Smarter Insulation Starts with the Right Plan
Thermovena is a dedicated platform for Swiss homeowners who want to take control of their energy consumption and heating costs. We combine thermal performance analysis with practical, actionable guidance tailored to Switzerland's climate zones and building standards. Whether you own a detached house in the Mittelland, an apartment in a historic building in Geneva, or a chalet in the Alps, our tools adapt to your specific situation. We help you understand where heat is being lost, which upgrades deliver the best return, and how to prioritise your renovation roadmap. Our assessments are grounded in current Swiss energy regulations and MINERGIE standards, so every recommendation you receive is both technically sound and practically achievable. With Thermovena, reducing your energy bills and your carbon footprint becomes a structured, transparent process rather than a guessing game.
Thermal Envelope Analysis
We evaluate the insulating performance of your walls, roof, floor slab and windows to identify where heat loss is greatest. Our analysis references U-value benchmarks aligned with SIA 380/1 standards, giving you a precise picture of your building's thermal envelope. You receive a prioritised list of weak points and the estimated heat loss associated with each.
Heating System Efficiency
Beyond the building shell, the efficiency of your heating system plays a critical role in overall energy consumption. We assess boiler age, distribution losses, and control systems to determine how much energy is wasted before it even reaches your living spaces. Recommendations may include system upgrades, zoning improvements, or a switch to renewable heat sources.
Ventilation and Airtightness
Uncontrolled air infiltration can account for up to 30% of a building's heat loss, yet it is frequently overlooked in renovation planning. Thermovena's assessment includes an airtightness review and ventilation check to ensure that any insulation improvements are not undermined by draughts and unplanned air movement. We recommend mechanical ventilation with heat recovery where appropriate.
Energy Label and Benchmarking
We calculate your property's current energy performance rating and benchmark it against comparable Swiss buildings of similar age and type. This contextual comparison helps you understand not just your absolute consumption but how much room for improvement exists relative to current best practice. The resulting energy label can also support property valuations and subsidy applications.
Step-by-Step Renovation Roadmap
Thermovena structures your insulation and energy upgrade plan as a phased roadmap, so you can spread investment over time without compromising the overall result. Each phase is sequenced to avoid common pitfalls, such as upgrading heating before sealing the envelope, which can lead to oversized equipment and wasted expenditure. You always know what to do first, why, and what it will cost.
Cost and Payback Estimation
Every recommended measure comes with a transparent cost range based on current Swiss contractor pricing and an estimated payback period calculated from your actual energy tariffs. We factor in available federal and cantonal subsidies, including those under the Building Programme (Gebäudeprogramm), to give you a realistic net investment figure. This allows you to make informed decisions about which upgrades to prioritise.
Subsidy and Grant Navigation
Switzerland's subsidy landscape spans federal programmes, cantonal incentives, and utility-level rebates, and navigating it can be time-consuming. Thermovena maps the subsidies available for your canton and building type, and identifies which of your planned measures qualify. We provide the documentation checklist you need to submit successful applications.
Practical Insulation Guides
Our library of practical guides covers every major insulation measure in plain language, from external wall cladding and roof insulation to basement ceiling retrofits and window replacement. Each guide explains the technical principles, typical Swiss cost ranges, relevant building permit requirements, and the most common installation mistakes to avoid. Guides are updated regularly to reflect changes in Swiss norms and product availability.
Energy Saving Checklists
Beyond major renovations, there are dozens of low-cost behavioural and operational changes that can meaningfully reduce your heating bill in the near term. Our downloadable checklists cover thermostat settings, radiator maintenance, draught-proofing, and hot water system optimisation. Each checklist is specific to building type, so the advice you receive is relevant to your home rather than generic.
Glossary of Swiss Energy Standards
Terms like MINERGIE, SIA 380/1, Gebäudeprogramm, and U-value appear frequently in renovation discussions but are rarely explained clearly. Thermovena's glossary defines every key term in context, with references to the specific standards and what they mean for your renovation decisions. It is designed for homeowners, not engineers, so definitions are always grounded in practical relevance.