Decades of Experience

Your HVAC+R and Construction Experts

Started in 1984 as a one-man operation in West Monroe, LA, Mechanical Systems & Services has since grown to over 90 employees with a six-state footprint. Across industries and projects, MSS is your trusted provider of construction, commercial HVAC, and refrigeration solutions. We’ll work with you to design, build, and maintain your system for maximum comfort, efficiency, and performance. Since 2021, we’ve been proud to be a part of the Crete United team of partners.

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Regions Served

Founded in Louisiana, we’ve since expanded to work across a six-state footprint. We proudly offer HVAC and refrigeration services in Louisiana, Arkansas, Mississippi, Alabama, Texas, and Florida.

Why Choose Mechanical Systems & Services?

Whether we’re installing new equipment, designing construction projects, HVAC or refrigeration systems, or providing service and maintenance, our professionals will get the job done in a timely manner, working with you to meet deadlines and exceed expectations.

Construction

We offer expertise in design-build projects as well as negotiated projects, building comprehensive HVAC or refrigeration systems tailored to suit the project needs. From the ground up and the top down, MSS operates as a seamless part of the construction process.

Services

We specialize in HVAC+R and Construction services for a variety of customers, from individual properties to national accounts across Louisiana, Arkansas, Mississippi, Alabama, Texas, and Florida.

More resources. Better outcomes.

Mechanical Systems & Service is a part of Crete United, a national energy efficiency company that uses our Mechanical, Electrical, and Plumbing (MEP) expertise to improve communities. As part of the Crete United network, we deliver multi-service integrated solutions, a streamlined customer experience, and comprehensive energy efficiency solutions that increase uptime and reduce spend. Together, Crete United and Mechanical Systems & Services are focused on making the places where we live, work, and play better and more sustainable.