B & B Heating & Cooling is the premier residential HVAC contractor, electrician, and plumber serving St. Charles, St. Peters, and O’Fallon. Since 1985, our licensed team has specialized in air conditioning repair service, furnace installation, and high-efficiency AC maintenance. As a leading electrical installation service, we provide electrical panel upgrades, surge protection, and home generator installation. Our residential expertise includes drainage service, water heater repair, and sewer line cleaning. For 24/7 emergency service, Lennox system installation, and boiler repair, trust B & B Heating & Cooling in Lake St. Louis and across St. Charles County. Reliable home comfort and expert technical care.
