Milton's Construction installs MRCOOL ductless mini-splits and DC inverter heat pumps in Farmingdale homes — authorized installer, permits handled, free estimate.
Most of the village Colonials and Capes near Farmingdale Main Street were built without central air and heated by baseboard electric or a single oil-fired system with minimal ductwork. Adding a conventional forced-air system to one of these homes means cutting soffits, punching through walls, and doing real structural damage for a result that often still heats and cools unevenly. A MRCOOL ductless mini-split system avoids all of that — the indoor unit mounts on the wall or ceiling, the refrigerant line runs through a small penetration to the outdoor compressor, and the room is comfortable within days of installation.
We are authorized MRCOOL installers. That matters because it keeps the manufacturer warranty intact and means the system is installed by technicians who know exactly how these units are specified and sized. We pull the necessary electrical permits — through the Village of Farmingdale Building Department or the Town of Oyster Bay depending on your address — and we handle every step of the installation in-house. Additions and in-law suites are natural fits for dedicated mini-split zones. So are older village homes that need efficient climate control without tearing up the interior. Call or text 631-741-0199 for a free written estimate.

The Colonials and Capes near Farmingdale Main Street represent some of the most common candidates for ductless mini-split installation on Long Island. Original baseboards and window units are expensive to run and uncomfortable to live with. Running traditional ductwork through these homes would mean compromising closets, ceilings, and wall cavities that were never designed for it. A multi-zone MRCOOL system can cool the downstairs living area, the upstairs bedrooms, and a finished attic all independently, each thermostat controlled separately, without touching a single soffit.
The DC inverter technology in MRCOOL heat pump units also means year-round comfort with a single system. These units heat efficiently in temperatures that would drop a conventional heat pump's output significantly, which matters on a Long Island winter. For a village home still running off oil baseboard or aging window units, the operating cost difference is real. We size every system based on the actual square footage and orientation of the rooms involved.


Any new addition, finished attic, or in-law suite in a Farmingdale home faces the same question: how do you heat and cool a space that has no connection to the existing system? In most cases, extending existing ductwork to a new addition is either impractical or too expensive relative to the result. A single-zone MRCOOL unit installed in the new space is the cleaner answer. It heats and cools that space independently, it does not stress an aging central system, and it can be installed as the addition is being finished rather than retrofitted later.
Because we are both the addition contractor and the MRCOOL installer, the two scopes are coordinated from the start. The wall penetration for the refrigerant line is planned into the framing. The electrical circuit is roughed in during the rough electrical phase. There is no back-and-forth between a builder and a separate HVAC company. One team, one schedule, one written estimate.
Yes. Any new electrical circuit for the compressor and the indoor units requires an electrical permit. Village of Farmingdale addresses file with the village building department; South Farmingdale addresses go through the Town of Oyster Bay. We pull the permit and schedule the electrical inspection as part of the installation.
Multi-zone MRCOOL systems can handle anywhere from two to eight indoor units off a single outdoor compressor, depending on the unit series and the BTU load of the home. For a typical Farmingdale Colonial or ranch, a two- to four-zone system covers the main living areas, bedrooms, and any addition or finished space. We size the system based on your actual square footage.
It can be, depending on the condition and layout of the existing ducts. In many mid-century ranches, the original ductwork serves the main floor adequately but has no way to reach a new addition or a finished space above. Adding a dedicated mini-split zone for those areas is often more cost-effective than extending old ductwork. We assess both options and give you a straightforward recommendation in the written estimate.
Get a free, no-obligation estimate for your project today.