Solar water heating · Windisch
At a glance
Small project
CHF 9'200 – CHF 21'500
Typical project
CHF 11'800 – CHF 27'400
Large project
CHF 16'200 – CHF 37'300
| Project | Quantity | Low | High | Per unit |
|---|---|---|---|---|
| Small project | 3 m² | CHF 9'200 | CHF 21'500 | CHF 5'000 |
| Typical project | 6 m² | CHF 11'800 | CHF 27'400 | CHF 3'200 |
| Large project | 11 m² | CHF 16'200 | CHF 37'300 | CHF 2'300 |
Computed with our estimator for Windisch (regional factor included), standard finish. Only the project size changes.
Included
Not included
In Windisch, the federal building register lists 1'270 residential buildings and 3'800 dwellings. These municipal benchmarks help put your home in context, but do not replace an individual assessment.
75 % built before 1980
Construction year does not reveal past renovations: check the current insulation condition.
40 % · Heating oil
This distribution describes recorded buildings, not your system's consumption or efficiency.
| Energy | Heating | Hot water |
|---|---|---|
| Gas | 34 % | 29.7 % |
| Heating oil | 40 % | 29 % |
| District heating | 1 % | 0.3 % |
| Heat pump | 18 % | 9.7 % |
| Electricity | 4 % | 27.7 % |
| Wood | 3 % | 1.7 % |
Each line gives the share of buildings using that energy, separately for heating and for hot water. The two columns do not always reach 100%: some buildings combine two systems, or reported none.
A standard non-condensing boiler is usually older and less efficient.
7.8 % of buildings mix housing with shops or offices.
For renovation projects in Windisch, the federal building register (RegBL) identifies 260 out of 1270 buildings as protected heritage sites. If your property is classified, you must consult the municipality early regarding permits. Regarding building volume, data is partial as no values following the SIA 416 standard are available for the 837 residential buildings recorded. Furthermore, no data exists regarding the year of renovation for the 1270 buildings in this municipality. Due to these gaps in the register, homeowners should obtain specific building assessments independently to ensure accurate planning for their energy or structural upgrades.
Source : OFS — RegBL (export communal complet). Existing residential buildings; percentages of recorded values.
Installing solar thermal collectors is a sustainable investment for your home in Windisch. Solar thermal collectors usually cover much of summer hot water, thus significantly reducing your dependence on fossil fuels or electricity.
By using a free and renewable resource, you improve the energy performance of your building while saving on your monthly bills.
It is a concrete step for the environment that also increases the long-term value of your property while actively participating in the Swiss energy transition. Proper planning is the key to efficient year-round usage.
A high-performance installation requires a rigorous study of your roof and your needs. Combining collectors with a heat pump needs a sizing study to ensure optimal compatibility between the systems.
It is important to evaluate the slope and orientation of your roof to maximize solar yield. Working with certified professionals guarantees an installation that complies with current technical standards.
This design step helps avoid costly over-sizing while ensuring constant hot water production throughout the year, even during seasonal transition periods. A thorough analysis beforehand is crucial for the long-term profitability of your investment.
Although the initial cost may seem high, several financial mechanisms exist. Several cantons subsidise collectors per m² or per installation, which allows you to amortise your work faster.
We advise you to check with the energy department of the canton of Aargau to find out about the current support programmes. Investing in renewables is often encouraged to promote energy renovation of the existing building stock.
For a clear view of your overall budget, our RenoIndex simulator supports you by calculating an indicative price range for your specific project, allowing you to plan your investment with confidence.
The actual installation must be carried out by qualified companies to guarantee the safety and longevity of the system.
Once in place, solar thermal requires little maintenance, but regular checking of fluids and components is recommended to maintain optimal efficiency.
Maintenance every few years helps prevent premature wear of equipment and ensures the system continues to deliver maximum output.
By entrusting the installation and monitoring to local experts, you benefit from responsive service and technical expertise adapted to the climatic particularities of your region, protecting your investment over the long term.
1. Estimate
Set a budget range with the estimator.
2. Grants
Apply before work starts.
3. Quotes
Compare at least 3 quotes.
4. Permit
Check with the municipality whether a permit is needed.
5. Works
Follow the site and do a written handover.
No specific grant listed for this work. Maintenance tax deductions may still apply.
2829 Vermes · about 58.2 km
The website presented under the name Imeri Chauffage et Sanitaire Sàrl offers plumbing, heating and solar thermal work, while F. Imeri Sàrl’s registered purpose refers to a scrap metal business.
imeri-sarl.ch2824 Vicques · about 61.4 km
Buchwalder Sàrl in Vicques has specialized in the installation, repair, and renovation of heating and sanitary systems since 1966.
buchwalder-sarl.ch2824 Vicques · about 61.4 km
Specialist since 1968 in sanitary installations, heating (gas, oil, wood, renewable energy), and tinsmithing with 24/7 emergency repair service.
sanit.ch2824 Vicques · about 61.4 km
Gyger Haustechnik specializes in sanitary installations, heating systems, bathroom renovations, and tiling work.
gyger-co.chSuggestions from the commercial register by distance and activity. Not an endorsement or partnership.
Profitability depends on your hot water consumption and sunlight. By drastically reducing your reliance on paid energy during the summer months, you save over the long term. Use RenoIndex to estimate costs and compare with your current bills.
Most solar thermal installations on roofs are subject to a notification procedure. Always check with the municipal services of Windisch if a specific building permit is required for your building, especially if it is listed or located in a protected area.
Yes, but efficiency is lower in winter due to reduced sunlight. The system then acts as support for the main heating, which takes over to ensure a constant temperature. A combination with a boiler or a heat pump is ideal.
The surface area required depends on the number of residents and your hot water needs. On average, count about 1 to 1.5 m² of collectors per person in the household. An accredited installer will precisely size the installation during the preliminary study.
