Marischal Square | HVAC Commissioning | Water Treatment

Service: HVAC Commissioning & Water Treatment

Client: Richard Irvin Energy Solutions

Alongside main contractor, Morgan Sindall, and M&E Contractor, Richard Irvin Energy Solutions, Cleartech have provided HVAC commissioning and water treatment services on the new Marischal Square. The new flagship development, in the heart of Aberdeen, is set to welcome approximately 1,500 jobs to the area once completed and around 300 jobs during construction phase. The build consists of a Residence Inn by Marriott Hotel, a bar and restaurant space and a block of offices. So far, both Costa Coffee and Mackie’s of Scotland have signed up to fill up the shop spaces, along with an array of restaurants.

Scope of Works:

  • Clean and disinfect of the 2x new CWSTs & associated hot and cold water services to the office block and hotel complex
  • Water samples taken and tested by a UKAS accredited lab
  • Full pre-commission chemical clean, flushing and corrosion inhibitor dosing of the LTHW system
  • LTHW, DHW and ventilation balancing


Cleartech’s Approach

Our scope of works included a domestic water services disinfection, which consists of; cleaning and disinfecting 2x new CWSTs and their associated hot and cold water services to BS8558 Specification. We also took potable water samples, which were then tested at a UKAS accredited laboratory and results were issued to our client.

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(Pictured: Before & After of our CWST Clean & Disinfection)

Our team of qualified engineers carried out a full pre-commission chemical clean and dynamic flush and dosing of corrosion inhibitor. This was completed fully in accordance with BSRIA BG 29/2012 Pre-commissioning Cleaning of Pipework Systems.

Our HVAC commissioning services were completed as per C.I.B.S.E code ‘A’ and ‘W’, these included carrying out water and ventilation balancing of the LTHW systems as well as the several ventilation systems, which included;

  • 10x AHU Systems
  • 11x Extract Fan systems – including toilet extracts
  • A 5,500 litre LTHW system serving heater batteries and rads throughout the project
  • DHW of both the Hotel and Office Blocks Systems


Cleartech invest considerable time, effort and resources on building the expertise of our engineers and ensuring that all works are completed on time and of a high quality standard.

An animated tour of the Square is available through the official website.

HVAC Commissioning








For further information or advice on HVAC commissioning, Legionella compliance and water treatment, or for a quote, call today on 01698 682000, send an email to [email protected] or submit a contact form on our website.

Click the graphic below to view or download our Marischal Square case study.

HVAC Commissioning