Dubach Construction Bois Sàrl
2827 Mervelier · about 40.3 km
Dubach Construction Bois Sàrl specializes in timber construction, roofing, and insulation services.
solubois.chRoof renovation · Aarau
Roof renovation in Aarau: Guide and tips
Renovating your roof in Aarau is a crucial step to ensure the durability and energy efficiency of your home. Whether you want to improve insulation or replace aging tiles, a well-prepared project is essential. In Switzerland, regular roof maintenance protects against harsh weather while increasing your property value. To get a precise, itemized cost estimate for your roofing work in the canton of Aargau, use the free RenoIndex tool and plan your budget with complete peace of mind today.
At a glance
- Typical budget
- CHF 27'000 – CHF 59'500
- Midpoint
- CHF 40'800
- Grants found
- 0
- Nearby companies
- 4
Worked examples in Aarau
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 Aarau (regional factor included), standard finish. Only the project size changes.
Cost split (typical project)
- Labour : CHF 20'400 (50 %)
- Materials : CHF 16'300 (40 %)
- Other costs : CHF 4'100 (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
Aarau's housing stock in figures
In Aarau, the federal building register lists 3'585 residential buildings and 11'819 dwellings. These municipal benchmarks help put your home in context, but do not replace an individual assessment.
Age of residential buildings
71 % built before 1980
- Before 191915 %
- 1919–194526 %
- 1946–196018 %
- 1961–19706 %
- 1971–19806 %
- 1981–19907 %
- 1991–20006 %
- 2001–20106 %
- Since 201110 %
Construction year does not reveal past renovations: check the current insulation condition.
Main heating energy
43 % · Gas
- Gas43 %
- Heat pump27 %
- Heating oil20 %
- District heating6 %
- Electricity2 %
- Wood2 %
This distribution describes recorded buildings, not your system's consumption or efficiency.
Heating and hot water: which energies?
| Energy | Heating | Hot water |
|---|---|---|
| Gas | 43 % | 22.7 % |
| Heating oil | 20 % | 10.3 % |
| District heating | 6 % | 2.9 % |
| Heat pump | 27 % | 18 % |
| Electricity | 2 % | 44.2 % |
| Wood | 2 % | 0.9 % |
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)63.8 %
- Heat pump27.2 %
- Heat exchanger (district)5.7 %
- Central electric heating2.2 %
- Condensing boiler0.5 %
- Stove0.5 %
A standard non-condensing boiler is usually older and less efficient.
Houses or apartment buildings?
- Single-family houses59.6 %
- Two-dwelling houses9.7 %
- Apartment buildings (3+)30.7 %
- Other0 %
12.4 % of buildings mix housing with shops or offices.
The typical building
- storeys (median)
- 2
- median footprint
- 120 m²
- median dwelling area
- 90 m²
Renovations, heritage and volumes
For your renovation plans in Aarau, federal building register figures are vital. With 467 buildings under heritage protection, it is crucial to contact the municipality early to address permit requirements. The median house volume is 800 m3, which serves as a key indicator for scaling insulation or heating upgrades. Please note that data coverage regarding volume is partial, as only 20 houses were measured according to the SIA 416 standard. We recommend verifying the precise dimensions of your specific property before starting any works to ensure your renovation budget remains accurate and effective for your project.
467
buildings flagged as protected
status known for 3'585 of 3'585 buildings; check with the municipality
800 m³
median house volume (SIA 416)
measured for 20 of 2'135 houses
Source : OFS — RegBL (export communal complet). Existing residential buildings; percentages of recorded values.
Energy optimization and insulation
Insulating the roof while changing the covering is a highly recommended strategy.
In addition to reducing your heating bills, this measure is often eligible for the Buildings Programme, a major Swiss financial support scheme aimed at improving the thermal envelope of existing buildings.
A well-insulated roof limits heat loss in winter and keeps the home cool during hot summers in Aarau. Before starting, check the current energy standards at the cantonal level.
Using high-performance insulation materials ensures better long-term efficiency while actively contributing to your building's energy transition.
Managing solar equipment
If you already have solar panels on your roof, their removal and reinstallation must be included in your renovation budget. These interventions require qualified professionals to avoid damaging the equipment or compromising the roof's waterproofing.
Take advantage of this disassembly to inspect the panels' condition and optimize their yield if necessary. Rigorous planning allows for coordinating these tasks with the roofing work, thereby minimizing delays and labor costs.
Anticipating these stages is essential for a successful project without unexpected financial surprises during your roof work.
Weather conditions and materials
The local climate directly influences the choice of materials for your roof. At altitude or in exposed areas such as parts of the canton of Aargau, heavy snow loads and frost can weaken traditional coverings.
It is crucial to select tiles or resistant materials capable of supporting these climatic stresses over the long term. Consult local technical recommendations regarding roof pitch and material robustness.
A roof adapted to the specific weather conditions of Aarau guarantees optimal protection for your home against leaks and premature wear through the seasons.
Preparation and budgeting
The success of a roof renovation depends on a precise cost estimate before you begin. There are many factors to consider: surface area, choice of materials, insulation, and labor costs. To avoid budget overruns, we advise you to use our RenoIndex tool.
It provides you with a price range tailored to the reality of the Swiss market. Once your budget is established, you will be able to select qualified contractors with confidence.
Cost transparency allows for better collaboration with professionals and ensures your priorities are met throughout the project.
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 43.9 km
Welibois S.A. is a company specializing in carpentry, joinery, insulation, and sawmill services.
welibois.chMalerei Top Demestre
2746 Crémines · about 47.7 km
Specialized company for painting, facade renovation, surface cleaning, and wood treatment for both interior and exterior residential projects.
malerei-top-demestre.comLA Rénovation Lebrun
2746 Crémines · about 47.7 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.
Frequently asked questions
How do I get a cost estimate?
Use the RenoIndex online calculator. It provides you with a price range in Swiss francs based on the specific details of your renovation project.
What are the benefits of insulating during renovation?
Insulating during roof renovation allows you to benefit from the Buildings Programme while permanently reducing your energy bills and your carbon footprint.
Do I need to declare the roof change?
For any major change to the exterior appearance or structure, always check local regulations with your municipality before beginning any work.
Does local climate influence tile choice?
Yes, in areas exposed to frost and snow, it is imperative to choose certified resistant materials to avoid premature damage.
Works often combined in Aarau
Other works in Aarau
Kitchen renovationBathroom renovationNew flooringInterior paintingWindow replacementFacade insulationHeat pump installationSolar panelsHome solar batterySolar water heatingTerrace constructionFence installationStairwell renovationElevator installation or upgrade