Hallenbarter & Russi Gebäudetechnik AG
3988 Obergoms · about 123.5 km
Obergoms-based company specializing in sanitary installations, heating systems, roofing, and tinsmith work for new builds and renovations.
hallenbarter-russi.chRoof renovation · Gossau (SG)
Roof renovation in Gossau (SG): Guide and cost estimates
Are you planning a roof renovation in Gossau? This project, crucial for your energy efficiency and home protection, requires careful planning. Whether you are replacing old tiles or improving insulation, accurate budgeting is essential. To get a precise price range tailored to your specific needs in the canton of St. Gallen, use our free RenoIndex estimator. We guide you through every step to ensure your roof project is a success, fully compliant with current standards and managed with complete peace of mind.
At a glance
- Typical budget
- CHF 26'400 – CHF 58'300
- Midpoint
- CHF 40'000
- Grants found
- 0
- Nearby companies
- 4
Worked examples in Gossau (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 Gossau (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
Gossau (SG)'s housing stock in figures
In Gossau (SG), the federal building register lists 2'643 residential buildings and 8'926 dwellings. These municipal benchmarks help put your home in context, but do not replace an individual assessment.
Age of residential buildings
58 % built before 1980
- Before 191922 %
- 1919–19454 %
- 1946–196010 %
- 1961–19709 %
- 1971–198013 %
- 1981–199011 %
- 1991–200013 %
- 2001–20108 %
- Since 20119 %
Construction year does not reveal past renovations: check the current insulation condition.
Main heating energy
35 % · Gas
- Gas35 %
- Heat pump31 %
- Heating oil25 %
- Wood6 %
- Electricity2 %
This distribution describes recorded buildings, not your system's consumption or efficiency.
Heating and hot water: which energies?
| Energy | Heating | Hot water |
|---|---|---|
| Gas | 35 % | 28.5 % |
| Heating oil | 25 % | 17.1 % |
| Heat pump | 31 % | 30.6 % |
| Electricity | 2 % | 16.5 % |
| Wood | 6 % | 2.6 % |
| Solar thermal | 0 % | 4.3 % |
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.
Type of heating system
- Boiler (unspecified)64.4 %
- Heat pump31.2 %
- Central electric heating2.2 %
- Condensing boiler1.4 %
A standard non-condensing boiler is usually older and less efficient.
Houses or apartment buildings?
- Single-family houses56.5 %
- Two-dwelling houses9.8 %
- Apartment buildings (3+)33.7 %
14.8 % of buildings mix housing with shops or offices.
The typical building
- storeys (median)
- 3
- median footprint
- 135 m²
- median dwelling area
- 95 m²
Renovations, heritage and volumes
For your renovation projects in Gossau, the RegBL data provides essential guidance despite partial coverage. Among the 2643 total buildings, 44 have known heritage status, with 18 officially protected; you should contact the municipality early to discuss permit requirements. Regarding building volume, the median figure is 795 m3, which helps determine the scale of potential heating or insulation work. Please note that this volume metric is based on only 9 measured buildings, as 1485 properties rely on different or unknown standards. Utilizing these figures allows you to plan your renovation more effectively while respecting local requirements.
18
buildings flagged as protected
status known for 44 of 2'643 buildings; check with the municipality
795 m³
median house volume (SIA 416)
measured for 9 of 1'494 houses
Source : OFS — RegBL (export communal complet). Existing residential buildings; percentages of recorded values.
Importance of combined insulation
When renovating a roof, it is strategic to consider thermal insulation. Insulating the roof together with the covering is often eligible for the Buildings Programme.
This synergy not only reduces your energy expenses in the long run but also allows you to benefit from federal or cantonal grants. By combining these works, you minimize labor costs related to scaffolding and site preparation.
To accurately estimate your project and compare the benefits of high-performance insulation, consult the free RenoIndex estimator today.
Integration and management of solar power
If your roof is already equipped with solar panels, their removal and refitting must be budgeted for. A roof renovation offers the perfect opportunity to optimize the existing photovoltaic installation or plan for a new one.
Ensure you hire qualified professionals to handle this sensitive equipment. Improper removal can compromise the tightness or the electrical function of the system. Plan this step carefully in your overall budget to avoid financial surprises.
For a clear view of costs including these technical aspects, use the RenoIndex estimator and get a price range adapted to your home.
Adaptation to climatic conditions
The geographical location of your building significantly influences the technical requirements for the roof. At altitude, snow loads and frost are key factors for the choice of covering materials and the supporting structure.
It is crucial to adapt the roof's strength and pitch to ensure optimal drainage of precipitation. Robust materials and reinforced waterproofing are essential investments for the durability of your home.
To find out the costs for these adaptations specific to your environment, RenoIndex offers a free and personalized estimate based on current standards.
Planning and professional support
A successful roof renovation requires rigorous coordination. Working with specialized local craftsmen ensures compliance with Swiss and local standards. They will advise you on the best solutions for your roof while ensuring safe implementation.
Before starting the work, it is highly recommended to compare several offers and carefully verify the content of the quote, especially regarding additional services.
Do not forget to visit RenoIndex to get a free price estimate before finalizing your financial and technical choices for your project in Gossau.
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 129.6 km
Dubach Construction Bois Sàrl specializes in timber construction, roofing, and insulation services.
solubois.chWelibois S.A.
2747 Seehof · about 132.7 km
Welibois S.A. is a company specializing in carpentry, joinery, insulation, and sawmill services.
welibois.chMalerei Top Demestre
2746 Crémines · about 136.4 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
What are the advantages of insulating the roof?
Insulating your roof significantly reduces heat loss, lowering your heating bills. It is also an excellent way to improve your indoor comfort in both summer and winter. Additionally, it is often a step eligible for support from the Buildings Programme.
Should I budget for solar panels?
Yes, if you already have panels, you must include the costs for removal and refitting by a professional in your renovation budget to ensure the tightness and proper functioning of your system after the work is complete.
How does the climate influence materials?
In regions prone to heavy snowfall or frost, it is necessary to choose resistant roofing materials and a structure capable of supporting significant loads. Proper insulation is also crucial to avoid moisture problems and ensure the roof's durability.
Where can I get a reliable price estimate?
To get a price range adapted to your project, you can use the free RenoIndex estimator. It provides data based on current standards, helping you plan your budget in a realistic and secure manner.
Works often combined in Gossau (SG)
Solar panels cost in Gossau (SG)Facade insulation cost in Gossau (SG)Window replacement cost in Gossau (SG)
Other works in Gossau (SG)
Kitchen renovationBathroom renovationNew flooringInterior paintingWindow replacementFacade insulationHeat pump installationSolar panelsHome solar batterySolar water heatingTerrace constructionFence installationStairwell renovationElevator installation or upgrade