Riser Replacement in Tallinn — Apartment Block Pipe Reconstruction

Riser pipe replacement in an apartment building is a substantial and demanding plumbing project that requires careful coordination with all residents and the housing association. Torupro has completed full riser replacements in more than 80 apartment buildings across Tallinn and Harjumaa — we know exactly how to organise the work to minimise disruption to residents' daily lives. In Tallinn's older panel-block buildings, mainly constructed between the 1960s and 1990s, most of the original galvanised steel and cast-iron risers have deteriorated. Corrosion, scale deposits and worn fittings cause dripping leaks and reduced water pressure. A single burst can flood the floors of an entire storey. In such situations, patching a single leak is no longer sufficient — a comprehensive riser replacement is required. Work proceeds floor by floor: we perform a water shut-off, replace one riser section, restore the water supply and move on to the next floor. The daily water interruption is typically 2–4 hours. We notify all residents in writing at least 5 days before each interruption, giving everyone time to prepare. We use PP-R or PEX for water supply risers and PVC for drainage risers. These materials last at least 50 years, are scale-resistant and fully comply with Estonian building standards. Unlike galvanised steel, PP-R and PEX pipes never corrode. All materials are certified and we can provide their compliance certificates. Before work begins we hold a planning meeting with the housing association chair — explaining the work stages, sharing the schedule and answering all questions. Our project manager keeps the chair informed at the end of each working day and also coordinates water shut-off approvals with AS Tallinna Vesi. Before riser replacement we recommend a camera inspection of the drainage risers — this gives an accurate picture of the pipe condition and identifies whether additional repairs are needed, such as cracked inspection manholes or broken joints. This helps avoid unexpected problems that can extend the deadline. Our scope of work includes: demounting old pipes and disposing of them in accordance with regulations, installing new PP-R, PEX or PVC pipes, fitting shut-off valves at each floor, sealing penetrations with standard-compliant compound, pressure testing all connections and preparing full as-built documentation. The as-built documentation includes: drawings, material compliance certificates, pressure test records and a handover act. These documents are important for the housing association when updating the building's technical passport, making insurance claims and planning future renovation work. We serve housing associations across all Tallinn districts — Lasnamäe, Mustamäe, Põhja-Tallinn, Kristiine, Nõmme and Pirita. In Harjumaa we serve Rae, Viimsi, Saue, Keila and Maardu municipalities. Our experience spans five-storey Khrushchyovkas to nine-to-sixteen-storey large-panel and tower blocks. Housing associations can finance riser replacement through an association loan or a KredEx guarantee — many Tallinn associations use this option. Our specialists can assist with the financing application. Our guarantee on all work is 24 months. Request a free quotation — our specialist will carry out a free initial inspection and present a written proposal with a work schedule. Proper riser replacement is a long-term investment in the building's value and the comfort of every resident for the next half-century.