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HVAC & plumbing contractors in O'Fallon, IL

Browse 7 verified HVAC & plumbing contractors serving O'Fallon, Illinois. Every listing shows a real local phone number — compare pros and call directly. Need emergency service? Look for 24/7 availability and call the nearest company.

HVAC✔ Listed

Home Heating & Cooling

1450 Frontage Rd

📞 (618) 416-0111 Website ↗ Is this you? Claim →

HVAC✔ Listed

Davis Heating and Cooling Ofallon Illinios

103 Karl Pl

📞 (618) 781-9254 Is this you? Claim →

Plumbing✔ Listed

Alexander Plumbing & Remodeling LLC

702 Donna Dr

📞 (618) 227-4320 Website ↗ Is this you? Claim →

Plumbing✔ Listed

Plumbers Supply Company

6700 Old Collinsville Rd

📞 (618) 624-5151 Website ↗ Is this you? Claim →

Plumbing✔ Listed

O'fallon Winnelson

111 W 2nd St

📞 (618) 624-0454 Website ↗ Is this you? Claim →

Plumbing✔ Listed

Spengler Plumbing, Heating, Cooling, Remodeling

1402 Frontage Rd

📞 (618) 632-4433 Website ↗ Is this you? Claim →

Plumbing✔ Listed

Alexander Plumbing & Remodeling

510 W Hwy 50 Ste A

📞 (618) 227-4320 Website ↗ Is this you? Claim →

⚠️ Listings are compiled from public business records and may change. Always confirm licensing, insurance, and current pricing directly with the contractor before hiring.

Nearby cities

O Fallon Fairview Heights Swansea Belleville Caseyville Collinsville Lebanon Maryville