Yes. K2 Cooling & Heating is based in Deer Park, roughly 5 miles southeast of Melville, and we serve homes, condos and townhouses across the hamlet. We repair and install central air conditioning, furnaces, boilers and heat pumps, including the aging split-system heat pumps in Melville's townhouse communities, and we install ductless mini-splits.
Reliable Heating & Air Conditioning for Melville Homes
Melville is an inland hamlet, and summer heat builds up quickly around the Route 110 corridor, where acres of office parking lots and roadways hold heat into the evening. Homes near those areas feel it, and air conditioners run long afternoon cycles in July and August. On the north side, the land rises toward West Hills County Park and Jayne's Hill, the highest point on Long Island, where wooded lots bring leaf and pollen buildup on outdoor units. In townhouse communities, condensers are often grouped tightly on small pads or tucked against walls, so they recirculate their own hot discharge air and struggle more on the hottest days.

Five Core HVAC Services in Melville, NY
K2 serves Melville's single-family neighborhoods and its condo and townhouse communities with heating, cooling and heat pump repair and installation.
1. Air Conditioning Diagnostics & 24/7 Emergency AC Repair
We repair central air in Melville homes and townhouses, from frozen coils in cramped closet air handlers to failed capacitors, leaking refrigerant lines and condensers overheating on crowded pads near the Route 110 corridor.
Common diagnostic calls include capacitor replacements, contactor cleaning, condensate drain clearing, fan motor replacements, and leak detection.
2. High-Efficiency Central Air Conditioning Installation
For Melville installations, we size equipment to the home, check that returns can move enough air, and choose condensers that fit tight townhouse pads and association guidelines while performing well on hot inland afternoons.
Sized strictly using ACCA Manual J load calculations to guarantee proper capacity without short-cycling or humidity problems.
3. Gas & Oil Furnace Repair & Seasonal Heating Tune-Ups
We fix gas furnaces in Melville colonials and newer townhouses, including ignitor and flame sensor failures, inducer motor noise, clogged condensate traps on high-efficiency units and blower problems that leave rooms cold.
Our mobile trucks carry universal hot surface igniters, flame sensors, draft inducers, and control boards for rapid single-visit repairs.
4. Hydronic Boiler Repair, Steam Systems & Combi-Boiler Upgrades
Older Melville ranches and capes often still heat with a boiler. We service oil and gas boilers, replace circulators, zone valves and relief valves, and fix baseboard loops that stay cold because of trapped air.
Servicing cast-iron oil and gas boilers, hydronic zone valves, circulator pumps, expansion tanks, and high-efficiency combi-boilers.
5. Cold-Climate Heat Pumps & Ductless Mini-Splits
Melville townhouses with original heat pumps are good candidates for modern cold-climate replacements that lean far less on electric strip heat. We also add heat pumps to single-family homes looking to cut oil or gas use.
Qualifying cold-climate heat pumps may be eligible for PSEG Long Island Clean Heat rebates, applied for through PSEG Long Island; confirm current terms at psegliny.com.
Ductless Mini-Split Installation in Melville
Ductless mini-split installation in Melville fits both kinds of homes here. In townhouses and condos, a compact wall unit can fix a loft, top-floor bedroom or converted den that the original closet air handler never served well, without opening finished ceilings. In single-family ranches and split-levels that heat with baseboard, a multi-zone system can bring cooling and efficient heat to bedrooms without attic ductwork. Outdoor unit placement matters in Melville's attached communities, so we look for a spot with proper clearance and confirm the location works with your association before installation.
Ductless mini-split installation: zones, costs and how it works →Housing Stock & HVAC Constraints in Melville
Melville's housing falls into two broad groups. Single-family neighborhoods off Sweet Hollow Road, Round Swamp Road and the streets around Old Country Road include 1950s and 1960s ranches, capes and split-levels along with 1970s and 1980s colonials and high ranches. Many of the older homes started with oil or gas boilers and baseboard heat, with central air added later through attic ductwork, while larger colonials more often have gas furnaces and a basement and attic split. The second group is the condominium, townhouse and 55-and-over communities built from the 1980s to the present. Many older townhouses were built all-electric, with a split-system heat pump, an air handler in a closet or attic and electric strip heat for backup. Newer communities more often use gas furnaces or high-efficiency equipment, but space for outdoor units is limited and usually controlled by the homeowners association.
