The Energy Certification of Buildings is the document that evaluates and classifies the energy performance of a property, assigning a class ranging from A+ (most efficient) to G (least efficient).
In addition to indicating the classification, the certificate includes specific recommendations to improve energy efficiency and reduce consumption costs.
But did you know that energy certification is mandatory by law?
When is energy certification mandatory?
Since the enactment of Decree-Law No. 118/2013, energy certification is mandatory for:
- New buildings;
- Public buildings with an area equal to or greater than 250 m²;
- All properties being transacted (sale, purchase, or lease), regardless of area or purpose.
This means that any property placed on the market must present a valid Energy Certificate, issued by technicians properly qualified by ADENE - the Portuguese Energy Agency.
How the energy certification process works
At Enbiente, we ensure a fast, rigorous, and hassle-free process:
- Scheduling the technical visit – after your contact, we schedule the visit within 48 hours.
- Visit to the property – collection of all necessary data (building materials, HVAC systems, water heating production, etc.).
- Technical analysis and energy class calculation – according to the parameters defined by national legislation.
- Issuance of the Energy Certificate – delivered within 24 hours after the visit.
What determines the energy class?
The energy class results from the combination of multiple factors, including:
- Location and year of construction;
- Type and usable area (house, apartment, commercial building, etc.);
- Materials and insulation of walls, roofs, and floors;
- Quality of glazing and window frames;
- HVAC systems (heating, cooling, ventilation);
- Domestic hot water production systems (water heaters, solar panels, heat pumps, etc.).
The more efficient these elements are, the higher the assigned class – and the lower the energy consumption.
Advantages of having an up-to-date energy certificate
- Legal compliance required for the sale or lease of properties;
- Increase in market value and property attractiveness;
- Access to financing programs and incentives for energy efficiency;
- Identification of improvement opportunities and cost reduction;
- Contribution to environmental sustainability and the decarbonization of the construction sector.
How to request your energy certificate
It's simple.
Enbiente - Energia e Ambiente has qualified technicians to carry out the energy certification of your property, ensuring speed, transparency, and legal compliance.
Contact us now and obtain your energy certificate in record time.
Make your building more efficient, more sustainable, and more valuable.
