At least 17 areas across Nairobi are set to experience a 24-hour water supply interruption, a notice issued by Nairobi City Water and Sewerage Company has said.
The disruption follows a leakage detected on the NCT Raw Water Pipeline near Kigoro Treatment Works.
In the statement, the utility firm issued cautioned residents of the impending disruption necessitated by emergency repair works on a critical bulk water transmission line.
“We wish to inform customers residing in the listed areas of a temporary water supply interruption caused by leakage on the NCT Raw Water Pipeline near Kigoro Treatment Works,” the statement read.
The interruption is scheduled to begin on Saturday, June 20, 2026, at 6:00 a.m. and end on Sunday, June 21, 2026, at 6:00 a.m.
This represents a full 24-hour shutdown period to allow engineers to carry out repairs and restore system integrity.
According to Nairobi Water, the shutdown has been necessitated by the need to fix a leakage on a key raw water pipeline that feeds treatment and distribution systems serving Nairobi and surrounding regions.
“Our technical teams will work to restore supply as soon as repairs are completed,” the utility agency said, adding that efforts are already underway to ensure the affected section is repaired within the stipulated timeframe.
The company further urged residents to take precautionary measures ahead of the interruption, advising households and businesses to prepare accordingly.
“Customers in the affected areas are advised to store sufficient water for domestic and commercial use ahead of the shutdown,” the notice stated.
The 17 affected zones cut across key residential, commercial, and peri-urban areas, including high-density neighbourhoods such as Kibera, Kawangware, and Kangemi, as well as middle-and high-income zones like Kilimani, Lavington, Karen, and Westlands.
Also affected are satellite service areas such as Ruai, Kamulu, and Ngong Road corridors, alongside institutional and administrative zones like Upperhill and Madaraka.
Regional bulk water service providers, including Mavoko Water and Sewerage Company and Oloolaiser Water and Sewerage Company, are also set to experience downstream effects.
Nairobi City Water and Sewerage Company assured customers that restoration will begin immediately after completion of the works.
The utility reiterated its commitment to service reliability, stating that the maintenance exercise is aimed at improving the long-term performance of the water supply network.
“Our technical teams will work to restore supply as soon as repairs are completed,” it reiterated.
The company has also activated its toll-free customer care line 0800 724 366, which will remain operational throughout the repair window to handle inquiries and emergency reports.
