MRCOOL ductless mini-splits and heat pumps in Central Islip, NY — authorized installer, free estimate. Call 631-741-0199.
A large share of Central Islip's housing was built without central ductwork — the ranches and Capes from the fifties and sixties relied on oil baseboard or electric heat, and window units handled cooling. MRCOOL ductless mini-split systems are a direct answer to that situation: efficient, zoned heating and cooling with no ductwork required.
Milton's Construction is an authorized Mr. Cool installer. We size the system to the house, handle the electrical work, mount the indoor and outdoor units, and commission everything properly. When we're also building an addition or finishing a room, we integrate the HVAC into the project from the start so there are no afterthought fixes.

Central Islip sits inland — no coastal salt air, good for outdoor unit longevity — but Suffolk County summers are humid and winters run cold enough that a heat pump needs to perform efficiently at low temperatures. MRCOOL DC inverter heat pumps are rated for heating output well below freezing, which makes them viable as a primary heating source or a supplement to existing baseboard heat.
For additions and in-law suites where running new ductwork would mean major disruption, a ductless mini-split is the cleanest solution. One outdoor unit can serve multiple indoor heads, so a two-bedroom in-law suite gets independent zone control without a separate system.


HVAC installations in Central Islip that involve electrical work — which includes every mini-split installation — require a permit from the Town of Islip. We pull the permit, handle the electrical rough-in inspection and get the system properly documented.
A single-zone MRCOOL system installed in Central Islip typically runs in the three-to-five thousand dollar range depending on capacity and installation complexity. Multi-zone systems with two or three indoor heads run higher. A free written estimate gives you the exact number for your home.
Yes, if it's sized correctly. MRCOOL DC inverter heat pumps maintain effective heating output well below freezing. For older homes with existing oil or electric baseboard, many homeowners use the mini-split as primary heat and keep baseboard as backup. We size the system based on your home's actual heat load.
Yes. The electrical work required for a mini-split installation is permitted through the Town of Islip. We handle the application and all required inspections.
Absolutely, and that's often the right call. When we're building an addition in Central Islip, we plan the HVAC as part of the project from the start — rough-in locations, dedicated circuits, outdoor unit placement — so everything is clean and code-compliant.
Get a free, no-obligation estimate for your project today.