Air Conditioning Services
From central air to ductless mini splits, we install and repair cooling systems that hold up to humid summers along the Indian River.

Theresa homeowners and farm properties trust AC/DC Mechanical, LLC for dependable HVAC, plumbing, and electrical service.
We handle everything from furnace repair to electrical upgrades throughout Jefferson County.
Theresa sits along the Indian River near the old dam and grist mill site, surrounded by farmland and a mix of century-old village homes and rural properties stretching out toward Redwood and LaFargeville. As a trusted hvac contractor for this stretch of Jefferson County, AC/DC Mechanical, LLC understands the demands that come with older farmhouses, converted seasonal camps, and homes on well and septic systems.
Our team handles residential hvac services and commercial hvac services alike, from furnace and boiler repair in the village to walk-in cooler maintenance for a farm stand or small business off Route 37. We're also a licensed plumbing contractor and full electrician shop, so a single call covers heating, cooling, plumbing, and electrical needs without juggling multiple companies.
Whether you're dealing with a furnace that won't fire on a February morning or need an electrical panel upgrade for a barn or outbuilding, we bring the same dependable response every time.

Theresa's mix of older village housing and outlying farm properties means home systems get pushed hard, especially heating equipment during the long Jefferson County winter. Here's how we help keep things running.
From central air to ductless mini splits, we install and repair cooling systems that hold up to humid summers along the Indian River.
Local shops, farm stands, and small businesses in and around Theresa rely on us for commercial property maintenance, walk-in cooler service, and refrigeration services that keep product safe.
Furnace repair, boiler repair, and heating maintenance for homes that need to hold steady heat through a Jefferson County winter.
Theresa's character shows in its housing stock: sturdy older homes near the village center by the Indian River, working farms out along Sanford Corners Road and Route 27, and seasonal camps closer to the water. Each of these presents a different set of heating, cooling, plumbing, and electrical challenges, and we've serviced them all.
Homes near the old dam and mill pond often have original wiring and plumbing that needs updating to handle modern appliances and electric heat pumps. Farm properties stretching toward Redwood and Plessis frequently run on well water and septic systems, which means plumbing work here looks different than it does in a municipal system in Watertown.
We also see plenty of outbuildings and detached garages that need their own electrical service or heating source, a common request from Theresa's rural property owners.

Residents choose us because we understand rural Jefferson County properties as well as village homes, and we back that knowledge with licensed, responsive service.
Our emergency hvac services and emergency heating repair teams answer fast, because a furnace failure in Theresa during a January cold snap can't wait until morning.
As your local general contractor, plumber, and electrician team, we cover electrical wiring and rewiring, gas piping, water heater services, and general home repair services under one roof.
From well pumps to older farmhouse panels, we know the specific issues that come with Theresa's mix of village and country homes.
Between the Indian River valley's humidity, harsh winters, and a housing stock that spans generations, certain issues come up again and again for local property owners.
Our technicians carry the parts and training needed to handle these situations on the first visit whenever possible, minimizing the wait for homeowners who don't have backup heat or water.

Whether your furnace is struggling to keep up with a cold snap off the Indian River or your farm property needs an electrical panel upgrade before winter, AC/DC Mechanical, LLC is ready to help. Reach our team directly at (315) 778-3905 or request service online, and we'll get a technician scheduled for your Theresa property.
