CALL US ON  (+44) 1256 345 590


ISO 14001

Following the successful integration of the ISO 9001 Quality Management system into the business, Grant Walker Engineering are in the process of obtaining ISO 14001, the environmental standard . We will be combining the standard with the existing ISO 9001 to introduce an Integrated Management System, promoting efficiency, quality and safety throughout the business.



ISO 9001 Certification
GWE have successfully been awarded the ISO 9001 accreditation. Due to the continued growth of the business within the construction industry and also the value that our key clients hold of the ISO Certification, GWE actively pursued the quality standard in 2017. We have implemented the Quality Management System throughout the business.



Compliance with eh Achilles protocol ensures that contractors align to the requirements of PAS 91. Organisations accredited to the building confidence standard demonstrate that they meet these high standards and are aligned with the high level of compliance that the accreditations requires.




GWE have been accredited as an Brand-Rex Cabling Partner, authorised to provide a 25 year product and application warranty.


Siemon Registered Installer

GWE are a registered Siemon Installer company and authorised to provide a 15 Year product and application warranty.



Construction line

Construction line is the UK’s largest register of contractors and consultants for the construction industry. With over 8,000 key decision makers from over 2,000 buying organisations using Constructionline to select quality suppliers; it’s a great tool to promote our services and gain new work opportunities.




Excel Accreditation Certificate 

GWE have been accredited as an Excel Cabling Partner, authorised to provide a 25 year product and application warranty.



NICEIC Approved 

To establish our commitment to guaranteeing that our engineers provide a safe electrical installations service, Grant Walker Engineering are approved by The National Inspection Council for Electrical Installations (NICEIC).

Being a member of this scheme protects clients and consumers from the risk of unsafe electrical work. It ensures that we meet our legal duty to be technically competent and meet national electrical safety standards. Enrolment with NICEIC is voluntary, but we believe it’s essential for our engineers to be approved by this body as safety is paramount. Our work is re-assessed on a regular basis to ensure high standards so you can be sure you have a competent, capable and compliant engineer working for you.

  • The end product was simply outstanding…

    It wasn’t just the insights that impressed me, they had the technical knowledge but described everything in simplistic terms. The end product was simply outstanding.
    Account Director, London 
  • …to say I’m impressed is an understatement.

    Our requirements were anything but simple. GWE excelled in both the approach and the implementation, they had ideas that we didn’t think of and they stuck to all of our requirements, to say I’m impressed is an understatement.

    CEO Fintech Company, London

  • Grant Walker Engineering provided an excellent service

    I was very happy with the work completed by the Grant walker team. From the whole lifecycle of the project, they provided an excellent service in a challenging environment and ensured that the work was finished to a high standard.

    Account Manager at Communications agency


Enjoy a coffee with us


Holland House, 4 Bury Street, Gherkin Piazza

London, EC3A 5AW


Worting House, Suite 21, Basingstoke

Hampshire, RG23 8PY

Need more information?