Mark T. Serrenti Sr. began doing heating work 44 years ago, for a local oil company.

When they left the business, Mark went into business for himself. He purchased National Furnace Company in 1984. National Furnace Company can fill all of your heating and air-conditioning needs. We specialize in oil heating and equipment.

We’re in heat

Day or night, 24/7, count on trusted service from National Furnace Heating and Air Conditioning.

let's talk!