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Approvals & Certifications

Other Approvals & Certifications

Duct Work Construction to DW/144

DW/144 is recognised throughout the UK as the Standard Specification for ductwork manufacture and installation. "It will be in the interest of the designer, both financially and practically, to consider employing a specialist cleaning contractor at the outset of a contract to internally clean newly installed ductwork prior to handover". This specification recognises developments in technology and the impact of the computer age with particular reference to CAD CAM procedures and techniques. . This is an essential reference document or guide for installers specifiers and engineers.

View a preview of the DW144 specification.

The 2013 revisions go some way towards clarifying a number of areas of potential indistinctness that have existed to date, as well as having been tested to meet the relevant European standards for the first time.

Perhaps most notably, the standard further embraces the use of digital construction techniques including Building Information Modelling (BIM) and CAD CAM. DW144 emphasises the role of the ductwork contractor in the design process with the potential benefit of simplifying the end construction process.

Smashing Cleaning Services LLC routinely work to ensure that our installations meet the standards in DW/144. For more information about Duct construction and DW/144 please contact us on 04 3213188 or 050 612 4269.



Our Professional Services
    • HVAC System Cleaning
    • Mold Remediation
    • Indoor Air Quality Testing
    • Kitchen Exhaust Cleaning
    • Water Tank Cleaning and
    • Water Tank Repair
    • Pipeline Disinfection
    • Laundry Duct Cleaning
    • External Building Wash
    • Media Sign Cleaning
    • Garbage Chute Cleaning
    • Car Park Cleaning
    • Post Construction Cleaning
    • The Floor Doctor
    • Carpet & Upholstery Cleaning
    • Data Center Cleaning
    • Drain Line CCTV Inspection
    • Beach Cleaning
    • Duct Leakage Testing

Call us 24/7 on these numbers
050 612 4269
050 759 0496

or send us an email at

Applicable Standards
       • HVCA Standards
       • Dubai Food Code
       • 2013 NADCA Standard   
Control Of Legionella
       • in Dental Surgeries       
       • in Water System