020 8453 1010 Menu

5 Merchant Square

Conditioned Environment was commissioned to design and build seven floors of mechanical services in a 24-week programme at WeWork’s co-working space in Paddington. This iconic complex has been converted into office space and is designed to foster connection and enhance productivity.

To ensure the comfort of everyone working in the building and account for a large increase to the headcount allowance per floor, we supplied and installed seven air handling units and associated ductwork. Three tea points, baristas and coffee points were installed on each floor to allow for easy access to refreshments.

This project included the relocation of 258 existing four-pipe FCUs. This required modifications to 80% of all secondary ductwork and 90% of supply and extract ductwork.

Our team supplied and installed 60 new WCs with dedicated risers. This also included toilet extractor fans for all new WCs, leak detection to all wet services, new boosted cold-water service and waste service, relocation of all building management system (BMS) outstations and motor control centre panels. We also installed a new future-use BACnet network – a type of building management communication cabling – to provide decreased downtime when the building BMS is upgraded.

We had two separate chilled water and low-temperature hot water risers serving either side of the floor plate. There were different inhibitors in the chilled and low-temperature water, which is very unusual. This meant we had to use separate pumps to flush the chilled and low-temperature water; requiring four pump sets to be installed per floor.

The water quality was the poorest our team has ever recorded on a project. The cleaner had to be introduced three times when it hit a saturation point after just two cleans. However, we swiftly identified the cause of the issues and introduced new valves on each end-of-line unit as well as a new daily valve exercise to alleviate any further issues.

The building management network was obsolete, making sourcing controllers and ancillaries difficult and this complicated the integration. The Conditioned Environment team successfully analysed the existing services and identified how to integrate new equipment and systems into these.

Excellent planning and coordination were essential to the success of this project due to the short programme, multi-floor working and large floor plates. WeWork residents now have comfortable and stylish offices in which to work and collaborate.


Name of Partner

Name of Building
5 Merchant Square, London

199,668 sq ft

  • Installation of air handling units tick
  • Relocation of 258 existing four-pipe FCUs tick
  • Supply and install of 60 WCs tick
  • Improved water quality tick

Latest News

Why is indoor air quality so vitally important in 2021? Here we look at what indoor air quality is and how improving it will help us beat COVID-19 transmission. Simply...

Latest Post

Our Work

Take a look at some of our projects and see what our clients say about our services and how we add value.

View Our Work