Widmer Construction Sàrl
2743 Eschert · about 7.7 km
Timber construction company specializing in framing, timber frame prefabrication, and carpentry work in Eschert.
widmersarl.chWindow replacement · Grenchen
Renovation: Window replacement in Grenchen
Window replacement in Grenchen is a key step to improve the energy efficiency and comfort of your home. Before starting, it is essential to plan your project well to avoid surprises. Whether you want to reduce heating costs or modernise your facade, rigorous planning is the key to success. To get an accurate cost estimate for your renovation, use the free RenoIndex estimator today to discover the current price range for your specific project requirements in the region.
At a glance
- Typical budget
- CHF 7'100 – CHF 17'100
- Midpoint
- CHF 11'500
- Grants found
- 0
- Nearby companies
- 4
Worked examples in Grenchen
Small project
CHF 4'600 – CHF 11'600
Typical project
CHF 7'100 – CHF 17'100
Large project
CHF 12'800 – CHF 29'900
| Project | Quantity | Low | High | Per unit |
|---|---|---|---|---|
| Small project | 4 units | CHF 4'600 | CHF 11'600 | CHF 1'900 |
| Typical project | 7 units | CHF 7'100 | CHF 17'100 | CHF 1'600 |
| Large project | 13 units | CHF 12'800 | CHF 29'900 | CHF 1'600 |
Computed with our estimator for Grenchen (regional factor included), standard finish. Only the project size changes.
Cost split (typical project)
- Labour : CHF 4'000 (35 %)
- Materials : CHF 6'300 (55 %)
- Other costs : CHF 1'100 (10 %)
What the price covers
Included
- Supply and installation
- VAT
- Frames, glazing and blinds according to answers, per window size; standard making good
Not included
- Permits and architect fees
- Unexpected structural issues
- Possible subsidies
- Sliding doors, roof windows, changes to openings
Grenchen's housing stock in figures
In Grenchen, the federal building register lists 3'013 residential buildings and 10'413 dwellings. These municipal benchmarks help put your home in context, but do not replace an individual assessment.
Age of residential buildings
68 % built before 1980
- Before 191910 %
- 1919–194516 %
- 1946–196024 %
- 1961–197011 %
- 1971–19807 %
- 1981–199010 %
- 1991–20008 %
- 2001–20105 %
- Since 20119 %
Construction year does not reveal past renovations: check the current insulation condition.
Main heating energy
52 % · Gas
- Gas52 %
- Heating oil29 %
- Heat pump15 %
- Wood3 %
- Electricity1 %
This distribution describes recorded buildings, not your system's consumption or efficiency.
Houses or apartment buildings?
- Single-family houses53.6 %
- Two-dwelling houses11.9 %
- Apartment buildings (3+)34.4 %
- Other0.1 %
9.9 % of buildings mix housing with shops or offices.
The typical building
- storeys (median)
- 3
- median footprint
- 125 m²
- median dwelling area
- 87 m²
Renovations, heritage and volumes
For your renovation projects in Grenchen, the official RegBL figures provide essential insights despite partial data coverage. With 4 buildings listed under heritage protection, it is crucial to contact the municipality early to navigate permit requirements. The median building volume of 755 m3, derived from a limited set of 4 measurements, helps define the scale for your insulation or heating upgrade plans. Since renovation years are not recorded and volumetric data is sparse, conducting an on-site assessment remains a necessary step to ensure your renovation budget and planning are accurate and reflective of your specific property.
4
buildings flagged as protected
status known for 177 of 3'013 buildings; check with the municipality
755 m³
median house volume (SIA 416)
measured for 4 of 1'616 houses
Source : OFS — RegBL (export communal complet). Existing residential buildings; percentages of recorded values.
Preparing your project
Good organisation starts with an accurate inventory. Count your windows by size, distinguishing between small models, standard formats, French doors, and large bay windows for a fairer price.
This categorisation allows for more realistic quotes when consulting craftsmen. Do not forget to check the condition of existing frames and the quality of the current glazing to determine if a full replacement or a simple refurbishment is necessary.
Use the RenoIndex estimator to gain a clear vision of the costs involved.
Aesthetic and legal considerations
The choice of materials and colours should not be left to chance. In protected areas or on facades visible from public space, the shape and colour of the frames may be imposed by local authorities.
It is therefore recommended to check municipal regulations before confirming your order. Respecting these prescriptions helps avoid costly disputes.
Also consider the overall architectural harmony of your building to enhance your property value while respecting the historical or contemporary character of the neighbourhood.
Subsidies and financial aid
Before starting work, check the specific conditions in the canton of Solothurn to see if your project is eligible for funding. Planning your work to include wider insulation could increase your chances of receiving grants.
Consult RenoIndex to get a budget estimate tailored to your situation.
Planning and project management
Success in window replacement relies on efficient coordination of stakeholders. Once the technical choice is made, be sure to request several quotes to compare offers. Verify that delivery times for new windows are compatible with your renovation schedule.
Regular site monitoring allows for adjusting finishing details and ensuring installation quality. By anticipating logistical constraints, you minimise disruptions during the work.
To refine your cost projections, the RenoIndex calculator remains an essential and free reference for all homeowners.
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
Freiburghaus et Cie
2743 Eschert · about 7.7 km
Specialized in carpentry, joinery, and timber construction since 1994, including renovations, extensions, and prefabricated elements.
boisfreiburghaus.chGirardin Stores Sàrl
2743 Eschert · about 7.7 km
Company specializing in the installation of blinds, aluminum shutters, garage doors, pergolas, and railings for new builds and renovations in Eschert.
girardinstores.chGallina - Ius S.A.
2603 Péry · about 8.9 km
Family-run joinery company Gallina-Ius SA in Péry manufactures and installs windows, fits kitchens and makes bespoke doors, cupboards and furniture.
menuiserie-gallina-ius.chSuggestions from the commercial register by distance and activity. Not an endorsement or partnership.
Frequently asked questions
Why are subsidies for windows limited?
Support programmes, often based on cantonal guidelines, favour comprehensive renovation of the building envelope. Replacing windows alone offers lower energy gains compared to full wall or roof insulation, which is why financial aid focuses on larger, more effective building envelope projects.
Do I need a permit to change my windows?
This is often necessary if your building is located in a protected area or if the external appearance of the facade is changed. It is recommended to check with the local urban planning department to understand the specific rules applicable to your neighbourhood.
How to estimate the cost of windows?
For a quick and reliable estimate, use the RenoIndex online calculator. It takes into account various parameters such as window type, material, and the complexity of the work, offering you an up-to-date price range for your renovation project.
Should triple glazing be prioritised?
Triple glazing is ideal for thermal insulation, especially if your building is already well insulated. However, its effectiveness depends on the overall quality of your building envelope. A renovation consultant can help you determine if this investment is suitable for your home.
Works often combined in Grenchen
Facade insulation cost in GrenchenRoof renovation cost in GrenchenHeat pump installation cost in Grenchen
Other works in Grenchen
Kitchen renovationBathroom renovationNew flooringInterior paintingRoof renovationFacade insulationHeat pump installationSolar panelsHome solar batterySolar water heatingTerrace constructionFence installationStairwell renovationElevator installation or upgrade