OSI Comfort Specialists provides the very best in heating oil, heating service, air conditioning service, and electrical. Serving Queens, Nassau County, and parts of Brooklyn and Suffolk County. Our 70-plus years of experience has taught us to anticipate your every need. We maintain your equipment, simplify your payments, deliver your fuel automatically, and shield you from unchecked costs with our price protection and service plans. Our team stops at nothing to ensure your complete satisfaction.