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Zähis

Electrical contractor providing temporary power and cabling for construction sites, mainly in the Helsinki region

Vantaa, FinlandFounded 1999zahis.fiWebsite technologies

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Highlights

  • New on EvolcAdded 2026-10-29

About Zähis

Zähis Oy performs temporary construction-site electrification (työmaasähkö), fixed electrical installations and cabling, overhead line installations, pipe and concrete-wire heating, and site electrical maintenance. It also handles connections to grid operators on behalf of builders and developers, and assists with site power sizing and cable installation for permanent property connections.

Its customers are construction contractors and developers, mostly on large and mid-sized building sites in the Helsinki metropolitan area. The company works as an electrical installation contractor with authorisation for work up to 1000 V (A/S1R) and offers related training.

Zähis Oy was founded in 1999 and is registered in Vantaa, where its office is located. It also uses a warehouse in Tuusula. The company has received the top AAA credit rating from Bisnode D&B Finland annually.

Product: Temporary construction-site power, electrical installations and cabling, grid connections, overhead lines, heating systems and site electrical maintenance.

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