Last updated: July 2026
Cool Any Room — No Ductwork, No Compromise
Ductless mini-split systems cool individual rooms or zones with no ductwork required. Perfect for older Calgary homes, additions, garages, and sunrooms where running traditional ducts isn't practical or cost-effective.
When Ductless Is the Right Answer
Most Calgary homes built before 1980 have ductwork sized for heating only — running central AC through that system can cause pressure problems, poor airflow, and expensive duct modifications. A ductless mini-split bypasses all of that. The indoor head unit mounts on the wall, connects to an outdoor compressor through a small penetration in the wall, and delivers cooling (and heating in heat-pump mode) exactly where you need it.
- No ductwork required — installs in a day
- Individual zone control — cool only the rooms you're using
- Heat pump mode provides heating down to −25°C on cold-climate models
- Quiet indoor units — 19–26 dB at low speed
- SEER ratings of 20–30+ — significantly more efficient than window units
Single-Zone, Multi-Zone, or Multi-Split
Single-Zone Mini-Split
One outdoor unit connected to one indoor head. Best for a single room, addition, or garage that needs independent climate control. Simplest installation, lowest cost, easiest to service. Ideal starting point for most Calgary homeowners.
Multi-Zone Mini-Split
One outdoor unit connected to 2–5 indoor heads — each in a different room or zone. All zones run off one compressor with individual room control. More efficient than multiple single-zone units when cooling several areas simultaneously.
Ducted Mini-Split
A compact, quiet air handler installed in a ceiling cavity connected to short duct runs in each room. Provides the invisible install of a central system with the efficiency and zoning flexibility of a mini-split. Good for renovations where aesthetics matter.
The Perfect AC for Your Condo, Office & More
Ductless air conditioning systems have become increasingly popular over the years as they offer an efficient and affordable way to keep homes cool during hot summer months. This makes them a great choice for homeowners who want to control the temperature in different parts of their house separately.
Hot flashes are a reality for many. The instant cooled air from your close-to-the-bedside, so-quiet-you-don't-even-know-it's-there ductless unit drapes you or your partner in a shroud of comfort.
What Is a Ductless Mini Split AC?
You guessed right — air conditioning without ductwork. With a ductless air conditioner system from Alberta Indoor Comfort, you don't need traditional furnace ducting to get your cooling. Whether you live in a new home, condo, townhouse, an older home without ductwork, or are simply adding or converting a room or space, the ductless mini split is a great way to add cooling (or even heating) to get complete year-round climate control in a specific area of your home. Ductless air conditioning is a great and efficient way to enhance your comfort, no matter what challenges your space presents.
Where to Locate Ductless System Indoor Units?
Ductless systems are truly the Swiss knife or Leatherman tool of the HVAC industry: whatever you can think of, ductless is likely able to deliver. A great solution for all, it is particularly beneficial for older homes, sunrooms, garages, man-caves and work rooms, hot and cold spaces, renovations and additions, attic and basement conversions, condos, townhomes, apartments and businesses. It's also great for reducing cooling costs for empty nesters and single-owner homes.
For too long, people who had small homes or apartments, or homes without ductwork, had to suffer with window air conditioners and fans to keep cool in summer. But consider that a ductless mini split air conditioner can keep you as cool and comfortable as a central air unit at a fraction of the installation cost. Alberta Indoor Comfort (previously Sears) is committed to providing Calgary, AB residents with cost-effective ductless mini split services. Call today!
Comfort & Efficiency You Can Trust
When it comes to choosing a company for your ductless air conditioning needs, Alberta Indoor Comfort stands out for several reasons. First, we have a team of highly skilled and experienced technicians who are trained to handle all types of ductless AC installations. We use only the best quality equipment and materials, ensuring that our clients get the most value for their money. Additionally, we offer competitive pricing and transparent pricing options, so our clients can make informed decisions about their investment in their home comfort.
At Alberta Indoor Comfort, we understand that every home is different, and that's why we take a personalized approach to our ductless AC installation services. Our team works closely with clients to understand their unique cooling needs and recommend the best solution that fits their budget and lifestyle. We also provide ongoing support and maintenance services to ensure that our clients' ductless AC systems continue to operate at peak efficiency.
