Mark recently completely replaced my old outdated fuse board with a modern equivalent at my business premises. He kindly undertook the work at a weekend so as not to disrupt my work. His workmanship was excellent and the service received was very professional. The work area was cleaned up well so no mess which I much appreciated. I have no hesitation in recommending Mark for any electrical needs.

- Colin Doody [Dentist] (Sheffield)

September 2016

Mark came to give us a quote very promptly after I spotted his recommmendation on my work e mail. The quote was very reasonsbly priced and a convenient work date given. When looking at our faulty bathroom fan, he pointed out that the brushed steel sockets recently replaced (DIY) weren't safe.This was all fixed and made safe quickly and efficiently.We have since called Mark back to add some further sockets during some refurbishment, and again he has replied promptly, provided a very reasonably priced quotation and arranged a date to carry out the work without delay.I would not hesitate to recommend this company.

- Amanda Hewitt (Sheffield)

September 2016

Mark installed a car charging point at my home, he arrived promptly on time and carried out the job quickly and efficiently, exactly what we needed!

- Kevan Baldwin (Scunthorpe)

September 2016

Mark is a really professional worker, Happy to leave him the key, would recommend him 100%.

- Hillary Walker (Totley Sheffield)

September 2016

I have used GDH3 to undertake work at my home and also my office. We have always found Mark to be reliable, and the quality of work undertaken to be excellent. I have no hesitation in recommending Mark Shepherd/GDH3.

- Mark J Wright (Dronfield)

September 2016

Mark supplied and fitted outside security lighting, replaced some interior lighting and fitted an electric fire for me. He is extremely helpful, flexible and professional. He was recommended to me by a work colleague and I would have no hesitation in recommending him to others.

- Ann Jackson (Dronfield)

September 2016

Good pre-work communication.Quality work carried out on-time. Certificates of work provided. Would recommend to anyone.

- Shawn Shelton (Dronfield)

September 2016

Mark Shepherd installed a new fuse box and completely rewired my kitchen in readiness for a new kitchen being fitted.I had previously been given some advice from another supplier but was not confident of the service he claimed to provide, I turned to Mark who completed a full survey and offered advice, which turned out to be contrary to that of the previous supplier - it was very reassuring and Mark completed the work very quickly and efficiently, delighted with the service he provides!

- Mick Hawley (Dronfield)

September 2016

I purchased an electric car and it was Nu-World energy that arranged Mark to install the charger at my home. I can honestly say that I think Mark is one of the most politest and professional tradesmen that I have ever come across. Mark also prepared so well in advance that it was impossible to fail the task. Even the weather could not stop him. Mark managed to get from near Sheffield via Wales to Wiltshire on the snowiest day of the year. If you want a job done good, this is the man to hire. Well done Mark.

- Mitch Charles (Swindon)

September 2016

Mark was recommended via a work colleague and has completed several domestic electrical jobs for me. He has gone out of his way to accommodate my requirements - well beyond what might reasonably be expected - and works as unobtrusively as he is able, even bringing his own vacuum cleaner! The standard of his work is excellent and I have no hesitation in recommending Mark for all aspects of his service.

- Alice Morsman (Totley)

September 2016