial clients. Along with meeting our customers’ needs in the HVAC/R area, Dael Thermal also provides unique and value added process combustion solutions for any and all manufacturing
Daikin Applied Canada Inc. We believe your air can be doing more. Every day, we aim to create better outcomes for our customers, so you can breathe easier.
DCS Innovative HVAC-R Solutions Inc. Service and installation of industrial, institutional and commercial refrigeration, air conditioning, and heating systems.
Demand Air Systems Ltd. Demand Air Systems has been designing, installing, servicing and maintaining Air Conditioning/Heating Systems since 1978. Our many years of experience have allowed us to service our customers with the expertise necessary to meet their HVAC requirements.
Dilfo HVAC Services Commercial, industrial and institutional heating, air conditioning, ventilation and refrigeration. We provide specialty equipment, maintenance, service and construction.
DonAir Heating & Air Conditioning Service Ltd. DonAir is an established family owned company in the HVAC business for over 27 years, installing and servicing heating, ventilation and air-conditioning systems for commercial and industrial customers in the GTA (Greater Toronto Area).
Drennan Refrigeration Inc. Industrial Refrigeration Contractors/Refrigeration Design Build Engineers/Industrial Refrigeration Supplies.
Dunlis Mechanical Services Ltd. Focused on commercial/industrial refrigeration, air conditioning, heating preventative maintenance/repair. Design/build/installation of sheet metal.
DX Systems Solutions Inc Based in the GTA, DX Systems Solutions Inc. is a Mechanical, HVAC/R contractor offering high-end trade services for critical environment, commercial, industrial & institutional clientele.
E.S. Fox Limited E.S. Fox Limited provides service oriented, value added, multi-trade solutions on all your ICI and energy projects. We can manage your job from start to finish.
Environmental Systems Corporation Environmental Systems Corporation's specialties include turn key construction of complete Cleanroom Projects, and building custom HVAC Solutions, which is part of their Critical Environments Division.
Fahrhall Mechanical Contractors Limited Provide reliable heating, cooling, plumbing and air quality service and installation to residential, commercial and industrial customers in the Windsor-Essex-Kent Counties. Top brand equipment, professional installation, and service in the heating and cooling industry.
FL Mechanical FL Mechanical is an HVAC service and installation company, also with extensive experience in paint spray
General Air Systems Inc. Mechanical and Commercial HVAC in Toronto. We specialize in High Rise Mechanical including water treatment and controls.
Gordon Wright Electric Limited Founded in 1930, Gordon Wright Electric Limited has earned a reputation of providing high quality products and installations with outstanding customer service throughout the Niagara Region and the Golden Horseshoe. In addition to our construction, design-build, and equipment installation services, our skilled servicemen can also perform preventative maintenance, service and repairs on your equipment.
Grayco Air Air Conditioning/Refrigeration/Heating/Ventilation/Pneumatics/Electrical.
Haller Mechanical Contractors Inc. Haller Mechanical Contractors Inc. is a full service Mechanical Contractor, specializing in Plumbing, Heating, Cooling, Refrigeration, and Sheet Metal. Providing licensed skilled trades to the Industrial, Commercial and Institutional markets in Windsor-Essex-Chatham-Kent-Lambton Counties with professional, repair, maintenance, build and installation services. Offering 24/7/365 service.
Heco Limited Heco Limited has now had over 20 years of success in the industrial and commercial refrigeration, cooling and heating industry.
Honeywell Honeywell is building a smarter, safer, and more sustainable world. That’s the Power of Connected. That’s the Power of Honeywell.
Hubbard Mechanical Incorporated Commercial/Industrial Refrigeration, Air Conditioning & Heating Service and Installation.807-473-7792
HVAC Dimensions Ltd. Commercial contractor specializing in VAV/VVT, computer rooms, BAS, Mitsubishi City Multi and Fujitsu ductless systems, VFD's, make-up air units, boilers and pneumatics.
