HAMILTONAIR
Founded in 1962 by H. B. Hamilton, Hamiltonair came to prominence for installation and service of through-the-wall air conditioning in many prestigious hotels, as well as for commercial refrigeration in many celebrated restaurants in mid-town Manhattan.
The appeal of sleek unobtrusive heating and cooling equipment naturally lent itself to the high-end residential market, especially in pre-war co-ops. Eventually, due to the great demand for residential installation, the commercial division was phased out.