Sump & Drainage Pump Installation London

Sump pump repair, replacement and installation

A sump pump keeps groundwater out of a basement, and the moment it stops the water level becomes visible on the floor. Faults are usually a jammed or tethered float switch, a blocked impeller, a failed capacitor or a pump that has simply reached the end of its life after years of continuous duty. We repair where the pump is serviceable, replace where it is not, and on any critical basement we recommend a duty/standby arrangement with an independent alarm so a single failure does not cause a flood.

• Basement sump pump repair and emergency attendance
• Float switch, capacitor and impeller faults
• Sump pump replacement sized on the inflow
• New sump and pump installation with duty/standby

Sewage pump repair and replacement

Sewage pumps handle solids, so blockages, rag binding on the impeller and seal failures dominate. Symptoms include a chamber that will not empty, a pump that runs continuously without lowering the level, tripping electrics, or a persistent smell around the chamber lid. We lift, clean and inspect the pump, free or replace the impeller and mechanical seal where the unit justifies it, and replace with a correctly rated cutter or vortex pump where repeated blockages show the original was under-specified.

• Chamber not emptying or pump running continuously
• Rag and solids binding cleared from the impeller
• Mechanical seal and bearing replacement
• Cutter or vortex pump specified where blockages repeat

Lifting stations and pumping station maintenance

Packaged lifting stations serving basement kitchens, washrooms and whole blocks need scheduled attention or they fail at the worst moment. A maintenance visit covers pump-out and chamber clean, impeller and seal inspection, float and pressure level control testing, non-return valve checks, duty/standby changeover proving, alarm testing and a written condition report. We hold service schedules for managing agents and facilities teams across London and provide priority response for sites under contract.

• Lifting station repair and emergency response
• Pumping station maintenance schedules and reports
• Duty/standby changeover and control panel testing
• Non-return valve and rising main checks

Grey water, wastewater and drainage pumps

Not every pumped drain handles sewage. Grey water pumps for showers and utility rooms, condensate and wastewater pumps under basement kitchens, and drainage pumps in lift pits and car parks all have their own failure patterns — usually scale, grease or debris rather than solids. We service and replace them, correct discharge pipework that has been run without a non-return valve or a proper fall, and fit alarms where a failure would otherwise go unnoticed until water appears.

High level alarms

A high level alarm is the difference between a service call and a flood claim. We repair and replace alarm panels, probes and float sensors, test them under real conditions rather than by pressing the test button, and can add battery-backed or remotely monitored alarms to existing installations. For basement flats and plant rooms without any alarm at all, fitting one is the single cheapest piece of protection available.