Heights Plumbing, Heating & Cooling designs, installs and services ductless mini split systems across Northern New Jersey. They are the practical answer for the many homes here that were built before central air was standard: older capes and colonials with plaster walls, finished attics and basements, sunrooms, additions and condo units where ductwork was never an option.
We size and lay out each system ourselves — our mechanical engineer runs the room-by-room load and our electrical engineer covers the wiring, so the whole job stays with one company. Licensed and insured under NJ HVAC Lic. #197400, with upfront pricing and Synchrony financing available.

No Ductwork? Window Units Are Not Your Only Option
A lot of Northern New Jersey housing stock predates central air. In a 1920s colonial or a story-and-a-half cape, there is often nowhere to run supply and return trunks without losing closets, dropping ceilings or boxing in a stairwell. So people live with window units that block the view, leak air all winter, and still leave the finished attic at 85 degrees.
The other version of this problem is the room that central air never reached — a converted garage, a bonus room over the garage, a finished basement, or an addition that got tied into a duct system already at its limit. Adding a mini split zone solves that room without touching the rest of the house.
What Our Ductless Mini Split Service Includes
A ductless system pairs an outdoor condenser with one or more indoor heads mounted on a wall, in a ceiling cassette, or as a slim concealed-duct unit tucked into a soffit. Refrigerant lines, a condensate drain and control wiring run between them through a three-inch opening, so installation is far less invasive than duct. Each head is its own zone with its own thermostat, so you are not cooling empty rooms.
We do the design work before quoting: a load calculation per room, head placement that accounts for furniture and throw distance, a line set route that keeps the exterior tidy, and a plan for condensate — including a pump when gravity drainage is not available. On install day we mount the equipment, run and evacuate the line sets, handle the electrical ourselves, then commission each zone and show you how the controls and filters work. We repair and maintain ductless systems too, including units we did not install.
Signs a Ductless Mini Split Makes Sense for You
- Your home has no ductwork at all
- Window units are your current cooling plan
- A finished attic or basement stays uncomfortable
- An addition or sunroom never got tied in
- A condo or apartment restricts outdoor equipment
- One room runs far hotter than the rest
- You want to cool only the rooms in use
- Running new duct would mean losing ceiling height
Noticing any of these? Call (201) 245-7772 or request service online. Same-day appointments across North Jersey.
Our Ductless Mini Split Process
Walk the space with you
We look at each room you want conditioned, where the outdoor unit can go, and how the line sets can be routed with the least visual impact.
Load calculation and zone design
Our engineer sizes each head to its room and selects a single-zone or multi-zone outdoor unit that matches the total. Oversized heads short-cycle and leave rooms humid.
Proposal and approval
You get a layout, equipment options and a firm price. Nothing starts until you approve it — that is No Worries Pricing.
Installation
We core the wall, mount the heads and condenser, run and evacuate the line sets, set up condensate drainage or a pump, and complete the electrical with our own team.
Commission and demonstrate
We verify charge and airflow on every zone, then walk you through the remotes, the filter cleaning and the heating mode if the system is a heat pump.
Ductless Options We Offer
Single-zone systems
One outdoor unit, one indoor head. The simplest and least expensive way to fix one problem room, a home office or an addition.
Multi-zone systems
One outdoor unit serving several indoor heads, each with its own control. A common approach for whole-home cooling in a house with no ducts.
Wall-mounted, ceiling cassette and floor-mount heads
Different mounting styles for different rooms. Cassettes work well in drop ceilings; floor units suit rooms with limited wall space or knee walls.
Concealed ducted mini split air handlers
A slim unit hidden in a soffit or closet feeds two or three rooms through short duct runs, so you get zoned comfort without a visible head in every room.
Heat pump mini splits for year-round use
Most ductless systems both cool and heat. Cold-climate models keep useful output well down into a New Jersey winter, which makes them a real supplement to a furnace or boiler.
Ductless repair and maintenance
Filter and blower wheel cleaning, condensate pump service, refrigerant diagnosis and control board issues — on any brand, including systems installed by others.
Why Choose Heights for Ductless Mini Splits
- Family Owned & Operated: A family business means more personalized service than you get from big chain providers.
- 56 Years of Industry Experience: Over 56 years of combined industry experience across plumbing, heating and cooling.
- Licensed & Insured: NJ HVAC Lic. #197400 and NJ Plumbing Lic. #1221100. Fully insured for residential and commercial work.
- Engineers On Staff: Our own mechanical and electrical engineers design systems and handle wiring, so you don’t need a second contractor.
- Same-Day Service: Schedule with us and we’ll provide service within 24 hours, arriving on time as scheduled.
- No Worries Pricing: Straightforward pricing with no surprise fees or up-charges. You know what you’re paying before we start.
Ductless Mini Splits Across Bergen, Essex & North Jersey
We provide ductless mini splits from our offices in Fair Lawn and Hillsdale to every municipality in Bergen County and Essex County, including:
We also serve Sussex County, Passaic County, Warren County, Morris County, Hudson County, Union County, Hunterdon County, Somerset County, Middlesex County, Mercer County.
Ductless Mini Splits FAQs
How many indoor heads do I need?
It depends on the layout and how open the floor plan is, not just the number of rooms. Open areas can often be covered by one well-placed head, while bedrooms behind closed doors usually need their own. We determine it with a room-by-room load calculation.
Do mini splits heat as well as cool?
Most do. They run as heat pumps in reverse, and cold-climate models hold useful capacity well below freezing. Many Northern New Jersey homeowners use them for most of the shoulder season and lean on the furnace or boiler in deep cold.
Are they noisy?
Indoor heads are quiet — typically quieter than a refrigerator at low fan speed. The outdoor condenser makes some noise, which is worth considering when we pick its location relative to bedroom windows and a neighbor’s property line.
Can I install one in a condo or high-rise?
Often yes, and it is a common solution in buildings in towns like Fort Lee and Edgewater. It depends on where the outdoor unit or condenser can be placed and what your building association allows. We will look at the site and tell you what is feasible before you go to the board.
How much maintenance do they need?
The washable filters in each head should be cleaned every month or two during heavy use, and the blower wheel and drain pan need periodic professional cleaning. Skipping that is the main cause of weak airflow and musty odors in ductless systems.
Is ductless cheaper than adding central air?
Often, in a home with no existing ductwork, because you avoid the construction cost of running duct. In a home that already has good ducts, central air is usually the more economical route. We price both when both are realistic.

