Dubach Construction Bois Sàrl
2827 Mervelier · about 49.5 km
Dubach Construction Bois Sàrl specializes in timber construction, roofing, and insulation services.
solubois.chRoof renovation · Lenzburg

At a glance
Small project
CHF 14'900 – CHF 34'200
Typical project
CHF 27'000 – CHF 59'500
Large project
CHF 45'100 – CHF 97'400
| Project | Quantity | Low | High | Per unit |
|---|---|---|---|---|
| Small project | 70 m² | CHF 14'900 | CHF 34'200 | CHF 300 |
| Typical project | 140 m² | CHF 27'000 | CHF 59'500 | CHF 300 |
| Large project | 245 m² | CHF 45'100 | CHF 97'400 | CHF 300 |
Computed with our estimator for Lenzburg (regional factor included), standard finish. Only the project size changes.
Included
Not included
In Lenzburg, the federal building register lists 1'562 residential buildings and 5'679 dwellings. These municipal benchmarks help put your home in context, but do not replace an individual assessment.
64 % built before 1980
Construction year does not reveal past renovations: check the current insulation condition.
45 % · Gas
This distribution describes recorded buildings, not your system's consumption or efficiency.
| Energy | Heating | Hot water |
|---|---|---|
| Gas | 45 % | 37.6 % |
| Heating oil | 17 % | 12.7 % |
| District heating | 11 % | 8.3 % |
| Heat pump | 22 % | 7.1 % |
| Electricity | 2 % | 30.3 % |
| Wood | 3 % | 2.2 % |
| Solar thermal | 0 % | 1.3 % |
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.
11.8 % of buildings mix housing with shops or offices.
For your renovation plans in Lenzburg, official building registry data provides vital insights. With 219 buildings listed under heritage protection, it is essential to contact the municipality early to clarify permit requirements. The median building volume is 820 m3, a figure based on 6 buildings measured according to the SIA 416 standard, indicating that data coverage is partial for this metric. Understanding these values helps you accurately assess the scale of your planned heating and insulation upgrades, ensuring you approach your renovation project with the correct regulatory expectations and realistic dimensional estimates from the start.
Source : OFS — RegBL (export communal complet). Existing residential buildings; percentages of recorded values.
Insulating the roof together with the covering is often eligible for the Buildings Programme. This approach allows you to limit energy loss and improve indoor comfort throughout the year.
In Switzerland, you may be able to take advantage of the Buildings Programme for your energy efficiency work. Always check the eligibility criteria for insulation measures.
A well-insulated roof drastically reduces your heating consumption, making it a profitable investment in the long term while actively participating in environmental protection efforts at the cantonal level.
If your roof is already equipped with solar panels, their removal and re-fitting must be budgeted for. These technical interventions require qualified professionals to ensure the tightness and proper functioning of the photovoltaic cells after the work.
Never underestimate the costs associated with these delicate manipulations, as they significantly influence your overall quote.
It is best to anticipate these needs during the initial planning phase with your roofer to avoid any unpleasant financial surprises during the construction work on your roof.
At altitude, snow loads and frost influence the material choice for your roof. It is crucial to choose resistant coverings capable of supporting the weight of accumulated snow without compromising the building structure.
Discuss with your contractor which solutions are best suited to local conditions in Lenzburg and the surrounding area. Choosing robust materials guarantees increased longevity for your roof against repeated climatic stress.
The expertise of a local roofer is valuable for selecting products that meet current safety standards while remaining efficient.
Roof renovation is a significant investment that requires complete transparency regarding costs. To avoid unexpected expenses, use our online RenoIndex estimator, which will provide an indicative price range for your project.
Whether you are in the research phase or ready to start the work, our estimates based on Swiss market averages help you establish a realistic budget.
Do not forget to ask for several detailed quotes from local companies to compare the services and guarantees offered by different contractors before making your final decision.
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.
2827 Mervelier · about 49.5 km
Dubach Construction Bois Sàrl specializes in timber construction, roofing, and insulation services.
solubois.ch2747 Seehof · about 52.8 km
Welibois S.A. is a company specializing in carpentry, joinery, insulation, and sawmill services.
welibois.ch2746 Crémines · about 56.6 km
Specialized company for painting, facade renovation, surface cleaning, and wood treatment for both interior and exterior residential projects.
malerei-top-demestre.com2746 Crémines · about 56.6 km
L.A Rénovation Lebrun offers versatile renovation services including painting, facade maintenance, and roof repairs.
lebrun-renovation-la.chSuggestions from the commercial register by distance and activity. Not an endorsement or partnership.
Generally, a simple renovation does not require a permit. However, if you change the exterior appearance, add roof windows, or change the material, check with your municipality. Rules may vary depending on protected zones.
The duration depends on the surface and complexity. A classic renovation often takes between one and three weeks. Weather conditions can influence this schedule. Ask for a precise estimate from your roofer when you receive your quote.
To get a quick and reliable estimate, use the free RenoIndex tool. It allows you to define a price range adapted to the Swiss market, helping you better prepare your budget before consulting with contractors.
Yes, the Buildings Programme supports thermal insulation measures. Check the current conditions at the cantonal level before starting your work, as subsidies are subject to strict energy efficiency criteria.