Oil heating out, house value up?

Energy-efficient refurbishment is often an attractive investment at the moment. If you take a smart approach to modernizing your heating system, you can save on operating costs, improve your carbon footprint and increase the resale value of your building.

September 2025

Simon Lüthi from Wüest Partner recommends renovating the house as soon as possible. Any time is the right time for the environment. Economically, it is particularly attractive if subsidies, tax savings and lower ancillary costs additionally support the increased market value.

Energy efficiency as a value factor
The demand for energy-efficient properties is increasing. Investors, funds and pension funds are paying attention to sustainability, often for regulatory reasons. Investments in energy efficiency increase the value of real estate in the long term. This is particularly the case when renovation and modernization coincide.

Tenancy law and urban regions
Energy-efficient refurbishment is also worthwhile in cities. The market there is particularly responsive to sustainable improvements. Refurbishment also protects against future legal requirements. However, local tenancy law regulations can restrict the possibilities for apportionment.

Replacing the heating system is a sensible step
If you need to replace your heating system anyway, you should switch from an oil system to a heat pump or district heating. A heating system replacement is usually due every 25 years anyway and covers the repairs at the same time. For many homeowners, simply replacing the heating system is the most economically attractive option.

Homeowners should start with a heating system replacement if the building envelope is intact. If the envelope is in need of renovation, it is worth combining the renovation of the roof, façade and windows with the replacement of the heating system.

Regulations, subsidies and expert opinions
Regulation is becoming stricter. The aim is to achieve a climate-neutral building stock by 2050. Subsidies and tax benefits make refurbishment profitable. If you are unsure, consult an expert for planning.

Financing and grey energy
Banks often offer more favorable mortgages for sustainable properties. In future, the focus will also shift to efficient cooling and the reuse of building components. Grey energy, i.e. the production energy contained in the building, is becoming increasingly important.

Replacing oil heating is a real added value. It offers lower heating costs and a higher house value, for today and tomorrow.

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