“They put a mini-split in our third-floor Victorian bedroom. No ducts needed, and it heats and cools the whole space quietly.”
R
ResidentSt. Marys, ON
Services
Ductless AC Installation and Replacement, Handled End to End
Running new ductwork through a century limestone home is rarely an option, and St. Marys Heating & Cooling solves that with ductless mini-splits. Whether you are cooling a third-floor bedroom in a Victorian near the quarries or heating a converted carriage house outside Perth South, we size the unit to the space, route line sets cleanly, and mount it level.
Why Homeowners Call Us
Need cooling or heat where there are no ducts?
From heritage bedrooms to converted outbuildings, we install ductless mini-splits sized for the space, with clean line sets and no new ductwork.
Right-Sized for the Room
An oversized mini-split short-cycles and never dehumidifies properly. We match the BTUs to the space, whether it is a small Victorian bedroom in town or a large converted barn near Perth South.
Clean, Heritage-Sensitive Installs
Line sets routed cleanly, holes sealed, and the outdoor unit mounted level on a pad that drains. We work carefully in limestone homes where wall finishes and trim matter to you.
Heating and Cooling in One Unit
Modern cold-climate mini-splits pull heat from the air well below freezing, so one quiet unit handles a heritage bedroom or converted outbuilding year-round, even through a Perth County cold snap.
FAQ
Ductless AC Installation in St. Marys: Common Questions
How much does ductless AC installation cost?
Ballpark, homeowners usually invest between about four and six thousand for one zone, more when electrical upgrades or multiple heads are needed. The in-home quote is always free.
How long does a ductless AC installation take?
A single-zone install typically takes one day, start to finish. Multi-zone projects usually run one to two days, depending on how many heads and how far the lines travel.
Should I repair or replace my mini-split?
We diagnose before we recommend. Many ductless service calls end in a straightforward repair, and when a good system has years left, we would rather fix it than replace it.
Reviews
What St. Marys Homeowners Say
Real feedback from neighbours we've helped stay comfortable year-round.
“Our AC was struggling with the summer humidity. They found a dirty coil, cleaned it, and did not push a new unit.”
R
ResidentEmbro, ON
“Switched our limestone home off an aging boiler to a heat pump. The house has never been more comfortable through winter.”
C
CustomerStratford, ON
We Can Help Solve Your Ductless AC Installation Needs
Call today or request your free quote online. We will measure, recommend, and schedule your ductless installation around what works for your family.