HVAC Contractor in Newton, NJ

Family-owned, NJ-licensed (#19HC00108700), and just up the road — fast, honest HVAC service across Sussex County.

Constant Air Service is a family-owned HVAC company in Newton, NJ, serving Sussex County and the surrounding region since 1999. Our certified technicians install, repair, and maintain energy-efficient heating, cooling, and geothermal systems built for our higher-elevation winters and humid summers.

We size every system for your actual home, quote it before we do it, and stand behind the work — with 24/7 emergency service when you need it most.

Heating, cooling, and geothermal — installed and serviced by a local, licensed team.

Four steps to comfort done right the first time.

Newton sits at a higher elevation than most of New Jersey — colder, longer winters and real demand on heating systems. Sussex County’s older housing stock often carries duct and insulation quirks that a regional chain dispatching from an hour away can miss.

A locally based contractor who knows the towns, the building patterns, and the permit offices is positioned to size and install your system correctly the first time — and to get to you fast when it counts.

We provide residential and commercial HVAC across Newton and Sussex County: central AC installation and repair, gas and electric furnace service, geothermal heat pump systems, ductless mini-splits, seasonal maintenance, and 24/7 emergency repair. Licensed in NJ under HVACR Lic #19HC00108700.

Yes. When your AC fails on the hottest day or your furnace dies on a cold Sussex County night, our technicians respond around the clock. Call (973) 948-0680 anytime.

Yes — licensed by the NJ Division of Consumer Affairs as an HVACR contractor (#19HC00108700), family-owned and serving Sussex County since 1999, fully insured.

Newton and the surrounding Sussex County area within roughly a 15-mile radius — including Sparta, Hamburg, Ogdensburg, Sussex, Vernon, Hopatcong, Andover, and Lake Mohawk, plus parts of Morris and Warren counties.

Yes — financing is available through Hearth, so you can spread the cost of a new system or major repair. Federal tax credits may also offset 30% of a qualifying geothermal install.

Newton’s local HVAC team since 1999 — we answer the phone 24/7.