Roof renovation · Au (SG)

Roof renovation in Au (SG): Guide and tips

Renovating your roof in Au (SG) is a major investment to ensure the watertightness and thermal efficiency of your home. Whether you want to replace aging tiles or improve insulation, this project requires careful planning. As a homeowner in the canton of St. Gallen, it is crucial to anticipate costs and technical constraints. RenoIndex supports you in this process by providing tools to estimate your budget accurately and successfully complete your renovations with complete peace of mind today.
Roof renovation – Au (SG)

At a glance

Typical budget
CHF 26'400 – CHF 58'300
Midpoint
CHF 40'000
Grants found
0
Nearby companies
4

Worked examples in Au (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

ProjectQuantityLowHigh
Small project70 m²CHF 14'600CHF 33'500
Typical project140 m²CHF 26'400CHF 58'300
Large project245 m²CHF 44'200CHF 95'500

Computed with our estimator for Au (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

Au (SG)'s housing stock in figures

In Au (SG), the federal building register lists 1'541 residential buildings and 4'070 dwellings. These municipal benchmarks help put your home in context, but do not replace an individual assessment.

54 %built before 1980
60 %heated by oil or gas
17.6 %electric hot water
6.5 %with declared solar thermal

Age of residential buildings

54 % built before 1980

  • Before 19197 %
  • 1919–19456 %
  • 1946–196012 %
  • 1961–197015 %
  • 1971–198014 %
  • 1981–19909 %
  • 1991–200014 %
  • 2001–201010 %
  • Since 201114 %

Construction year does not reveal past renovations: check the current insulation condition.

Main heating energy

38 % · Heat pump

  • Heat pump38 %
  • Gas32 %
  • Heating oil28 %
  • Wood2 %
  • Electricity1 %

This distribution describes recorded buildings, not your system's consumption or efficiency.

Heating and hot water: which energies?

EnergyHeatingHot water
Gas32 %21.3 %
Heating oil28 %21.2 %
Heat pump38 %32.8 %
Electricity1 %17.6 %
Wood2 %0.3 %
Solar thermal0 %6.7 %

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)60.4 %
  • Heat pump37.5 %
  • Condensing boiler0.9 %
  • Central electric heating0.8 %

A standard non-condensing boiler is usually older and less efficient.

Houses or apartment buildings?

  • Single-family houses71.5 %
  • Two-dwelling houses6.7 %
  • Apartment buildings (3+)21.8 %

10.1 % of buildings mix housing with shops or offices.

The typical building

storeys (median)
2
median footprint
127 m²
median dwelling area
94 m²

Renovations, heritage and volumes

For your renovation projects in Au, data from the federal building register indicates that at least 9 buildings are subject to heritage protection, requiring early coordination with the municipality to secure necessary permits. Please note that data coverage is partial for certain indicators: information regarding the year of renovation and building volume according to the SIA 416 standard is not available in the current records. We advise you to verify these technical specifications directly with local authorities before proceeding with modernization plans or insulation upgrades to ensure your project aligns with municipal requirements and building standards.

9
buildings flagged as protected
status known for 83 of 1'541 buildings; check with the municipality

Source : OFS — RegBL (export communal complet). Existing residential buildings; percentages of recorded values.

Thermal optimization and grants

High-performance insulation significantly improves indoor comfort throughout the year. When planning your work, remember to check federal requirements to benefit from available subsidies.

To obtain a realistic price range for your specific renovation project in Au, use the free RenoIndex cost estimator.

Handling solar equipment

Existing solar panels must be removed and refitted : budget for it. This expense item is often underestimated during initial planning. It is essential to hire qualified professionals to ensure that waterproofing is preserved when the modules are reinstalled.

By including these costs from the start, you avoid financial surprises. Use the RenoIndex estimator to anticipate these extra costs and get a reliable overview of the financing required for your complete renovation in Au (SG).

Adaptation to weather conditions

In Au, as in surrounding regions, weather conditions can vary. At altitude, snow loads and frost influence the choice of materials for your roof.

It is imperative to select robust products capable of withstanding freeze-thaw cycles and the weight of accumulated snow. A local professional can advise you on the most suitable materials to ensure the longevity of your installation.

Do not forget to consult RenoIndex to obtain a cost estimate based on the specifics of your roof project in the canton of St. Gallen.

Planning and budget

A successful roof renovation requires a structured approach. Start by performing a complete assessment of the current state of your roof structure and covering. Once needs are identified, request several quotes to compare services.

Transparency is the key to a successful project. RenoIndex helps you structure this step by providing an indicative price range for your project.

By mastering costs from the start, you optimize your investment while ensuring a durable and aesthetic result for your home located in the municipality of Au (SG).

Your project in 5 steps

  1. 1. Estimate

    Set a budget range with the estimator.

  2. 2. Grants

    Apply before work starts.

  3. 3. Quotes

    Compare at least 3 quotes.

  4. 4. Permit

    Check with the municipality whether a permit is needed.

  5. 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

Hallenbarter & Russi Gebäudetechnik AG

3988 Obergoms · about 143.1 km

Obergoms-based company specializing in sanitary installations, heating systems, roofing, and tinsmith work for new builds and renovations.

hallenbarter-russi.ch

Dubach Construction Bois Sàrl

2827 Mervelier · about 158.8 km

Dubach Construction Bois Sàrl specializes in timber construction, roofing, and insulation services.

solubois.ch

Welibois S.A.

2747 Seehof · about 161.9 km

Welibois S.A. is a company specializing in carpentry, joinery, insulation, and sawmill services.

welibois.ch

Malerei Top Demestre

2746 Crémines · about 165.6 km

Specialized company for painting, facade renovation, surface cleaning, and wood treatment for both interior and exterior residential projects.

malerei-top-demestre.com

Suggestions from the commercial register by distance and activity. Not an endorsement or partnership.

Frequently asked questions

What support is available for my roof in Au?

Support primarily depends on the Buildings Programme, which supports thermal insulation measures. Check the current conditions of the canton of St. Gallen to see if your energy-related renovation work is eligible for federal or cantonal funding before starting your project.

How do I estimate the cost of my work?

For a quick and reliable estimate of your roof renovation costs, use the free RenoIndex tool. It allows you to set a price range adapted to the specifics of your home in Au (SG) while taking into account local standards.

Should solar panels be removed?

Yes, if you are redoing the waterproofing or structure of your roof, the solar panels must be removed and reinstalled. This process requires the intervention of qualified professionals and must be included in your overall renovation budget from the start.

Are materials influenced by weather?

Absolutely. Resistance to frost and snow loads is crucial in the canton of St. Gallen. The choice of your tiles or insulation system must imperatively meet these climatic constraints to guarantee the durability of your roof.

Works often combined in Au (SG)

Other works in Au (SG)

Roof renovation in nearby towns