Yes. K2 Cooling & Heating serves Northport, both the incorporated village and the surrounding hamlet, from our shop at 60 S 2nd St, Unit V in Deer Park, about 9.8 miles south. The drive is usually about 25 minutes. We repair and install boilers, radiator and baseboard systems, furnaces, central air, heat pumps and ductless mini-splits, and we answer 24/7.
Reliable Heating & Air Conditioning for Northport Homes
Northport wraps around a deep harbor off Long Island Sound, and homes on the hills above the water catch strong north winds in winter and salty air year round. Condensers near the harbor corrode faster than inland units, and their coils need cleaning more often. Many village streets are steep and narrow, with houses close together, which limits where an outdoor unit can go. Summers are humid, and older homes without ducts get uncomfortable on the second floor, while winter wind finds every gap around old windows and sills.
Five Core HVAC Services in Northport, NY
K2 handles heating and cooling for Northport, from radiator homes in the village to waterfront colonials and postwar ranches outside it.
For rooms the central system does not reach, such as attics, additions and finished basements, we also handle ductless mini-split installation in Northport.
Our Long Island guides to AC repair, furnace repair on Long Island and boiler repair on Long Island cover what fails and what it costs.
1. Air Conditioning Diagnostics & 24/7 Emergency AC Repair
Central air repair in Northport: capacitors, contactors, fan motors on harbor-side condensers, refrigerant leaks, and drain problems that freeze coils or overflow attic pans.
2. High-Efficiency Central Air Conditioning Installation
New central air for Northport homes, including attic air handlers for houses that were built without ducts. We size the system to the house and plan the duct routes before the work starts.
3. Gas & Oil Furnace Repair & Seasonal Heating Tune-Ups
Gas and oil furnace repair for Northport colonials and ranches, including igniters, flame sensors, inducer and blower motors and venting problems.
4. Hydronic Boiler Repair, Steam Systems & Combi-Boiler Upgrades
Steam and hot-water boiler repair for Northport radiator homes: low-water cutoffs, circulators, zone valves, relief valves, expansion tanks, air bleeders and oil burner service.
5. Cold-Climate Heat Pumps & Ductless Mini-Splits
Cold-climate heat pumps for Northport homes moving off oil, often paired with the existing boiler as backup and with ductless heads for the rooms radiators do not reach well.
A qualifying cold-climate heat pump may earn a PSEG Long Island rebate. Read how rebates are claimed.
Ductless Mini-Split Installation in Northport
Ductless is a natural fit for Northport Village, where many homes have radiators, plaster walls and no space for ductwork. One or two indoor units can cool the upstairs without opening walls, and a slim ducted unit in an attic can serve several bedrooms with small ceiling grilles. Near the harbor we place outdoor units away from direct salt spray and recommend coated coils where the exposure is high.
Ductless mini-split installation: zones, costs and how it works →Housing Stock & HVAC Constraints in Northport
Northport Village has one of the older housing stocks in the Town of Huntington, with many nineteenth- and early twentieth-century homes on and around Main Street, Bayview Avenue and the streets that climb from the harbor. These often heat with steam or hot-water radiators and have no ductwork at all. Outside the village, the Northport hamlet and Fort Salonga side are mostly postwar and later capes, ranches, colonials and some larger waterfront homes, many with oil or gas boilers and central air added later in the attic. Homes that have been expanded several times often have heating zones that no longer match the rooms they serve.
Common HVAC Problems in Northport Homes
In Northport we spend a lot of time on radiator and boiler systems: steam boilers with low-water cutoffs and dirty sight glasses, hot-water systems with failed circulators or waterlogged expansion tanks, and air trapped in zones on the upper floors. Older oil burners need regular nozzle and filter service. On the cooling side, harbor-side condensers show corroded fins and failing fan motors, attic air handlers clog their drain lines, and frozen coils show up when a drain connection pulls air into the cabinet.
Utility Coverage & PSEG Clean Heat Rebates in Northport
Northport homes get electricity from PSEG Long Island and, where it runs on the street, natural gas from National Grid. Many older houses still heat with oil. If you are weighing a heat pump, PSEG Long Island sets the rebate amounts and rules. Rebates go through a PSEG participating contractor or straight to PSEG, so read the current program details at psegliny.com first.
K2 does not file rebate applications. How rebates work
Local Presence in Northport, NY
From Deer Park we head north on Commack Road or Deer Park Avenue, then through East Northport on Larkfield Road, which brings us into Northport in about 25 minutes in normal traffic. We work in the village around Main Street, the harbor and Northport Village Park, on the hills along Bayview and Ocean avenues, and in the hamlet neighborhoods toward Fort Salonga and the Northport VA Medical Center. Village homes often have narrow side yards and stone foundations, so we look at equipment access and condenser placement before quoting a replacement.
Permits & Building Regulations in Town of Huntington
Mechanical permits are governed by the Village of Northport Building Department (224 Main Street, Northport, NY 11768) inside the village; Town of Huntington Department of Engineering Services (100 Main Street, Huntington, NY 11743) outside it.
Northport has two permit offices. Homes inside the Incorporated Village of Northport file with the Village of Northport Building Department (224 Main Street, Northport, NY 11768); homes in the unincorporated hamlet file with the Town of Huntington Department of Engineering Services (100 Main Street, Huntington, NY 11743). Village historic-district rules can also apply to outdoor equipment. K2 does not file town permits. We do not pull permits, so check with whichever office covers your address before the work is booked.
Recent work in Northport
Nearby Areas We Serve
K2 also serves the towns around Northport. Our closest local pages:
- HVAC repair in Greenlawn, NY
- HVAC repair in Elwood, NY
- HVAC repair in Kings Park, NY
- HVAC repair in Commack, NY
- HVAC repair in Huntington Station, NY
- HVAC repair in Huntington, NY
See every town we cover on the Suffolk County service area page.
Frequently Asked Questions in Northport, NY
Do I file HVAC permits with the Village of Northport or the Town of Huntington?
It depends on your address. Homes inside the Incorporated Village of Northport file with the Village Building Department at 224 Main Street; homes outside the village file with the Town of Huntington Department of Engineering Services. K2 does not file town permits, so confirm with the right office before your installation.
Can you work on steam radiators in an old Northport house?
Yes. We service steam and hot-water boilers in Northport, including low-water cutoffs, sight glasses, air vents, circulators and zone valves, and we can tell you whether an older boiler is worth repairing.
How do you cool a Northport home with no ductwork?
Ductless mini-splits or a slim ducted unit in the attic are the usual answers. Both avoid opening plaster walls, and a multi-zone system lets each bedroom be controlled on its own.
Does salt air affect AC units near Northport Harbor?
Yes. Condensers close to the harbor corrode faster and their coils clog with salt and debris. Regular coil cleaning and careful placement help, and coated coils are worth considering on a replacement.
Have you done recent work in Northport?
Yes. In August 2026 we fixed a Northport air conditioner with a frozen coil caused by an uncovered condensate drain line, then added refrigerant on a second visit. The details are on our recent projects page.