We called after 5 pm on a Thurs night with temps in the twenties & dropping fast, because we had no heat & rep Keith returned our call within 30 minutes – he was first trying to be helpful over the phone by having us troubleshoot before deciding he needed to make a home service call & informed us of the charge for the visit. he told us exactly what was wrong, that our furnace was in pretty good shape given it’s age & repaired it within 20 minutes. he also let us know we were using the wrong filter & told us what to use so as not to burn out the igniter again. i liked that he wasn’t pushing other repairs, or suggest we needed a new unit – so it’s not all about the money for Nebrasky! thank you for Keith’s courteous visit.