We had to replace our air conditioner this summer and got quotes for replacing the furnace at the same time. We talked to three different companies and decided to go with Energy Services in Naperville. Their prices were very reasonable compared to the others and they didn't try to upsell us. In fact, since our 14 year old furnace was still functioning okay at the time, they didn't push us to replace that even though we expressed an interest in an entirely new HVAC system. We ended up just doing the air conditioner. Everything went great with the install and we feel like we paid a fair price for a great unit with great service. Now I must say that we were used to getting phone calls every few months from our old heating/air company requesting we make an appointment for a tune up, system check, etc. and Energy Services does not do that. Good in that I don't feel like they are trying to drum up business all year long, but it's also sometimes a good reminder when you get those calls to get a check up before the change of a season! Hope that helps...good luck.
http://www.energyserv.com/
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