Welcome to Arenz Heating Air Conditioning. Our experienced staff of approximately 40 employees have serviced our Eastern Long Island customers since 1998 and offer you over 170 years experience in HVAC New Construction, Installation, Renovation and Service. We pride ourselves on doing each job right the first time and work hard to deserve the recommendations that our customers pass onto their friends, neighbors and co-workers. You won’t see a lot of advertising about our company as Customer Referrals represent the backbone of how we are building our business. We pride ourselves on doing the job right, the first time! Our staff of professional, courteous and trained technicians stands ready to serve you, 24 hours a day, 7 days a week. We provide ongoing training and education for our technicians in an effort to keep them up to date on the changes in technology.