McDonough Mechanical Services, Inc.

With decades of experience serving the greater Chicago area, this trusted contractor specializes in professional HVAC solutions and mechanical services designed for long-lasting performance. Their mission is to deliver systems that combine efficiency, durability, and cost savings while meeting the unique needs of every client.

One of their signature offerings is the design-build service, which covers the entire process from planning and engineering to installation and system start-up. This integrated approach ensures customized results that align with client requirements and provide maximum operational efficiency. For existing facilities, their expert retrofit services extend the life of older systems while upgrading them with modern technology to improve reliability and performance.

A key area of expertise lies in the installation and maintenance of boilers and chillers, which are critical for temperature regulation in commercial, industrial, and institutional spaces. Their certified technicians are known for precise diagnostics, preventative maintenance, and efficient repair solutions, helping businesses avoid downtime and maintain a safe environment.

The company also supports specialized projects, including process piping and advanced temperature control systems, providing safe and efficient mechanical solutions for facilities with complex demands. Clients benefit not only from high-quality equipment but also from ongoing maintenance programs and 24/7 emergency service, ensuring continuous support when it’s needed most.

Recognized for professionalism, innovation, and customer care, this team has built a strong reputation as a leader in quality HVAC services. Their combination of technical knowledge, hands-on experience, and dedication to client satisfaction makes them a preferred partner for organizations seeking dependable heating, cooling, and mechanical solutions.