McDonough Mechanical Service Company was established in 1976 by James L. McDonough. In 1983 a small group of investors with a combined 50 years experience in mechanical specialties and trades accquired the mechanical division and started McDonough Mechanical Services, Inc. Since then we have earned a renowned reputation for superior mechanical and HVAC services.
Today we're one of Northern Illinois' most successful mechanical contractors, employing skilled professionals who share the values and vision that makes us a leader in HVAC services. Our high standard of quality workmanship while ensuring a safe and healthy work environment is strictly adhered to. We follow an ongoing safety program defined by OSHA standards and employ OSHA safety certified and CPR certified personnel. Our technicians are union trained professionals guided by experienced managers. Coupled with expert designers, engineers, programmers and sales professionals, McDonough Mechanical Services, Inc. has become a powerful force in the HVAC industry.
McDonough Mechanical Services, Inc. is proud to be in association with:
What We Do
Products and Services
Blue Book Network Classifications
Our standard scope of services includes the following CSI Master Format™ code(s).
Commercial Construction Project Specializations
Associations & Memberships
LCCA (Lake County Contractors Assn.)
Mechanical Contractors Association of AmericaNational
Pipefitters Local 597
Plumbers & Pipefitters Local 501
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