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Ductless AC Installation in Vermont

Vermont summers have changed. The 90°F days that used to last a week now last three to four weeks, and homes built without air conditioning are increasingly uncomfortable. Ductless mini-split systems are the most practical AC solution for Vermont homes without existing ductwork – no major construction, no duct runs through finished walls, and the same system provides heat in shoulder seasons.
At Langlois Plumbing, Heating & AC, we install Mitsubishi and Daikin ductless systems throughout Chittenden County. We’re a Mitsubishi Diamond Elite dealer, which means the extended 12-year warranty applies to every Mitsubishi installation we complete.

A ductless mini-split air conditioning system achieves SEER2 ratings of 18–33 depending on the model - significantly higher than central AC systems (typically 14–20 SEER2). Ductless systems avoid the 20–30% energy loss associated with forced-air ductwork in unconditioned spaces. A standard 9,000 BTU single-zone mini-split installation in Vermont is typically completed in four to six hours without ductwork modification.

Why Ductless for Vermont Homes

Vermont homes built before 1980 were rarely designed with central AC ductwork. Adding traditional ductwork means opening walls, running sheet metal through finished spaces, and installing a furnace or air handler the home doesn’t need. A ductless system installs with a single 3-inch hole through an exterior wall, a line set connecting the indoor and outdoor units, and conduit for power – typically without opening walls or ceilings.

Cooling and Heating Year-Round

Every mini-split we install is a heat pump – it cools in summer and heats in shoulder seasons (and through Vermont winters for Hyper Heat models). For a sunroom, bedroom addition, or home office, a mini-split is often the only practical solution for year-round comfort.

Frequently Asked Questions

One indoor unit per zone provides independent temperature control for that space. Open-plan first floors
often need only one unit. Multi-story homes typically need one per floor. We calculate the BTU requirement
for each zone and recommend the appropriate number of units.

Modern mini-split indoor units operate at 19–32 dB - quieter than a library (40 dB) and much quieter than a
window AC unit. Outdoor units are 45–55 dB, comparable to a refrigerator.

Yes. Mini-split cooling mode removes humidity as part of the cooling process, the same way central AC
does.

Yes. Ductless units are well-suited for detached garages, workshops, and outbuildings. Vermont's climate
makes a heating/cooling mini-split especially practical for a four-season workspace.

Schedule Your Free AC Assessment

Call (802) 233-0790 or contact us online to schedule a free, no-pressure ductless AC assessment. We’ll identify the right number of zones, the right BTU capacity for each, and show you system options with honest cost and warranty comparisons.
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