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Keep Your House Cool With Our Air Conditioning Service

Air conditioning in St. Charles, MO and St. Louis, MO

An efficient cooling system can save you money on your utility bill, so trust your air conditioner to the professionals at A's Heating and Cooling & Sauer Cooling and Heating, serving the St. Louis and St. Charles, MO areas for over 30 years.

You will receive free estimates in the event you need a new or replacement system installed.

Reliable Air Conditioner Service for Your Home or Business

  • Central air systems
  • Mini-split or ductless systems
  • Rooftop units
  • Ventilation
  • Zoning controls
  • 24-7 Fast Emergency Service

When the temperature rises and your air conditioner goes out, you’ll want it fixed as quickly as possible. Call us at 636-243-1519 for our 24-hour emergency service. We inventory most parts, so we can fix any brand of air conditioner.

For outstanding air conditioning service, call the experts with Sauer Cooling & Heating today at 636-243-1519. We offer some of the most competitive rates in the area.