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What to check behind the bathroom finish
New fittings depend on existing services
A new tap or shower depends on the supply, drainage and surrounding construction. Ask the installer to explain accessible signs of wear, isolation valves, waterproof junctions and ventilation. Agree which parts are included in the offer and what will be inspected when concealed areas are opened.
Water and electrical work should be assessed by a qualified professional using the applicable requirements. Do not disconnect services or open walls to diagnose a problem yourself. Ask how the contractor will test the work and document any remaining issue before closing the finish.
This guide helps you prepare questions. The technical solution must be assessed in your home.
Further reading
Buildwise — Inloopdouches: waterdichting en keuze van de afwerking