J. Melvin & Associates Ltd. J. Melvin & Associates Ltd. offers the best in Commercial & Industrial HVAC installation, maintenance and service with over 30 years of experience in the industry.
J.L. Refrigeration Inc. Supermarket/Commercial Refrigeration & HVAC, Service and Installation.
Jade Logic Building Technologies Inc. Jade Logic brings decades of experience in Building Automation and uses the latest technology to give you full control over your building’s environmental systems, lighting and more. We also offer full service of all your mechanical and electrical systems with our experienced team of licensed technicians.
Johnson Controls Inc. A key part of your mission is to build and operate facilities that are safe and secure, whether your facility is designed for people, for products, or for both.
Kelson Service Inc. Specializing in optimizing each stage of the building lifecycle, Kelson provides innovative practical results for your engineering, commissioning, facility maintenance, emergency services and Energy needs.
Lancaster Group Inc. Fabrication, sheet metal, HVAC and mechanical services for industrial, commercial, institutional (ICI) and residential clients.
Lar-Mex Building Mechanical Systems Lar-Mex is a local, family operated, mechanical contracting firm with over 200 employees. We have been providing heating, ventilation and air conditioning (HVAC) services to the National Capital region since 1989. Our mission is to construct building mechanical systems with reliable mechanical services in order to earn our customers loyalty. Our team specializes in: Design and Construction of Building Mechanical Systems; Design and installation of Building Automation Systems; Design and installation of industrial boiler systems; 24-hour service for all of the above.
Laser Heating & A/C Inc. Laser provides 24 Hour service for all of your HVAC needs in the GTA and Southern Ontario. We service, repair, replace and provide energy optimization for all makes and models. Our experience includes restaurants, retail plazas, large commercial offices and industrial facilities.
Lekter Industrial Services Inc. Lekter Industrial Services Inc. operates in Southwestern Ontario.
M.A.S. Mechanical Ltd. M.A.S. Mechanical Ltd is an HVAC Contractor operating in the Toronto area.
M.C. Mechanical Services Inc. Commercial & Industrial HVAC/R Service, sales & installation of all major manufactures.
Magtech Mechanical Systems Magtech Mechanical Systems offers HVAC services including installation, retrofit, service and maintenance in the GTA.
Major Air Systems Ltd. Founded in 1983, Major Air Systems Ltd., based in Richmond Hill and operating in the GTA, is a HVAC company that focuses on proactive maintenance resulting in reduced failure rates and downtime. For over 35 years we have performed mechanical upgrades, overhauls and replacements.
Mapleridge Mechanical Contracting Inc. Mapleridge Mechanical clients’ satisfaction and confidence can be traced back to solid experience and continual improvement at Mapleridge Mechanical. Established in 1988, with our roots in serving the HVAC and Refrigeration industries, the company has since expanded to a full mechanical contractor.
Margell Mechanical Contractors Ltd.
Marshall Mechanical Inc.
Mayfair Systems
MDF Service
Mechanical Aire Services Ltd. (905) 629-4494
Metal-Air Mechanical Systems Ltd. Since 1985, our locally owned and operated company has continued to expand in order to meet the growing demands of the industries we serve. Metal-Air Mechanical Systems Ltd. is a Greater Sudbury based mechanical contracting company which services the industrial, commercial and institutional markets. As a multi-disciplined contractor, we offer a variety of services to our customers, such as: heating / ventilation / air conditioning / refrigeration, ammonia, sheet metal fabrication and installation, mine ventilation, plumbing and pipe fitting, electrical and building automation systems.
Mike Witherell Mechanical Ltd. Mike Witherell Mechanical offers services in refrigeration, heating, air conditioning, solar, electrical, testing and inspections.
Mitchell Refrigeration Limited
Modern Niagara Group of Companies Modern Niagara helps building owners, managers and general contractors meet the HVAC, mechanical, electrical and building control needs of their properties. We also offer building services that include proactive and emergency maintenance programs.
