Chair City Oil has been servicing our heating system for 32 years in 2 different houses. We've installed heating systems in both houses and had nothing but great service. We've done the oil cap plan several times and definitely benefit from it but not pressured to do it if we choose not to. Anytime we've had a problem, when its convienient or not, CCO has been there to help us. Can't say enough good about them, real life people.