Ductless Air Conditioners in Oakville

Serving Burlington, Hamilton, Milton, Mississauga And Every Town In Between

A ductless air conditioner, also called a mini-split system, is a cooling unit that works without ductwork. It has two parts: an outdoor compressor and an indoor air handler, connected through a small hole in the wall. Ductless air conditioners Oakville homeowners use are a great fit for home additions, sunrooms, older homes, finished garages, offices, and any space where traditional ductwork is not practical.

At Appleby Systems, we have been helping Oakville and Burlington homeowners stay comfortable since 1967. Whether you are adding a sunroom, finishing a basement, or dealing with an older home that was never wired for central air, a ductless mini-split is often the simplest, most cost-effective solution we can offer you.

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Benefits of Choosing a Ductless Cooling System

Ductless air conditioners give you targeted cooling without the mess and expense of installing ductwork.

Here is what makes them worth considering:

They run quieter than even the quietest ceiling-mounted fans and take up far less space, so you barely know they are there.

Remote control operation makes adjusting the temperature simple, whether you are on the couch or heading to bed.

Residential ductless air conditioning systems are more efficient than traditional home comfort systems because they avoid the constant start/stop cycles that drive up energy bills and wake you up on a hot summer night.

Most mini-split systems also provide heating in winter, making them a year-round comfort solution, not just a summer fix.

Ductless AC cooling is also useful for additions, garages, older homes and spaces where extending central air is not practical.

One of the biggest drawbacks of standard ductwork air conditioning is energy loss. According to Natural Resources Canada, duct leakage can account for more than 30% of a home's total cooling energy use. With a ductless system, there are no ducts, so none of that energy goes to waste.

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Couple relaxing in a living room with a wall-mounted ductless air conditioner in an Oakville home

Installation Services for Mississauga, Hamilton, and Milton

Our ductless AC installation service covers the full Halton and Hamilton region. Whether you are in Oakville, Burlington, Mississauga, Hamilton, Milton, or Dundas, our team can visit your home, assess your space, and recommend the right system for your needs.

We at Appleby Systems have been serving these communities since 1967, and we know how the climate here works. Summers in the greater Hamilton and Halton area can get humid and unpredictable, and a properly sized ductless system keeps your home comfortable without running up your energy bills.

All installations are carried out by TSSA-licensed technicians who are members of the Heating, Refrigeration and Air Conditioning Contractors of Canada (HRAC). We are also proud to hold an A+ rating with the Better Business Bureau.

Comparing Ductless AC to Central Air Systems

If you are weighing your options, here is how ductless and central air conditioning compare for most Ontario homes.

	Ductless Mini-Split	Central Air Conditioning
Ductwork required	No	Yes
Best for	Additions, older homes, single rooms	Whole-home cooling with existing ducts
Energy efficiency	Higher (no duct loss)	Lower if ducts are old or leaky
Installation disruption	Minimal (8 cm wall hole)	Significant if ductwork needs to be added
Zoning control	Yes, room by room	Limited without additional equipment
Heating capability	Yes, most models heat and cool	Cooling only (separate furnace needed)
Noise level	Very quiet indoors	Moderate, depending on system age

Central air is a great solution if your home already has ductwork in good condition. If it does not, or if you are cooling a specific room or addition, a ductless system is almost always the more practical and cost-effective choice. For many Ontario homes, ductless HVAC is a flexible option when full central air is not needed.

Not sure which is right for your home? Give us a call and we will walk you through the options.

Maintenance and Repair for Ductless Units

Like any home comfort system, a ductless air conditioner performs best when it gets regular attention. The good news is that ductless AC maintenance is straightforward and far less involved than maintaining a full ducted system.

What regular maintenance includes:

Cleaning or replacing the indoor unit's air filter every one to two months during active use

Checking the outdoor compressor for debris, especially after storms

Inspecting the refrigerant lines for damage or condensation

Testing the remote control and thermostat settings

An annual professional service check before the cooling season begins

If your ductless unit is not cooling properly, making unusual noises, or showing an error code on the display, our ductless AC repair team can diagnose and fix the problem quickly. We carry parts for the most common mini-split brands and can often resolve issues in a single visit.

To keep your system running at its best, book an annual AC maintenance visit with Appleby Systems before summer arrives.

How Disruptive is Installation?

Ductless AC installation is usually less disruptive than installing a traditional central air conditioning system because it does not require new ductwork.

A ductless mini-split air conditioner has two main parts:

The outdoor compressor
The indoor air unit provides cooling in the summer

During ductless mini split air conditioner installation, a technician creates a small conduit between the outdoor unit and the indoor unit. This usually only requires an 8 cm hole through the wall.

This makes ductless air conditioners a practical option for older homes, home additions, sunrooms, finished garages, offices, and rooms where extending ductwork is not cost-effective. A ductless mini split air conditioner can often be installed with minimal disruption, making it a practical choice for Oakville and Burlington homeowners who want targeted cooling without adding new ductwork.

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Schedule Your Ductless AC Installation

Getting started is straightforward. Call us, request a quote online, or send us a message and we will arrange a time to visit your home at no charge. Our technician will assess your space, answer your questions, and recommend the right ductless AC installation for your room, addition, or older home.

Appleby Systems has been keeping families comfortable in Oakville, Burlington, and the surrounding communities since 1967. We are a family-owned company, and we treat every home we work in the same way we would treat our own.

Ready to stay cool this summer?

Request a Free Quote | Call (905) 825-1893 | Request a Service

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Frequently Asked Questions

What are ductless air conditioners?

Ductless air conditioners, also known as mini-split systems, provide cooling without the need for ductwork. They use an outdoor compressor and an indoor air-handling unit, making them a flexible option for rooms, additions, older homes, and spaces where ductwork is not practical.

How do ductless air conditioners work?

Ductless air conditioners work by moving heat from inside your home to the outdoor unit through refrigerant lines. The indoor unit blows cool air into the room, while the outdoor unit releases heat outside to keep the space comfortable.

Are ductless air conditioners energy efficient?

Yes, they are energy efficient because they allow for zoned cooling. Residential ductless air conditioning systems can cool specific rooms instead of wasting energy on areas you are not using.

Where do ductless air conditioners work best?

They work well in sunrooms, finished basements, garages, home additions, offices, and older homes without ductwork. They are also useful when you want better ductless AC cooling in one specific room.

Do ductless air conditioners need regular maintenance?

Yes, regular maintenance is needed to keep them working efficiently. Cleaning the filters, checking the outdoor unit, and booking a professional service before summer can help reduce repair issues and keep ductless air conditioners Oakville homeowners rely on running properly.