Hot Water Boilers, Baseboard Heat & Hot Water Heaters, Central A/C - Install & Replacement & duct -work, Minisplit Systems , and 2 more
"A&C Quality Air did an excellent job replacing my boiler and installing central air. The team was professional, efficient, and respectful. Great experience from start to finish — highly recommend!"
9D1DE19818E99A11D5BBD6A1B1C9ED92CAFA03C0130BD24BE87780621C9D4749 C. in July 2025
Window AC Installation & Repair
"Came promptly. Answered all questions clearly. Brought and installed window ac very professionally. It looks good and is working fine. Will be happy to use again if similar sercice is needed."
A9F0DB7C4B168E09F4B41A4A2414387879E747CAE9C285D47495398AECF68463 9. in May 2025
Generator installation, service, maintenance, A/C & Cooling Systems, Energy efficiency , and 2 more
"Miguel's team has provided quality service and setup the generator within scheduled timeframe. The team is also very prompt on addressing the issue inspectors found without delaying the target date. We are very satisfied with the service Miguel's team provided. The generator has picked up couple of power outage within 10 seconds, we never have to worried about loss of power for days like what happened last year in New Jersey."
Ananthakumar M. in July 2012
HVAC Repair & Installation
"Super fast, super professional, and super clean. Great experience and would recommend this company to anybody."
Daniel R. in May 2020
Cental A/C, Furnaces, Humidifier , and 1 more
"Sterling Heating & Cooling saved the day! Our heat went out, and my husband has a number of medical conditions and cannot tolerate being too cold. Sterling came promptly and they were able to identify and repair the issue within an hour. They were pleasant and customer focused. I would highly recommend Sterling Heating & Cooling!"
Kristen A. in November 2018
Denville HVAC & Air Conditioning Contractors are rated 4.7 out of 5 based on 230 reviews of 230 pros.
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