More about us: residential, commercial, duct work furnaces boilers, nassau, suffolk, sales and service. Our products and services include air conditioning systems, central air, commercial services, construction, duct work, furnaces, installations and residential services. We specialize in air conditioning systems, commercial equipment, cooling, furnaces, heating and heating & cooling. Accepted forms of payment are licensed & insured. We offer service in and around residential and commercial. We prefer to use these brands: commercial and residential. Our certifications include insured and licensed.