MSB Mechanical Ltd. MSB Mechanical Ltd offers various mechanical services in HVAC, Heating, Plumbing, and refrigeration. We range from large commercial mechanical construction projects, and installs, to various HVAC services requests and maintenances throughout the
MTI Mechanical Trade Industry Ltd. MTI Mechanical Trade Industries is based in Markham and provides any type of commercial or industrial heating, ventilation, air conditioning, plumbing, electrical, design/build construction management and mechanical construction in the GTA.
MultiTech Trades Corp Build, install & maintain mechanical systems such as HVAC, Plumbing, and Sheet Metal for Industrial, Commercial, Institutional and Biotech facilities
N.L. Clarke Service Ltd., cob Trane Service Agency Commercial/Industrial refrigeration, air conditioning, heating and controls service, sales and installation.
National Mechanical Air Ltd. National Mechanical Air Ltd. is a commercial HVACR company providing services across the GTA.416-991-8009
Neelands Group Limited Neelands Group CO2 refrigeration and cooling systems provide a high performing resilient solution. Let us show you that you can improve your bottom line while meeting your sustainability objectives.
Nelco Mechanical Limited Refrigeration, HVAC, Plumbing, Heating, Electrical and Service. Commercial/Industrial/Institutional in the ICI Sector.
Nexus Mechanical Group Inc.
Nortek Mechanical Services
Northern Air Environmental Technologies Inc. Since 1968 Northern Air has been a leading provider of design-build projects, and the continued care of buildings with our extensive maintenance programs. Serving the ICI & Multi-Res sectors.
Nortown Air Systems Commercial/Industrial Heating & Cooling, Service & Installation.
Ontario Heating & Air Conditioning Ltd. Commercial/Industrial - HVAC Preventative Maintenance and Inspections Programs; Building Service and Installation of Mechanical Systems, Controls and Building Automation.
OPUS Mechanical Services Ltd. Based in Vaughan, Ontario OPUS is a full service Mechanical Contractor specializing in Plumbing, Sheet Metal, Ventilation, Air Conditioning & Refrigeration skilled trade offerings in the Industrial, Commercial & Institutional
Pamar Mechanical Ltd. Pamar Mechanical Ltd. offers HVAC services in the GTA.416-720-6452
Penn Refrigeration Ltd. Since 1961 Penn Refrigeration has been selling, installing & servicing refrigeration, air conditioning, heating and ventilation equipment in St. Catharines, Ontario.
Polar Mechanical Polar Mechanical has been serving clients since 1976, proudly supplying, installing, and servicing heating, cooling and ventilation systems in the residential, commercial, institutional and industrial sectors in Thunder Bay and Northwestern Ontario.
Pro-Tech Mechanical Services Ltd.
Pure Mechanical Group Inc Pure Mechanical - commercial HVAC contractors in Oshawa, ON. Pure Mechanical provides commercial and industrial HVAC services across Oshawa, Pickering, Ajax, GTA ON.
R & R Mechanical Group Inc. R & R Mechanical Group Inc. specializes in refrigeration, heating, and cooling.519-465-1845
R.E. Corner Refrigeration
ReadAir Mechanical Services Ltd. Service excellence above all. Heating, ventilation, air conditioning, and refrigeration (HVAC/R) for the industrial, commercial and institutional sectors
Responsive Multi-Tech Services Commercial/industrial refrigeration, air conditioning and heating service and installation.
RHA Environmental Inc. RHA Environmental provides clients with prompt, reliable, service to many types of heating, air conditioning and refrigeration systems throughout the Barrie and Central Ontario region.
Robcan Mechanical Robcan Mechanical provides heating, ventilation and air conditioning services in the GTA to hundreds of clients with an emphasis on customer satisfaction.
Roberts Onsite Inc.
