Commercial Electrical Contractors & EV Charger Installers

Providing trusted, NICEIC-approved electrical infrastructure, compliance testing, and EV charging installations for local authorities, schools, landlords, and commercial businesses across Hertfordshire and Bedfordshire since 1977.

Hertfordshire’s Trusted Electrical Contractors Since 1977

Since 1977, Penmilne has built an unparalleled track record for delivering robust, fully compliant electrical solutions across Herts and Beds. As a family-run company based in Hitchin, our reputation is anchored on quality, experience, and safety. We form long-standing, decades-long partnerships with local authorities, housing associations, schools, and commercial property developers who require absolute regulatory compliance and reliable customer service.

Comprehensive Project Scope

Handling everything from initial commercial design and full rewires to complex data wiring and office refurbishments.

Fire Safety Specialists

As an Aico Fire Safety Platinum Partner, our team is intensively trained to design, install, and maintain advanced smoke and heat detection systems.

Call Us

01462 437680

Delivering Fully Compliant Electrical Infrastructure

Technical Expertise, Engineered to Deliver

We engineer reliable, high-performance electrical systems tailored specifically to the rigorous standards required by schools, letting agents, and commercial property developments. Our focus remains entirely on delivering technical compliance, strict data governance, and efficient project execution.

Complete Professional Endorsed Electrical Solutions

Commercial Refurbishments & Fit-Outs

Comprehensive design and installation services for business owners and property developers, including full refits, sub-main installations, and commercial data wiring.

Electrical Inspections & Compliance (EICR)

Thorough statutory testing and periodic electrical inspections tailored specifically for commercial operations, letting agents, and housing associations.

Commercial & Workplace EV Charging

Government-approved OZEV grant-assisted EV infrastructure design and smart charging installation for business car parks and corporate fleets.

Aico Fire Safety & Detection Networks

Vetted, Platinum Partner expertise in the design, wireless commissioning, and ongoing maintenance of advanced heat and smoke detection systems.

Education & Public Sector Frameworks

Dedicated, high-performance maintenance contracts, programmed remedial works, and planned asset management for local authorities, schools, and nurseries.

Large-Scale & Specialist Domestic Works

Focused strictly on comprehensive residential electrical infrastructure, including full property rewires, smart home integration, and consumer unit upgrades.

Reviews From Our Clients

Electrical Surveyor

St Albans City & District Council

Penmilne Ltd have consistently delivered in their role as a true working partner with St Albans Council and have provided excellent Key Performance Indicators across all sectors of works.

Asset Management Team

Thrive Homes

Over the last five years, Penmilne and Thrive have worked well together to ensure all of our properties are compliant.

Galasso Signs

Local Business, Hitchin

Penmilne provide all our electrical services and have done so for many years. Projects have included the installation of new equipment, task lighting, workshop lighting and electrical maintenance. They always provide a good service.

Mrs Sear

Homeowner, Harpenden

I had been so worried about having my house rewired, but your team were so knowledgeable, clean, tidy and extremely courteous. They were brilliant, thank you so much.

Technology Spare Parts Ltd

Commercial Business, Hitchin

Penmilne have provided electrical services following our expansion into larger premises. We find them to be professional and responsive to our needs. Staff are very knowledgeable; electrical works are always completed promptly and efficiently.

Mrs T

Property Owner, Hitchin

We chose Penmilne to complete a rewiring of a recently purchased flat. Everyone was very patient with our numerous questions. Their work was of a high standard, and we were impressed by how clean and tidy the flat was when they had finished.

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