Understanding Air Conditioning Installation Costs
If you’re considering installing air conditioning at home or in your business, understanding the costs upfront helps you make smarter choices. While portable units require no professional setup, fitted systems like wall-mounted or ducted air conditioning need installation by an F-Gas certified engineer.
What Affects Installation Costs?
Several factors determine how much you’ll pay for air conditioning installation in the UK:
System type
Wall-mounted split systems are generally the most affordable to install, while multi-split or ducted systems require more time and equipment, increasing overall cost.
Number of indoor units
A single split system has one indoor and one outdoor unit, making it quicker to fit. Multi-split systems with multiple indoor units take longer, as each unit needs its own connection.
Pipe runs and accessibility
If the indoor and outdoor units are close together, installation is straightforward. The further apart they are, the longer the pipe runs which means more materials and time.
Property type and layout
Older buildings or properties with thick walls may require additional drilling or bracket support. Flats and listed buildings may also have restrictions on external condensers, which can affect both product choice and installation complexity.
Electrical requirements
Some air conditioning systems need dedicated electrical circuits or isolators, which can add to the cost if not already in place.
Average Cost Guide (UK)
While every property is unique, here’s a rough guide to typical air conditioning installation costs:
- Single Split System: £600 – £1,200 (labour only)
- Multi Split System: £1,000 – £3,000 (depending on units)
- Ducted System: £2,500 – £6,000+ (larger or commercial setups)
If you’re buying your system and arranging installation separately, always confirm what’s included in the quote, such as pipework, mounting brackets, or electrical work.
Saving on Installation
Pre-site preparation: Ensure clear access to indoor and outdoor areas before installation day.
Choose the right size system: Oversized or undersized units can cost more to run and install.
Bundle installation with purchase: Some suppliers offer discounts when you buy your system and installation together.
Do You Need an F-Gas Engineer?
Yes - any fitted air conditioning system that uses refrigerant gas (like split or multi-split units) must be installed by an F-Gas certified engineer. This ensures safe, compliant handling of refrigerants and protects your manufacturer’s warranty.
Final Thoughts
Installation cost isn’t just about labour - it’s about performance, efficiency, and longevity. A professionally installed system will not only keep your home comfortable but also run more efficiently and last longer.
If you’re unsure which system suits your home or want to get a quote from a certified installer, our team can guide you through the process.