# Ductless Mini-Split Installation Toronto | Best HVAC

> Ductless mini-split installation for spaces without ductwork in Toronto - additions, attics, basements, condos. Per-zone heating & cooling. Free estimates.

URL: https://besthvactoronto.ca/ductless-mini-split-installation/

![Technician mounting a ductless mini-split indoor head on the wall of a Toronto home addition](/images/hero/technician-in-plain-grey-uniform-mounting-a-white-.webp)

# Ductless Mini-Split Installation for Toronto Homes

Last updated: September 4, 2026

Ductless mini-split installation for cooling and heating spaces without ductwork: additions, attics, basements, condos, and garages.

-   check\_circle TSSA G1/G2 certified
-   check\_circle 20+ years experience
-   check\_circle 2-Year Labour Warranty

call Call 647-254-4113

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View pricing

[#pricing →](#pricing)

payments **From $3,500** — per zone

-   star star star star star 4.9 (150+ reviews)
-   verified TSSA G1/G2 Certified & $2M Insured
-   bolt 2-Hour Emergency Response
-   workspace\_premium 2-Year Labour Warranty

Common problems

## Sound familiar?

home

### A room with no ductwork and no good cooling option

Additions, converted garages, and older homes often have nowhere to run ducts. A mini-split solves it without cutting into walls or ceilings.

bolt

### Worried installation will disrupt the house

Mini-splits need only a small line set through an exterior wall. Most single-zone installs are finished in a day with minimal mess.

help

### Not sure how many zones you actually need

We size the system to the rooms that need it, single, two, or multi-zone, rather than selling more capacity than the space requires.

## What is a ductless mini-split and when does it make sense?

A ductless mini-split is a 

heat pump

[/heat-pump-installation/ →](/heat-pump-installation/)

 split into two parts: a compact outdoor condenser and one or more indoor heads mounted on a wall, in a ceiling, or at floor level. Refrigerant lines run between them through a single small wall penetration, so there is no ductwork to install and no ceilings to open up. Each indoor head has its own thermostat, so each zone holds its own temperature independently.

The case for a mini-split is strongest wherever ducts do not reach or cannot cope. Home additions built after the original heating system was designed, finished attics with sloped ceilings, basements that were completed years later, converted garages, sunrooms, and condos are all classic cases. So is the single stubborn room in an otherwise comfortable house, the west-facing office above the garage that hits 30 degrees in July while the rest of the house is fine. 

Extending ductwork

[/ductwork-duct-cleaning/ →](/ductwork-duct-cleaning/)

 to solve that problem is expensive and disruptive; a single-zone mini-split solves it in a day.

![Technician commissioning a ductless mini-split indoor head with a service tablet and checking supply air temperature in a Toronto home office](/images/content/technician-commissioning-a-ductless-mini-split-ind.webp)

Every mini-split we install is a heat pump, so it heats as well as cools. For spaces you actually live in through the winter, we specify cold-climate models that hold useful capacity below -15 degrees rather than falling back on portable heaters in February. For a garage workshop or a shoulder-season sunroom, a standard model is usually the sensible economy.

### What is included in every mini-split installation

Room-by-room load assessment, zone sizing, indoor head placement planning, outdoor unit siting for noise and snow clearance, wall penetration sealed and finished, insulated line set in a paintable cover, condensate drainage, electrical connection and disconnect, deep vacuum and verified refrigerant charge, heating and cooling tested on every zone, controls handover, and a 2-year labour warranty.

## Choosing a configuration

### Single zone

One indoor head and one outdoor unit. The simplest and cheapest option, ideal for a single problem room, an addition, or a garage.

### Two zone

Two indoor heads sharing one outdoor condenser. The most common configuration we install, typically covering a finished basement plus a home office, or two upstairs bedrooms.

### Multi zone

Three to five indoor heads on one outdoor unit. Lower cost per zone and only one condenser outdoors, but it needs careful sizing. Fitting identical heads in rooms of very different sizes leads to short-cycling in the small rooms, which is the most common design fault we see in systems installed by others.

### Indoor unit styles

Wall-mounted heads are the standard and least expensive. Ceiling cassettes suit rooms where wall space is limited and give a more discreet result. Floor consoles work well under windows in rooms with sloped ceilings, such as finished attics.

## What affects mini-split installation cost in Toronto?

Zone count comes first, though the cost per zone falls as zones are added to a shared outdoor unit. Second is capacity per zone, driven by room size, window area, and insulation rather than a rule of thumb.

