Mechanical winter maintenance works for Sonkakoti Oy properties 2026–2029

Summary

Sonkakoti Oy is procuring mechanised winter maintenance for 18 properties in the Sonkajärvi urban area, including snow clearance and gritting. The contract runs from November 2026 through June 2029. The work must meet the quality targets in the tender documents, including specified snow-clearance and anti-slip treatment deadlines; gritting sand is used, and de-icing chemicals are not. Transporting snow to a landfill and locally relocating or spreading snow piles are charged separately, as are other additional services identified in the offer form. Bidders must submit their offers through the HILMA electronic tender portal, state prices per winter season and keep their offers valid until 30 November 2026. The property list, map, quality targets and offer form define the work and submission details.