Solar water heating · Aarau
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 Aarau (regional factor included), standard finish. Only the project size changes.
Included
Not included
In Aarau, the federal building register lists 3'585 residential buildings and 11'819 dwellings. These municipal benchmarks help put your home in context, but do not replace an individual assessment.
71 % built before 1980
Construction year does not reveal past renovations: check the current insulation condition.
43 % · Gas
This distribution describes recorded buildings, not your system's consumption or efficiency.
| Energy | Heating | Hot water |
|---|---|---|
| Gas | 43 % | 22.7 % |
| Heating oil | 20 % | 10.3 % |
| District heating | 6 % | 2.9 % |
| Heat pump | 27 % | 18 % |
| Electricity | 2 % | 44.2 % |
| Wood | 2 % | 0.9 % |
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.
12.4 % of buildings mix housing with shops or offices.
For your renovation plans in Aarau, federal building register figures are vital. With 467 buildings under heritage protection, it is crucial to contact the municipality early to address permit requirements. The median house volume is 800 m3, which serves as a key indicator for scaling insulation or heating upgrades. Please note that data coverage regarding volume is partial, as only 20 houses were measured according to the SIA 416 standard. We recommend verifying the precise dimensions of your specific property before starting any works to ensure your renovation budget remains accurate and effective for your project.
Source : OFS — RegBL (export communal complet). Existing residential buildings; percentages of recorded values.
Solar thermal collectors usually cover much of summer hot water, reducing dependence on primary heating systems during the sunniest months. This eco-friendly solution harnesses free renewable energy for your daily needs.
By installing these systems, you significantly improve your building's energy efficiency. Consider checking your roof orientation and the available sunshine in Aarau.
A properly sized system ensures long-term comfort while actively contributing to the Swiss energy transition and reducing your household's CO2 emissions through the efficient use of available solar energy.
Combining collectors with a heat pump needs a sizing study. It is crucial to match the water storage capacities with the surface area of the installed solar panels to avoid waste or underperformance.
A technical analysis helps define the actual need based on the number of occupants and average consumption. In Aarau, professional installers use simulation software to validate the system's profitability.
An optimized installation ensures that the heat pump supplement only activates when solar input is insufficient, thus extending the lifespan of your equipment and ensuring efficient overall operation.
Grants may vary depending on the type of technology and the overall performance targeted. Additionally, investments aimed at improving energy efficiency are often tax-deductible, which lowers the overall cost of your project.
Use RenoIndex to estimate baseline costs and then discuss financing options with a financial advisor or your installer.
Installing solar thermal panels is a complex operation that requires expertise in plumbing and energy systems.
A qualified installer in Aarau will guarantee not only compliance with safety standards but also the seal and durability of the mounting on your roof. Moreover, a certified installation is often a requirement to claim any potential cantonal grants.
By avoiding DIY, you protect yourself against infiltration risks and ensure optimal performance. Use our RenoIndex estimator to get a clear view of labor and material costs before requesting quotes from local companies.
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 44.3 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 48 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 48 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 48 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.
Spring and summer are ideal as weather conditions facilitate roof work. However, planning during winter makes it easier to hire contractors and obtain competitive quotes before the high seasonal demand kicks in.
Most integrated or roof-mounted solar installations do not require complex permits, but notification to local authorities is often necessary. Always check specific cantonal and municipal regulations before starting your project.
Yes, but with reduced output due to lower sunshine. The thermal system works year-round but mainly serves as pre-heating during the cold season, with the auxiliary heating taking over to reach the desired temperature.
Use the free RenoIndex estimator to obtain an indicative price range in CHF. This tool helps you plan your budget by taking into account the specific features of your energy renovation project in Aarau.
