Stop Worrying About Your HVAC/R & Plumbing Service

GRP|WEGMAN has you covered!

As a business or organization leader, you already have a lot on your plate. Maintaining operational efficiency means you need a trusted partner to handle HVAC/R installation, service, and preventative maintenance. We understand the importance of getting the job done right the first time. Whether it’s a new system installation or regular maintenance, our HVAC/R and plumbing teams deliver excellence on every call—so you can focus on running on what's truly important.

Highly Qualified & Trained Workforce

We pride ourselves on our teams of highly qualified HVAC/R technicians and plumbers. Our experts are trained to handle a variety of systems and problems, whether it’s a complex mechanical installation or routine service. No two service calls are the same, and our technicians are prepared to offer efficient, cost-effective solutions every time.

Our teams don't just address the symptoms; we focus on long-term solutions that enhance the performance and longevity of your systems.

Types of equipment we service

  • Rooftop Units
  • Chillers & Boilers
  • Air Handling Units
  • Cooling Towers
  • Variable Refrigerant Flow Systems (VRF)
  • Cold Storage Equipment & Supermarket Equipment
  • Backflow Certifications

Our Services at a Glance

HVAC/R Services

  • Installation
    We design and install systems tailored to your facility’s needs, ensuring seamless integration with your operations.
  • Preventative Maintenance
    Regular inspections and servicing to keep your HVAC and refrigeration systems operating at peak performance and efficiency.
  • Chiller & Boiler Services
    Comprehensive overhaul, repair, and maintenance for chillers, boilers, and air handling units.
  • Ammonia Refrigeration
    Specialized services for ammonia-based systems, ensuring safety and efficiency.
  • Retrofits & Commissioning
    Upgrade and replace old systems with energy-efficient solutions.

Plumbing Services

  • Preventive Maintenance Programs
    Scheduled maintenance to prevent costly repairs and ensure system longevity.
  • Mechanical Design Build
    Custom solutions for new installations or upgrades, with a focus on durability and efficiency.
  • Service Plumbing
    From leaky faucets to water heater replacements, we handle all types of plumbing repairs and maintenance.

What Sets Us Apart

1

No Second Trips, No Delays

At GRP|WEGMAN, we pride ourselves on getting the job done right the first time. With our 8-hour guaranteed response time for preventative maintenance customers and a commitment to delivering high-quality service, we ensure your HVAC/R system is back up and running quickly. Our goal is to minimize downtime, avoid second trips, and provide solutions that are right the first time.

2

Onsite HVAC Training and Teaching Center

We believe in empowering our technicians and clients. Our onsite, hands-on HVAC training center provides our team with the skills and knowledge they need to maintain your systems. With real-world scenarios and practical instruction, our team is well-equipped to handle day-to-day operations. From installation to preventative maintenance and retrofits, we provide end-to-end HVAC/R and plumbing solutions tailored to your facility's specific needs.

Building Solutions Backed by Decades of Experience

With years of combined experience, our HVAC/R and plumbing division is equipped to handle everything from minor repairs to complex system installations. We don’t just offer service—we provide long-term value by identifying cost-effective solutions that save you money and improve performance. Whether you need a brand-new HVAC installation, ongoing maintenance, or plumbing services, we are ready to serve. Our team of experts is committed to delivering the highest-quality service with no second trips and guaranteed satisfaction.

There is Something Different about us

Most companies trip all over themselves to tell you how great they are. We COULD do that...BUT we thought it would be better to let some other people do the talking for us!

What are you waiting for?

Where we do our best work

Renewable Energy

Our expert engineers, project managers, and technicians are prepared to deliver tailor-made solar projects from concept to completion, ensuring a seamless, efficient transition to renewable energy for you.

Design/Build

We manage both the design and construction phases of your project, streamlining communication, reducing costs, and ensuring a cohesive, efficient process from concept to completion.

Energy Performance

GRP|WEGMAN is an Innovative Facility & Energy Solutions company specializing in design build, energy and efficient renovations for any type of government, K-12 and post secondary school building.

Facility Services

We provide preventative maintenance for industrial and commercial buildings, keeping them operating at top capacity. Whether it’s Electric, Plumbing or HVAC/R needs, we look at the big picture, solve your problem at its core and offer preventative care.

Infrastructure/Water

Explore 100+ integrations that make your day-to-day workflow more efficient and familiar. Plus, our extensive developer tools.

Industrial

Our team is built to handle complex piping systems, high pressure & temperature vessels, and associated industrial equipment in a variety of capacities.

Where we do our best work

Renewable Energy

Our expert engineers, project managers, and technicians are prepared to deliver tailor-made solar projects from concept to completion, ensuring a seamless, efficient transition to renewable energy for you.

Design/Build

We manage both the design and construction phases of your project, streamlining communication, reducing costs, and ensuring a cohesive, efficient process from concept to completion.

Facility & Energy Performance

We are an Innovative Facility & Energy Solutions company specializing in design build, energy-efficient renovations for any type of government, school, college, university, non-profit, commercial or industrial building.

Facility Services

We provide preventative maintenance for industrial and commercial buildings, keeping them operating at top capacity. Whether it’s Electric, Plumbing or HVAC/R needs, we look at the big picture, solve your problem at its core and offer preventative care.

Water/WasteWater/
Infrastructure

We deliver comprehensive water, wastewater, and infrastructure solutions focused on reducing water loss, optimizing energy use, and improving system performance. From advanced SCADA systems and energy-efficient technologies to accurate metering and methane capture for renewable energy, we provide sustainable, cost-effective services that enhance operational efficiency and ensure long-term infrastructure reliability.

Industrial

Our team is built to handle complex piping systems, high pressure & temperature vessels, electrical systems, control systems, and other  industrial equipment in a variety of applications.

Want more info?

Reach out to us!

Fill out this form and someone from our team will get back with you shortly!

Thank you! Your submission has been received!
Oops! Something went wrong while submitting the form.

Illinois

1 Mechanical Dr.
Bethalto, IL 62010

618-258-9000

Missouri

4240 Duncan Ave.
Suite 200
St. Louis, MO 63110

618-258-9000

Michigan

418 N Main St.
2nd Floor
Royal Oak, MI 48067

248-330-7908

Ohio

18 E William St.
Delaware, OH 43015

614-233-1289

South Carolina

934 Old Clemson Highway
Seneca, SC 29464

864-276-7315

Indiana

38 W Main St.
Carmel, IN 46032

317-377-6080

All Content Copyright © 2024
GRP|WEGMAN