At Munns Group, we provide trusted HVAC, electrical, lighting, and building maintenance services to businesses across London and the surrounding areas. With a reputation built on reliability, technical expertise, and responsive service, we help organisations keep their buildings safe, efficient, and fully operational.
Our team of fully qualified engineers delivers expert HVAC, electrical, and building services across commercial, industrial, and public sector environments. As NICEIC and Gas Safe registered professionals and individual members of the Joint Industry Board (JIB), our engineers are trained to the highest industry standards, ensuring safe, compliant, and high-quality workmanship on every project.
We understand the importance of working in sensitive and secure environments, including schools, hospitals, care homes, retirement facilities, and probation services. Our staff receive specialist training to operate professionally and respectfully in these settings, minimising disruption while maintaining safety and compliance at all times.
For complete peace of mind, all personnel are fully DBS checked, wear clear company identification, and carry official ID at all times while on site.
From our founding as Watkins Electrical in 1969 to our current standing as Munns Limited, our journey has been defined by steady growth, technical excellence, and a commitment to service. For over five decades, we have evolved from a local electrical firm into a leading provider of comprehensive Mechanical & Electrical (M&E) solutions.
Today, we are proud to support critical infrastructure across the South East—spanning the transport, healthcare, education, and public sectors—while remaining true to the family-founded values that started it all.
Watkins Electrical formed
Watkins Electrical incorporated
The company set up offices in Burleigh Road Enfield
Company changes name to Munns & Sons (Electrical Contractors) Limited
Alan Munns (founder) retires, handing the company to James and Jon Munns
Company changes name to Munns Limited
Munns Limited moves office to Brimsdown
Munns Limited acquires Holland Air Conditioning
Munns Limited starts working on the rail network for C2C Rail
New Contracts
Munns becomes the preferred contract to provide M&E support for KIER Group in Waltham Forest, Harrow, Hackney and Lewisham
Munns Limited starts working with G4S to provide PPM and reactive works to 17 healthcare centres
At Munns Group, we are committed to keeping businesses powered, operational, and secure through reliable HVAC, electrical, and lighting services. Our proactive approach to facilities maintenance helps minimise downtime, improve building performance, and create safe working environments for our clients.
We believe strong client relationships are built on trust, communication, and dependable service. By working closely with every customer, we deliver tailored mechanical and electrical solutions that support the long-term needs of their business.
Our reputation for quality service has enabled us to work across a wide range of sectors, including education, finance, commercial property, and the public sector, with clients including CBRE and Amey.

Can I just take the time to feedback on the great efforts of the engineers and site staff yesterday. With great team work, gentle persuasion and lots of “keep smiling!”, the job is complete!

Our client has asked us to pass on that Simon, the electrician, has been brilliant since he started with Munns. Please pass on our thanks to him

You have a star there in George and it is clear the place would not run without him and his site knowledge.

I know it has been said many times before, but please can I commend Jason. It is extremely evident that he takes pride in what he does and genuinely cares for the site. The Plant Rooms were in great condition, very tidy, first aid kits all in date etc. Also, his helpfulness, nothing is too much to ask and his knowledge of the goings on across the site is impeccable
We are committed to delivering environmentally responsible HVAC, electrical, and building services across all areas of our work. We actively seek to reduce our environmental impact by promoting sustainable practices, improving energy efficiency, and ensuring environmental considerations are embedded in every project we undertake.
Our commitment to sustainability is demonstrated through our ISO 14001 Environmental Management accreditation, which underpins our approach to continual improvement in environmental performance. This certification reflects our dedication to meeting recognised environmental standards and operating responsibly across all business activities.
We are committed to working with clients and partners to support greener, more efficient building solutions that contribute to a more sustainable future
At Munns Group, we operate an ISO 9001 Quality Management System to ensure consistently high standards across all HVAC, electrical, lighting, and building services.
We are committed to continuous improvement, reliable workmanship, and delivering services that meet and exceed customer expectations on every project.
We are fully committed to equal opportunities and inclusive employment practices. We ensure all employees and applicants are treated fairly, without discrimination, and valued for their skills and experience.
Our full Equal Opportunities Policy is available on request.
Looking for a trusted partner?
At Munns Group we want to keep the power in our clients’ businesses, whether that’s through keeping them operational or through making them feel secure in their buildings.
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