Solar water heating · Cham
At a glance
Small project
CHF 8'900 – CHF 20'800
Typical project
CHF 11'500 – CHF 26'600
Large project
CHF 15'700 – CHF 36'200
| Project | Quantity | Low | High | Per unit |
|---|---|---|---|---|
| Small project | 3 m² | CHF 8'900 | CHF 20'800 | CHF 4'800 |
| Typical project | 6 m² | CHF 11'500 | CHF 26'600 | CHF 3'100 |
| Large project | 11 m² | CHF 15'700 | CHF 36'200 | CHF 2'300 |
Computed with our estimator for Cham (regional factor included), standard finish. Only the project size changes.
Included
Not included
In Cham, the federal building register lists 1'866 residential buildings and 8'204 dwellings. These municipal benchmarks help put your home in context, but do not replace an individual assessment.
43 % built before 1980
Construction year does not reveal past renovations: check the current insulation condition.
35 % · Heating oil
This distribution describes recorded buildings, not your system's consumption or efficiency.
| Energy | Heating | Hot water |
|---|---|---|
| Gas | 22 % | 20.8 % |
| Heating oil | 35 % | 28.5 % |
| District heating | 6 % | 6.3 % |
| Heat pump | 30 % | 9.1 % |
| Electricity | 2 % | 22.8 % |
| Wood | 5 % | 4.3 % |
| Solar thermal | 0 % | 7.9 % |
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.
10.5 % of buildings mix housing with shops or offices.
For your renovation projects in Cham, these federal building register figures are vital. Heritage protection affects 496 known buildings, making early communication with the municipality for permits essential, while 1312 buildings are not classified. With a median volume of 928 m3 for the 803 houses measured according to the SIA 416 standard, you can better plan the scale of your insulation or heating works. Note that data coverage is partial, as only 3 buildings are precisely measured using this specific standard, with the remainder relying on other methods or being listed as unknown.
Source : OFS — RegBL (export communal complet). Existing residential buildings; percentages of recorded values.
Solar thermal collectors usually cover much of summer hot water, which significantly reduces the reliance on your main boiler during sunny periods. By investing in this solution in Cham, you reduce your long-term dependence on fossil fuels.
This is an environmentally friendly approach that increases your property value while contributing to the energy transition.
A well-sized system ensures increased energy independence for most of the year and provides protection against future energy price spikes.
Combining collectors with a heat pump needs a sizing study. It is crucial to evaluate your actual hot water needs and the orientation of your roof to guarantee maximum profitability.
In Cham, the chosen location on your roof must allow for optimal southern exposure. A professional will be able to determine whether the installation should be roof-integrated or mounted on top.
Careful planning helps avoid oversizing, ensuring a high-performance, long-lasting system for your home.
Although no specific local grants are listed for Cham, canton-level schemes may offer significant financial support for owners planning energy renovations. Check the official cantonal energy portals regularly for updates.
To estimate the total cost of your project and incorporate these potential subsidies, do not hesitate to use our RenoIndex tool.
A solar thermal system requires little maintenance, but an annual check-up by a professional is recommended to guarantee it functions correctly. This includes checking the heat transfer fluid pressure and the condition of the collectors.
In Cham, weather conditions can vary, making this maintenance useful to ensure the longevity of your equipment. Clean collectors and a properly purged system help maintain optimal efficiency throughout the year.
Take care to keep all your technical documents to facilitate the technician's work during regular visits.
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 74.6 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.ch2832 Rebeuvelier · about 79.5 km
Eco6therm specializes in the installation of heating systems, particularly heat pumps, and solar photovoltaic energy solutions.
eco6therm.ch2824 Vicques · about 79.6 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 79.6 km
Buchwalder Sàrl in Vicques has specialized in the installation, repair, and renovation of heating and sanitary systems since 1966.
buchwalder-sarl.chSuggestions from the commercial register by distance and activity. Not an endorsement or partnership.
Yes, collectors capture radiation even in winter, but efficiency decreases. Generally, they act as pre-heating for the water, with the main system then taking over. It is an ideal complementary solution throughout the year.
The area depends on your hot water consumption and the number of residents. On average, a typical residential installation requires between 4 and 8 m². A professional must validate these calculations based on your specific consumption profile.
With regular maintenance, solar thermal collectors can last between 20 and 25 years. The hot water storage system, however, may need replacement or servicing after about 15 years, depending on water quality.
It is recommended to contact the local building department in Cham. Although many solar installations are now simplified, specific rules may apply depending on the zone or if the building is protected.
