The following are just some of the Connecticut towns where ENT Heating and Cooling Company, Inc. provides residential and commercial heating and air conditioning services: Meriden, Wallingford, Cheshire, Hamden, North Haven, East Haven, New Haven, West Haven, North Branford, Branford, Guilford, Madison, Clinton, Killingworth, Orange, Milford, Woodbridge, Stratford, Shelton, Fairfield, Westport, Weston, Wilton, Durham, and Middlefield.