We create and maintain clean, safe and secure environments

We’re MSS. We have the experience, knowledge and capabilities to handle the big tasks and tall orders when it comes to support and compliance services. We have the people who take responsibility and care about getting the small things right – managers who know your day-to-day business inside out, and teams who always go the extra mile.

Our size means we can move faster and stay closer to your business. We give our managers the time to manage, our supervisors the time to supervise. And we think you get the best possible support and facilities management services when our people on the ground are happy and motivated. Very quickly, you’ll like the way our team feels part of yours.


MSS are a breath of fresh air. First class! DM, Assistant Engineer, RWE npower


UK Asbestos Training Association was created by those in the industry who had the vision and belief that it is possible to improve and maintain higher standards for asbestos training through a monitoring system. Click logo to see UKATA website.



The Asbestos Removal Contractors Association (ARCA) only admits members who can demonstrate high standards of workmanship and health and safety management. All ARCA members are independently audited at least twice a year and have to maintain appropriate levels of insurance for the work they undertake. Click logo to see ARCA website.

Safe Contractor


Safecontractor, the health and safety accreditation scheme, reviews and audits the health and safety policies, procedures and documentation of contractors. Using a safecontractor accredited supplier means you can reduce the time spent in reviewing health and safety pre-qualification questionnaires. Click logo to see website.



Contractors Health and Safety Assessment Scheme (CHAS) assesses a company’s health and safety policies and performance. CHAS members have proven safety management, saving buyers both time and resources in qualifying them as suppliers. We are CHAS accredited for our MSS Environmental division. Click logo to see CHAS website.


Security Industry Authority

MSS Group holds SIA approved contractor status for the provision of security guarding services. The ACS Standard encompasses all aspects of a security provider's operation. It takes a holistic view of how well an organisation is managed and an approved organisation must demonstrate to an independent assessor, on an annual basis, that it has met defined standards. Click logo to see SIA website.



The Legionella Control Association have accredited MSS Environmental to supply all forms of Water Treatment and Legionella Management, including chemical supply and Legionella Risk Assessment. Click logo to see LCA website.


OHSAS 18001

OHSAS 18001, a health and safety management system, enables MSS to control its occupational health & safety risks, continually improve its OH&S performance and demonstrate conformity to this high standard. Click logo to see website.


ISO 14001

ISO 14001, an environmental management system, enables MSS to implement environmental policy and objectives and ensure continual improvement. Click logo to see ISO website.


ISO 9001

Through ISO 9001 MSS demonstrates the ability to consistently meet both customer and regulatory requirements, and to ensure processes are in place for continual improvement. Click logo to see ISO website.


NDA Estate’s Supply Chain Charter

The NDA Estate’s Supply Chain Charter fosters good working practices between all clients and contractors working at NDA nuclear sites. Members commit to open and fair behaviour that underpins better communication and encourages mutually beneficial relationships and drives improvements through better planning and co-operation. Click logo to see NDA website.



The Health and Safety Executive (HSE) is an independent regulator that acts in the public interest to reduce work-related death and serious injury, and is responsible for enforcing health and safety in workplaces. Click logo to see HSE website.

Exor Environmental


We hold exor accreditation for our asbestos removal and asbestos consultancy divisions. Exor provide an accreditation service that ensures companies are reliable, financially stable and compliant with all relevant legislation. They check and independently validate all supplier information giving clients absolute confidence that their suppliers meet the required health and safety, environmental, technical, legal and financial standards. Click logo to see Exor website.  


Community Housing Cymru Group

Community Housing Cymru Group represent over seventy not-for-profit housing associations and community mutuals in Wales. Members like us provide over 136,000 homes and housing services throughout Wales. Click logo to see CHC website.


UVDB Verify

Achilles Verify Category B2 enables demonstrates capabilities in delivering key services on sites, and involves evaluation of our company’s management system and site assessments. MSS scored over 82% in all criteria. Click logo to see Achilles website.



Constructionline provide an up-to-date register of pre-qualified suppliers for construction contracts. All Constructionline members meet industry and Government standards. Click logo to see website.