Buchwalder Sàrl
2824 Vicques · about 19 km
Buchwalder Sàrl in Vicques has specialized in the installation, repair, and renovation of heating and sanitary systems since 1966.
buchwalder-sarl.chHeat pump installation · Therwil
Heat pump installation in Therwil: A complete guide
Are you planning to install a heat pump in Therwil to improve your home's energy efficiency? Transitioning to renewable energy is a key step to lowering heating costs and reducing your carbon footprint. This guide walks you through the technical specifics and best practices to ensure your project succeeds. For a precise estimate of the costs tailored to your home, use our free RenoIndex estimator today and discover the options that best suit your specific requirements and home setup.
At a glance
- Typical budget
- CHF 39'700 – CHF 74'000
- Midpoint
- CHF 55'600
- Grants found
- 0
- Nearby companies
- 4
Worked examples in Therwil
Small project
CHF 31'500 – CHF 57'500
Typical project
CHF 39'700 – CHF 74'000
Large project
CHF 52'100 – CHF 98'600
| Project | Quantity | Low | High | Per unit |
|---|---|---|---|---|
| Small project | 80 m² | CHF 31'500 | CHF 57'500 | CHF 500 |
| Typical project | 160 m² | CHF 39'700 | CHF 74'000 | CHF 300 |
| Large project | 280 m² | CHF 52'100 | CHF 98'600 | CHF 300 |
Computed with our estimator for Therwil (regional factor included), standard finish. Only the project size changes.
Cost split (typical project)
- Labour : CHF 22'200 (40 %)
- Materials : CHF 27'800 (50 %)
- Other costs : CHF 5'600 (10 %)
What the price covers
Included
- Supply and installation
- VAT
- Heat pump and standard connections; removal and equipment only according to answers
Not included
- Permits and architect fees
- Unexpected structural issues
- Possible subsidies
- Drilling beyond 150 m, buried or contaminated tank, asbestos, insulation and new finishes
- With air-to-air: hot water and ducts only if selected; adaptations beyond the options excluded
Therwil's housing stock in figures
In Therwil, the federal building register lists 2'377 residential buildings and 4'862 dwellings. These municipal benchmarks help put your home in context, but do not replace an individual assessment.
Age of residential buildings
53 % built before 1980
- Before 19194 %
- 1919–19452 %
- 1946–19605 %
- 1961–197028 %
- 1971–198014 %
- 1981–199012 %
- 1991–200018 %
- 2001–201012 %
- Since 20116 %
Construction year does not reveal past renovations: check the current insulation condition.
Main heating energy
50 % · Gas
- Gas50 %
- Heating oil27 %
- Heat pump12 %
- District heating9 %
- Wood2 %
- Electricity1 %
This distribution describes recorded buildings, not your system's consumption or efficiency.
Heating and hot water: which energies?
| Energy | Heating | Hot water |
|---|---|---|
| Gas | 50 % | 43.2 % |
| Heating oil | 27 % | 13.3 % |
| District heating | 9 % | 8.7 % |
| Heat pump | 12 % | 11.5 % |
| Electricity | 1 % | 16 % |
| Wood | 2 % | 1.1 % |
| Solar thermal | 0 % | 6.1 % |
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.
Type of heating system
- Boiler (unspecified)78.2 %
- Heat pump12.4 %
- Heat exchanger (district)8.8 %
- Central electric heating0.6 %
A standard non-condensing boiler is usually older and less efficient.
Renovations, heritage and volumes
For your renovation plans in Therwil, the official RegBL figures provide essential guidance. With 715 buildings under heritage protection, it is vital to contact the municipality early to discuss permit requirements. Regarding building volume, the median is 782.5 m3. However, please note that this figure is based on only 16 properties measured according to the SIA 416 standard, while 1894 properties use other standards or are categorized as unknown. Consequently, data coverage for volume is partial. Furthermore, no specific data regarding the renovation year is recorded, which should be considered during your project assessment.
