Accreditations

ISO 9001:2015 – Quality Management

This is a globally recognised standard for quality management. It helps organisations of all sizes and sectors improve their performance, meet customer expectations and demonstrate their commitment to quality. It’s requirements define how to establish, implement, maintain, and continually improve a quality management system (QMS).

Implementing ISO 9001 means Greyline Group Ltd. has put in place effective processes and trained staff to deliver flawless products or services time after time.

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Certificate number: 197063 


ISO 14001:2015 – Environmental Management

This is the internationally recognised standard for Environmental Management Systems (EMS).  It specifies the requirements for establishing, implementing, maintaining, and continually improving an EMS, helping organisations manage their environmental responsibilities in a systematic and effective way.

The standard introduced a stronger emphasis on leadership, risk-based thinking, and integration with other ISO management system standards through the High-Level Structure. It has been widely adopted by organisations of all sizes and sectors around the world and has supported improvements in environmental performance, regulatory compliance processes, and operational efficiency.

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Certificate number: 197380 


ISO 45001:2018 – Occupational Health and Safety Management

This is an international standard that specifies requirements for an Occupational Health and Safety (OH&S) Management System. It provides a framework for organisations to manage risks and improve PH&S performance.

The standard establishes criteria for an OH&S policy, objectives, planning, implementation, operation, auditing and review. Key elements include leadership commitment, worker participation, hazard identification and risk assessment, legal and regulatory compliance, emergency planning, incident investigation and continual improvement.

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Certificate number: 160726 


Constructionline – Gold Standard

Constructionline is a UK-based procurement and supply chain management platform that pre-qualifies contractors and suppliers for public and private sector construction projects.

It eliminates the need for repeated Pre-Qualification Questionnaires (PQQs) by assessing business credentials – such as financial standing, health and safety, and environmental policies, into a single standardised profile. Constructionline Gold also covers Social Value and the Building Safety Act.

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Registration number: 50131 


Achilles UVDB

UVDB is a community-driven compliant pre-qualification system designed for regulated utilities in the UK and the wider UK utilities market. It is a collaborative environment where utilities companies and suppliers work together to ensure high standards and compliance with legislative requirements.

With an independent chair and equal representation across all utilities, UVDB promotes inclusivity and transparency, making it a trusted platform for both large enterprises and SMEs alike.

Certificate number: 00176609


SafeContractor (inc. SSIP)

SafeContractor is a SSIP certification. They collect and verify all your details across health, safety, financial, environmental and ethical practices – right down to specific areas such as permits to work at height, or hazardous material handling. It’s comprehensive and therefore a valuable certification to hold.

Member number: MJ3906


CHAS

The Contractors Health and Safety Assessment Scheme (CHAS) is an accreditation awarded to companies that can show their health & safety processes can meet an excellent standard. Qualified professionals in health & safety complete a CHAS assessment of a business’s documentation, to confirm they are fulfilling everything required by law.

Certificate number: 161008


PAS 2030

PAS 2030 is the UK standard outlining the technical requirements for installing, commissioning, and handing over of Energy Efficiency Measures (EEMs) in domestic properties.

It is a mandatory certification for installers wishing to access government-funded retrofit schemes like ECO, GBIS, and the Warm Homes Plan. Greyline holds certificates for multiple measures.


A living wage is the minimum income necessary for a worker to meet their basic needs. Needs are defined to include food, housing, and other essential needs such as clothing. The goal of a livingwage is to allow a worker to afford a basic but decent standard of living.

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Greyline are an accredited Living Wage employer. Being a Living Wage employer is a voluntary commitment and it applies to our direct employees and our third party staff.


NIC_EIC

NICEIC provides assessment and certification services for contractors working across the building services sectors. We assess electricians, renewable energy installers, plumbers and gas and heating engineers.

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Enrolment number: 500781000 


BMTrada

BM TRADA – Q Mark Passive Fire Stopping Installation to STD 05b

BM TRADA exists to help make certain that the materials, products and processes that we test, inspect and certify for our customers are always safe, quality, compliant and fit for purpose. BM TRADA is proud to be part of Element, the market leader in Testing, Inspection and Certification services.


Copies of certificates and confirmation of expiry dates can be provided upon request, click here to contact us.