Dubach Construction Bois Sàrl
2827 Mervelier · about 115 km
Dubach Construction Bois Sàrl specializes in timber construction, roofing, and insulation services.
solubois.chRoof renovation · Wil (SG)
Roof renovation in Wil (SG): A complete guide
Renovating your roof in Wil (SG) is a critical step for ensuring the long-term integrity of your home while improving thermal comfort. Given the changing weather conditions in the St. Gallen region, a roof in good condition protects against moisture and energy loss. Whether you are planning a complete replacement or a simple repair, thorough planning is essential. Use our free RenoIndex estimator to get an accurate price range in CHF and confidently budget for your upcoming renovation project in Wil.
At a glance
- Typical budget
- CHF 26'400 – CHF 58'300
- Midpoint
- CHF 40'000
- Grants found
- 0
- Nearby companies
- 4
Worked examples in Wil (SG)
Small project
CHF 14'600 – CHF 33'500
Typical project
CHF 26'400 – CHF 58'300
Large project
CHF 44'200 – CHF 95'500
| Project | Quantity | Low | High | Per unit |
|---|---|---|---|---|
| Small project | 70 m² | CHF 14'600 | CHF 33'500 | CHF 300 |
| Typical project | 140 m² | CHF 26'400 | CHF 58'300 | CHF 300 |
| Large project | 245 m² | CHF 44'200 | CHF 95'500 | CHF 300 |
Computed with our estimator for Wil (SG) (regional factor included), standard finish. Only the project size changes.
Cost split (typical project)
- Labour : CHF 20'000 (50 %)
- Materials : CHF 16'000 (40 %)
- Other costs : CHF 4'000 (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
Wil (SG)'s housing stock in figures
In Wil (SG), the federal building register lists 3'589 residential buildings and 11'915 dwellings. These municipal benchmarks help put your home in context, but do not replace an individual assessment.
Age of residential buildings
60 % built before 1980
- Before 191912 %
- 1919–19459 %
- 1946–196013 %
- 1961–197012 %
- 1971–198014 %
- 1981–199012 %
- 1991–200010 %
- 2001–201010 %
- Since 20118 %
Construction year does not reveal past renovations: check the current insulation condition.
Main heating energy
48 % · Gas
- Gas48 %
- Heat pump28 %
- Heating oil20 %
- 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 | 48 % | 36.1 % |
| Heating oil | 20 % | 15.1 % |
| Heat pump | 28 % | 24.3 % |
| Electricity | 1 % | 17 % |
| Wood | 2 % | 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)65.1 %
- Heat pump27.8 %
- Condensing boiler6 %
- Central electric heating0.7 %
A standard non-condensing boiler is usually older and less efficient.
Houses or apartment buildings?
- Single-family houses58 %
- Two-dwelling houses7.9 %
- Apartment buildings (3+)34.1 %
12.1 % of buildings mix housing with shops or offices.
The typical building
- storeys (median)
- 3
- median footprint
- 131 m²
- median dwelling area
- 93 m²
Renovations, heritage and volumes
For homeowners planning renovations in Wil, official register figures show that 467 out of 523 known buildings are under heritage protection. Engaging with the municipality early is essential to navigate permit requirements. Data coverage is partial as no information is available regarding the renovation year. Furthermore, the volume data for 2083 houses reflects standards other than SIA 416, and no median volume is recorded. Consequently, when calculating the scale of heating or insulation works, you should rely on professional site assessments rather than these register figures to ensure accurate planning for your specific property project.
467
buildings flagged as protected
status known for 523 of 3'589 buildings; check with the municipality
Source : OFS — RegBL (export communal complet). Existing residential buildings; percentages of recorded values.
Optimizing thermal insulation
When renovating a roof, energy efficiency must be a top priority. Insulating the roof at the same time as the covering is often eligible for support under the federal Buildings Programme.
This approach not only reduces your heating bills but also significantly boosts the resale value of your property. A well-insulated roof eliminates thermal bridges and provides a comfortable indoor climate year-round.
Do not forget to consult the RenoIndex estimator to get a realistic assessment of the costs associated with these specialized insulation works to plan your budget properly.
Integrating photovoltaics
Integrating solar panels into your roof is an attractive way to produce your own electricity. However, logistical requirements must be addressed in advance.
If you already have solar panels installed, their removal and subsequent refitting must be budgeted for during the roof covering replacement. This step, which is often overlooked, represents a significant cost that should be included in your initial quote.
Ensure that the roof structure can support the additional weight of the installation. RenoIndex helps you calculate the total costs including these specific technical elements for full transparency.
Adapting materials to the climate
The choice of roofing materials must meet local climatic requirements. At higher altitudes, snow loads and frost directly influence the durability of your roofing.
It is crucial to opt for resistant materials capable of withstanding these rigorous conditions without premature degradation. A poor choice can lead to high repair costs in the medium term.
Consulting with local professionals allows you to select solutions adapted to the specifics of the Wil region. Use the free RenoIndex comparator to price these quality options and obtain reliable, market-appropriate price ranges for your project.
Planning and budgeting
A successful renovation begins with realistic budgeting. Beyond replacing tiles, consider auxiliary costs such as scaffolding, disposal of old materials, insulation, and flashing work.
Thorough planning prevents unpleasant surprises and allows for phased work if necessary. Whether you are working with an architect or directly with a local firm, having a clear view of market prices is your best asset.
RenoIndex is the ideal tool for getting a quick, free estimate in CHF, allowing you to compare your quotes and make informed decisions for your roof renovation.
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
Welibois S.A.
2747 Seehof · about 118.4 km
Welibois S.A. is a company specializing in carpentry, joinery, insulation, and sawmill services.
welibois.chHallenbarter & Russi Gebäudetechnik AG
3988 Obergoms · about 119.8 km
Obergoms-based company specializing in sanitary installations, heating systems, roofing, and tinsmith work for new builds and renovations.
hallenbarter-russi.chMalerei Top Demestre
2746 Crémines · about 122.1 km
Specialized company for painting, facade renovation, surface cleaning, and wood treatment for both interior and exterior residential projects.
malerei-top-demestre.comSuggestions from the commercial register by distance and activity. Not an endorsement or partnership.
Frequently asked questions
Do I need a permit for roof renovation?
Generally, replacing the roof covering with identical materials does not require a permit. However, any structural changes, material changes, or the addition of dormers may make the project subject to authorization. Contact your municipality in Wil to check the local rules for your project.
How long does the work take?
The duration depends on the surface area, the complexity of the structure, and the weather. A standard renovation generally takes between one and three weeks. It is recommended to allow for a buffer in case of unexpected weather during the construction period.
Can one renovate in winter?
It is technically possible, but risky. Cold, snow, and humidity can complicate installation and impact materials. It is better to plan the work between spring and autumn to ensure optimal working conditions and drying.
How to estimate total cost?
The cost varies depending on the roof size and materials chosen. Use the free RenoIndex estimator to get a reliable price range in CHF with just a few clicks. This will help you refine your budget before requesting detailed quotes from contractors.
Works often combined in Wil (SG)
Other works in Wil (SG)
Kitchen renovationBathroom renovationNew flooringInterior paintingWindow replacementFacade insulationHeat pump installationSolar panelsHome solar batterySolar water heatingTerrace constructionFence installationStairwell renovationElevator installation or upgrade