Year-round comfort built for Nantucket homes.
AIRTECH LLC keeps the island warm in February and cool in July. Heating, cooling, heat pumps, and 24/7 emergency service from Sconset to Madaket.
Full-service HVAC, sized for island homes.
Heating
Furnace install, boiler service, and emergency repairs to get your heat back fast during a Nor'easter.
Cooling & AC
Central air and seasonal tune-ups so summer rentals stay comfortable all season long.
Mini-Split Install & Service
Ductless mini-split installs, repairs, and tune-ups — quiet, efficient zoned comfort for any room.
Heat Pumps
High-efficiency heat pumps engineered for coastal climates.
Maintenance Plans
Twice-a-year tune-ups, priority scheduling, and discounted repairs for year-round and seasonal homes.
The island's trusted HVAC team.
15+ years in the trades. Whether it's a Sconset cottage or a Cliff Road compound, we treat every job like it's our own house.
We live here too.
No mainland dispatch, no ferry delays. Our trucks are on-island, every day of the year.
Built for salt air.
We spec equipment that survives coastal corrosion and size systems for drafty old shingled homes.
Fair and competitive pricing.
Honest, upfront estimates with no hidden fees. We keep our rates reasonable because we live here too.
Real installs from around the island.
Trusted by Nantucket homeowners.
Real reviews from real islanders — no stock photos, no mainland call centers.
"They replaced our old oil system with a Bosch heat pump in one day. House stayed warm through that February cold snap. Professional, clean, and genuinely nice guys."
"Furnace died at 10 PM on a Saturday in January. Keenen answered on the second ring and was here in 45 minutes. Didn't try to upsell me — just fixed it."
"They sized our ductless system right, ran the lineset clean, and the unit is whisper quiet. Guests love it. Already booked them for our other property."
"Been on their maintenance plan for three years. They show up every spring and fall like clockwork. As a seasonal homeowner, that reliability means everything."
Serving every corner of the island.
Get a quote in one tap.
Tell us what you need. Send it as a text or hit call — a real islander answers, usually within the hour.
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No heat? No A/C? Call us now.
24/7 emergency response across Nantucket. A real person picks up — even on Christmas Eve.