TZ Stromag, Filiale Fiesch
3984 Fiesch · about 98.6 km
TZ Stromag is a full-service provider of electrical engineering, specializing in installations, telematics, automation, and switchgear construction.
stromag.chSolar panels · Altendorf

At a glance
Small project
CHF 10'000 – CHF 18'900
Typical project
CHF 18'500 – CHF 33'500
Large project
CHF 32'000 – CHF 56'800
| Project | Quantity | Low | High | Per unit |
|---|---|---|---|---|
| Small project | 5 kWc | CHF 10'000 | CHF 18'900 | CHF 2'800 |
| Typical project | 10 kWc | CHF 18'500 | CHF 33'500 | CHF 2'500 |
| Large project | 18 kWc | CHF 32'000 | CHF 56'800 | CHF 2'400 |
Computed with our estimator for Altendorf (regional factor included), standard finish. Only the project size changes.
Included
Not included
In Altendorf, the federal building register lists 1'312 residential buildings and 3'479 dwellings. These municipal benchmarks help put your home in context, but do not replace an individual assessment.
34 % built before 1980
Construction year does not reveal past renovations: check the current insulation condition.
33 % · Heat pump
This distribution describes recorded buildings, not your system's consumption or efficiency.
| Energy | Heating | Hot water |
|---|---|---|
| Gas | 15 % | 10.8 % |
| Heating oil | 31 % | 28.1 % |
| District heating | 2 % | 1.8 % |
| Heat pump | 33 % | 7.5 % |
| Electricity | 6 % | 38.7 % |
| Wood | 13 % | 8.9 % |
| Solar thermal | 0 % | 1.5 % |
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.
13.2 % of buildings mix housing with shops or offices.
For your renovation plans in Altendorf, federal building registry data provides vital insights for your budget. The median house volume is recorded at 1250 m3 according to the SIA 416 standard, which is essential for scaling heating and insulation requirements. Please be aware that data coverage is partial, as 800 buildings rely on other or unknown standards. Regarding heritage protection, information is missing for most of the housing stock. We strongly recommend contacting the municipal authorities early in your planning process to clarify any building restrictions or permit requirements before proceeding with your renovation project.
Source : OFS — RegBL (export communal complet). Existing residential buildings; percentages of recorded values.
Choosing solar panels in Altendorf turns your roof into a small power plant. Beyond the ecological impact, you are investing in a solution that significantly lowers your energy costs over the long term.
Profitability depends mainly on how much power you use on site, which encourages smarter management of your daily electricity usage.
By enhancing your property with modern technology, you are also preparing for future Swiss energy requirements while actively contributing to the local energy transition by utilizing a renewable and free power source directly from your own roof.
It is recommended to regularly check for updates regarding these federal grants before starting your work.
Good administrative preparation allows you to maximize the financial return of your project while ensuring your system meets the necessary technical requirements to fully benefit from the public support available for solar energy installations.
It is essential to check the current cantonal regulations to ensure your project meets all aesthetic and safety standards.
Working with local professionals who are familiar with the rules in the canton of Schwyz gives you peace of mind, avoids design errors, and ensures that your solar installation is fully compliant from the moment it is commissioned.
The success of a solar project depends on the prior analysis of your roof: orientation, slope, and the condition of the structure. Careful planning with experts will allow you to define the optimal power output.
Use RenoIndex to estimate costs based on your specific characteristics. Once the project is validated, the installation usually proceeds quickly thanks to modular mounting systems.
By choosing high-quality components, you ensure the longevity of your investment and constant energy production for decades, while simultaneously increasing the value of your home in Altendorf.
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.
3984 Fiesch · about 98.6 km
TZ Stromag is a full-service provider of electrical engineering, specializing in installations, telematics, automation, and switchgear construction.
stromag.ch2832 Rebeuvelier · about 107.5 km
Eco6therm specializes in the installation of heating systems, particularly heat pumps, and solar photovoltaic energy solutions.
eco6therm.ch2740 Moutier · about 111.4 km
Company in Moutier specializing in plumbing, heating (oil, wood, heat pumps), and solar thermal and photovoltaic solutions.
bmonnerat.ch2740 Moutier · about 111.4 km
Moutier-based company specializing in tinsmithing, roofing, ventilated facades, and solar panel installation.
zbinden-joye.chSuggestions from the commercial register by distance and activity. Not an endorsement or partnership.
For a standard single-family home, the technical installation on the roof generally takes between two and four days. However, the planning phase and administrative steps, such as the notification to the canton of Schwyz, can take a few weeks before the actual work on site begins.
Yes, an east or west orientation can also be very profitable, although the yield will be slightly different. Profitability depends mainly on how much power you use on site. Have a personalized study carried out to evaluate the actual potential of your specific roof.
Photovoltaic systems are extremely robust and require very little maintenance. Rain usually washes away dust, but a visual technical check every few years by a professional is advisable to ensure the proper functioning and safety of the entire system.
It's simple: use the RenoIndex estimator for free. By entering a few pieces of information about your roof and your needs, you will quickly get a realistic price range for your project in Altendorf, helping you to better prepare your renovation budget.