Do you actually need cooling in Milan?
For most flats and workplaces in the city, yes. Milan sits in the Po Valley, where summer heat is trapped and humidity is high, and the urban heat-island effect keeps buildings warm into the night. A modern air-to-air heat pump does two jobs from one unit: it cools in summer and heats in the shoulder seasons, which makes it a more useful investment than a cooling-only machine.
The real question is not whether to cool, but how to size and place the system so it is efficient, quiet and legal. That is where the decisions below matter.
Split, multisplit or VRF: which fits your space?
The three options solve the same problem at different scales. A single split cools one room from one outdoor unit. A multisplit links several indoor units to a single outdoor unit, so a flat can cool three or four rooms without covering the balcony in condensers. VRF (variable refrigerant flow) is the commercial system: one outdoor unit serves many indoor zones, each controlled independently, which suits offices, hotels, shops and mixed-use floors.
| Aspect | Single split | Multisplit | VRF |
|---|---|---|---|
| Best for | One room | A flat, a few rooms | Offices, hotels, shops |
| Outdoor units | One per room | One for several rooms | One for the whole system |
| Zone control | Per unit | Per indoor unit | Fully independent zones |
| Typical setting | Bedroom, studio | Apartment | Commercial building |
Picking between them is a question of the number of rooms, the space available for the outdoor unit and how independently each zone must run, not of which technology is "best". For a commercial building, VRF is usually the cleanest way to give each area its own control from a single system.
The rules: who can install, refrigerants, and the outdoor unit
Three rules matter before you buy. First, the installer: air conditioning is a regulated installation, so the work must be done by a firm qualified under Ministerial Decree 37/2008, which issues the declaration of conformity. Second, the refrigerant: the EU F-gas Regulation (EU) 2024/573 is phasing down high global-warming-potential gases, so a new unit should run on a lower-GWP refrigerant such as R32 or R290. F-gas handling is restricted to certified technicians (Presidential Decree 146/2018).
Third, the outdoor unit. In a condominium it goes on shared facades, balconies or courtyards, so building rules and, often, sign-off from the condominium apply, and heritage-listed buildings may need authorisation. Noise is the common flashpoint: position, anti-vibration mounts and a night mode keep it down, but acoustic-emission limits and, in neighbour disputes, article 844 of the Civil Code set the boundary. Get the position right early and most problems never happen.
Efficiency: reading SEER and SCOP
Two numbers on the EU energy label tell you how much electricity the unit will use. SEER is the seasonal cooling efficiency; SCOP is the seasonal heating efficiency for reverse-cycle machines. Higher is better: a higher SEER means the same cooling for less power. In Milan, where the same heat pump usefully heats in the cold months, SCOP deserves as much attention as SEER.
The label is the number to trust, not the headline in the advert. A unit two efficiency classes higher costs a little more to buy and less every summer to run.
Installing is the easy part: running it is the job
An air conditioner that is never serviced loses efficiency, and a clogged filter or a slow leak turns into a summer breakdown at the worst moment. For a home that means higher bills; for a hotel, an office or a shop it means uncomfortable guests, staff or customers, and lost trade. The cost of ownership is not the install, it is the years after it.
That is the part we take on. We install the system, then run it on a service contract: scheduled maintenance, F-gas leak checks, and repairs to agreed response times, with the annual cost known in advance. It keeps comfort, continuity and budget together, and the compliance paperwork in order. It is the same model behind our air-conditioning installation and maintenance work across Milan.
Opening or running a business in Milan?
International companies setting up or managing a site in Milan can have the whole system handled locally, in English: a survey, a design sized to the space, a compliant installation and ongoing maintenance under one contract. The installer must be qualified under DM 37/2008 and use F-gas certified technicians, and for a multi-room site VRF usually gives the cleanest zoning.
We work with property managers, offices, hotels and shops across the city. Tell us about the space and how it is used, and we will size the right system and quote a service contract to run it, with an energy read of the building included.