Air conditioning installation and replacement across Suffolk County.

You have been told you need a new system and you do not know whether that is true. You have had two companies out and been given two different stories. The system is old and has been repaired twice already this summer. The upstairs has never cooled properly and nobody has been able to explain why. You have heard that the refrigerant is being discontinued and you cannot tell if that is a real reason to act or a sales line.

That mistrust is reasonable. The refrigerant situation is real, but it has been used as a sales pitch by people who do not explain it honestly. The next section states exactly what is true.

The job starts with a visit to look at the house and the existing system — what is there, where the duct runs, where the air handler sits, what the equipment is. We do a load calculation and have an honest conversation about what the duct system can and cannot carry, because a new condenser bolted to bad duct fixes nothing.

On the install: we recover the refrigerant from the old system, remove the old equipment, braze the line set under nitrogen so the inside of the pipe stays clean, pressure-test, pull and hold a vacuum to boil out any moisture, and weigh in the charge to the manufacturer's specification on a scale — not by guess. We commission the system, take the readings, and walk the homeowner through the thermostats and controls before leaving. Travis Hart is on the job.

The recovery, evacuation, and charging steps are where installs are most often rushed, and a system charged by guess instead of by weight and reading will underperform for its entire life. We do them properly because they are the difference between a system that lasts and one that does not.

Sizing comes from a load calculation — square footage, insulation, window area and orientation, air sealing, ceiling height, and duct location — and not from a rule of thumb about tons per square foot or from copying whatever was there before. We measure the existing duct before assuming it can carry a larger system.

Oversizing in a humid coastal climate does exactly the wrong thing: the system satisfies the thermostat fast, short cycles, never runs long enough to pull moisture out of the air, and leaves a house that is cold and clammy. A right-sized system runs long enough to dehumidify, which is what comfort actually is on Long Island in July.

Post-war houses here were mostly built for hot water baseboard, steam, or oil-fired heat, with no ductwork at all. Central air was retrofitted later, and the duct went into an attic or a crawlspace because that was the only place it fit.

Replacing the outdoor unit on a retrofit like that does not fix a duct system that was undersized on the day it went in. A new condenser bolted to bad duct is the single most common way a homeowner spends a lot of money and stays uncomfortable — the new equipment is fine and the house is still hot upstairs.

Houses with baseboard or steam heat and no ducts at all have realistic options in general terms, including ductless mini-split installation and service, and the decision comes from looking at the actual house, not from a web page. We come out, see what is there, and lay out the honest options for that building.

South Shore salt air shortens the life of an outdoor coil. Mounting position, clearance, drainage under the unit, and rinsing the coil with fresh water matter more here than they do inland. Attic air handlers over finished ceilings need the condensate handled properly — a primary drain with a trap, a secondary pan, and a float switch that shuts the system down instead of letting it find the drywall. On low-lying yards and flood-prone South Shore properties, the height an outdoor unit is set at is a real decision here, not a detail.

Replacing makes sense when the compressor has failed, when a coil or line set leak cannot be reached without opening walls or ceilings, when the same system has needed repeated repairs, or when the house has never cooled properly and the system is at the end of its life anyway. Replacing does not make sense simply because a system uses R-410A.

We will tell someone their system is worth repairing even when that is the smaller job. That path starts on the AC repair page. When the duct is the actual problem, we say so — and ductwork may be the work that actually fixes the house, not a new condenser. For houses considering a single system that heats and cools, the heat pump installation and service page lays out that option.