Caillet Joël Sàrl
2805 Soyhières · about 17.5 km
Caillet Joël Sàrl is a Jura-based company specializing in tinsmithing, roofing, and waterproofing for roofs and facades.
caillet-ferblanterie.chRoof renovation · Therwil
Roof renovation in Therwil: A complete guide
Are you planning a roof renovation in Therwil? A roof in good condition is essential for waterproofing, energy efficiency, and the long-term value of your home. This major project requires rigorous planning and knowledge of local technical constraints. In this guide, we cover the key steps of your site. To get a quick and reliable cost estimate tailored to your project, use the free RenoIndex estimator now and refine your renovation budget without any further delay for your upcoming roofing works.
At a glance
- Typical budget
- CHF 28'300 – CHF 62'500
- Midpoint
- CHF 42'900
- Grants found
- 0
- Nearby companies
- 4
Worked examples in Therwil
Small project
CHF 15'600 – CHF 35'900
Typical project
CHF 28'300 – CHF 62'500
Large project
CHF 47'300 – CHF 102'300
| Project | Quantity | Low | High | Per unit |
|---|---|---|---|---|
| Small project | 70 m² | CHF 15'600 | CHF 35'900 | CHF 300 |
| Typical project | 140 m² | CHF 28'300 | CHF 62'500 | CHF 300 |
| Large project | 245 m² | CHF 47'300 | CHF 102'300 | CHF 300 |
Computed with our estimator for Therwil (regional factor included), standard finish. Only the project size changes.
Cost split (typical project)
- Labour : CHF 21'400 (50 %)
- Materials : CHF 17'100 (40 %)
- Other costs : CHF 4'300 (10 %)
What the price covers
Included
- Supply and installation
- VAT
- Covering, scaffolding, insulation and removal according to answers
Not included
- Permits and architect fees
- Unexpected structural issues
- Possible subsidies
- New roof structure, asbestos, roof windows and structural reinforcement
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.
Houses or apartment buildings?
- Single-family houses80.4 %
- Two-dwelling houses3.1 %
- Apartment buildings (3+)16.5 %
4 % of buildings mix housing with shops or offices.
The typical building
- storeys (median)
- 2
- median footprint
- 90 m²
- median dwelling area
- 98 m²
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.
Importance of thermal insulation
Insulating your roof during renovation is a strategic step to reduce your heating bills. In Switzerland, roof insulation carried out at the same time as the covering is often eligible for the Buildings Programme, which can lighten your overall investment.
High-performance insulation not only improves indoor thermal comfort in winter and summer, but it also increases the value of your property.
Take the time to compare the insulation materials available on the market to opt for a sustainable solution adapted to the climatic requirements of your region in the canton of Basel-Landschaft.
Handling existing solar panels
If your roof is already equipped with solar panels, their removal and reinstallation constitute an essential part of the budget.
These operations must be performed by qualified professionals to avoid damaging the equipment or compromising the roof's waterproofing. Take advantage of this removal to check the condition of the mounting systems and wiring.
It may be wise to coordinate this step with your roofer to optimize working time. Make sure to include these ancillary costs in your planning with the RenoIndex estimator to get a realistic and complete view of the costs.
Adapting to climatic conditions
The choice of roofing materials should not be left to chance. At various altitudes, significant snow loads and freeze-thaw cycles can durably influence the resistance of your tiles or covering elements.
It is crucial to select certified materials adapted to the specific constraints of the canton of Basel-Landschaft. An experienced roofer will be able to advise you on the best options to ensure the longevity of your roof against bad weather.
Do not hesitate to consult RenoIndex to obtain a price estimate based on quality materials adapted to your specific area.
Planning and budgeting the work
The success of a roof renovation rests primarily on rigorous budget planning. In addition to materials and labor, it is essential to anticipate unforeseen costs, construction waste disposal fees, and any necessary permits.
The canton of Basel-Landschaft has specific construction standards that must be respected. By using the free RenoIndex estimator, you benefit from a transparent approach to estimate your project's costs.
This allows you to prioritize investments, such as insulation or metalwork repairs, while keeping a clear view of your overall financial envelope.
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
Dubach Construction Bois Sàrl
2827 Mervelier · about 18 km
Dubach Construction Bois Sàrl specializes in timber construction, roofing, and insulation services.
solubois.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.chMCE Marti Sàrl
2824 Vicques · about 19 km
MCE Marti Sàrl, based in Vicques, carries out joinery, timber construction and cabinetmaking in the Jura region, including windows, doors, stairs, facades and ceiling insulation.
mcemarti.chSuggestions from the commercial register by distance and activity. Not an endorsement or partnership.
Frequently asked questions
How can I estimate the price of my roof?
The RenoIndex simulator allows you to quickly get a price range for your renovation project in Therwil, taking into account local specifics and your needs. It is a free, reliable, and user-friendly tool to better plan your budget before contacting contractors.
Do I need permits in Therwil?
Roof renovation projects may be subject to authorization depending on the scope of the work. It is advisable to inquire with the competent authorities of the canton of Basel-Landschaft to check if your project requires a building permit, especially in case of modification of the structure or external appearance.
Is insulation mandatory during renovation?
Energy efficiency requirements are governed by the standards in force in the canton of Basel-Landschaft. Although renovating the covering is the ideal opportunity to improve insulation, you should check current energy obligations with your municipality or an expert to ensure your work's compliance.
Should I remove my solar panels myself?
No, it is strongly advised against handling solar panels yourself. These installations require specific skills for safe disconnection and handling. Hire certified professionals for removal and reinstallation to avoid any risk of accidents or damage to your equipment.
Works often combined in Therwil
Other works in Therwil
Kitchen renovationBathroom renovationNew flooringInterior paintingWindow replacementFacade insulationHeat pump installationSolar panelsHome solar batterySolar water heatingTerrace constructionFence installationStairwell renovationElevator installation or upgrade