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Frequently Asked Questions
Trust the experts at T.F. O’Brien for courteous, professional services.
(516) 488-1800
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Trust the experts at T.F. O’Brien for courteous, professional services.
(516) 488-1800
Or complete our short form
"Completely Satisfied"
"I was completely satisfied with the professionalism, quality, and courteousness of your service. I will continue to call on and recommend you all future AC/Heating needs. Thank You."
- T.F., Baldwin, NY
"Annually as per your manual, annual maintenance is required to prolong the life of the equipment."
"Boost efficiency by adjusting your thermostat 4 degrees from your usual comfort setting before leaving the house. This way, your system won’t have to work as hard to reach your preferred temperature when you return."
"It allows you to catch issues before they become larger repairs."
"Afue- annual fuel utilization efficiency / SEER – Seasonal energy efficiency ratio"
"Leaks, not heat, system not cooling or heating, abnormal noises, temperature on the thermostat does not met set point."
"Each unit is different and depends on the up keep of the systems. In order for it to have a greater self life you want to participate in your annual maintenance checks, even when things are operating just fine."