Third is the equipment tier: cold-climate models with enhanced low-temperature performance cost more than standard ones, and ceiling cassettes cost more than wall heads. Fourth is line set length and routing complexity, since a head on the far side of the house from the practical condenser location needs a longer, more involved run.

Fifth is electrical. Some installations need a new dedicated circuit and disconnect, which we identify during the site visit. All of this goes into a written fixed price before any work begins.

Transparent pricing

## How much does mini-splits cost in Toronto?

Multi-zone systems share one outdoor unit, which lowers the cost per additional zone.

receipt\_long Written quote before any work begins. No hidden fees.

### Single zone

One indoor head

Starting from $ 3,500 per zone

-   check One indoor head and outdoor unit
-   check Cooling and heating in one system
-   check Line set concealed in a cover
-   check 2-year labour warranty

Get a quote

[tel:+16472544113 →](tel:+16472544113)

MOST COMMON

### Two zone

Most common configuration

Starting from $ 6,000 per zone

-   check Two indoor heads, one outdoor unit
-   check Independent temperature per room
-   check Cold-climate models available
-   check Rebate eligibility checked

Get a quote

[tel:+16472544113 →](tel:+16472544113)

### Multi zone

Three or more heads

Starting from $ 8,000 per zone

-   check Three or more indoor heads
-   check Shared outdoor condenser
-   check Wall, ceiling cassette, or floor units
-   check Full commissioning per zone

Get a quote

[tel:+16472544113 →](tel:+16472544113)

Prices are guide ranges for Toronto and the GTA. Final pricing depends on your equipment, access, and site conditions, and we confirm it in writing before starting. 

Request a free estimate

[/contact/ →](/contact/)

 or call 

647-254-4113

[tel:+16472544113 →](tel:+16472544113)

.

savings Financing available on approved credit, plus lease-to-own with zero down on qualifying installs.

Why us

## Why choose Best HVAC Toronto for mini-splits?

straighten

### Tidy, considered routing

A mini-split lives on your wall for fifteen years. We plan head placement and line set routing so it looks intentional rather than improvised.

tune

### Zone-by-zone sizing

Multi-zone systems fail when every head is the same size regardless of room. We size each zone on its own load so small rooms do not short-cycle.

severe\_cold

### Cold-climate options

Where the space is a primary living area, we specify cold-climate models that keep producing heat through a Toronto winter rather than relying on backup.

apartment

### Condo-ready

We work with property managers on insurance certificates, elevator booking, and exterior unit approvals so a condo install actually gets scheduled.

## How Best HVAC Toronto compares

| Feature | Typical provider | Best HVAC Toronto |
| --- | --- | --- |
| Zone sizing | Same head size everywhere | Each zone sized on its own load |
| Line set routing | Shortest path, exposed | Planned route in a finished cover |
| Winter capability | Standard model | Cold-climate model where the space is lived in |
| Commissioning | Cooling tested only | Heating and cooling verified on every head |
| Labour warranty | 1 year | 2 years |

How it works

## How does our mini-splits service work?

1.  1home\_work
    
    ### Walk the space
    
    We measure each room, check window area and insulation, and work out where the indoor heads and the line set can run with the least visual impact.
    
2.  2calculate
    
    ### Size and plan zones
    
    Each zone is sized on its own load. We plan the outdoor unit location for noise, snow clearance, and service access before quoting.
    
3.  3build
    
    ### Install
    
    Most single and two-zone installs are completed in a day. Wall penetrations are small and sealed, and the line set runs in a finished cover.
    
4.  4verified
    
    ### Commission each zone
    
    We vacuum the line set, verify charge, test heating and cooling on every head, and show you the controls and filter cleaning routine.
    

## Not sure what your mini-splits situation needs?

Get a straight answer and a written price, with the numbers to back it up. No pressure, no scare tactics.

call 647-254-4113

[tel:+16472544113 →](tel:+16472544113)

 

Book Online

[/contact/ →](/contact/)

Our work

## Recent mini-splits projects

Click any image to enlarge.

    

 

Reviews

## What customers say about our mini-splits work

starstarstarstarstar4.9 out of 5 from 150+ customer reviews

star star star star star

> Added a two-zone mini-split for the addition. They took the time to work out where the lines should run so it didn't look like an afterthought.

DDan P.Long Branch, Etobicoke

star star star star star

> Our condo unit was barely cooling. They diagnosed it properly instead of guessing and had parts the next day. Easy to deal with and respectful of the building's rules.

CCarla V.Mimico, Etobicoke

star star star star star

> Quiet, clean install for the finished basement. The difference in that room is night and day.

