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The 37 best heating companies in St. Gallen

avg 4.3 ★ · ranked by Hero Score · How do we rank?

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Key facts

CityHero lists 37 heating companies in St. Gallen (as of October 2026), averaging 4.3 out of 5 Google stars. Number 1 in the Hero Score is Einstein St.Gallen (4.6 stars, 1’047 reviews). The highest Google rating (with at least 20 reviews) belongs to EDLux (5.0 stars, 24 reviews).

Listings
37
Avg. Google rating
4.3 / 5
No. 1 Hero Score
Einstein St.Gallen
Best Google rating
EDLux · 5.0
2 more facts
Reviews in total
3’200
Rated 4.5+
62 %

Source: CityHero directory, ratings via Google · as of October 2026.

Heating Companies in St. Gallen: what to know

There are currently 37 heating companies listed in St. Gallen on CityHero – from servicing your existing system to a full replacement with a heat pump. Compare the firms by rating and specialisation and request a no-obligation quote. On average that's 4.3 out of 5 stars, with addresses in 9000 St. Gallen, 9015 St. Gallen and 9016 St. Gallen and beyond. Top-rated: EDLux - Experten Dienstleistung Lux AG. Before any major work, ask for a written quote and request references, as well as advice on cantonal subsidies when switching to a renewable heating system.

Related categories in St. Gallen

Heating Companies in nearby towns

Heating Companies by neighbourhood in St. Gallen

Grouped by postcode – areas with the most listings first.

Heating Companies in 9000 St. Gallen

+ 5 more in the full list

Heating Companies in 9015 St. Gallen

Heating Companies in 9016 St. Gallen

Heating Companies in 9008 St. Gallen

Frequently asked questions

How many heating companies are there in St. Gallen on CityHero?

CityHero currently lists 37 heating companies in St. Gallen, rated 4.3 out of 5 stars on average, with addresses in 9000 St. Gallen, 9015 St. Gallen and 9016 St. Gallen and beyond. Currently top-rated: EDLux - Experten Dienstleistung Lux AG.

Which heating companies in St. Gallen are open on Sundays or in the evening?

Of 27 listings with opening hours, 0 (0%) open on Sundays and 1 (4%) stay open until 8 pm or later on at least one weekday. 3 are open on Saturdays. Current hours are shown on every listing; the «Open now» filter shows who is open right now.

Which parts of St. Gallen have the most heating companies?

Counted by postcode, most listings are in 9000 St. Gallen: 17, 9015 St. Gallen: 9 and 9016 St. Gallen: 5. The neighbourhood sections on this page show the addresses for each area.

How often should a heating system be serviced?

Annual servicing is recommended for most systems and safeguards efficiency and reliable operation. Many heating companies in St. Gallen offer maintenance contracts for this – compare the providers directly on CityHero.

What does a new heating system cost in St. Gallen?

The price depends heavily on the system – a heat pump usually runs into five figures, while a gas boiler is considerably less. Use CityHero to request up to two quotes from firms in St. Gallen with a single enquiry and compare the offers at your own pace.