CityHero

The 31 best renovation companies in St. Gallen

avg 4.6 ★ · ranked by Hero Score · How do we rank?

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31 results
The podium

Key facts

CityHero lists 31 renovation companies in St. Gallen (as of October 2026), averaging 4.6 out of 5 Google stars. Number 1 in the Hero Score is Der Cleaner (5.0 stars, 48 reviews).

Listings
31
Avg. Google rating
4.6 / 5
No. 1 Hero Score
Der Cleaner
Reviews in total
938
1 more fact
Rated 4.5+
73 %

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

Renovation Companies in St. Gallen: what to know

Whether it's an older-building refurbishment, an extension or a modernisation after buying a flat, St. Gallen offers 31 Renovation Companies to choose from. Each listing shows specialisms and references so you can match the firm to your job. On average that's 4.6 out of 5 stars, with addresses in 9000 St. Gallen, 9014 St. Gallen and 9016 St. Gallen and beyond. Top-rated: Der Cleaner. Always request a detailed written quote with itemised positions, a payment schedule and references for comparable projects – that's how you spot hidden costs and judge experience rather than just the bottom-line price.

Related categories in St. Gallen

Renovation Companies in nearby towns

Renovation Companies by neighbourhood in St. Gallen

Grouped by postcode – areas with the most listings first.

Renovation Companies in 9000 St. Gallen

+ 7 more in the full list

Renovation Companies in 9014 St. Gallen

Renovation Companies in 9016 St. Gallen

Frequently asked questions

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

CityHero currently lists 31 renovation companies in St. Gallen, rated 4.6 out of 5 stars on average, with addresses in 9000 St. Gallen, 9014 St. Gallen and 9016 St. Gallen and beyond. Currently top-rated: Der Cleaner.

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

Of 17 listings with opening hours, 2 (12%) open on Sundays and 3 (18%) stay open until 8 pm or later on at least one weekday. 4 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 renovation companies?

Counted by postcode, most listings are in 9000 St. Gallen: 19, 9014 St. Gallen: 5 and 9016 St. Gallen: 4. The neighbourhood sections on this page show the addresses for each area.

How do I find a good renovation firm in St. Gallen?

On CityHero you can compare the 31 Renovation Companies in St. Gallen by rating, specialism and references. The easiest route is to send your request free of charge to up to two firms at once and choose based on the quotes you receive.

What does a renovation cost in St. Gallen?

Costs depend heavily on scope, the building's condition and your choice of materials – a light refresh sits well below a full gut renovation. You only get reliable figures from an on-site quote, so gather a few to compare.