Maintenance and unblocking of sanitary pipework and sewers

Summary

The procurement is for maintenance and unblocking services for sanitary pipework and sewers in the Liège area. It is divided into two lots: the first covers individual and shared sewer systems serving residential buildings, up to the public sewer; the second covers shared sewers. Bids will be evaluated on price (60 points), the characteristics of the equipment used (20 points), the quality of reporting and follow-up (10 points), and staff flexibility (10 points). Bids must be submitted electronically by 8 October 2026 at 13:00 and remain valid for 180 days. A bidder may submit an offer for and be awarded both lots. Electronic invoicing is required during contract performance. Check the tender documents for the precise participation and qualification requirements.