What is the Buildings Programme and how do you benefit from it?

The Buildings Programme is Switzerland's main subsidy scheme for the energy renovation of residential buildings. Co-funded by the Confederation and the cantons, its federal side is managed by PRONOVO AG (pronovo.ch). It subsidises insulation of the building envelope (facade, roof, cellar ceiling) and the replacement of fossil-fuel heating systems. To benefit: 1) check your eligibility on pronovo.ch, 2) submit an application BEFORE work starts, 3) have the work carried out by firms able to provide the required certificates, 4) send in the payment request within the deadline set by the programme after the work is finished.

What is the CECB certificate and what is it useful for?

The CECB (Cantonal Energy Certificate for Buildings) is the reference energy audit in Switzerland. It rates your building from A (very efficient) to G (inefficient), analyses the envelope, heating, ventilation and electrical installations, and proposes a personalised action plan (CECB Plus). The CECB is often required or valued for cantonal subsidy applications. It is carried out by an accredited expert (list on cecb.ch) and its cost depends on the size and complexity of the building. Part of that cost can be subsidised in several cantons.

Can you combine several subsidies for an energy renovation in Switzerland?

Yes, combining aid is in principle possible. You can combine the federal PRONOVO subsidy with cantonal aid, cantonal and federal tax deductions, green loans from certain banks (energy credit from some cantonal banks), and sometimes municipal aid. The limit is that the combined total cannot exceed the cost of the work. The exact rules vary from one canton to another: check with the cantonal energy office before submitting your applications.

What is the Minergie label and is it worth aiming for?

Minergie is the Swiss sustainable construction standard, with three levels: Minergie (standard energy efficiency), Minergie-P (passive standard) and Minergie-A (zero-energy standard). For a renovation, the Minergie-Renovation label is the most suitable. Advantages: access to higher subsidies in certain cantons (Vaud in particular), better value when you sell, improved indoor comfort. Drawbacks: extra building costs compared with a renovation without the label, and a paid certification process whose cost depends on the size of the building.

Is energy renovation work tax-deductible in Switzerland?

Yes. In Switzerland, renovation work that maintains the value of the property is deductible from taxable income for owner-occupiers and landlords. Energy-improvement work (insulation, window replacement, new heating) is also deductible as maintenance costs. Since 2020, cantons can also allow the deduction to be spread over several tax years for major renovations. The actual saving depends on your tax rate. Consult your canton's tax authority for the exact rules.

Energy Renovation Subsidies Switzerland 2026: Full Guide

Switzerland commits substantial resources to speeding up the energy renovation of its building stock. In 2026, an owner renovating a building can combine federal subsidies, cantonal aid, tax deductions and subsidised loans. This guide goes through the schemes available in French-speaking Switzerland, canton by canton, to help you identify the aid you may be entitled to and prepare the financing of your work.

The Buildings Programme: the federal foundation

The Buildings Programme is the central pillar of energy renovation aid in Switzerland. Managed by PRONOVO AG for the federal side, it covers two main categories of work on existing residential buildings:

Envelope insulation: facades, roofs, cellar ceilings, windows. The subsidy is calculated on the area renovated and depends on the type of wall and the U-value achieved
Replacement of a fossil-fuel heating system with a renewable energy source (heat pump, wood heating, district heating): the amount depends on the type of system and its output
Comprehensive renovation bonus: a comprehensive renovation carried out in several stages, backed by a CECB Plus plan, may qualify for a bonus on the standard subsidies

Measure	Federal subsidy	Condition
External facade insulation (ETICS)	Depends on area renovated	U ≤ 0.20 W/(m²K)
Roof / attic insulation	Depends on area renovated	U ≤ 0.17 W/(m²K)
Cellar ceiling insulation	Depends on area renovated	U ≤ 0.25 W/(m²K)
Window replacement (triple glazing)	Depends on area replaced	U ≤ 0.80 W/(m²K)
Air-to-water heat pump (replacing fossil fuel)	Flat rate depending on the system	COP ≥ 3.5
Ground-source heat pump (replacing fossil fuel)	Flat rate depending on the system	COP ≥ 4.0

The rates change regularly: check the current conditions on pronovo.ch and submit your application before work starts.

What makes the amount of a subsidy vary

Two similar projects can receive very different amounts of aid. Several factors come into play:

The canton and the municipality: each canton sets its own rates and annual budget, and some municipalities add their own support.
The performance achieved: the better the U-value of the wall or the COP of the installation, the more favourable the aid. A project that does not reach the required threshold is not subsidised.
The area or output involved: the subsidy follows the size of the project.
The type of building: residential, agricultural and municipal buildings do not always fall under the same programmes.
The timing: an application submitted after work has started is generally refused, and an exhausted cantonal budget may push the aid back to the following year.

