CELCO Heating & Air Conditioning serves Greenwich
Looking for a dependable HVAC contractor in Greenwich? CELCO Heating & Air Conditioning repairs, maintains, and installs gas and oil furnaces, boilers, heat pumps, ductless mini-splits, central air conditioning, and standby generators for Greenwich homes, dispatched from our headquarters at 467 Bishop Ave in Bridgeport. Our NATE-certified technicians give you upfront pricing before work begins, and 24/7 emergency help is available when a system fails.
Family-owned since 1976 (50 years). License S1-392747. Call 203-371-0055 or schedule service online.
Call 203-371-0055Schedule ServiceRequest an EstimateGreenwich homes range from older houses to new construction, and their heating and cooling needs vary just as widely. Whether your home runs on natural gas, oil, or electricity, our team can repair what you have or help you choose what comes next.
No heat on a cold Greenwich morning? Our technicians diagnose and repair gas and oil furnaces and boilers, and we install new high-efficiency and condensing equipment sized to your home, not guessed from the label on the old unit. If you heat with oil, we can service your current system, replace it with a new oil furnace or boiler, or talk through a move to gas or a heat pump. See furnace repair & installation and boiler services.
Heat pumps move heat instead of making it, so one system cools your home in summer and heats it through most of the winter. Ductless mini-splits are a clean fit for additions, finished attics, and older homes without ductwork, and a hybrid setup keeps your furnace or boiler as backup for the coldest days. Save up to $8,150 with available heat-pump incentives on a qualifying 5-ton system.*
*Up to $8,150 example is for a qualifying 5-ton system replacing oil, propane, natural-gas or electric-resistance heat, completed Sept 1 to Dec 31, 2026. Eligibility and program rules apply, and amounts may change. See Rebates & Incentives for details.
When a humid Greenwich summer pushes an older system past its limit, we repair and replace central air conditioners and air handlers, check refrigerant and airflow, and size new equipment correctly so it cools evenly instead of short-cycling. If some rooms never cool evenly, we can look at the ductwork, zoning, or a ductless unit for those spaces. See air conditioning services and AC repair.
We repair, replace, and install tank and tankless water heaters, plus combination boilers that supply both heat and hot water from one unit. See water heaters and tankless water heaters.
Coastal storms and winter weather can knock out power across Greenwich. We install, repair, and maintain automatic standby generators that start on their own when the grid goes down, keeping heat, refrigeration, and sump pumps running. Learn about generators and automatic standby generators.
We install, repair, and maintain heating and cooling for Greenwich-area businesses, dispatched from our Bridgeport headquarters. See commercial HVAC maintenance.
A yearly tune-up keeps furnaces, boilers, heat pumps, and air conditioners running efficiently and catches small problems before peak season. Ask about the Celco maintenance program for priority scheduling and system checkups.
CELCO serves homes across Greenwich, CT, from Old Greenwich and Riverside to Cos Cob, Byram, and Glenville. Our technicians are dispatched from our headquarters at 467 Bishop Ave, Bridgeport, CT 06610, and our family-owned team has worked in Fairfield County since 1976.
Here is what to expect when you call:
Nearby communities we also serve include Stamford, Darien, New Canaan, and Norwalk. Browse all service areas.
Call 203-371-0055, schedule service, or request an estimate. 24/7 emergency service is available.
Schedule ServiceRecent Celco installations in Greenwich, CT. Photos are from completed jobs; customer-identifying details are omitted.
A Greenwich home on a wooded hillside received two Bosch heat pump outdoor units, set below the house for efficient heating and cooling year-round.
A Greenwich basement received a new Trane gas furnace, connected to new insulated ductwork with PVC venting for efficient, reliable heat.
A Greenwich home received a new Thermo Pride oil furnace with new insulated ductwork for dependable winter heat.
We serve Greenwich from our headquarters at 467 Bishop Ave in Bridgeport, CT 06610. Our technicians come to your Greenwich home; call 203-371-0055 to schedule.
Yes. We repair, maintain, and replace oil and gas furnaces and boilers in Greenwich. If you are thinking about moving off oil, we can also walk you through a heat pump or hybrid system.
Yes. Celco offers 24/7 emergency service for Greenwich homes. Call 203-371-0055.
Save up to $8,150 with available heat-pump incentives on a qualifying 5-ton system. The example applies to a qualifying 5-ton system replacing oil, propane, natural-gas or electric-resistance heat, completed Sept 1 to Dec 31, 2026. Eligibility and program rules apply, and amounts may change; ask us to check current eligibility.
Yes. Connecticut license S1-392747, family-owned since 1976 (50 years), with NATE-certified technicians.
Serving Greenwich from our Bridgeport headquarters. Browse all service areas or call 203-371-0055.
CELCO Heating & Air Conditioning | 467 Bishop Ave, Bridgeport, CT 06610 | Family-owned since 1976 | CT License S1-392747