The 10 Best Hvac/mechanical contractors in Saint Charles, MO

With over 17 years of experience, No Problem Heating & Cooling keeps homes and small businesses comfortable throughout St. Peters, St. Charles, O’Fallon, Wentzville, and neighboring communities. Our certified technicians provide precise AC and furnace repair, energy‑saving replacements, seasonal maintenance, and smart thermostat installs. We also safeguard indoor air with whole‑home air... (more)

Notable project: (Mechanical commercial mechanical. 700 W Chesterfield Pkwy, Unit CC, Chesterfield, MO, 63017). Alteration for monsanto--ro water chilled water feed to new growth chambers. supply and exhaust duct to each chamber - 13bld-05732

Notable project: (Mechanical commercial mechanical. 11548 Adie Rd, Maryland Heights, MO, 63043). 2 exhaust fan installation - duetsche precision llc

Notable project: (Mechanical residential mechanical. 14812 Frais Dr, Florissant, MO, 63034). Replacing air conditioning unit

Notable project: (Mechanical commercial mechanical. 16889 Chesterfield Airport Rd, Chesterfield, MO, 63005). Interior finish for new building (compressed air and vacuum lines only)- pacific dental; 14bld-02523

Notable project: (Mechanical residential mechanical. 36 Millwell Dr, Maryland Heights, MO, 63043).

Notable project: (Mechanical. 4021 Yucan Dr, Springfield, IL, 62711). -new apartment building 12 units 40, 284sf occupancy class r-2 construction type vb 4041 yucan hemberger roofing - unlimited per zoning address changed from 4041 yucan to 4021 yucan install 12 electrical furnaces 12 air conditioning units all ductwork. permit fee should be 600.00 refund 300.00

Anton's is a full-service HVAC and plumbing company serving St. Louis and the surrounding areas. With over 40 years in business, our company is dedicated to serving our friends and neighbors with high-quality services at affordable prices. Moreover, our Proud Independent Trane Dealer status and NATE-certified technicians ensure that you get not just reliable but also quality service with each... (more)

Notable project: (Residential alterations - decks / additions / solar / remodels / patio covers / plumbing / electrica. 2029 Dona Jane Dr, O Fallon, MO, 63366). Fire repair - replace wall between living room and kitchen (frame)

Notable project: (Mechanical commercial mechanical. 26 Progress Pkwy, Maryland Heights, MO, 63043). Interior remodel for new tenant- engineered sales; 15plu-11903

Notable project: (Mechanical commercial mechanical. 7525 Page Ave, Saint Louis, MO, 63133). Instal new remote terminal unit and duct system - steris corporation-stability chambers

Notable project: (Mechanical residential mechanical. 8 Leaside Ct, Manchester, MO, 63011). Replace lennox 100 000 btu furnace with 100 000 btu york 80% afue furnace

Notable project: (Mechanical residential mechanical. 2 Santa Fe Dr, Saint Louis, MO, 63119). Replace existing furnace e-coil & condensing unit

Jerry Kelly Heating & Air Conditioning is a Missouri mainstay with a reputation for excellence: in our service, products, and value. Since 1977, we have provided HVAC and indoor comfort solutions for homeowners in St. Peters and surrounding West County communities. As professional HVAC contractors, our goal is to prioritize customer satisfaction in everything we do and stand behind our products... (more)

Notable project: (Mechanical multifamily mechanical. 208 Ambridge Ct, Chesterfield, MO, 63017). Install air handler and condensing unit