Welcome!

The Stielau Oil Company has been serving the Middlesex county area since 1945 when converting coal boilers to oil was the latest technology. In keeping up with the times, air conditioning and sheet metal fabrication were added to our services in the 1970's.

Today, some of the finest heating and cooling products, professional workmanship on servicing and installations, and the personalized service and responsiveness of a small company.

We are known not only for our craftsmanship in heating systems, but also for our knowledge in air conditioning and sheet metal fabrication.

From our Price Protection Programs, service contracts, 24-hour service, and fuel additives... we not only know the oil business, we know how to stay in business.

Offering service plans, budgets, computerized automatic delivery, Fuel oil additive, radiant heat, snow melt. With the confidence to handle all your comfort needs.