Halco has been providing high-quality solutions to residential and commercial clients since 1984. We have divisions that offer high-efficiency heating and cooling systems, plumbing and electrical solutions, home energy assessments, insulation and air-sealing, clean renewable energy systems and much more! We are dedicated to quality work, sustainability, innovation, and to providing extraordinary service to our clients. We are open 7 days a week until 9PM with no overtime and offer 24-hour emergency service. Halco stands alone in skills, talents, and experience.

With nearly a century of experience, Donohue Halverson Plumbing, Heating, Cooling, & Electric has been providing quality service to the Greater Ithaca, New York region since 1938. If you need plumbing, heating, cooling, or electrical service for your home or business, we have certified professionals on staff to diagnose your problem and determine the best and most cost-efficient way to correct it. Our team of highly skilled and certified professionals provides installation, replacement, repair, and maintenance services to our local communities.