Geothermal Heating & Cooling in the Metro East.

Repairs, replacements, and tune-ups for the system under your yard.

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24/7 Service

Flat-Rate Pricing

Union-Trained Techs

Locally Owned

Signs Your Geothermal System Needs Help

Geothermal systems are built to last, but small problems still grow when they’re ignored.

Lukewarm Air

Air from your vents isn’t as warm or cool as it used to be.

Rising Energy Bills

Your backup electric heat may be running more than it should.

Strange Noises

Grinding, buzzing, or rattling from the unit means something needs a look.

Water Around the Unit

Puddles near the unit can mean a drain or loop issue.

Turning On and Off

Short cycling wears out parts and wastes energy.

Error Codes or Lockouts

Your system shuts itself off or shows a fault on the thermostat.

Noticing any of these? Call 618-258-9000 or request service

Geothermal Services for Your Home

GRP|WEGMAN technician carrying a tool bag from his service truck to a customer’s home

Geothermal Repair

We diagnose and fix geothermal heat pumps, from electrical faults to refrigerant and water flow problems. You’ll get the price before any work starts.

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GRP|WEGMAN At Home tool bag with refrigerant gauges in front of an indoor geothermal unit

Geothermal Replacement

When your indoor unit is near the end of its life, we’ll replace it and connect it to your existing loop.

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GRP|WEGMAN technician reviewing system details on a tablet with a homeowner

Geothermal Tune-Ups

Regular maintenance keeps your system efficient and catches small problems early. Club members get tune-ups included.

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Repair or Replace?

Geothermal units last longer than standard systems, so repair is often the right call. Here’s how to tell.

Repair Usually Makes Sense When...

The unit is under 15 years old
The problem is a single part
Your bills are steady
The system has been reliable

Replacement Is Usually Worth It When...

The unit is 20 to 25 years old
Repairs keep adding up
It uses R-22 refrigerant
Backup heat is running more and more

The Loop Stays

Your ground loop typically lasts 50 years or more. Replacing the indoor unit usually means reusing the loop already in your yard.

Got a big replacement quote from someone else? Let us take a look before you decide.

Get a Second Opinion

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 your home is cool again before we leave.

GRP|WEGMAN AT HOME CLUB

Stay Ahead of Geothermal Problems

The At Home Club keeps your heating and cooling running right, with two tune-ups, 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.

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 AC Questions

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

How often should a geothermal system be serviced?

At least once a year. Regular tune-ups keep it efficient and help catch small problems before they turn into big ones. At Home Club members get tune-ups included.

How long does a geothermal system last?

The indoor unit typically lasts 20 to 25 years. The ground loop often lasts 50 years or more.

Why is my backup heat running so much?

Your system may be undersized, low on refrigerant, or having a water flow problem. Backup electric heat costs more to run, so it’s worth a call when you see it.

Can you work on my existing geothermal system?

Yes.

Do you offer emergency Geothermal repair?

Yes. Call 618-258-9000 anytime, 24/7.

Do you offer financing on new systems?

Yes. Financing is available on new heating and cooling systems, so you can get the comfort you need now and pay over time. Call 618-258-9000 or request service, and our team will walk you through the details.

Is Your Geothermal System Quitting on You?

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.

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Need help now? Call 618-258-9000, 24/7.

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