Larry C arrived on time, was very professional, personable and informative. As a new owner of this property, I was not familiar with an oil fired unit. Larry was fine with me watching him inspect and clean the unit, plus he explained as he went, the purpose of each component. (The office/phone staff was also excellent in accommodating us, they honored the service agreement of the prior owner after it had expired, which speaks volumes for this business. Plus, they called when Larry was on the way.) Overall, it was an excellent experience in all aspects!