— ROOFTOP AND BACK-OF-HOUSE AC REPLACEMENT · LIVE RETAIL CENTRE

Hollister, Bluewater Shopping Centre

Engineering-led principal contractors

The Challenge

ONE OF THE UK’S BUSIEST RETAIL CENTRES
A life-expired rooftop unit and eight back-of-house systems, replaced ahead of summer in a live shopping centre.

ASG was appointed to a full HVAC upgrade at the Hollister store in Bluewater. After repeated callouts, the life-expired Lennox rooftop packaged unit and eight back-of-house Daikin wall-mounted systems were unfit for continued use. The work sat inside one of the UK’s busiest retail centres, with a hard deadline: everything had to be ready before the summer peak. Noisy work and the crane lift had to happen out of hours, and the lift itself needed sign-off from the centre landlord while several major projects ran on site at once.

The Approach

ASG consolidated every scope into a single fast-track programme. On the roof, the team isolated and removed the old BMS, electrical connections and ductwork, then used a 90-tonne crane out of hours to lift out the old Lennox unit and lift in the new plant, with primary and secondary ductwork measured, fabricated and installed on site. The crane lift was planned with the Bluewater landlord and centre management to secure an approved window, access routes and compliance with centre protocols.

Back of house, eight outdated wall-mounted units were replaced with eight high-efficiency Daikin systems, with electrical, condensate and control modifications, then full testing and commissioning. Despite short lead times, the whole programme was delivered without delay.

The Outcome

0
Disruptions
To retail
8
Units
Back-of-house replaced
0
Callouts
Post-Install
4
Weeks
AHEAD OF SUMMER PEAK
The rooftop unit and all eight back-of-house systems were replaced and fully operational before the summer peak, with zero disruption to trading and no reported callouts after installation. “Our client was very happy to have the system up and running prior to the start of summer – a smooth, professional delivery from ASG.”

Project at a Glance

Client:
Hollister
Site:
Bluewater Shopping Centre
Sector:
Commercial (Retail)
Value:
£133,100
Duration:
4 weeks
Scope:
Rooftop packaged unit replacement and eight back-of-house AC units, single fast-track programme
Systems:
New rooftop packaged unit (Lennox), eight high-efficiency Daikin wall-mounted systems
Specialist works:
90-tonne out-of-hours crane lift, landlord-coordinated

Talk to team

About us

ASG is an engineering-led principal contractor working across mechanical and electrical, lighting and energy, service and maintenance, and soft strip out, for commercial, industrial and public sector clients. We manage every stage in-house, from design and supply through to installation and long-term maintenance. Safety, compliance and long-term performance run through all of it.

contact@asgsl.co.uk

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