Ductless Air Conditioning Installation and Repair Mississauga, Toronto, Oakville
A ductless air conditioner, as the name implies, is a heating and cooling system without ductwork. It is a modern, highly-efficient air conditioning system that occupies less space than the classic ducted air conditioning.
There are two types of ductless air conditioning systems:
Ductless Single-Zone System (Mini-Split System)
The basic form of the ductless mini-split system includes one indoor and one outdoor unit. To install the ductless A/C, our technicians will connect it with electrical wiring and refrigerant tubing. The unit is mostly wall-mounted and you can use it during all seasons as it has heating and cooling features. The single-zone ductless air conditioner allows you to control the temperature of one specific room. If you have a smaller house or office, the single-zone air conditioner is ideal for you.
Ductless Multi-Zone System (Multi-Split System)
With a ductless multi-zone system, our team will install one outdoor unit and one or more indoor units (up to eight). With such a cooling and heating system, you can control the temperature in different rooms. Dolphin Mechanical Services team will install the system and show you how to use it. Thus, you will be able to heat one room and cool another room at the same time! The multi-zone mini-split system is very flexible. If you have a spacious property with many rooms or offices, we recommend the ductless multi-zone system that will keep the comfortable temperature in the entire building.
Ductless Air Conditioner Repair Mississauga, Toronto, Oakville
Although you don't have to deal with duct-related issues with ductless air conditioners, there are numerous problems that your heating and cooling system could experience.
If you notice any of the following signs, call us:
Ductless A/C not heating or cooling
If your A/C is not cooling or heating, the problem could be the refrigerant leaks. If you don't call our air conditioning service team on time, the coil could freeze up. Another reason behind this issue can be the dirty components of the device. Dirty filters, blower, or coil could disturb the appliance's operation and lead to bigger damage. We have a qualified team of technicians in Mississauga, Toronto, and Oakville. Dolphin Mechanical experts are always ready to assist our respected clients. Get in touch with us and order premium ductless air conditioner service. We will find the leakage or any other issue that prevents your appliance from working properly.
Control board failure
Mini-splits and multi-splits have control boards on the units outside and inside. If a control board fails, your A/C will start working improperly. Our professionals will inspect all the control boards and determine whether one or more of them have to be fixed and/or replaced.
Poor performance
If your ductless heat pump didn't function perfectly from the very beginning, the reason may be poor installation. It is crucial to hire reliable HVAC contractors for correct system installation. In case your units have already been installed incorrectly, it's still not late to call us. By using our high-quality equipment, we will repair your ductless A/C and make sure every part of it is installed as instructed by the manufacturer.
Ductless Heat Pumps in Mississauga, Toronto and Oakville
A ductless heat pump is a year-round heating and cooling system that uses refrigerant — not ducts — to transfer heat between your indoor and outdoor units. In summer it works as a high-efficiency air conditioner; in winter it pulls heat from outside and delivers it to your home. Modern ductless heat pumps stay efficient even at sub-zero Canadian temperatures, making them a popular replacement for older furnaces or baseboard heating across the GTA.
Dolphin Mechanical Services installs and services ductless heat pumps across Mississauga, Toronto and Oakville. Our technicians size every unit correctly, install it to manufacturer spec, and back the work with a craftsmanship guarantee.
AC Split Unit Installation (Mini-Split & Multi-Split)
An AC split unit — also called a ductless mini-split — is a two-piece air conditioner with one outdoor compressor and one indoor wall-mounted head connected by a small refrigerant line. Split units are quiet, energy-efficient and ideal for:
- Homes without existing ductwork
- Room additions, basements and finished attics
- Condos and apartments where window units aren't allowed
- Garages, workshops and home offices
- Zoned cooling where each room needs independent control
Most modern AC split units double as heat pumps — one system handles both cooling and heating, eliminating the need for separate equipment.
Ducted Heat Pump Systems
If you already have ductwork, a ducted heat pump is often the most efficient way to upgrade your central HVAC. The compressor sits outside while a single indoor air handler distributes conditioned air through your existing ducts — so you keep the whole-home feel of central air, but with the year-round efficiency of a heat pump. We size, install and service ducted heat pumps for residential and light-commercial properties across Mississauga, Toronto and Oakville.
Brands We Install & Service
We work with the leading manufacturers in the ductless and heat pump industry, so you can choose the brand that best fits your home and budget:
- Mitsubishi Electric
- Daikin
- Fujitsu
- LG
- Panasonic
- Goodman
Frequently Asked Questions
What is a ductless heat pump?
A ductless heat pump is a heating and cooling system that transfers heat between indoors and outdoors without using ducts. It consists of an outdoor compressor and one or more indoor wall-mounted units (mini-splits) connected by refrigerant lines, providing both AC in summer and heating in winter.
What's the difference between a ductless and a ducted heat pump?
A ductless heat pump uses individual indoor units mounted directly in each room, while a ducted heat pump distributes heated or cooled air through a network of ducts. Ductless systems offer zoned comfort and easier installation; ducted heat pumps deliver whole-home comfort through your existing ductwork.
Is an AC split unit the same as a ductless mini-split?
Yes — an AC split unit and a ductless mini-split refer to the same type of system: a two-piece air conditioner with one indoor unit and one outdoor unit connected by refrigerant lines. Modern split units typically include a heat pump function so they both cool and heat.
How much does ductless installation cost in Mississauga or Toronto?
Pricing depends on the brand, capacity (BTU), number of zones and your home layout. Single-zone systems are the most affordable; multi-zone setups cost more. We provide a free, no-obligation on-site estimate for every install across Mississauga, Toronto and Oakville.
Free Estimates
We provide free estimates for all our clients in Toronto, Oakville, and Mississauga!
Do not wait to call us. As soon as you notice a problem with your heating and cooling system, get in touch with us! We will inspect the outdoor and indoor units at no cost.
Our experienced technicians will tell you the exact problem and estimate the repair price. You will not pay for that! If you are willing to fix the ductless air conditioning immediately, we can proceed with the repair service!
Request Ductless Estimate
