Heat pumps stopped being an experiment here years ago. The units we install put out full rated heat at 5°F, and Staten Island's coldest design days are around 15°F. That's real margin. We have customers in Great Kills, Annadale, and Westerleigh whose gas backup hasn't fired in three winters.
Your house decides the system type. Homes with sound ductwork usually get a ducted heat pump that reuses the existing trunks. It's often a straight swap when the old AC dies — a heat pump is the same box, plus heating. Homes without ducts get Mitsubishi mini-splits: heads sized per room, lines routed clean, no plaster casualties. And if your gas boiler is healthy, a dual-fuel setup keeps it as backup for the coldest nights.
Every install starts with a load calculation — never 'same size as the old one.' You get a written quote with model numbers and an AHRI certificate. Pricing is net of current Con Edison rebates. Shore homes get coastal specs as standard: coated coils, stainless hardware, and elevated mounting in flood-mapped blocks.
Heat pump installs fail on sizing and siting, so that's where our process lives. Load calculations account for the borough's actual housing — drafty pre-war walls in St. George, tight 2000s construction in Annadale. Siting accounts for its actual weather: units on brackets in flood-mapped Midland Beach blocks, coastal coatings near salt water, snow clearance everywhere. Defrost drainage gets planned, not discovered in February.
The paperwork is ours to carry: Con Edison Clean Heat rebate filing, NYC DOB permits, and manufacturer registration so your warranty actually exists. And the quote always shows the alternative — a straight AC replacement or a dual-fuel design — because a recommendation you can't compare isn't a recommendation.