We had arranged last week with Northwood Heating and Air Conditioning for our annual A/C spring maintenance. John arrived well within the 2-hour window. He was courteous, professional, and efficient. He used the side door as requested, wore shoe covers upon entering the house, and cleaned up the areas in which he worked -- even putting off the lights when he was done. No detail was too small for John to attend to -- from checking the humidifier vent shut-off to inspecting the quality of the filter to hosing clean the evaporator coils outside. The standards are higher with the people at Northwood than with some other companies that we have used over the past 35 years. This is the normal quality of service we get when dealing with their staff. It is always a pleasant and stress free visit because they treat our needs and our home as though they were their own. We look forward to dealing with Northwood again in the fall.