For 70+ years, GRP|WEGMAN has engineered comfort for hospitals, schools, breweries, industrial sites, and municipal buildings across the US. Now we're bringing that same expertise to your home in Metro East Illinois.
GRP|WEGMAN is the name behind our community's most critical heating, cooling, and plumbing:
Now we're opening our doors to homeowners — bringing the same union-trained technicians, the same engineering standards, and the same uncompromising reliability to the place that matters most: your home.
JOIN OUR TEAM OF TOP TECHNICIANS
CHOOSE GRP|WEGMAN FOR YOUR HOME SERVICES
Service Area
Our initial Illinois service area includes:

Bethalto | Alton | Edwardsville | Glen Carbon | Collinsville | Troy | Highland | Godfrey | Jerseyville | and surrounding Metro East areas.
We plan to expand to the St. Louis Metro area soon.
Don't search the web for the best service. Save your trusted GRP|WEGMAN Home HVAC & Plumbing professionals in your contacts now: 618-258-9000. We're ready when you need us.
REGISTER NOW TO JOIN GRP|WEGMAN'S
HOME SERVICE listing
The first 50 homes to register will enjoy:

Save your trusted GRP|WEGMAN Home HVAC & Plumbing professionals in your phone: 618-258-9000. We're ready when you need us.
1
Flat-Rate Honest Pricing
No hourly guessing games, no surprise charges at the end of the job. Before we touch a thing, you'll know exactly what it costs — and that number won't change. We know trust starts with transparency.
2
NEIGHBORLY SERVICE
We're not a national call center dispatching strangers to your door. We're your neighbors — local, accountable, and genuinely invested in the communities we serve. You'll recognize our faces, and we'll remember yours.
3
Proud, Affordable Union Labor
Every technician who walks through your door is union-trained, highly skilled, and held to the highest professional standards in the trade. We're proud to support good wages, safe working conditions, and the kind of craftsmanship that only comes from properly trained professionals. When you hire GRP|WEGMAN, you're investing in your home and your community.
4
Preventative Maintenance
The most expensive repair is always the one that could have been avoided. Our preventative maintenance programs are designed to catch small issues before they become major ones, saving you money and stress in the long run.
5
24/7 Response Times
Home emergencies don't wait for business hours, and neither do we. Whether it's a Friday night or a holiday weekend, a real GRP|WEGMAN technician is ready to respond. When something goes wrong, you won't be left waiting.