Heating, Cooling, Plumbing & Electrical for Metro East Homes

For more than 70 years, GRP|WEGMAN has kept the heat, air, and water running in schools, hospitals, factories, and city buildings across the Metro East. When those systems fail, people can’t learn, heal, or work, so we don’t cut corners.

Now we bring that same standard to your home. Union-trained techs, honest flat-rate pricing, and a phone that’s answered 24/7. We’re based in Bethalto, and we treat your home like it’s in our own neighborhood.

What Sets Us Apart

The things that matter when someone’s working in your home.

GRP|WEGMAN technician testing the wiring inside a home furnace with a meter

Flat-Rate Pricing

You’ll know the price before we start, and it won’t change when the job’s done.

GRP|WEGMAN technician checking an outdoor AC unit with refrigerant gauges and a multimeter.

Union-Trained Techs

Skilled, trained, and held to the same standards we bring to hospitals and schools.

Your Neighbors

We’re not a national chain or an out-of-town call center. We live here, and we’ll be here next year.

GRP|WEGMAN technician inspecting a water heater’s valves while holding a tablet

Answered 24/7

Nights, weekends, and holidays. Call any time and we’ll get you help.

GRP|WEGMAN AT HOME CLUB

Keep Your Home Ahead of Problems

The At Home Club keeps your heating and cooling running right, with two tune-ups a year, priority service, and no service call fees.

$198/year

No monthly fees

Join the At Home Club →

Spring & Fall Tune-Ups

Your AC checked before summer, your furnace before winter.

Priority Service

Members get priority scheduling, even during heat waves.

No Service Call Fees

Including nights, weekends, and holidays.

10-Year Labor Warranty

On new HVAC systems installed by GRP|WEGMAN.

How It Works

Simple, upfront, and no surprises.

At Home Club Members

pay no service call fees.

See the Club →

Call or Request Service

Call 618-258-9000 anytime, 24/7, or request service online. We'll find a time that works for you.

Get Your Price Up Front

Your technician finds the problem and gives you a flat-rate price before any work begins. No hourly guessing and no surprises at the end.

Problem Solved

We fix it right, clean up after ourselves, and make sure everything’s working before we leave

What Our Neighbors Say

“

They were here the next day and had my air conditioner in and I had air that night.

“Our AC had went out... I called and they got it all set up and they were here the same day to evaluate the situation... It's so quiet you can't even hear it... fantastic guys, very courteous, very professional, explained everything about the whole unit. It was just a very fabulous experience with us.”

RHONDA Edwards

GOOGLE REVIEW

See our reviews on Google →

Common Questions

Still have a question?
Call 618-258-9000, 24/7.

What areas do you serve?

Homes across Madison, St. Clair, Jersey, Calhoun, and Macoupin counties. See the full list on our service areas page, or call 618-258-9000 to check your address.

Are you the same GRP|WEGMAN that works on commercial buildings?

Yes. GRP|WEGMAN At Home is our residential team, backed by the same company that has served the Metro East for more than 70 years.

How does your pricing work?

We use flat-rate pricing. You’ll get your price up front, before any work starts.

What is the At Home Club?

Our yearly maintenance plan. For $198 a year, with no monthly fees, you get spring and fall tune-ups, priority service, and no service call fees. See the Club.

What brands do you work on?

All major makes and models.

Do you offer financing?

Yes, on new systems. Call 618-258-9000 and our team will walk you through the options.

Proudly Serving the Metro East

We’re based in Bethalto and serve homes across Madison, St. Clair, Jersey, Calhoun, and Macoupin counties. Find your town to see what we know about homes like yours.

View All Service Areas

Heat, AC, or plumbing quit on you? Call your neighbors.

Call your Neighbors at GRP|WEGMAN

Save our number in your phone so it's there when you need it: 618-258-9000. We answer 24/7.

Request Service

Tell us what's going on and we'll call you back during business hours.
Need help now? Call 618-258-9000, 24/7.

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