Heat pump installation · Au (SG)

Heat pump installation in Au (SG): Complete guide

Are you planning to install a heat pump in Au (SG) to improve your energy efficiency? This green transition is a major decision for your home. Although the canton of St. Gallen encourages switching to renewable energy, every project requires careful planning according to local conditions. Before starting work, it is essential to assess your technical needs to ensure optimal long-term performance. Use our free RenoIndex estimator to get an accurate price range in Swiss francs for your renovation project today.
Heat pump installation – Au (SG)

At a glance

Typical budget
CHF 37'100 – CHF 69'100
Midpoint
CHF 51'900
Grants found
0
Nearby companies
4

Worked examples in Au (SG)

Small project

CHF 29'400 – CHF 53'700

Typical project

CHF 37'100 – CHF 69'100

Large project

CHF 48'600 – CHF 92'100

ProjectQuantityLowHigh
Small project80 m²CHF 29'400CHF 53'700
Typical project160 m²CHF 37'100CHF 69'100
Large project280 m²CHF 48'600CHF 92'100

Computed with our estimator for Au (SG) (regional factor included), standard finish. Only the project size changes.

Cost split (typical project)

  • Labour : CHF 20'700 (40 %)
  • Materials : CHF 25'900 (50 %)
  • Other costs : CHF 5'200 (10 %)

What the price covers

Included

  • Supply and installation
  • VAT
  • Heat pump and standard connections; removal and equipment only according to answers

Not included

  • Permits and architect fees
  • Unexpected structural issues
  • Possible subsidies
  • Drilling beyond 150 m, buried or contaminated tank, asbestos, insulation and new finishes
  • With air-to-air: hot water and ducts only if selected; adaptations beyond the options excluded

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.

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.

Technology choice and sizing

Sizing your future heat pump is a crucial step to ensure comfort and savings. In Au (SG), the local design outdoor temperature determines the power required to heat your building efficiently.

An oversized pump will run in short cycles, reducing its lifespan, while an undersized unit will struggle in extreme cold. It is recommended to have a heat loss calculation performed by a professional.

To estimate the budget required for this specialized equipment, consult the RenoIndex online estimator, which will provide you with a reliable estimate in Swiss francs.

Environmental and neighborhood considerations

When installing outdoor air-water systems, noise pollution must be taken into account. These units must strictly comply with noise limits toward neighbors to avoid disputes.

Strategic placement away from rest areas and the use of acoustic covers are common solutions. At the same time, it is advisable to check whether your neighborhood can be connected to a priority district heating network before finalizing your project.

RenoIndex supports you in this planning phase by helping you estimate the costs for your acoustic compliance work.

Planning and integration of work

The success of a thermal installation depends on good integration into the existing heating system. A heat pump is most efficient with low-temperature emitters such as underfloor heating.

If you have radiators, adaptation might be needed to maintain optimal efficiency. Planning work outside the heating season is ideal to avoid periods without thermal comfort.

To get a precise idea of the costs associated with your system integration, you can use the RenoIndex calculator, a reference tool for a transparent estimate in Swiss francs.

Technical expertise and budget

Using a certified professional is highly recommended for any heat pump installation. An expert will be able to assess technical feasibility, check access points, and ensure the chosen equipment is suited to your home's layout in Au (SG).

The budget can vary depending on the chosen technology and necessary electrical or hydraulic connection work. By using RenoIndex, you benefit from a cost estimate based on market standards, allowing you to better prepare your investment in Swiss francs.

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

F. Imeri Sàrl

2829 Vermes · about 162.7 km

The website presented under the name Imeri Chauffage et Sanitaire Sàrl offers plumbing, heating and solar thermal work, while F. Imeri Sàrl’s registered purpose refers to a scrap metal business.

imeri-sarl.ch

Sanit & Bilat Fils S.A.

2824 Vicques · about 166.8 km

Specialist since 1968 in sanitary installations, heating (gas, oil, wood, renewable energy), and tinsmithing with 24/7 emergency repair service.

sanit.ch

Buchwalder Sàrl

2824 Vicques · about 166.8 km

Buchwalder Sàrl in Vicques has specialized in the installation, repair, and renovation of heating and sanitary systems since 1966.

buchwalder-sarl.ch

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

Frequently asked questions

Do I need a permit for my heat pump?

In the canton of St. Gallen, most air-water heat pumps require a prior declaration or building permit. It is mandatory to check with your municipality before any purchase to ensure the location complies with local noise and zoning regulations.

How long does the installation take?

A typical heat pump installation generally takes three to five working days. This duration can vary depending on the complexity of the hydraulic connections and the need for additional electrical work. For more details on cost and time, please consult RenoIndex.

What are the advantages of a heat pump?

Heat pumps offer high energy efficiency and use renewable resources, thereby reducing your CO2 emissions and energy bills in the long term. It is a sustainable solution that increases the value of your property in the canton of St. Gallen.

Does the heat pump work in extreme cold?

Yes, modern models are designed to operate efficiently even in low temperatures. However, correct sizing based on the local design outdoor temperature remains essential to ensure constant performance during the region's harsh winters.

Works often combined in Au (SG)

Other works in Au (SG)

Heat pump installation in nearby towns