Why Install a Ductless Mini Split Air Conditioner?
Small homes and apartments without a lot of space, and homes that never had ductwork built in, can enjoy a ductless mini split AC system — and here's how.
Saves Energy
Energy escapes through ducts no matter how well sealed they are. You can lose up to 30% of your energy through ducts, which makes the ductless system more efficient.
Makes You Safer
Having a window unit gives intruders easy access to your home. A ductless mini split air conditioner means no more open windows, thus keeping you safer.
Better Flexibility
Let's say you want to cool different rooms independently from one another — a ductless mini split system lets you do that, where you're stuck with the same temperature for every room with a central AC unit.
10 Best Reasons to Choose a Ductless AC System
1. Ductless vs. Portable or Window "Shaker" AC
Choose a ductless air conditioner for efficiency, noise, aesthetics and low maintenance. Get that bulky, space taking, view-obstructing, noisy AC unit out of your bedroom or window for good! A ductless AC system offers a sleeker appearance, remarkable efficiency (saving you money), unparalleled quietness and comfort, and maintenance-free operation.
2. How Do Ductless AC Systems Work?
Ductless units come either as a single zone (one inside unit with one outdoor condenser) or multi-zone systems (multiple inside units connected to one outdoor condenser). Whether you want just cooling or cooling and heating, its flexibility is enormous. Ductless systems use the same process for cooling as a typical whole-home central air conditioning system — however, instead of using your furnace to blow cold air into your whole home through the ducts, the ductless unit blows cooled air directly into one space.
3. Lower Your Bills
A ductless system can help you greatly reduce your monthly energy bills because it uses substantially less energy (due to a high SEER rating) and has no losses through traditional HVAC ductwork; this means your bills will drop dramatically! On average, you can save 30% to 40% per month on utility bills by switching to a ductless air conditioner.
4. Space Efficient
One main advantage of ductless AC systems is its space-saving design. On the outside of your home, it has a smaller footprint than a whole-home condenser, better fitting in tighter areas such as adjacent to townhouses or new, tightly spaced single homes. On the inside, ductless mini split systems blend into your space without standing out: they can be installed in the ceiling or inside a wall, surface mounted high out of the way, as floor units, in utility closets, or even under your bed.
5. Ductless AC Systems Are Quiet
The library, the background in a concert hall, or your bedroom at night is 30 decibels of sound. Normal conversation is 60 to 70 decibels. Indoor ductless cooling units are barely over 30 dB — with an average noise level of 32 decibels, ductless systems are not only whisper quiet, they're virtually undetectable. The quietness of a ductless system helps you fall asleep and eliminates noise typically experienced with traditional HVAC systems.
6. Improves Indoor Air Quality
Ductless systems come with baseline filtration which provides cleaner air in whichever room they're in. If you require higher-quality air treatment than standard in a specific space, the ductless system is a great enabler for unique treatment solutions requiring ventilation and temperature control — it's also a great solution for a condo, apartment, or space with radiant heating but limited ventilation, giving you improved air treatment without the noise of a typical portable air cleaning unit.
7. Individual Room Comfort Control
Unlike whole-home cooling systems, since its invention in 1959 ductless AC gives you the ability to individually control each cooling device — each wall, ceiling, or floor unit can have a different temperature. This way you're able to set the temperature for each room uniquely, saving many disagreements related to temperature discomfort. You also don't waste your money cooling or heating rooms that you don't use — for example, not cooling bedrooms during the day since the main floor isn't connected to the same system.
8. Easy to Maintain
Maintaining the ductless unit is incredibly straightforward: all that's required is replacing your unit's filter on a regular basis! Periodically, bring your trusted AC expert like Alberta Indoor Comfort to thoroughly wash out and disinfect your system.
9. Ideal for Condos, Sunrooms & Home Offices
Space is limited or at a premium in many locations. A ductless system delivers your comfort needs without taking up valuable space. The condenser tucks away on your deck, roof, or brackets outside; refrigerant lines and power wires run inside the walls or ceiling and are neatly covered with molding or bulkheads — you'll barely know the system is there.
