Black & McDonald is an integrated, multi-trade prime contractor serving government, institutions, industry, and commerce across Canada, the US, and overseas.

Brewer-Garrett provides award-winning facility solutions with commercial, industrial, governmental, and educational HVAC, Design-Build plans, Integrated Facility Services and numerous energy programs. Their commitment to sustainable initiatives is made possible by their passion for advanced technologies and a promise to provide long-lasting and impactful solutions to customers.

ENTEC offers top-quality commercial building solutions with customer service to match. They utilize cutting-edge technologies in energy control, retro-commissioning, performance analytics, chiller optimization, and more. They strive to not only help customers to invest in their businesses, but also to form valuable partnerships based on quality and trust.

Building Excellence In The Heartland Since 1946. From construction of the largest new hospitals in the Midwest to the smallest industrial processes, Helm Group focuses on safety, quality, productivity and efficiency. Our project teams’ engineering, planning and construction innovation and our exemplary safety record allow us to excel while providing fair costs to our customers. Our commitment to leveraging state-of-the-art technology for the benefit of owners and project partners is unmatched.

Founded in 1984, Jake Marshall Service is a full service mechanical provider serving the Alabama, Georgia and Tennessee markets, specializing in preventive maintenance programs, automation and installation.

MacLellan HVAC & Mechanical provides a unique service to our market segment by institutionalizing a culture or Operational Excellence focusing on Safety, Continuous Improvement and a commitment to People. It is literally ‘the air we breath’.

Specializing in:
• Planned maintenance programs with factory trained service technicians
• Routine and emergent service work
• Mechanical equipment retrofit and replacements
• HVAC system installation projects
• Development and use of innovative systems and practices

Areas of Service:
• AL, TN, IN, MI, I-65 corridor

We provide a complete range of commercial services including the design and installation of new equipment, retrofits of existing systems, mechanical plumbing systems, sheet metal fabrication, direct digital controls, comprehensive maintenance programs and emergency service.

We combine the best in building automation, HVAC equipment, mechanical service, security solutions and parts to provide a simple solution for maximum building performance and peace of mind.

Building Technology Pros – From project planning through the life cycle of your building, LONG delivers a wider variety of building technology and ongoing support than any other provider in the Western U.S.

When you choose Lor-Mar Holdings to service, install or retrofit your mechanical systems we guarantee that it will be done right, on time and to “your” satisfaction. For all your HVAC-R needs, Lor-Mar Holdings will create peace of mind to ensure your business runs smoothly.