Flood and water extraction covers the emergency end of water damage restoration: pumping standing water out of basements, ground floors and flats, extracting moisture from carpets, floors and walls, and setting up drying equipment before mould or structural damage sets in. It's the work that follows burst pipes, sewer backups, storm surface water, and appliance failures across London's mix of the team terraces, basement flats and new-build blocks. We've listed 30 businesses in London offering this service, from small local operators to larger multi-crew firms.
What to look for
Response time matters more here than in almost any other trade. Water spreads and soaks in within hours, so ask how quickly a crew can actually get on site, not just what their office hours are. Beyond speed, look for firms that use moisture meters and thermal imaging to check hidden damp behind walls and under floors, not just wet-vacs on visible puddles. Proper drying takes days of monitored dehumidification, and a good company will document that process for insurance purposes. Check whether they're insurer-approved or work directly with loss adjusters, since this often speeds up claims and avoids disputes over scope of work.
How we score
Our rankings weigh response speed, equipment and drying methods, insurance handling, and verified customer feedback. For the full rundown of every firm compared side by side, see our ranked guide to water damage restoration services in London. Our scoring approach is explained in full on the methodology page.