Air Conditioning Quotes in Ireland
Compare up to 4 local air conditioning professionals. Free, no obligation quotes.
Air conditioning in Irish homes was once considered an extravagance, but increasingly warm summers and better-insulated homes that trap heat have changed that. Modern A-rated and nearly zero energy homes are exceptionally well-insulated and airtight, which is excellent for winter heating costs but can make them uncomfortably hot in summer, particularly rooms with large south or west-facing windows.
The most common residential system is the split unit: a wall-mounted indoor unit connected to an outdoor compressor via refrigerant pipework. These systems provide both cooling in summer and efficient heating in winter, as they are essentially air-to-air heat pumps running in reverse. A single split unit cools one room effectively and costs €1,500 to €3,000 installed. Multi-split systems connect multiple indoor units to one outdoor unit, covering several rooms from a single installation.
For homeowners who already have an air-to-water heat pump for central heating, adding cooling is possible with fan coil units, though this is less common in Ireland. Portable air conditioning units are a budget option but are noisy, less efficient, and require an exhaust hose vented through a window, which lets warm air back in and defeats part of the purpose.
Installation must be carried out by an F-Gas certified technician, as the refrigerant gases used are controlled substances under EU regulations. This is a legal requirement, not optional. Getting quotes from certified installers ensures safe, compliant installation and protects the manufacturer's warranty on your system.
How Much Does Air Conditioning Cost in Ireland?
Typical pricing for air conditioning services in Ireland (2026):
| Service | Typical Cost | Notes |
|---|---|---|
| Single split unit (1 room) | €1,200 | €2,500 | Room size, brand |
| Multi-split system (2-3 rooms) | €3,000 | €6,000 | Number of units, pipe runs |
| Whole-house ducted system | €8,000 | €15,000 | Property size, ductwork |
Single split €1,500-€3,000. Multi-split (2-4 rooms) €4,000-€8,000. Running costs approximately €0.15-€0.30/hour. Annual servicing €80-€150.
What to Expect: The Air Conditioning Process
- Site survey to calculate cooling load.
- System recommendation and quote.
- Installation (one day for single split).
- Commissioning and F-Gas documentation.
- App and remote setup.
Common Mistakes to Avoid
- Portable units for long-term use.
- Non-F-Gas certified installer.
- System too small for the room.
- Outdoor unit annoying neighbours.
- Not cleaning filters regularly.
What to Look for When Hiring an Air Conditioning Professional
F-Gas certification (legal requirement). SEAI registration if part of grant-supported project. Proper heat load calculation. Be cautious of sizing without room assessment.
Questions to Ask Your Air Conditioning Professional
- F-Gas certified? Legal requirement.
- System size needed? Must match cooling load.
- Outdoor unit placement? Noise and aesthetics.
- Heating and cooling? Most split systems do both.
- Running costs? Installer should estimate.
- Maintenance? Filters every 2-4 weeks. Annual service.
Frequently Asked Questions
A single split system cooling one room costs €1,500 to €3,000 fully installed. A multi-split system serving 2 to 4 rooms costs €4,000 to €8,000. Portable units cost €300 to €600 with no installation needed, but are significantly noisier and less efficient. Running costs for a split system are approximately €0.15 to €0.30 per hour at current electricity rates for a standard-sized room. Annual professional servicing costs €80 to €150.
In most cases no. A domestic air conditioning split system does not require planning permission. However, if the outdoor unit is exceptionally large, produces significant noise, or is positioned prominently on a front elevation, some local authorities may raise concerns. In apartments or managed housing estates, you typically need management company approval before installing an outdoor unit. Always consider the noise impact on your neighbours when choosing the unit's position.
Indoor units operate at 19 to 30 decibels, which is quieter than a whisper and virtually inaudible in a furnished room. Outdoor units are louder at 40 to 55 decibels, producing a constant low hum similar to a fridge. Noise levels vary by brand and model, and premium brands tend to be quieter. Careful placement of the outdoor unit away from bedroom windows and neighbours' boundaries minimises any noise impact.
Yes. Most modern split systems are reversible, functioning as air-to-air heat pumps that provide efficient heating at a coefficient of performance (COP) of 3 to 4. This means they produce 3 to 4 units of heat for every 1 unit of electricity consumed, making them highly efficient. In Ireland's mild winters, a split system can serve as a very effective primary or supplementary heating source for the room it serves, often more cheaply than running a gas or oil boiler.
If you have a well-insulated room with large south or west-facing windows that overheats in summer, or if you work from home in a room that becomes uncomfortable on warm days, air conditioning makes a significant quality-of-life difference. The reversible heating function adds year-round value. With Irish summers trending warmer and new homes being built to increasingly airtight standards, residential demand for air conditioning has grown steadily over the past five years.
A single split system installation takes 4 to 8 hours, typically completed in one working day. The main time is spent routing refrigerant pipework and electrical connections between the indoor and outdoor units, which may involve drilling through external walls and running pipe along the exterior. Multi-split systems with multiple indoor units take 1 to 2 full days. The system is operational immediately after installation and commissioning.
Air Conditioning Quotes by County
Find air conditioning professionals in your county: