Tenders Are Invited For Kontulankuja 3 Renewal Of Pipes Between Houses

2901 Kontulankuja 3Helsingin Kaupungin Asunnot Oy Is Asking For Bids Regarding The Replacement Of The Pipes Between The Buildings Of The Subject. The Work Is Described In More Detail In The Attachments Of The Request For Bids. The Object Of The Repair Is The 1965 Residential Apartment Buildings (A, B, C) Completed In 1965 Located At Kontulankuja 3, And The Pipelines And Distributions Between The Houses. The Site Was Previously Renovated In 1999. At The Site, It Has Been Necessary To Install Another Plot Water Pipe In Building C Due To The Poor Condition Of The Spaces Between The Buildings. The Building Automation Will Be Renewed At The Site As A Separate Project In 2026. Statements Have Been Requested From Hsy For The Work. The Site Is Demanding And Its Implementation Requires Special Skills And Experience, The Designated District Heating Work Kkl Foreman. The Work Is Performed In A Populated Place, The Work Requires The Construction Of Temporary Arrangements. Service Interruptions Must Be Minimized, Contractual Penalty. Summary Of Main Measures: The Repair Includes The Renovation Of Water Mains And District Heating Pipes To The Extent According To The Plans. Work Site Arrangements And Protection, Cleaning, Protective Structures, Waste Sorting, Resident Information And Occupational Safety. Heating Pipeline (Kl-First Distribution). Installing The Pipeline In The Yard Area Requires Significant Excavation Work By Wedging. In The Same Yard, Rainwater Diversions Are Being Repaired And Renewed.- The Contents And Insulation Of The Old Heating Duct Between The Houses Will Be Dismantled (Harmful Substances), The Duct Will Be Utilized In The Installation Of New Pipes.- Measures Will Be Carried Out In All The Heat Distribution Rooms Of The Houses (A, B, C) And In The Basement Of House B (E.G. Redoing Of The Breakdowns In The Basement, Fire Breaks, Restoration Of The Water Meter Room).- Domestic Water And Use During Working Hours Construction Of Distribution Houses (A,B,C)- The Plot Water Pipe Of Building A Will Be Renewed In Accordance With Hsys Statement And Plans, Including Work In The Public Street Area- The Plot Water Pipe Of Building C Will Be Dismantled And Plugged In The Street (!) In Accordance With Hsys Statement And Plans, Including Work In The Public Street Area During The Work, It Should Be Noted That The Gasum Gas Line Runs Near The Excavation Area And The Special Measures Related To It.-Aidatun Establishment Of Work Area, Demolition Of Yard And Play Equipment, Restoration And Inspections Of Yard And Play Areas- Demolition Of The Yard Stairs Of Building B And Construction Of New Ones, New Stainless Steel Handrail- Renovation Of Pressure Booster Stations Houses (A,B,C)- Comprehensive Airing Of Heating And Hv Circulation Systems Säh & Rau- Renewal Of The Supply Cable Between House A And B To The New Trench Between Houses- House B And C Optical Fiber And Telephone Cable Renewals/Transfers/Cable Extensions In Accordance With The Plans- Installation Of Grounding Electrodes In Trenches- Installation Of Automation-Related Cables To The Extent Shown In The Drawings- Renewal Of The Electrical Equipment In The Heat Distribution Room Of House B- Renewal Of The Electrification Of The Hvac Equipment In Accordance With The Drawings And Hvac Plans- Renewal Of Pole Lights And Cabling In The Yard Area Within The Scope Of The Plans In The Work Area- Necessary Tuning Of Independent Controls During Work (E.G. Old Vak Or Unit Controller)- Tuning Of District Heating Packages, Cooperation With Automation Renewal (Separate Rau Project) Work On The Site Should Start As Soon As Possible With The Signing Of The Contract, Estimated 05/2026. The Work Itself Must Be Completed During 2026. The Contractor Prepares The Work Schedule And The External Works Must Be Ready By 10/2026. The Contract Must Be Completed, Defects Corrected And Handed Over No Later Than 31 December 2026. The Tenderer Must Give The Total Contract Price (Vat 0%) In Accordance With The Tender Request And Its Appendices. The Tenderer Who Submitted The Most Economically Advantageous Tender Will Be Selected As The Contractor.