Air Conditioning Services
Our team installs, repairs, and maintains central air systems and ductless mini split units, so your home stays cool through humid North Country summers without straining an aging system.

From Fort Drum to the Thousand Islands shoreline, AC/DC Mechanical, LLC is the HVAC contractor Jefferson County calls for heating, cooling, plumbing, and electrical work.
Jefferson County stretches from the Black River Valley to Lake Ontario's shoreline, and that variety means no two homes have the same needs. AC/DC Mechanical, LLC handles it all: furnace services, air conditioning repair, water heater services, plumbing repair, and electrical services for households and businesses throughout the county.
We know winters here don't play around. When temperatures drop off Lake Ontario or a lake-effect band rolls through, our emergency heating repair and emergency hvac services keep your family warm and your pipes from freezing.
We also support commercial property maintenance for the county's shops, restaurants, and offices, from routine commercial hvac services to refrigeration repairs that can't wait until morning.

Every job starts with understanding the building in front of us, whether it's a farmhouse outside Adams, a lake cottage near the St. Lawrence, or a duplex a few blocks from Public Square in Watertown. Below are the core services our team provides throughout Jefferson County.
Our team installs, repairs, and maintains central air systems and ductless mini split units, so your home stays cool through humid North Country summers without straining an aging system.
Restaurants, breweries, and retail spaces across the county rely on us for commercial hvac services and refrigeration services that keep coolers running and dining rooms comfortable.
From furnace repair to boiler repair and heat pump services, we keep Jefferson County homes warm through long winters with heating installation and maintenance built for this climate.
Jefferson County covers a lot of ground, and our trucks cover it too. We work along the I-81 corridor connecting Watertown to Fort Drum, out Route 3 toward the Thousand Islands, and down Route 12 through the Black River Valley toward the Lewis County line.
That range means we've serviced everything from century-old homes near the county's small villages to newer construction built for military families relocating to Fort Drum. We've also worked on seasonal camps along Lake Ontario and the St. Lawrence River, where systems sit idle for months and need extra attention before the first weekend of the season.
Understanding this geography helps us diagnose problems faster, whether it's a furnace that's been fighting lake-effect wind or a well pump that's struggled through a dry summer.

Homeowners and business owners across the county pick us for the same reasons, no matter which town they're calling from.
As your HVAC contractor, plumbing contractor, and electrician all in one, we cut down on the number of vendors you need to manage for home repair services or a full remodel.
Distance isn't an excuse for a slow callback. We schedule routes efficiently so homes from Cape Vincent to Carthage get the same attention as those closer to our Watertown shop.
Our technicians are licensed and trained for residential hvac services, general contracting services, and electrical repair, and we stand behind every job with clear pricing and real accountability.
Jefferson County's mix of old farmhouses, lake cottages, and newer builds near Fort Drum creates a few recurring issues we see on service calls throughout the year.

Whether you're near the Black River in Watertown, a farmhouse outside Antwerp, or a cottage on the St. Lawrence, AC/DC Mechanical, LLC is ready to help with heating, cooling, plumbing, and electrical work you can count on. Call our Watertown shop today and get a technician scheduled for your part of the county.