SSteph R.Hawthorne Village, Milton

FAQ

## Mini-Splits questions, answered

### How much does a ductless mini-split cost in Toronto?

expand\_more

Expect $3,500 to $8,000 per zone installed. A single-zone system with one indoor head sits at the lower end. Multi-zone systems cost more overall but less per zone, because several indoor heads share one outdoor condenser. Cold-climate models, ceiling cassettes, and long line set runs all add to the figure.

### What spaces are mini-splits best for?

expand\_more

Anywhere the ductwork does not reach or cannot cope: home additions, finished attics and basements, converted garages, sunrooms, home offices above a garage, and condos where central equipment is not an option. They are also a good answer for one persistently uncomfortable room in an otherwise well-served house, where extending ductwork would be far more disruptive.

### Do mini-splits provide heating as well as cooling?

expand\_more

Yes. Every mini-split we install is a heat pump, so it heats as well as cools. For a space you occupy through winter we specify a cold-climate model that maintains useful output well below -15 degrees. For a garage or a shoulder-season sunroom, a standard model is usually sufficient and less expensive.

### How noisy are they?

expand\_more

Indoor heads run around 19 to 30 decibels on low, which is quieter than most refrigerators and considerably quieter than a forced-air system starting up. The outdoor unit is the noisier component, so placement matters. We avoid siting condensers directly beneath bedroom windows or in narrow side-yards where sound reflects between houses.

### Can one outdoor unit serve multiple rooms?

expand\_more

Yes, that is a multi-zone system. One outdoor condenser can typically serve two to five indoor heads, each with its own thermostat and independent control. It lowers the cost per zone and means only one outdoor unit. The important detail is sizing each indoor head to its own room rather than fitting identical heads throughout.

### Will there be a big hole in my wall?

expand\_more

A single penetration of roughly 75 millimetres per indoor head carries the refrigerant lines, condensate drain, and control wiring. It is sealed and finished on both sides. Outdoors, the line set runs inside a paintable cover down to the condenser, which we route along a discreet elevation wherever the layout allows.

### Do they need much maintenance?

expand\_more

Less than a ducted system, but not none. Indoor filters should be rinsed every month or two during heavy use, and an annual professional service covers coil cleaning, condensate drainage, refrigerant charge, and electrical checks. Neglected indoor coils develop odours and lose capacity, which is the most common complaint we are called about.

### Are mini-splits eligible for rebates?

expand\_more

Cold-climate ductless heat pumps can qualify under Ontario's Home Renovation Savings program and federal Canada Greener Homes support, particularly where the system provides primary heating rather than supplemental comfort cooling. Eligibility depends on the specific model appearing on the qualifying list, which we verify before quoting.

### Can you install a mini-split in a condo?

expand\_more

Often yes, though it depends on the building. The constraints are usually whether an exterior condenser can be mounted on a balcony or wall, and whether the condo board permits it. We work with property managers on insurance certificates, elevator booking, and approval documentation. Where an exterior unit is not permitted, servicing or replacing the existing fan coil is the alternative.

### How long does installation take?

expand\_more

A single-zone install is normally completed in one day. Two zones typically take one long day or two shorter ones. Larger multi-zone systems take two to three days. Condo installations sometimes take longer because of elevator booking windows and building access rules rather than the work itself.

## Related services

ac\_unitAir Conditioning Installation & RepairCentral AC sized to your home, plus 24/7 emergency repair through Toronto heat waves.

[/air-conditioning-installation-repair/ →](/air-conditioning-installation-repair/)

heat\_pumpHeat Pump InstallationCold-climate heat pumps that heat and cool year-round, with rebate paperwork handled.

[/heat-pump-installation/ →](/heat-pump-installation/)

airIndoor Air Quality SystemsHRV and ERV ventilation, humidifiers, filtration, and UV purification for healthier indoor air.

[/indoor-air-quality-systems/ →](/indoor-air-quality-systems/)

![](/images/hero/hvac-technician-in-plain-grey-uniform-kneeling-bes.webp)

24/7 for gas emergencies, red tags, no-heat and no-AC

## Ready to book mini-splits?

Ductless mini-split installation for cooling and heating spaces without ductwork: additions, attics, basements, condos, and garages. Written quotes before work begins, and a 2-year labour warranty.

call Call 647-254-4113

[tel:+16472544113 →](tel:+16472544113)

 

Get a Free Estimate

[/contact/ →](/contact/)

-   check\_circle 2-year labour warranty
-   check\_circle Written quotes before work starts
-   check\_circle TSSA G1/G2 certified, WSIB covered