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High & Low Voltage Engineering

Welcome to High & Low Voltage Engineering Ltd – 'The difference is the knowledge!'


About Us

We’re not your average electrical engineering company. Since 2010, we’ve been powering up the UK with expert high and low voltage services, all powered by over 30 years of industry know-how. Founded by the ever-knowledgeable Andy Caville, our company was built on a simple idea: do great work, with great people, for great customers.

What We Do 

From HV and LV equipment supply and installation to COMA agreements, cable installations, TEV testing, and transformer oil testing, we’ve got the tools and the talent to handle it all. And when things go bump in the night? Our 24/7 callout service means we’re always just a phone call away.

About Us

Why Choose Us?

Because we’re not just engineers – we’re your power partners. Our team is fully trained, always up to date, and works hand-in-hand with local DNOs and suppliers to make even the biggest jobs smooth and stress-free. We don’t just fix problems – we prevent them.

Our Mission

To deliver reliable, trustworthy service with a smile – every time. We put our customers first, always aiming for the best outcome, no matter the challenge.

About Us
More than just engineers — we’re people who care.

At HALVE, our values shape how we work, how we treat each other, and how we show up for our clients. We don’t just do the job well — we do it with integrity, empathy and a genuine commitment to getting it right.

Teamwork and trust

we’ve got each other’s backs (and yours too).

Customer-first mindset

your needs are our priority.

Expertise with heart

we know our stuff and we care.

Meet Our Team

We’re a tight-knit crew of engineers, problem-solvers, and tea-drinkers who love what we do. Whether we’re on-site or on-call, we bring energy, experience, and a bit of banter to every job.

Andy Senior Authorised HV/LV Engineer
Sam AP/Operations and Project Manger
Toni Office Manager
Claire Maintenance Manager
Denise Assistant to the Project and Operations Manager
Jason AP HV/LV Engineer
Jamie AP HV/LV Engineer
Dean Electrical Supervisor
Craig CP LV Engineer
Mitch CP LV Engineer & Supervisor
James CP Maintenance Engineer
John CP Maintenance Engineer
Alex CP LV Engineer
Joe CP LV Engineer
Arron CP LV/HV Hand
Oliver Electrical Improver
Steve Stores Manager
Tom CP LV/HV Hand
Bryan CP LV/HV Hand
Elvis Empath
Nala Food Waste manager