I smelled gas one morning and called Colorado Springs Utilities. They advised me to have furnace serviced because there was a small gas leak, and they turned off the gas to the furnace. Scheduled service appointment with Cornerstone; arrived exactly at scheduled time. Took him about 2 minutes to find and fix the problem; didn't try to add additional repairs or tell me things needed to be fixed. Was very professional and I don't know anything about gas lines or leaks, so appreciated his integrity and honesty in fixing only what needed to be fixed. Would definitely recommend and will call again for any future repairs I need.

Susan Gartung,