Solar water heating · Rothrist
At a glance
Small project
CHF 9'600 – CHF 22'600
Typical project
CHF 12'400 – CHF 28'800
Large project
CHF 17'000 – CHF 39'100
| Project | Quantity | Low | High | Per unit |
|---|---|---|---|---|
| Small project | 3 m² | CHF 9'600 | CHF 22'600 | CHF 5'200 |
| Typical project | 6 m² | CHF 12'400 | CHF 28'800 | CHF 3'300 |
| Large project | 11 m² | CHF 17'000 | CHF 39'100 | CHF 2'500 |
Computed with our estimator for Rothrist (regional factor included), standard finish. Only the project size changes.
Included
Not included
In Rothrist, the federal building register lists 2'117 residential buildings and 4'351 dwellings. These municipal benchmarks help put your home in context, but do not replace an individual assessment.
54 % built before 1980
Construction year does not reveal past renovations: check the current insulation condition.
44 % · Heating oil
This distribution describes recorded buildings, not your system's consumption or efficiency.
| Energy | Heating | Hot water |
|---|---|---|
| Gas | 2 % | 2.2 % |
| Heating oil | 44 % | 36.3 % |
| Heat pump | 43 % | 7.3 % |
| Electricity | 6 % | 49.2 % |
| Wood | 6 % | 2.5 % |
| Solar thermal | 0 % | 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.
8 % of buildings mix housing with shops or offices.
For renovation planning in Rothrist, official building registry figures indicate that 645 buildings are subject to heritage protection. Homeowners should contact municipal authorities early to navigate permit requirements for such properties. Regarding building volume, the registry covers 1556 houses using the SIA 416 standard; however, the data coverage is partial as no median volume is available. Consequently, owners must rely on individual assessments to accurately determine the scale of necessary heating or insulation improvements, as the provided registry statistics cannot currently offer a reliable average figure for your specific renovation project.
Source : OFS — RegBL (export communal complet). Existing residential buildings; percentages of recorded values.
Solar thermal collectors are an efficient solution for producing domestic hot water in your home. Generally, these systems cover a large part of your hot water needs during the summer, reducing the demand on your main boiler.
This technology converts solar radiation directly into heat.
To maximize the efficiency of your system in Rothrist, it is advisable to check the orientation of your roof and the inclination of the panels, to capture as much sunlight as possible throughout the year and ensure optimal performance.
It is common to want to combine solar thermal collectors with a modern heat pump. However, this combination requires a rigorous sizing study carried out by a qualified professional.
A well-proportioned system helps to avoid summer overheating while ensuring optimal support during the shoulder seasons.
The sizing takes into account your actual consumption, the storage volume of the buffer tank, and the technical characteristics of the chosen equipment. This approach ensures the sustainability of your investment.
Check RenoIndex for cost estimates related to installing combined systems and to compare configurations.
It is essential to find out about the grant conditions before starting work. Aid evolves regularly and depends on current cantonal guidelines. We recommend preparing your application in advance to avoid any rejection.
For a transparent estimate of your out-of-pocket costs after deducting potential grants, access our RenoIndex tool for free.
A successful installation relies on careful planning. Start by carrying out an energy audit of your building to determine if solar thermal is the most suitable solution for your current needs.
The choice of components, type of collectors, and storage capacity directly influence efficiency and maintenance costs. It is highly recommended to request several quotes from local companies to compare offers.
RenoIndex provides you with an objective overview to calculate your renovation project and move forward with confidence in your energy transition.
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 30.1 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 34.9 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 34.9 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 34.9 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.
In general, solar thermal installations integrated into or attached to roofs do not require a building permit, subject to compliance with cantonal regulations and zoning bylaws. We advise you to contact local authorities to confirm the regulations applicable to your specific plot.
The duration of the work depends on the complexity of your roof and the hydraulic system. A standard installation typically takes between three and five working days. The time required may vary if insulation work or replacement of the hot water tank is necessary at the same time.
High-quality solar thermal collectors are designed to last between 20 and 25 years. Regular maintenance, including checking the heat transfer fluid and the safety group, helps extend the lifespan of the system and maintain optimal energy performance throughout its operating period.
Yes, solar thermal collectors work even in cold weather as they capture solar radiation. However, efficiency is lower in winter due to the shorter hours of sunlight. This is why an auxiliary heating system is always necessary to ensure a constant supply of hot water.
