Hauswirthsa Reviews 

2
•
TrustScore 3 out of 5

2.9

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2.9

Average

TrustScore 3 out of 5

2 reviews

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2.9

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(2)

2 reviews in the last 12 months

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Rated 1 out of 5 stars

Massive upselling and dishonest

Their website claims '6 generations since 1880' – but the commercial register shows the company was founded in 2009. They claim to employ only certified workers – but water leaks on brand-new installations prove otherwise.

Their practice: attractive quote to win the contract, then aggressive upselling. Final invoice often exceeds the signed estimate by more than 50%. The invoice runs dozens of pages with no clear link to the agreed quotes. Hours billed as a lump sum with no detailed timesheets.

Example: over 1,000 CHF charged just to install a basic washdown toilet – no unit included.

Defects are left unfixed. When customers report leaks on new installations, they are told to file an insurance claim and hire third-party contractors at their own expense.

Site supervision is negligent but billed at a premium rate. When customers request justification for these charges, the owner responds with insults and legal threats."

April 1, 2026
Unprompted review

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