Here in Suffolk County on Long Island, DANISI has been in business for over 50 years. We are the only true full service Heating, Ventilation, Air-conditioning Company in the area. When we come to service you, we don't tell you to call the A/C guy, or the heating guy, or the plumber, or the electrician ; we are all of these in one which is what a full service company should be. We are also a family-owned and operated business. Even though it has been a challenge to compete with larger corporate companies, we have shined through because of our commitment to our valued customers. In the past, we have lost customers to our competitors only to have many return to us after being disappointed by the impersonal way in which they were handled. A DANISI customer knows we care about them and we're here for them 24 hours a day, Give us a call, and find out what our customers already know
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