Selling a property built before 1990 in the canton of Vaud
Since 2025, an EPC is mandatory on sale for these properties in Vaud. Without an EPC, the notarial transaction is blocked. Plan 6 to 8 weeks ahead of the signing date.
EPC certificate (CECB/GEAK) in Western Switzerland.
The EPC certificate and EPC Plus are issued by an I.ON accredited expert. This official document is required for the majority of cantonal grants related to energy renovation in Vaud, Geneva, Fribourg and Neuchâtel.
- Étude offerte sur site
- Devis détaillé sous 7 jours
- Subventions cantonales gérées
- Sans sous-traitance
Why an EPC
More than paperwork: a roadmap.
The EPC certificate has a reputation as an administrative formality. Many property owners see it as just another document to provide. That is a short-sighted view. The EPC Plus, and especially the advisory report that accompanies it, has become a genuinely useful tool for managing the energy renovation of a property.
On the projects we accompany, we regularly see EPC Plus reports that have radically changed the owner's decision. Someone who planned to insulate their façade discovers that the attic is the priority. Someone who wanted to replace their windows learns that their uninsulated attic makes that investment marginal. The real value of the EPC Plus is to overturn certain assumptions, sometimes dramatically.
10 years
Report validity
A → G
Energy rating scale
20 years
EPC Plus action plan
3–4 wks
Delivery turnaround
Our approach
From first contact to delivery.
Initial contact
First exchange by phone or email to understand your project: property sale, planned renovation, grants to anticipate. We offer a site visit slot within 2 to 3 weeks.
On-site visit
Our accredited expert spends 1 to 2 hours recording the building envelope characteristics: insulation, windows, roof, slab, thermal bridges. Photos and measurements on site. Collection of the last 3 years of energy bills.
Documentary analysis
Review of architectural plans, invoices and renovation history. Thermal calculations using the official EPC method. Modelling of variants for the EPC Plus.
Report drafting
Production of the certificate with envelope label (A to G) and overall energy label (A to G). For EPC Plus: 20-year action plan, three costed variants, cost and grant simulation.
Presentation and follow-up
Report presentation by video call or in person. Joint review of the prioritised works. If you proceed with renovation, we handle the cantonal grant application.
2026 pricing
Published rates.
Rates are the same regardless of canton, in line with the national EPC tariff schedule. The grant application is entirely free and included in our service.
| Service | Single-family house | Apartment block |
|---|---|---|
| EPC certificate (CECB) | 760 CHF | 840 CHF |
| EPC Plus (CECB Plus) | 1'860 CHF | 2'270 CHF |
| On-site measurement survey | 90 CHF | 180 CHF |
| Report presentation | 180 CHF | 180 CHF |
| Grant application | Free | Free |
Who is it for
Four situations that justify an EPC.
Applying for a cantonal renovation grant
Vaud, Fribourg and Neuchâtel require an up-to-date EPC Plus to process Buildings Programme applications. The EPC Plus must be dated less than 24 months before submission.
Planning an energy renovation over 5–15 years
The EPC Plus provides a costed roadmap. It prevents partial renovations in the wrong order (e.g. replacing windows before insulating the attic).
Buying a property and negotiating the price
Ask for the seller's EPC before making an offer. An F or G rating justifies a discount of 10 to 18 % on the market price, i.e. 80,000 to 200,000 CHF on an average house.
All building types
Our scope.
Single-family house
From mountain chalets to contemporary villas. All construction periods, from early 20th century to today. Turnaround 3–4 weeks.
Co-ownership building (PPE)
For the co-ownership or an individual unit. Collective EPC possible with per-unit breakdown. File often combined with a collective renovation project.
Commercial / professional building
Offices, workshops, retail. Calculation method adapted to the use. Turnaround and fee on request depending on size and complexity.
Listed or historic building
Specific approach taking into account ISOS and heritage constraints. Recommendations adapted to permitted interventions.
Our commitment
An accredited expert, not a subcontractor.
EnDK-accredited EPC expert
Registered by the Conference of Cantonal Energy Directors. Official methodology, signature recognised by all cantons.
Published, fixed rates
No hidden fees. The quoted rate is the invoiced rate. Travel costs included throughout Western Switzerland.
Grant application included
We handle the Buildings Programme grant application free of charge if a renovation follows the EPC energy audit.
Independence from installers
Our role as EPC expert is strictly independent: we receive no commission from the installers we may mention in the action plan.
Frequently asked questions
Everything about the EPC certificate.
What is an EPC certificate (CECB/GEAK)?
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The EPC certificate (CECB in French, GEAK in German) assesses the energy efficiency of a building's envelope and the amount of energy it consumes under standard use. It rates the building from A (very efficient) to G (very inefficient) on two scales: envelope and overall energy.
What is the difference between EPC and EPC Plus?
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The standard EPC provides the energy label and general recommendations. The EPC Plus adds a comprehensive advisory report with a three-variant action plan, cost and return-on-investment estimates, and detailed calculation of available grants. The EPC Plus is generally required to access significant grants.
What is an EPC used for?
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The EPC is mandatory to obtain most cantonal grants related to energy renovation (roof, façade, windows, heating). It also helps compare different renovation variants and avoid low-impact investments.
Is an EPC mandatory when selling a property?
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It depends on the canton. Vaud has required an EPC since 2025 for buildings constructed before 1990. Geneva, Fribourg and Neuchâtel have partially similar rules. Valais and Jura do not require an EPC on sale in 2026 but strongly recommend it.
How long does an EPC energy audit take?
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The on-site visit by an accredited expert takes 1 to 2 hours for a single-family house, 2 to 4 hours for a building. The expert records the envelope characteristics (insulation, windows, roof, slab) and collects energy bills. The report is delivered within 3 to 4 weeks.
How long is an EPC valid?
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An EPC remains valid for 10 years, provided no major modification affects the building's heating needs. For grants, an EPC of less than 24 months is often required, which may mean an update is needed.
Are CECB and GEAK the same thing?
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Yes, exactly. CECB is the French name, GEAK the German name of the same certification. The report produced is identical in structure and methodology. The language of the report can be adapted on request.
Can an EPC support the resale value of a property?
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Yes, and increasingly so. On the 2026 market, the price gap between an F–G rating and a C–D rating reaches 10 to 18 %. A good B or A rating justifies a market premium. Presenting the EPC Plus report with the action plan already implemented is a strong selling argument.
Who can issue an EPC?
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Only EPC experts accredited by the national umbrella association (the Conference of Cantonal Energy Directors). I.ON is registered as an accredited EPC expert for Western Switzerland. The official list is available online by canton.
Pour aller plus loin
Our EPC certificate guides
CECB
Le CECB est-il obligatoire en Suisse romande ? Règles canton par canton en 2026
Quand le CECB devient obligatoire en 2026 : règles spécifiques à Vaud, Genève, Fribourg, Neuchâtel, Valais, Jura. À la vente, à la rénovation, à la location.
Lire l'articleCECBComprendre son rapport CECB+ : lecture pas à pas
Comment lire un rapport CECB+ en 2026 : classes énergétiques, plan de mesures, variantes d'investissement. Le guide pour propriétaires en Suisse romande.
Lire l'articleCECBCECB ou audit énergétique GEAK : quelle différence en 2026 ?
Confusion fréquente entre CECB et GEAK : ces deux outils sont en réalité le même certificat. Explication complète, terminologie suisse romande et alémanique.
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