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Phone: 618-258-9000
Fax: 618-258-9090
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Service & Repair
Service & Preventative Maintenance

Every member of our Service Division is indoctrinated with the motto to "Always spend a customer's money like it is their own". This philosophy insures we are only providing products and services actually needed. We also strive to present intelligent suggestions for upgrades and replacements to maximize system performance and efficiency.


Our ever growing Service Division now has 12 service technicians and a sales, engineering, and administrative support staff of three. The 150+ years of combined HVAC experience of our staff gives us the knowledge and skills to handle any problem with any type or size of mechanical system.

Our service technicians are licensed and certified to work in all municipalities in the greater Metro East area of Illinois and Missouri. Our commitment to provide our customers with timely and effective response to their problems includes a 24 hour 7 day a week schedule.

Building Solutions

Occupied buildings make upgrading or replacing equipment a difficult challenge. We focus our efforts on understanding our customers' business well enough to allow us to create a plan to make the needed upgrades or replacements with minimal interruption to their everyday activities.

We have the knowledge and technology to conduct energy studies and propose cost reducing options. The study information provided includes energy cost comparisons of existing system and proposed upgrades. This information can be very useful in evaluating the payback for system enhancements.

Building Solution project options include:

  • Tenant finish work: Reworking of existing HVAC system to accommodate new or expanded floor plans.
  • Equipment replacements: Replacing any aged equipment to insure reliability of service.
  • Building expansions: Additions to existing facilities.
  • Retrofits: Wholesale or partial replacement of existing systems with equipment of different design or capacity. Our capabilities in this area include complete Design/Build services.

Preventative Maintenance

GRP Mechanical Co., Inc. offers Preventative Maintenance agreements for all types of mechanical and refrigeration equipment including rooftop units, chillers, boilers, air handling units, cooling towers, refrigerators and freezers.

Each Preventative Maintenance Agreement is custom tailored to meet the budget and operating needs of the specific facility. All agreements include essential services to keep equipment operating efficiently and operational checks to identify potential problems before costly breakdowns occur.

Preventative Maintenance Agreement options include:

  • Preventative Maintenance Program: Guaranteed response time for any emergency service needs. Reduced labor rates and parts mark ups quoted and locked in annually. 30 day without reason cancelation policy.
  • Full Labor Program: Includes everything mentioned above and any labor required to make any repairs to covered equipment.
  • Full Service Program: Includes everything in both options above and all parts required to make any repairs to covered equipment. This program gives you a fixed monthly fee for equipment maintenance and repair with no surprises.