You may find cheaper, but not better
Eric, sales rep for Casteel, came to give us an estimate to replace our whole HVAC system. As a new home owner, I've never dealt with an HVAC before. He was patient with my questions and taught me how the system works so I was prepared to make an educated decision for my purchase. I had 4 different estimates and have to admit, I spent more than I was expecting to on a new system but Casteel helped me to avoid a mistake in going with other companies, who wanted to sell me systems with old technologies (r22 or freeon is being phased out). I was educated about heat pumps and variable speed motors and the long term and comfort advantages of both. He helped us decide what was best for our house and budget. He was very knowledgeable about our old system and was quick to find it's short comings and mis-matched parts. While I could have found a cheaper system, it would not have been as good. Compared to other equivalent systems they were even the most competitive price!
The installation was prompt and well done, although there was a general lack of respect by the technicians... They started to smoke on my property without asking and complained when I asked them not to, one sat on my table, only one of them (of 3) used booties over their boots inside the house, and they were very loud and used foul language regularly. But they did do a good job and I'm grateful that they knew what they were doing. Not as professional as I'd hope, but got the job done and stuck to the estimate!