10. Helps You Manage Heat
Hot flashes are a reality for many. The instant cooled air from your close-to-the-bedside, so-quiet-you-don't-even-know-it's-there ductless unit drapes you or your partner in a shroud of comfort.
How a ductless mini-split system fits together
How to Maintain Your Ductless Mini Split Air Conditioner
A ductless mini split air conditioner is efficient and built to last a long time. However, here are a few things you can do to ensure it keeps you cool year in and year out.
- Clean it from dust and debris regularly
- Don't crowd the unit with furniture or wall hangings that can attract dust
- Remove and clean the filters regularly
- Clean the outdoor condenser coil
The best way to ensure your ductless mini split AC system runs smoothly is to call in a professional to maintain it at least once a year. If your ductless mini split system has been unreliable as of late, one of our service technicians can provide repair options.
How Long Does a Mini Split Air Conditioner Installation Take?
If you're on the fence about getting a mini split air conditioner but are worried about the mess or the time for installation, here's some good news: a mini split system is easy to install and the average installation can be done in about a day. And since there's no ductwork to drill, the mess is minimal.
Best Practices for Ductless AC Installation
Beyond the manufacturer's directives — which focus on proper operation — there are best practices that assure your ductless unit doesn't damage your home or frustrate your neighbours. With proper planning and standards, you get what you desire.
Finding the Right AC Contractor in Calgary
It's important to find the best AC contractor for your home. It's an investment that you'll make, and it's something you and your family will use for a very long time. You need to look for a local contractor that is licensed, bonded and trusted by homeowners and other businesses in Calgary. Alberta Indoor Comfort is here ready to serve you and provide you peace of mind, enabling you to feel better and do better using a new air conditioning system.
Free, No-Obligation Consultation
We provide value by giving our best recommendations and solutions. We offer a free, no-obligation consultation where we pop in at your convenience for the both of us to have the opportunity to assess the current situation in your home, and deliver all possible solutions for you to consider. We present cost-effective options that fit your needs, budget, and lifestyle. Being able to see the actual scenario, we can discuss the timeline and work schedule to complete the job.
AC Installation
Our service experts have all the knowledge, training, expertise, and tools to get the job done right. We take care of the permit and other important deliverables. We carry a wide variety of trusted, industry-leading manufacturers that deliver long-term warranties.
See How a Ductless Mini-Split Works
Everything Else You're Wondering About Ductless
Free On-Site Assessment — We'll Tell You Exactly What You Need
We measure the space, assess your existing wiring, and give you a fixed-price quote for the right system — not the most expensive one.
Ductless Mini-Split Questions
Can a mini-split heat as well as cool?
Yes. Most mini-splits we install are heat pumps — they provide both cooling and heating. Cold-climate models (rated for operation down to −25°C to −30°C) can serve as a primary heating source for Calgary winters. At extreme cold, efficiency drops (COP approaches 1.0) but the unit continues operating. For primary heating in Alberta, we recommend a cold-climate rated unit — standard models lose significant capacity below −10°C.
How long does installation take?
A standard single-zone mini-split installation (wall mount head, line set through exterior wall, outdoor unit) takes 4–6 hours. Multi-zone installations take a full day. The home is typically liveable throughout — there's no major disruption.
Where is the best place to mount the indoor unit?
High on an interior wall, roughly 6–8 inches from the ceiling, on the wall opposite the main occupancy area. The unit should be able to draw room air from behind and deliver conditioned air in a long arc across the room. Avoid placement above doors, in corners, or directly above furniture. We assess placement at the quote — proper placement significantly affects comfort and efficiency.
Ductless Mini-Split Installation Across Calgary & Area
Ready for Room-by-Room Comfort?
Talk to a Calgary ductless specialist today — same-week quotes, upfront pricing, no guesswork.
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Our Recent Ductless AC Work in Calgary
Cool Any Room — No Ducts Required
Ductless mini-split installation for Calgary homes, garages, additions, and multi-zone applications.
