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Renovations & major works

Preserving today, building tomorrow.

Renovations & major works

Entrusting us with your works means relying on a dedicated team that turns each project into an opportunity to sustainably enhance your property.


Sustaining the value of your property requires, over time, carrying out thoughtful and ambitious interventions. Since 2016, our Energy & Major Works Unit has supported owners, condominiums and institutional investors in all their renovation projects in Western Switzerland.

Whether it is a comprehensive energy transition, a vertical extension or a technical rehabilitation, our specialists orchestrate every step with rigour — coordinating all the trades involved and guaranteeing complete financial and legal transparency.

From the initial feasibility study to the final handover, we turn the complexity of technical challenges into a smooth and structured journey.

A specialised team

Founded in 2016 to anticipate the major shifts in the building sector, our Unit combines rigour and technical know-how.

Its strength : a dual mastery — in-depth knowledge of existing buildings and advanced competence in energy management.

In a context where cantonal regulations are evolving rapidly, our specialists turn these constraints into genuine opportunities for property enhancement.


Our property renovation services

To support you from targeted interventions to the full transformation of your property, our approach is structured around three complementary pillars : planning, project management and energy management — for controlled, transparent and lasting support.

Feasibility study and planning

Preparing each project with rigour to secure your decisions.

  • Technical and energy assessment of the building
  • Budget study and strategic planning
  • Estimate of cantonal and federal subsidies
  • Decision support on the directions to favour

Project management and site supervision

A single point of contact to orchestrate your project from A to Z.

  • Needs analysis and financial study of the project
  • Financing advice and administrative procedures
  • Tenders and supplier selection
  • Site coordination and quality control
  • Handover of works and warranty follow-up

Energy management and transition

Anticipating regulations to sustainably enhance your property.

  • CECB / CECB+ energy audit
  • Advice on choosing sustainable solutions
  • Regulatory watch
  • Consumption optimisation and cost reduction

Dedicated expertise for the energy transition

ENERGIE 1
ENERGIE 2
ENERGIE 3

Anticipate, enhance, last

A driver of value

Drawing on specialised expertise since 2016, our specialists turn regulatory complexity into a clear action plan.

Driven by COP21 and the Energy Strategy 2050, cantonal regulations are profoundly redefining the requirements placed on existing buildings.

To guide you with precision, we rely on the following tools :

  • CECB / CECB+ diagnosis and energy labelling
  • Technical and energy monitoring with ImmoData© and ImmoLabel©
  • Solution planning with ImmoData Pro©

Our pragmatic approach helps you enhance your real estate portfolio over the long term.

The projects we support

To match the ambitions of your property, we intervene on a wide variety of projects, from targeted interventions to full rehabilitations.

Complete refurbishment, optimised external insulation, roof renovation and insulation upgrades to ensure the integrity of your building's envelope. Installation of thermal and photovoltaic solar panels.

Strategic replacement of obsolete or fossil-fuel installations with heat pumps, district heating connections or new-generation boilers, as well as the installation of Eco21 ventilation systems.

Complete renovation of lifts, compliance upgrades for risers (water, electricity) and installation of high-performance ventilation systems.

Refreshing of stairwells, entrance halls and circulation areas to enhance the first impression of your building.

Installation of high-quality double or triple glazing for optimal thermal and acoustic insulation of your apartments.

Architectural redesign of green spaces, inner courtyards and parking areas to sustainably enrich the living environment of residents.

Management of large-scale projects aiming at obtaining official certifications (HPE, THPE, Minergie) and overall environmental performance.


Our commitment to your works

Entrusting us with your works means relying on a specialised team integrated into our agency.

Our Delegated Project Management approach relieves you of the administrative and technical complexity, thanks to a network of recognised local craftsmen and engineers.

A dual competence — technical and energy — to turn legal constraints into opportunities for lasting enhancement.


Frequently asked questions about renovations and major works

The evolution of your property follows a natural cycle. Several indicators invite you to consider renovation works : the age of your building (major cycles generally occurring every 25 to 30 years), the need to maintain its envelope (façades, roof), or the desire to optimise your heating costs.

Moreover, the new cantonal environmental standards offer an excellent opportunity to anticipate the energy transition of your installations with peace of mind.

To turn these key milestones into drivers of value, our specialists are at your disposal to guide you with precision.

The CECB is an official document, standardised throughout Switzerland, which assesses the quality of the envelope and the overall energy performance of a building on a scale from A (highly energy-efficient) to G (low energy-efficient).

It has become an essential management tool, often mandatory under cantonal laws, to intelligently plan improvement works and prepare applications for state subsidies.

The financial structuring of a renovation can be considerably optimised thanks to the many subsidies offered by the cantons and the Buildings Programme of the Confederation.

For the remaining balance, you can draw on the renovation fund (within a condominium) or consider a targeted increase in your mortgage debt.

Our specialists support you with rigour in the preparation and validation of these financial plans.

Our support approach is structured in several sequential steps : carrying out an initial diagnosis and an energy audit, followed by a proposal of costed intervention scenarios.

Next come the submission of applications for permits and subsidies, then the launch of tenders to select the craftsmen.

Finally, our teams provide rigorous on-site project management, through to the careful handover of the works and the verification of construction warranties.

Driven by international climate agreements (COP21) and the Confederation's Energy Strategy 2050, cantonal regulations are becoming stricter.

They require, in particular, a drastic reduction in CO2 emissions, the progressive ban on replacing oil heating systems with similar fossil installations, and the obligation to improve insulation during major renovations.

We provide legal monitoring to keep your properties in full compliance.

The benefits of such an investment are multiple and lasting : a significant decrease in operating costs for you and your tenants, an undeniable improvement in thermal and acoustic comfort.

Add to this full compliance with future legal requirements (avoiding costly emergency works) and a direct financial enhancement of your property on the Western Switzerland real estate market.

Absolutely. Our Energy & Major Works Unit works in close collaboration with our condominium administration service.

We are fully familiar with the sometimes complex dynamics of general assemblies and support management committees in presenting clear and accessible projects.

Our goal : to facilitate decision-making by condominium owners and execute the approved works in full transparency.


Entrust us with your works

Would you like to plan the renovation of your building, carry out an energy audit or delegate the management of a large-scale project to trusted specialists ?

Our Energy & Major Works Unit is here to discuss your objectives and offer you a personalised preliminary study.

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