I called Royal Class Service at the end of last summer because my air conditioner wasn't working. The guy came out to look at it and said it was low on Freon. He said I should wait until this time of the year to fix it since I wouldn't need it before then, so I did. I scheduled an appointment recently and he came at the scheduled time. He was very nice and professional. He had to order the part, but, had it within 2 days and came back out to install it. I was very pleased with how smoothly everything went. My husband was a builder and used their services for years. I would definitely recommend them to others.