Cornelius was friendly and knowledgeable. He came...

Cornelius was friendly and knowledgeable. He came for a simple thermostat installation replacing an older one. But in a 100+ year old house very little is simple. He was able to pinpoint an issue that began sometime in the prior month that was keeping the furnace from even turning on. He then consulted with me regarding how I would like him to work around the problem to do the installation. He also provided some great information on my furnace that will be helpful for years, and showed me how to add more wireless sensors for when my basement is remodeled.