DAB Esybox Mini 3 Booster Pumps Installed in Chingford, London

If a commercial building in Chingford has a booster pump system that keeps failing despite repeated repairs, replacing it with a modern twin DAB E.sybox Mini 3 setup can finally deliver the reliability the original installation never achieved. We recently completed exactly this job for a three-storey office block in Chingford, E4, where the existing pumps had been out of action for around four years.

The Job

The client, managing a three-floor office block in Chingford, had been living with a non-functioning booster pump system for a long time. Office staff told us the original pumps had not worked properly for around four years. Over that time, several repairs had been attempted, but none of them kept the system running for long - the pumps kept failing, and by the time we were called in, they were leaking as well as not delivering any usable pressure. Staff on the upper floors had effectively been working around the problem for years, and the client had reached the point of wanting a proper, lasting fix rather than another temporary repair.

The job came with an unusual complication. The building's plant room sits on the roof, and the original pumps had been lifted into place by crane during construction. That option no longer existed for a replacement - the only way onto the roof now was through a loft hatch. Every part of the new installation had to be planned around equipment that could be carried up a ladder and fitted through the hatch, which ruled out anything bulky and shaped our choice of pump from the outset.

The Solution

Our commercail plumbers specified a twin DAB E.sybox Mini 3 booster pump setup. The compact size of the Mini 3 was a key factor here — each unit is small and light enough to be carried up a ladder and through a loft hatch, something that simply wouldn't have been possible with larger commercial booster equipment. Beyond solving the access problem, the twin-pump configuration also gave the client the reliability and resilience they were after, with each inverter-controlled pump adjusting its speed automatically to match demand across the building's three floors.

Our work included:

• Removing the old, failed pump installation, including dealing with the existing leaks in the plant room.

• Careful planning of equipment sizing and access, given the loft hatch was the only route to the roof.

• A full assessment of access tank supply and plant room layout.

• Steel base to extend the floor area to take the combined DabE.sybox Mini Pumps.

• Custom made copper manifold to fit the existing space.

• Isolation valves and properly configured service connections, so future maintenance doesn't require shutting off water to the whole building.

• Secure pipework fitted with vibration reduction measures, keeping operation quiet for the occupied floors below.

• Complete commissioning, pressure testing and system optimisation across all three floors.

• Programming both pumps to work in tandem, sharing load and providing redundancy so the building isn't reliant on a single unit.

Why Twin E.sybox Mini 3 Pumps Made Sense Here

Given the building's history and its access constraints, this installation needed to tick several boxes at once:

• Compact enough to be carried up a ladder and through a loft hatch, with no crane access available.

• Reliable, inverter-driven operation to finally put an end to years of pump failures.

• Consistent, matched pressure at every outlet across all three floors.

• Quiet operation suited to a plant room above occupied office space.

• Genuine energy efficiency, with each pump only drawing the power current demand requires.

• Built-in redundancy, so a single pump failure doesn't mean a repeat of the last four years.

  
  

The Result

Since commissioning, the office block has reliable water pressure for the first time in years. Staff across all three floors now have consistent flow at every outlet, and the twin-pump setup means the system has genuine resilience — if one pump ever needs attention, the building isn't left without pressure while it's sorted. For a client who had put up with a failing system for four years and several unsuccessful repairs, the difference has been significant.

Frequently Asked Questions

Why is a twin booster pump setup particularly suited to multi-floor commercial buildings?

Multi-storey buildings place extra demand on incoming water supply. A twin pump system provides the capacity to serve multiple floors and washrooms simultaneously when demand is high, plus redundancy so the whole building isn't dependent on one pump reducing down time and emergency callouts.

Will this cause disruption to a working office building?

Installation can usually be planned to minimise disruption, with isolation valves fitted so future maintenance doesn't require shutting off water to the entire building. Vibration reduction measures also help ensure day-to-day operation isn't noticeable to staff working below the plant room.

Is the DAB E.sybox Mini 3 suitable for commercial use, or is it a domestic product?

The E.sybox Mini 3 is compact and inverter-driven, making it well suited for both domestic and smaller commercial applications like office blocks, particularly when installed in pairs to provide the extra capacity and resilience a commercial building needs.

How do I know if our building needs a booster pump system?

Signs include weak pressure at outlets on upper floors, pressure that drops further when multiple washrooms or outlets are used at once, and complaints that are worse during busy periods — a site survey of the plant room and building layout will confirm whether boosting is the right solution.

Looking for a Reliable Water Pressure Solution for Your Commercial Building?

If a commercial property in Chingford, or elsewhere across Loughton, Woodford Green, Buckhurst Hill, Wanstead, Chigwell or Epping, has a booster pump system that keeps failing — or no working system at all — we can help, including in buildings where roof or plant room access is limited.

Contact us today on 020 8111 1230 to arrange a site survey.