715
buildings flagged as protected
status known for 2'377 of 2'377 buildings; check with the municipality
782.5 m³
median house volume (SIA 416)
measured for 16 of 1'910 houses
Source : OFS — RegBL (export communal complet). Existing residential buildings; percentages of recorded values.
Planning and feasibility
Before any installation in Therwil, first check whether your area can connect to a priority district heating network. This option might be more advantageous depending on the local grid density.
Next, evaluate your building's thermal insulation, as a heat pump performs best in a well-insulated environment. Also, ensure the system is correctly sized.
The local design outdoor temperature determines the heat pump's capacity needed to guarantee your comfort throughout the year. Use the RenoIndex estimator to get a reliable price range before you reach out to local professionals for quotes.
Regulations and neighbours
While no specific municipal regulations beyond federal standards apply, it is highly recommended to choose a location away from living room windows or immediate neighbours.
A careful installation helps maintain good neighbourly relations while benefiting from a high-performance and quiet heating system. To anticipate your costs effectively, do not hesitate to consult our RenoIndex tool for a price estimate.
Energy management and performance
Optimizing your heat pump's performance is crucial for lowering your long-term energy bills. Combining it with low-temperature heat emitters, such as underfloor heating, is ideal for maximizing efficiency.
In Switzerland, the energy transition is supported by high standards for quality and sustainability. When choosing your model, check the seasonal coefficient of performance (SCOP).
The higher this number, the more economical your installation will be to operate. You can explore the various technologies available and get an estimate of investment costs via our RenoIndex online tool, which provides a price range tailored to your needs.
Budget and estimates
The cost of a heat pump installation depends on several factors, including the type of system (air-water, ground-water) and any necessary adaptation work required in your home.
In Therwil, as elsewhere, it is advisable to get several quotes from certified companies to compare offers. Also, remember to include ancillary costs such as electrical connections or modifications to the distribution system.
To avoid navigating blindly, use the RenoIndex calculator. This free service allows you to get a realistic price range for your project, making financial planning easier before you solicit professional tradespeople for final, detailed quotes.
Your project in 5 steps
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.
Grants and subsidies
No specific grant listed for this work. Maintenance tax deductions may still apply.
Companies in the area
Gyger Haustechnik
2824 Vicques · about 19 km
Gyger Haustechnik specializes in sanitary installations, heating systems, bathroom renovations, and tiling work.
gyger-co.chSanit & Bilat Fils S.A.
2824 Vicques · about 19 km
Specialist since 1968 in sanitary installations, heating (gas, oil, wood, renewable energy), and tinsmithing with 24/7 emergency repair service.
sanit.chDenis Paratte Sàrl
2822 Courroux · about 19.8 km
Based in Courroux, Denis Paratte Sàrl carries out sheet metal work, roofing, plumbing and heating installations, as well as repairs and renovations.
denisparatte.chSuggestions from the commercial register by distance and activity. Not an endorsement or partnership.
Frequently asked questions
Do I need a permit to install a heat pump in Therwil?
Yes, installing a heat pump generally requires a notification or a permit application to the relevant authorities. Check the specific requirements of the canton of BL regarding heat pumps, particularly concerning noise regulations and any potential ground drilling.
Is a heat pump suitable for older houses?
Yes, a heat pump can be installed in an older house, ideally after energy-efficient renovations. Better insulation reduces the required capacity, making the system much more cost-effective and efficient in daily operation.
Where can I find the estimated cost for my project?
You can get a realistic price range for your installation by using the free estimator available on RenoIndex. This tool is designed to help you plan your budget before requesting quotes from tradespeople.
Is heat pump noise an issue for my neighbours?
Yes, outdoor air-water heat pumps generate noise that must meet legal limits. Sensible placement, far from quiet areas, is essential to maintain peace with your neighbours in Therwil.
Works often combined in Therwil
Other works in Therwil
Kitchen renovationBathroom renovationNew flooringInterior paintingWindow replacementRoof renovationFacade insulationSolar panelsHome solar batterySolar water heatingTerrace constructionFence installationStairwell renovationElevator installation or upgrade