Full Qualified Supplier on Achilles Services

H.A. Marks is pleased to have been audited by independent supply chain risk management organisation Achilles and has been certified as a Full Qualified Supplier in Construction services.


This enables our clients to have confidence in our professional approach to the overall continuity and quality of construction and construction related disciplines.


For more information about Achilles visit:


To view our certification click the pdf link below:


NICEIC is the UK electrical contracting industry’s independent voluntary body. They offer leading certification services, Building Regulations Schemes, products and support to electrical contractors and many other trades within the construction industry.

For more information visit

Mayor of London’s Green Procurement Code

H.A. Marks are pleased to be a signatory to the The Mayor of London's Green Procurement Code. The Mayor of London's Green Procurement Code is a support service for London based organisations committed to reducing their environmental impact through responsible purchasing. They provide practical advice and online resources to help embed green purchasing into all aspects of an organisation, including sourcing green products.