The Principality of Monaco is taking a major step forward in its energy policy: from September 2028, all single-glazed windows will be banned in every existing and future building. It is an ambitious measure designed to improve the energy performance of buildings, reduce heat loss and make homes more comfortable for their occupants.
Since 2020, more than 1,100 windows have already been replaced thanks to the previous grant scheme. In response to market changes and new climate challenges, the Monaco Government has decided to step up its financial support, making it more generous and easier to access.
The new Ministerial Order No. 2025-407 gives owners and co-owners the opportunity to upgrade their homes while benefiting from substantial financial support. If you want to get ahead of the new rules and improve your comfort, now is the ideal time to switch to double glazing.
Single glazing soon to be banned in Monaco: what do the rules say?
The ban on single glazing in Monaco is an ambitious measure. By September 2028, single-glazed windows will have to be replaced in both existing and new buildings. The decision reflects the Principality’s commitment to reducing energy consumption, limiting heat loss and improving residents’ comfort all year round.
The aim is clearly to encourage owners to plan their renovation early, before the rules become mandatory. Switching to double glazing now means you can take advantage of a generous grant while avoiding the stress and cost of a last-minute upgrade.
Here is what will change for property owners and residents in Monaco between 2025 and 2028:
Ministerial Order 2025-407: a bigger grant for new windows
To help Monaco property owners through this transition, the Government has introduced the new Ministerial Order No. 2025-407, which strengthens and updates the scheme launched in 2020. The aim is to make the work more affordable and to speed up the replacement of single-glazed windows with better-performing solutions.
What has changed compared with Ministerial Order 2020-539:
- A higher cap per window, of up to €900 depending on the number of windows.
- The grant now also covers the common areas of residential and mixed-use buildings (new for 2025).
- The overall cap has doubled, from €20,000 to €40,000 per beneficiary.
- The scheme applies to buildings more than 10 years old, whether residential or mixed-use.
This welcome change means you can carry out more work while receiving a larger grant, and it encourages owners to plan their renovation now, ahead of the 2028 deadline.
Who is eligible for the grant?
The new Ministerial Order clearly sets out who can benefit from the scheme:
- Private owners: owner-occupiers or landlords, for homes located in Monaco.
- Co-ownerships and managing agents: all the owners in a building can benefit from the grant through the managing agent (syndic) or a legal representative.
- Property-owning legal entities: property holding companies (SCI), joint ownerships or other entities that own eligible buildings.
Key condition: to be eligible for the grant, the work must be carried out by a building company established in Monaco, such as Monaco Fenêtres.
The buildings concerned must have been completed at least 10 years ago and be residential or mixed-use (homes and business premises in the same building). The scheme also covers common areas, which is a major step forward for co-ownerships.
How to apply for the double glazing grant in Monaco
Getting financial help to replace your windows in Monaco is simple, as long as you follow the steps set out in the new Ministerial Order:
- Get a quote from a building company established in Monaco that specialises in custom-made windows, such as Monaco Fenêtres.
- Put together the grant application. Companies such as Monaco Fenêtres prepare the application on your behalf.
- Obtain official approval: the grant is only paid once the application has been approved.
- Carry out the work in line with the technical requirements and the agreed schedule.
- Receive the grant: once the work has been completed and signed off, the amount is paid to the beneficiary.
Upgrade your windows before 2028 with Monaco Fenêtres
Switching to double glazing is becoming an essential step for every property owner and co-ownership in Monaco. With the new Ministerial Order 2025-407, the Government is offering generous financial support to help you make the change.
By working with Monaco Fenêtres, you benefit not only from high-performance, beautifully finished materials, but also from full support with the paperwork, from the grant application right through to completion of the work.
Don’t wait until 2028! Take advantage of this exceptional grant today and protect both your comfort and your investment with Monaco Fenêtres.
Frequently asked questions
From September 2028, single-glazed windows will be banned in all existing and future buildings in the Principality of Monaco.
Private owners, co-ownerships, managing agents and legal entities that own residential or mixed-use buildings in Monaco that are more than 10 years old are eligible for the double glazing grant.
To qualify for the Monaco double glazing grant, the work must involve replacing single-glazed windows or French doors with high-performance (double-glazed) units, installed by a Monaco-based company.
Up to €900 per window, depending on the number of windows.
Overall cap per beneficiary: €40,000.
Monaco Fenêtres guides owners and co-ownerships through every step of the paperwork for the Government double glazing grant, from the initial quote to approval of the grant.
