Stay Updated on the Latest News From GRP|WEGMAN

There's always something exciting going on!

Discover our latest hires, project milestones, awards, and new initiatives as we continue to innovate and lead in facility and energy solutions. Stay tuned for exciting updates from our team!

Where Excellence is Standard

At GRP|WEGMAN, we don’t just build—we revolutionize infrastructure and power efficiencies. Partner with us for a project built to last, and experience the GRP|WEGMAN way—where excellence is standard.

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.

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.

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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

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