Common HVAC Problems in Melville Homes
The most common calls from Melville townhouses involve original or second-generation heat pumps. Reversing valves stick, defrost controls fail so the outdoor coil ices over, and the system falls back on electric strip heat, which shows up as a sharp jump in the electric bill. Closet air handlers in finished units often have tight return openings, so airflow is restricted and coils freeze in summer. Condensate lines running through finished ceilings clog and leak into the unit below. In single-family homes, we see aging attic ductwork that leaks cool air into hot attics, ranches with one undersized return, and oil and gas boilers that need circulator, relief valve or expansion tank work. Split-level homes often have bedrooms that run hot because the upper level shares a single system with the lower floors. Wooded lots near West Hills bring clogged condenser coils.
Utility Coverage & PSEG Clean Heat Rebates in Melville
Melville homes and condos get electricity from PSEG Long Island, and National Grid provides natural gas throughout most of the hamlet. Owners of all-electric townhouses often ask about replacing old heat pumps with newer cold-climate models. Rebates are applied for through PSEG Long Island, and amounts and eligibility change, so confirm current terms at psegliny.com.
Local Presence in Melville, NY
From the shop we usually take the Long Island Expressway west to the Route 110 exit and work outward. Single-family streets east of Route 110, toward Dix Hills, and the neighborhoods off Sweet Hollow Road and Round Swamp Road on the west side are a regular part of our route. We also serve the condo and townhouse communities scattered along Old Country Road and near the expressway, where we work with homeowners to follow any association rules on outdoor equipment. The northern part of Melville, near West Hills County Park and the Northern State Parkway, is reached by staying on Route 110 north or taking Sweet Hollow Road. Pinelawn Road gives us another route in from the south.
Permits & Building Regulations in Town of Huntington
Mechanical permits are governed by the Town of Huntington Department of Engineering Services (100 Main Street, Huntington, NY 11743).
Melville is an unincorporated hamlet in the Town of Huntington, and condo owners may also need association approval before outdoor equipment changes. Permits are filed with the Town of Huntington Department of Engineering Services (100 Main Street, Huntington, NY 11743); K2 does not file town permits, so confirm the requirements with the building department before your installation is scheduled.
Nearby Towns We Serve
K2 also serves the towns around Melville. See our local pages for Plainview, Huntington Station and Dix Hills, or every town we cover on the Suffolk County service area page.
Frequently Asked Questions in Melville, NY
How long does it take K2 to reach Melville?
Melville is about 5 miles from our Deer Park shop, and the drive is typically 12 to 20 minutes using the Long Island Expressway and Route 110. Rush hour around the Route 110 office corridor can stretch that, so we give you a realistic arrival window when you call (631) 414-7141.
Why is my Melville townhouse electric bill so high in winter?
Many older Melville townhouses heat with a heat pump that uses electric strip heat as backup. If the heat pump has a defrost problem, low refrigerant or a failing reversing valve, the strip heat runs far more than it should, and the bill climbs. We test the heat pump and the backup heat to find what is going on.
Can I replace my condo's outdoor AC unit without HOA approval?
Most Melville condo and townhouse associations have rules about the size, location and appearance of outdoor equipment, so check with your board or management company first. We can give you the dimensions and specifications of the proposed unit so the association has what it needs to review the change.
Do I need a Town of Huntington permit for a new heat pump in Melville?
Heat pump and other HVAC equipment installations in Melville fall under the Town of Huntington. Permits are filed with the Town of Huntington Department of Engineering Services (100 Main Street, Huntington, NY 11743); K2 does not file town permits, so confirm the requirements with the building department before your installation is scheduled. Condo owners should also confirm association requirements before work is booked.
Why does my Melville split-level have hot bedrooms upstairs?
Split-levels often run all levels from one system, and the upper bedrooms gain heat through the roof while the thermostat sits on a cooler level. Undersized returns and leaky attic ducts make it worse. Options include balancing dampers, added returns, duct sealing or a ductless unit for the bedroom level.