Danisi Energy has been serving Suffolk County for over 50 years. From Great Neck to the Hampton?s Danisi is on the cutting edge of Heating, Air conditioning, & Geothermal Technology. We specialize in high efficiency heating and air conditioning systems with the highest degree of comfort along with the lowest possible operating costs. We are a True full service 24 hour a day, 7 day a week HVAC Company. - Read more