Double glazing mandatory? What the law says about rental properties

Double glazing mandatory? What the law says about rental properties
Since the 2019 Energy and Climate Act, rentals must have double glazing when the DPE classification is F or G, and landlords have until January 1, 2028 to comply.

Energy efficiency in homes is a key concern: since the Energy and Climate Act (2019), landlords must reduce the energy consumption of their properties. For homes rated F or G in the DPE (thermal sieves), installing double glazing is gradually becoming mandatory. In this guide, YES GLASS explains the legal deadlines, the work involved, and the financial assistance available to help you comply.

The legislative framework and deadlines

Energy and Climate Act (2019)

  • Objective of renovating 500,000 thermal strainers per year
  • Gradual ban on the rental of DPE F from January 2025 and G from January 2028

Schedule of obligations

Due date DPE class concerned Obligation
January 2025 F No longer offer a new lease
January 2028 G No more G accommodation rented
2025–2028 F and G Carry out renovation work

Double glazing is often an essential measure to achieve a DPE ≥ E.

Why double glazing?

Reinforced thermal insulation

  • Reducing losses through windows: up to 15% heating savings
  • Improved interior comfort (reduced cold walls)

Sound insulation

  • Attenuation of external noise (up to 32 dB for standard double glazing)
  • Marketing asset for tenants in noisy urban areas

Works and standards to be respected

Type of glazing and installation

  • Standard 4/16/4 double glazing for high-performance energy performance
  • Low-E option for optimum DPE
  • Installation according to NF DTU 39 to guarantee watertightness and performance

Declaration and authorizations

  • In co-ownership: agreement of the assembly if modification of facade
  • In a protected area (ABF): opinion of the Architect of Buildings of France

Available aid and funding

MaPrimeRénov' and CEE

  • MaPrimeRénov' » up to 80% of the cost of windows for low-income households
  • Energy Saving Certificates (CEE) : additional bonus

Eco-loan at 0% interest

  • Interest-free loan of up to €30,000 for overall insulation

Reduced VAT

  • VAT at 5.5% on supply and installation for energy renovation work

Best practices for lessors

  1. Preliminary energy assessment : validate the DPE impact of double glazing
  2. Grouping of work : combine wall and attic insulation to optimize aid
  3. Choosing a certified RGE (Recognized Environmental Guarantor) professional for eligibility for subsidies
  4. Planning : start work 18 months before the legal deadline

Conclusion

To comply with the Energy and Climate Act and keep your properties rented, double glazing is often essential, especially for F or G rated properties. Thanks to the numerous financial aids and support from YES GLASS , you can plan and carry out your work with peace of mind, while offering your tenants more comfortable and less energy-intensive accommodation.

👉 Contact us for a free quote and personalized support.

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