Qualifications and Accreditations

Regulated by RICS
The Royal Institution of Chartered Surveyors (RICS) develops and enforces leading international standards, protecting consumers and businesses by ensuring the utmost level of professionalism is employed across the built and natural environment.

CHAS Elite
CHAS Elite is the highest level of CHAS accreditation and the UK construction industry’s pre-eminent prequalification system and is backed by Build UK and the Civil Engineering Contractors Association (CECA). CHAS Elite certification confirms our commitment to the highest operational standards, and that Interlocks Surveys complies with the Common Assessment Standard.

BS EN ISO 9001 Quality Management System
ISO 9001 is the world’s most widely recognised quality management systems standard. At the heart of ISO 9001 certification is an effective Quality Management System (QMS) that helps organisations implement consistent, effective processes every time.

BS EN ISO 14001 Environmental Management System
ISO 14001 is an internationally recognized standard for Environmental Management Systems (EMS). It provides a framework for organisations to establish, implement, maintain, and improve their environmental management practices, ultimately helping them to reduce their environmental impact, comply with regulations, and improve overall efficiency.

BS EN ISO 45001 Occupational Health & Safety Management System
ISO 45001 is the international standard for occupational health and safety management systems. It specifies the requirements for an OH&S management system to help organisations provide safe and healthy workplaces. It helps organisations identify hazards, assess risks, implement control measures, and continuously improve their OH&S performance.

Constructionline – Associate
Our Associate membership of Constructionline confirms that Interlocks Surveys complies with all of their verification modules by virtue of holding Common Assessment Standard certification.

Constructionline Social Value
Interlocks Surveys has passed the Constructionline Social Value Assessment, demonstrating our commitment to making social value a priority within our organisation. This includes implementing robust Equality, Diversity and Inclusion (EDI) processes, providing equal opportunities for minority groups, providing good working conditions, supporting employees’ mental wellbeing, engaging with local communities, and working to improve our organisation’s sustainability.

Common Assessment Standard

Common Assessment Standard
By completing the Common Assessment Standard, Interlocks Surveys has demonstrated its compliance and commitment to risk management to customers, clients and employees. The Common Assessment Standard is a comprehensive assessment programme, covering 13 key areas of risk management and is a requirement of all firms working on public sector contracts.

European GPR Association (EuroGPR)
EuroGPR is an association comprising users and manufacturers of GPR equipment, intent on raising standards within the GPR industry. The organisation sets standards relevant to the industry and provides information on best practice to its members.

SSIP Supplier logo

SSIP (Safety Schemes in Procurement)
Holding SSIP accreditation demonstrates that our firm has successfully passed a rigorous, third-party audit of our health and safety management systems. This industry-recognised standard assures our clients that we are fully compliant with construction regulations, and committed to maintaining the highest levels of safety on every site.

cyber essentials logo

Cyber Essentials
We are fully certified under the Cyber Essentials scheme. This UK government-backed accreditation confirms that we have implemented essential security controls, and verifies our defences against the most common cyber attacks. Cyber Essentials reflects our dedication to maintaining the highest standards of data protection and IT security for our clients and partners.

Thanks for the surveys, I asked my Tech Team to review it and they praised it’s quality!
Jason Honour
Mining Remediation Authority
I wanted to take a moment to share some very positive feedback regarding Jamie, currently supporting the works at Westbury Viaduct. Since joining the team, Jamie has made a noticeable and genuinely positive difference. His proactivity, strong work ethic, and engaged communication with the client have all stood out. He has integrated quickly and effectively into the team, and his approach has already helped strengthen collaboration on site. I felt it was important to highlight the value he is adding, and to let you know that his contribution is very much appreciated. We look forward to continuing the momentum as we progress with the successful installation of the parapets. Thanks again, and please pass on our appreciation to Jamie.
Jose Segovia
FC Civil Solutions (Ferrovial)
Thank you for this – and I appreciate your quick turnaround from our late request, and many thanks to Alyx for his work on site!
Steven Jewell
MiTek
Thank you for all your and the teams’ efforts in getting such great packages of drawings to us! Really appreciated it.
Caroline Edwards
Acanthus Clews
The survey data we received last night was exactly what we needed. It showed us that the existing access road doesn’t match our construction drawings, which is a significant find for us. Thanks again for managing to rearrange your schedule; it’s really helped us stay on track with our tight deadlines.
​​​​​Tom Gardner
YMD Boon Ltd (Architects)
Your drawings were exemplary and equal to those of another survey firm in quality.
Henry Sanders
Hestia Architects Ltd
Just want to say thank you to the surveying team for the professional and efficient way they carried out the onsite topographical survey at our site.
Steve Blacker
Stansgate Planning
I am more than happy to vouch for the quality and timeliness of Interlocks Surveys work at St Bartholomew’s Hospital and can confirm that their ways of working were appropriately considerate of the nature of St Barts as a Grade I listed heritage asset.”
Ian Haig
Barts Heritage (NHS)
That is excellent thank you. Thank you and the team for your hard work on this. I appreciate it was a whopper of a project to get done given the sheer scale of the site and all the off site highways to considered.
Lauren White
Hallam Land
Swan have been very happy with the service and prices from Interlock.
Tim Major
Swan Environmental
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