I am very disappointed with CroppMetcalf and would...

I am very disappointed with CroppMetcalf and would not recommend them for yearly maintenance. I have been using them for sometime and I blindly trusted the techs since I have always asked for senior techs. My heating system was not operating at full capacity and the tech recommended I have my wheel blower cleaned with a chemical solution. Fortunately a friend of mine recommended a much smaller company with one owner who has so many years of experience to come out and check the system. He found out the Wheel Blower and Coil was so dirty. He was shocked when I told him I have CroppMetcalf come out twice a year to do the maintenance and not once did they say anything about the wheel blower needing to be cleaned. The other smaller company said chemical spray alone will not clean the amount of dirt that is packed and the coil and wheel blower needs to be pulled out and should be
washed with water and chemical. It took him 6 hours to clean all the dirt out and put it back together. He said this amount of dirt build up takes 4-5 years to accumulate. When I told him I had maintenance contract he was shocked that CroppMetcalf never said anything about it to me.
I do not recommend them. They are a big company and have different techs and it is so hard to get a hold of them to discuss issues especially if you have a rental property.