Cantonal subsidies in each French-speaking canton

The French-speaking cantons supplement the federal Buildings Programme with their own programmes. Conditions vary considerably from one canton to another. Here is the situation in 2026:

Canton of Vaud (VD) — CVSE / DIREN

Vaud has one of the most comprehensive programmes in French-speaking Switzerland. The CVSE (cantonal energy subsidy programme) offers in particular:

A cantonal supplement for envelope insulation, added on top of the federal base
A bonus for buildings that obtain the Minergie label after the work
CECB support: partial subsidy of the cost of the energy audit
An emissions-reduction objectives programme for buildings that commit to an improvement process

Contact: energie.vd.ch / Energy Directorate (DIREN) — Lausanne

Canton of Geneva (GE) — SénerGie / OCEN

Geneva is the most ambitious canton in terms of energy transition. The OCEN (cantonal energy office) manages the SénerGie programme, which provides significant aid:

Facade insulation: cantonal aid that is added to the federal contribution
Ground-source heat pump: total aid among the highest in French-speaking Switzerland
Eco-Renovation programme: an annual budget envelope, which is why it pays to submit your application early in the year
Aid for buildings whose CECB energy class improves markedly (for example from D to B or better)

Note: Geneva’s cantonal budgets are often used up before the end of the year. Contact: ge.ch/ocen

Canton of Valais (VS) — SEFH

The Energy and Hydropower Service manages Valais aid. Valais enjoys some of the lowest electricity tariffs in Switzerland, which makes heat pumps and solar installations more attractive. Cantonal aid for insulation and renewable heating comes on top of the federal contribution. Contact: vs.ch/energie

Canton of Fribourg (FR) — EnerFRI / SdE

The EnerFRI programme (Energy Service, SdE) offers cantonal supplements, notably for rural municipalities where insulating older buildings is a priority. A Fribourg particularity: specific aid exists for agricultural and municipal buildings. Contact: fr.ch/energie

Cantons of Neuchâtel (NE), Jura (JU) and Bern (BE)

These cantons apply the federal contributions with more modest cantonal supplements. Neuchâtel has recently strengthened its aid for renovations reaching CECB class B or better. The canton of Bern (French-speaking part — French-speaking Bern, Bernese Jura) has the Energie Berne programme, one of the most comprehensive in German-speaking Switzerland, with attractive aid for insulation and renewable heating systems.

The CECB: the reference energy audit

The CECB (Cantonal Energy Certificate for Buildings) is the standard energy assessment tool in Switzerland. It rates your building from A to G and analyses the envelope, heating, ventilation and electrical installations. The CECB Plus goes further by proposing a personalised action plan with the priority measures and the corresponding subsidies.

The cost of a CECB depends on the size of the building, its age and how much information is already available (plans, energy bills). Most cantons partially subsidise this cost. The CECB expert is accredited and independent of the building firms. Find an expert on cecb.ch.

A CECB Plus is often required to access the Buildings Programme’s comprehensive renovation bonus. For any major energy renovation, the CECB helps you put the work in order, avoid measures that work against each other and miss no subsidy.

The Minergie label: worth it for a renovation?

The Minergie-Renovation label certifies that your renovated building reaches a high level of energy performance. To obtain it in a renovation, the requirements cover:

The thermal envelope (improved U-values according to SIA 380/1, the Swiss standard for thermal energy in buildings)
Controlled mechanical ventilation (dual-flow VMC with heat recovery)
The energy consumption index, which must stay below the threshold set for the Minergie standard

Concrete advantages of the label: access to green mortgage loans from certain banks, subsidy bonuses in certain cantons, better value when you sell. Certification is paid and its cost varies with the floor area of the building. Contact: minergie.ch

Before aiming for the label, compare the expected benefit (aid, comfort, value of the property) with the extra cost of the requirements, in particular dual-flow ventilation, which often requires additional work in an existing building.

Tax deductions for energy renovation

In Switzerland, renovation work is deductible at several levels:

Maintenance cost deduction: work that maintains or improves the energy value of the building is deductible from taxable income (rental income or imputed rental value)
Deduction spread over several years: since 2020, cantons can allow the deduction for a major renovation to be spread over several tax years, which lets you optimise the tax impact
Direct federal deduction: applicable to direct federal tax (IFD) on the same principles

The tax saving depends on your marginal tax rate, the canton and the amount of deductible work. Subsidies received are generally deducted from the deductible costs: ask your canton’s tax authority how it treats each case. This tax advantage can be combined with PRONOVO and cantonal subsidies.

Strategy for preparing your application

To make the most of the aid available for your energy renovation in Switzerland:

Step 1: Have a CECB Plus carried out (audit + action plan). This will give you an overall view of the priority work and the associated subsidies.
Step 2: Submit your subsidy applications on pronovo.ch and to your cantonal energy office before starting the work.
Step 3: Request quotes from several specialist firms (insulation, heating installation, roofing) and check that they can provide the certificates required for the subsidies.
Step 4: Assess whether the Minergie label makes sense in your canton (subsidy bonuses, subsidised loans).
Step 5: Keep all invoices and document the work for the tax deduction and for subsidy payment requests.

Updated 29 October 2026

Energy renovation in Switzerland: all the subsidies for 2026