A job well done by Harry and his team. He explained what he was doing all the way, and the team delivered a good job on time! Highly recommended!
Abi
Consumer Unit
24 August 2026
Voltnet customer testimonial · not a Google review

Our work is underpinned by over two decades of formal education, regulated certifications, and continuous professional development within the UK electrical and building services industry. Every qualification listed reflects a commitment to safety, compliance, technical excellence, and best practice, ensuring all installations meet current UK regulations and industry standards.
We hold City & Guilds electrical qualifications covering installation, inspection, testing, and certification, including compliance with the 18th Edition Wiring Regulations (BS 7671) and Building Regulations Part P. This ensures all domestic and commercial electrical work is carried out safely, legally, and to the highest professional standard.
Our credentials include a Level 3 Award in Electric Vehicle Charging Equipment Installation, alongside specialist training in solar photovoltaic (PV) systems. This enables us to deliver compliant, future-proof solutions for EV charging points, renewable energy systems, and modern electrical infrastructure in homes, workplaces, and commercial premises.
With a Level 3 Certificate in Inspection, Testing & Certification (2391), we are fully qualified to carry out Electrical Installation Condition Reports (EICRs), fault diagnosis, and certification for landlords, businesses, and property managers. This ensures peace of mind, regulatory compliance, and reduced risk.
Additional training in fire door safety and fire protection principles, combined with advanced CPDs in HV/LV systems, lighting design, and electrical protection, strengthens our understanding of whole-building safety and compliance — particularly important in commercial, multi-occupancy, and regulated environments.
Our foundation is built on degree-level qualifications in Building Services Engineering, including a First Class BEng (Hons). This academic background supports a deeper technical understanding of electrical design, system coordination, load calculations, and integrated building services, setting our work apart from standard contractors.
We actively maintain and update our knowledge through ongoing CPDs, manufacturer training, and regulatory updates, ensuring our services remain aligned with current UK legislation, latest electrical standards, emerging technologies, and best-practice installation methods.
Verified services & qualifications
Accredited & trusted by









Voltnet Engineering Ltd is the current legal identity of the business, registered with Companies House under company number 07129582. Companies House records the previous legal name as HARRYG ELECTRICAL INSTALLATION LIMITED; older customer references may appear under Harry G Electrical Installation Ltd (HGEI).
TrustMark scheme provider: NAPIT.
Health and safety are central to our operations. We provide assurance that all electrical installations, designs, calculations, and certifications meet current UK standards.
Full compliance with UK Electrical Regulations
Compliant with Building Regulations Part P
TrustMark identifies NAPIT as its scheme provider for this registration.
Verified Qualifications & Certificates
Advanced Technical CPDs (Amtech, Schneider HV/LV, Lightning Protection)
Customer feedback
These are 3 selected Voltnet reviews from the 11-review Voltnet collection. The full set contains 94 website testimonials: 83 legacy HGEI and 11 Voltnet reviews. These are separate from Google reviews.
A job well done by Harry and his team. He explained what he was doing all the way, and the team delivered a good job on time! Highly recommended!
Abi
Consumer Unit
24 August 2026
Voltnet customer testimonial · not a Google review
Harry at Voltnet Engineering Ltd did an excellent job upgrading my consumer unit. He was professional, reliable and clearly very knowledgeable. The work was completed to a high standard, and everything was left neat and tidy afterwards. I also really appreciated how organised the service was — all the relevant certificates and documentation were provided promptly after the work was completed. Communication was clear throughout, and I felt confident that everything had been done properly and safely. I would definitely recommend Harry and Voltnet Engineering Ltd to anyone looking for a trustworthy and professional electrician.
Natasha
Upgrading my consumer unit
1 September 2026
Voltnet customer testimonial · not a Google review
Can’t recommend Voltnet enough. Always a fantastic job!
Hannah Mortier
EV Charger Installation
21 July 2026
Voltnet customer testimonial · not a Google review