Romo Air Systems
Roper Controls Inc. Roper Controls is a union HVAC/R contractor with union refrigeration mechanics, gas fitters, electricians and pipe fitters. We have been providing exceptional service since 1989. RCI provides quality sales & service in all areas of the HVAC/R trade Canada wide.
Rosetown Central Refrigeration and A/C Commercial/Industrial/Institutional refrigeration, air-conditioning, heating, lab equipment – Service, Maintenance, Installation & Design
S & S Bolton Electric Inc.
S.I.G. Mechanical Services Limited
Seguin Morris Seguin Morris delivers top-quality electrical installation and maintenance services, at a competitive cost, for mid-sized public and private sector projects. We handle everything from electrical shutdowns, industrial hardware programming and control systems integration to engineering support and turnkey design-build
Sensible Heating & Air Conditioning Ltd.
Servocraft Limited ICI Sector / Electrical & Mechanical Contractors and Engineers
Snow's HVAC Services Sales and Service of Commercial and Industrial Heating, Ventilation, Air Conditioning and Refrigeration equipment.
Spectrum Mechanical Spectrum Mechanical is a leading provider of residential and commercial full mechanical services, specializing in retrofits and construction projects. Our technicians install and service sheet metal and duct work, plumbing piping, furnaces, central air conditioning systems, VRF systems, fireplaces, boilers, chillers, water heaters and more. With over 20 years of residential and commercial HVAC and Plumbing experience, let us show you how we can help.
Springbank Mechanical Systems Ltd. Ontario’s Premier Shopping Centre/Retail Specialist HVAC Contractor
Standard Mechanical Systems Ltd. Commercial Air Conditioning, Heating, Refrigeration & Energy Management Service & Installation. In business 44 years with 35 Offices/Depots across Canada
Superior Boiler Works & Welding Ltd. Superior Boiler Works & Welding Ltd. (“SBWW”) was founded in 1962 as a business specializing in the installation, service and repair of Boilers and Pressure Vessels. Over the past 55+ years, we have grown into one of our area’s largest General Contractors with divisions in HVAC/R, Mechanical, Electrical and Manufacturing that act as a team to create the successful company we are today. Our HVAC/R Division provides complete installation and service. SBWW provides quality design, installation and service for Heating, Ventilation, and Air Conditioning (HVAC) equipment in commercial and industrial markets and strives to maintain the highest level of design and engineering possible. Our service team provides preventative maintenance and 24/7 emergency Service repairs to customers who range from small commercial retail to large commercial and industrial plants. The SBWW Team is committed to delivering high quality products and services that satisfy our customers with whom we have established longstanding
Temp Air Control
Temp Wise Design and Maintenance Temp Wise Design and Maintenance specializes in commercial and industrial refrigeration, heating, air conditioning, ventilation, process heating and cooling, air auditing and balancing, gas services, and sensor calibration. We have over 50 years of combined experience and serve the Southwestern Ontario market.
The E.A. Group Engineering, Design Build & Service Contractors for Mission Critical Mechanical & Electrical Systems for the Data Centre Industry
The Plan Group
The State Group
Thermal Mechanical Systems Incorporated
Thermal Process Systems Inc. (Thermecs)
Trane Canada ULC Commercial HVAC Equipment, Earthwise Systems, Industrial Refrigeration, HVAC Service and Installation, Controls and Building Automation Services.
Trans Air Mechanical Ltd. Commercial/Industrial; Air Conditioning, Heating, Refrigeration, Humidification, Sales, Service, Installation.
Tri-Air Systems Commercial/Industrial heating, air contioning and refrigeration, service, maintenance and installation.905-470-2424
Weiss Service Associates Inc. 519-826-6955
Westaire Air Conditioning & Heating Ltd.
Xtra Mechanical Limited Commercial/Industrial Heating, Ventilation, Air conditioning & Controls Service and Installation
Yorktowne Air Inc 905-532-9699