I only wish that more service companies would be as good as Spark Heating & Air Conditioning Ltd. Many of my family members use them as well as we do--and I would have no problem recommending them to others. We recently had them come out to service our air conditioning unit. We belong to their membership program. We pay a monthly fee and they come out to our home twice per year to do a major service on both the air conditioning unit and the furnace. I really like that the technicians take the time to explain everything to you thoroughly in layman's terms for those of us who are not techically savvy. They even take tons of photos to show you what they are working on. During the last visit they came out on I did not realize that the owner himself works hands-on. Yesterday, he measured and wrote up everything. When he finished the service and came to talk to me I asked him if I needed to call into their office to schedule another trip out. He explained to me that he was the owner and that the company would know where he was at--and that he would set it up. They are awesome and I only wish that others were like them.