After spending five figures on a new furnace and air conditioning system a mere 16 months ago, I can attest with all the others that Sears should not be used for HVAC work (or any other improvement work).
1) System was incorrectly sized. Multiple external parties have confirmed that not only was the workmanship of the install poor, but the system was not accurately sized for my house.
2) Sears went through three subcontractors during my install. Each one felt like starting from scratch. The end product has never worked properly.
3) When the system failed to work properly, contacting sears for repairs became impossible. Example, my furnace stopped working when temperatures outside we under 0 degrees F. Sears told me it would be six days before they could have someone out there. They also told me if I had anyone else touch the system, all warrantys would be VOID. How is that for scare tactics?
4) Sales team and install project managers refused to talk to me even after I had confirmed by outside parties that they incorrectly built the system.
5) The Sears complaint escalation tree is worthless. Everyone feels bad for my situation, but remedies are never suggested or accepted (if suggested by me).
All-in-all I would recommend you stay as far away from Sears Home Improvement as you can. Don't be fooled into thinking that a large company will be able to provide better pricing or support than small local companies. I myself was worried that small local companies would declare bankruptcy rather than provide warranty work, a fact i've seen personally before... Sears doesn't have to declare bankruptcy to not support its customers; it only has to make obtaining that support unfeasible.
Monetary Loss: $15000.