Building energy audit in Geneva and surroundings

Before investing in energy renovation works, you need to know where your building is losing energy, how much, and which interventions will deliver the best cost-effectiveness ratio. That is exactly the role of the energy audit. At Class Orga, we carry out comprehensive audits for owners, property managers and condominium boards in the Canton of Geneva, as part of our expertise in energy optimisation and CECB.

Our certified experts analyse the thermal behaviour of your building, measure actual consumption and model different renovation scenarios to give you a quantified and prioritised view of the works to consider.

Our energy audit services:

• Simplified audit: initial evaluation of the thermal envelope (walls, roof, windows, floors) to quickly identify the main sources of heat loss.
• Full SIA 380/1 audit: detailed modelling of heating needs according to SIA standards, with U-value calculation, thermal bridge analysis and overall energy balance.
• Comparative audit: simulation of several renovation variants (insulation, heating replacement, windows) with cost estimates, savings and achievable energy class (Minergie, THPE).
• Technical installations audit: targeted evaluation of heating, ventilation and domestic hot water production to detect waste sources and optimise efficiencies.
• CECB / CECB Plus report: issuance of the Cantonal Building Energy Certificate, with recommendations compliant with cantonal requirements and compatible with grant programmes.
• Action plan and prioritisation: ranking of works by energy impact and return on investment, with a budget schedule to spread interventions over time.

The audit is often the prerequisite for accessing cantonal grants (Building Programme, Eco21) and federal aid. We support you in preparing the file to maximise available aid and reduce the net cost of your works. The report we deliver is a true decision-making tool: clear, quantified and directly usable by your architect or property manager.