Air conditioning — systems and costs in Luxembourg at a glance
Air conditioning keeps the house cool through heatwaves — and reversible models also heat in winter, often for less than an electric radiator. Systems differ mainly in their configuration — mono-split, multi-split or ducted — and in their sizing.
On this page: why to fit one in 2026, the real Luxembourg price ranges, and how to receive two comparable quotes within 24 hours — free of charge.
Why air conditioning in 2026: cool nights even in July
Luxembourg summers pass 30 °C more and more often. A properly sized unit keeps bedrooms around 22 °C — and heats in winter in reversible mode.
Heatwaves are multiplying
Heat episodes in Luxembourg get more frequent every decade. A house that stays liveable in August can no longer be improvised with a fan.
Reversible: an economical back-up heater
In the shoulder season, a split's heating mode uses far less than an electric radiator. One appliance, two seasons.
Filtered air, not just cooled air
Recent units filter pollen and dust as they circulate the air. A real plus when the windows stay shut in the heat.
Sleep better, work from home better
22 °C in the bedroom or the office, even in a heatwave. Full nights and concentration come back with the cool.
Consumption under control
Sized correctly, a split uses little. Oversizing is what costs money — which is exactly why two comparable quotes pay off.
Looking for an air conditioning quote?
We find the vetted installers in your area — two at most.
What does it cost in Luxembourg?
*Indicative Luxembourg averages, for orientation only. Your two quotes price your actual project.
2026 grants & subsidies
- €
No direct grant for air conditioning
Air conditioning on its own does not qualify for the Klimabonus. We would rather say so straight away — the real saving lever is correct sizing.
- €
3% housing VAT
The super-reduced rate may apply to the work if your home is more than 10 years old.
- €
Correct sizing is your real grant
A unit matched to your rooms costs less to buy and to run than the grant you will not be getting.
The simplest way: your two vetted installers size your rooms and apply the reduced VAT rate if your home qualifies — directly inside their quote.
And what does that mean for your rooms?
Two priced, comparable quotes within 24 h. Free, no obligation.
Why go through HomeUpdate?
HomeUpdate filters, qualifies and guarantees every installer — before the first call.
Mono or multi-split
One room or the whole home: your installers size and price the right solution.
Two installers, never five
Your details go to two partners at most.
Licensed & audited every year
Licensed in Luxembourg, audited on quality, lead times and customer follow-up.
Priced quote within 24 h
First call back in 18 minutes on average. Written, comparable quotes within 24 hours.
Dedicated WhatsApp follow-up
Our team stays reachable on WhatsApp throughout the whole process.
72-hour refund
A contact that does not deliver? We refund the company and find you a replacement.
How it works
You describe your rooms
Area to cool, postcode, timing. 60 seconds, no sign-up.
Two installers call you back
Request verified within 4 working hours. Two vetted partners prepare a priced quote.
You compare and choose
Capacity, brand, noise level, warranties. You decide freely — HomeUpdate stays reachable if something goes wrong.
Air conditioning: your questions
How much does air conditioning cost?
A mono-split starts around €2,500–€4,000 installed; a multi-split for several rooms runs from €5,000 to €9,000. Your two quotes price your exact case.
Can air conditioning also heat?
Yes, reversible units heat in winter and cool in summer — often cheaper to run than conventional electric heating.
Is it noisy?
Recent units are quiet. The model and where it is placed make the difference — your installers take that into account.
Does it need servicing?
An annual service keeps the unit efficient and hygienic. Several partners offer a maintenance contract — it is stated in the quote.
How many installers will contact me?
Two at most. Never 5, never 27. It is written into our contract.
Is it free for me?
Yes, €0. HomeUpdate is paid by the trade companies, never by homeowners.
