How Much Does it Cost To Install Air Conditioning
Within this article we discuss the install costs, additional expenses running costs and what you should look for in an installer.

Air conditioning is a process that maintains comfortable indoor temperatures, humidity levels, and air purity. It’s commonly used in homes for personal comfort and in industries to ensure machines operate correctly. For example, welding produces a lot of heat that must be handled correctly. Air conditioning systems must regulate four things: air temperature, humidity, movement, and quality. Temperature control ensures indoor temperatures remain comfortable, humidity control prevents dry air, air movement helps maintain ventilation, and air quality helps prevent disease spread and creates a pleasant environment.

We’ll discuss the following in this article:

Installation Costs of Air Conditioners

This informative guide provides an estimate of the costs of installing various air conditioning systems, offering a clear idea of how much budget you’ll need to set aside for your desired unit. It also outlines how long the installation service process should take, so you can plan accordingly and ensure that the process is as smooth and efficient as possible. With this information, you’ll be well-equipped to make informed decisions about the type of air conditioning system that’s right for you, based on your budget and installation timeline.

Types of Air Conditioners
Installation Costs
Estimated Installation Time
Window-mounted Air Conditioner £300 to £1,500+ per unit One day
Floor-mounted Air Conditioner £600 to £1,450+ per unit One day
Portable Air Conditioner £30 to £500 per unit N/A
Evaporative Air Cooler £90 to £500 per unit N/A
Single or multi-split system days £1,000 to £1,600+ per unit One to Seven
Ducted or Ceiling Cassettes £2,500 to £4,000+ per unit Three to Ten
MVHR System £7,000 to £8,500+ per home Five to Seven

In the above chart, we described different types of air conditioners along with their installation and estimated installation costs. Now we are describing the average costs like Domestic and Commercial air conditioning installation costs, Installation Costs for one room, for the whole house, and other air conditioning choices.

Domestic or commercial Air Conditioning Installation Service in the UK

Thaw Ltd is here to help you keep your home, office, or commercial space cool during the summer with our top-quality AC systems.

The cost of domestic and commercial air conditioning in the UK can vary greatly depending on various factors, such as the type and size of the system, the brand, the complexity of the installation, and the maintenance required. Generally, domestic air conditioning systems in the UK can cost between £1,000 and £5,000, while commercial systems can cost between £3,000 and £10,000 or more. The installation costs for air conditioning systems can also add to the total cost, ranging from a few hundred pounds to thousands of pounds, depending on the complexity of the installation.

Our experienced team can install both domestic and commercial air conditioning units at affordable prices in your area, ensuring that your office and family are taken care of properly. We provide efficient and cost-effective air conditioning services for your workplace, so you can create a comfortable work environment for your employees as soon as possible. Freely Contact Us.

Installation Cost for One Room

A single-room air conditioning system typically costs around £350 for the materials, with installation service costs ranging from £1,100 to £1,500. An upgraded version of this system features a single outdoor fan unit and two indoor units that serve one room each. However, these indoor units cannot be operated individually and only have heating or cooling modes.

Whole-House Air Conditioning

Multi-split air conditioning systems have one outdoor fan unit and can have up to 10 indoor units, depending on the manufacturer. These systems cost around £1,200 per indoor unit. The indoor units can be located in the same room or separate rooms and operated individually or together. However, the indoor units can only be in heating or cooling mode, not both. The installation cost varies depending on the type of indoor unit chosen, with wall-mounted bulkheads being the simplest option. Other indoor unit types include fan convectors, slim duct systems, and boxed-in ducts, which are more expensive due to the additional design detail required to define where the ducts will go.

Cheapest Air Conditioning Choices

Portable air conditioners offer a budget-friendly solution and are effortless to move between rooms, without the need for installation expenses. These units typically start at around £250 and can be plugged into a standard electric wall socket. To expel the warm air, you will need to run a duct out of a window that is approximately 125mm in diameter. However, if there is no window or route outside, you will not be able to use these units. Additionally, you will need a bucket to collect the condensate drain. To prevent overheating in homes, Building Regulations Part O (Overheating) was introduced in June 2022, but it applies only to new properties. Air conditioning is still a viable option for existing properties, especially on the hottest days.

Additional Air Conditioning Expenses

In addition to the Installation Costs, There are also ongoing maintenance costs, energy costs, and repair costs to consider. Without regular maintenance, the efficiency of the unit will decrease, leading to higher energy bills. If the unit breaks down and requires repairs, this can also be a significant expense.

Maintainance Costs Air Conditioning in the UK

Regular maintenance for air conditioning typically costs between £60 and £160, and it involves simple tune-ups. Extended service contracts can cost anywhere between £120 and £400 and cover both heating and cooling systems. If you need an HVAC specialist to perform repairs that aren’t part of a standard service, you should expect to pay between £40 and £120 per hour. During a standard service call, an HVAC expert will clean your system’s condenser and conduct various inspections to ensure that it’s working correctly. However, evaporator coil and duct cleaning are usually not included in standard AC tune-ups. Recharging AC refrigerants, which is typically only necessary if there’s a leak or a part needs to be replaced, can cost between £80 and £275. HVAC professionals will charge £40 or more for a service call to your home. A comprehensive HVAC system check that includes ducting and furnace will cost between £6,100 and £13,000.

Cost of maintaining Air Conditioning systems

Maintaining air conditioning systems in the UK is crucial to ensure optimal performance, energy efficiency, and longevity. The cost of maintaining air conditioning systems varies depending on the type, size, and complexity of the system. Generally, the cost of maintenance can range from £50 to £200 per unit, depending on the type of maintenance service required. Regular maintenance, such as cleaning the filters, coils, and fins, and checking the refrigerant levels, can help reduce the risk of breakdowns and costly repairs. Additionally, annual maintenance contracts with HVAC companies can provide regular inspections and maintenance, which may help identify and prevent potential issues, and typically cost between £150 to £300 per year. It is essential to keep in mind that investing in regular maintenance can help prolong the lifespan of the system and ensure that it operates efficiently, which can lead to long-term cost savings.

Energy Cost

The energy cost of air conditioning refers to the amount of money you spend on electricity to run your AC unit. Running an air conditioner can be expensive, especially during the hot summer months when you use it more frequently. The longer your air conditioning unit runs, the more energy it consumes, resulting in higher energy bills.

Breakdown or Repair Air Conditioning Costs in the UK

In the UK, the cost of repairing or replacing a broken air conditioning system can vary depending on a variety of factors. Typically, the cost of repair can range from £50 to £1,000, depending on the extent of the damage and the type of AC unit. If a complete replacement is required, the cost can range from £1,500 to £4,000 or more, depending on the type and size of the unit. It is important to keep in mind that regular maintenance and servicing of your AC unit can help prevent breakdowns and keep repair costs low.

Average AC repair prices dependent on the type of service

Take a look at this table for the cost breakdown of different air conditioning services, including AC leak repair and AC condenser repair.

AC tune-ups £80–£200
AC freon or refrigerant leak repair £200–£1500
AC capacitor replacement £60–£200
AC condenser replacement £1200–£4200
AC compressor replacement £800–£3000

Average AC repair prices based on the type of unit

The cost of repairing air conditioners varies depending on the type of unit, such as window or inverter, as well as the specific parts involved in the repair.

Various home AC system repairs (Window, Inverter, Split, or Multi-Split) £70–£125
Variable Refrigerant Volume repairs £125–£225
HVAC replacement £3,500 + varies per system

Contact Us to get your Air Conditioner Repaired

Looking for an AC repair technician? Visit Thaw Ltd. to find the right expert for your needs. Browse through our selection of offers, choose the best fit for you, and schedule a convenient time and date for the repair or replacement through Call us: 0800 689 1726 or Contact Us. Be sure to include all necessary details in your listing.

  • Please specify the brand and model of your air conditioner.
  • Let us know your location, so we can connect you with a technician near you.
  • Please indicate if you require major or minor repairs.
  • Please describe the issues you have noticed with your air conditioner.
  • Do you have any equipment that needs to be provided for the repair?
  • Are there any additional services you require besides the repairs?
  • Let us know if your air conditioner is still under warranty coverage

Features of the Air Conditioner

Different air conditioning systems may come with various features depending on the manufacturer, which can impact the cost of the unit.

  • Most air conditioners provide both cooling and heating, although a multi-split system, an air-to-air system, or an MVHR system may be needed to heat an entire home efficiently. However, using the heating setting on an air conditioning unit can be a useful backup option, especially if you only need to heat one room instead of the whole house.
  • Some air conditioning units come equipped with a dehumidifier mode, which can be beneficial in reducing moisture levels in the air, particularly during wet winters.
  • Fan speeds can affect how quickly a room cools down, with the highest setting cooling a room faster but also creating more noise than the lowest setting.
  • Sleep mode allows the unit’s motor to run slowly during the night, making less noise. High-end air conditioning units are typically quieter, but it’s essential to check the decibel rating of both indoor and outdoor units before purchasing, especially if installing the team in a bedroom.
  • A timer feature allows users to set specific times for the air conditioning unit to turn on or off, making it helpful in controlling energy consumption and allowing the system to shut down in the early morning hours. Consider these features when selecting an air conditioning unit that meets your needs.

Running Air Conditioning is Expensive

Air conditioning units consume electricity to function, and the refrigerant cycle is used to provide cooling while rejecting waste heat outside. This process has an efficiency of about 300%, which means that for every kWh of electricity used, you get an equivalent of 3kW of cooling. For an average indoor unit of 2kW, the electricity consumption is approximately 600W, resulting in an air conditioning cost of around 20p per hour per indoor unit at 28p/kWh. The ideal combination is to have solar PV panels and an air conditioning system as it generates the most electricity when cooling is needed, leading to lower operating costs.

What Qualities Should I Seek in an Installer?

Firstly, the installer should be FGas qualified, which means that they have passed an exam that proves their competency in handling fluorinated gases, which are commonly used as refrigerants in air conditioning systems. This is important because these gases can be harmful to the environment and need to be handled correctly.

Secondly, the installer should be registered with a self-certification body. This means that they are authorized to self-certify that their installation work complies with Building Regulations. This is important because Building Regulations are a set of standards that ensure that buildings are safe and energy-efficient, and compliance is a legal requirement in the UK. By being registered with a self-certification body, the installer is demonstrating that they are competent and knowledgeable in meeting these standards.


In this article, we have discussed the installation service costs of air conditioning systems and the cost of domestic and commercial air conditioning in the UK. The article also highlights additional expenses such as ongoing maintenance costs, energy costs, and repair costs to consider. Also, what are the features of air conditioning and what qualities should an installer have? We are here to help you install your air conditioning system. You can Call us: 0800 689 1726 or Contact us Now and we will provide you services you are required for.