In Illinois' ever-changing environment, you may have your furnace running in the morning and by afternoon turning on your air-conditioner. At Classic Plumbing & Air, we can help you keep your air conditioner running at peak efficiency and help prevent malfunctions, while also helping to save you money on utility costs. We are your local, independent American Standard® Heating & Air Conditioning dealer. Ask us about Ameren incentives on a new air conditioning unit. We also offer Peak Performance Plans to suit your needs and budget.