Contractwyr Trydanol/Electrical Contractors
Electrical contracting you can trust.
Design, installation, testing, maintenance and temporary power for commercial, industrial, public, domestic and event clients. Founded in 1963 and run today by Iwan Jones and Marc Hughes from Tregarth, near Bangor.
- Founded
- 1963
- Approved
- NICEIC
- Members
- ECA


Official contractor
National Eisteddfod of Wales & Urdd National Eisteddfod
Since 1963
Founded on a partnership. Built on repeat business.
Jones & Whitehead Ltd was founded in 1963 as a partnership between Mr Oscar Bowen Jones and Mr Frederick Whitehead. Today the company is run by Iwan Jones, Oscar's son, and Marc Hughes.
Our main operating fields are the commercial, retail, industrial and domestic sectors, with a large share of our work in schools, public buildings and national events. Together, our team provides:
- Design and installation of electrical services for power, lighting, emergency lighting, data cabling and CCTV systems.
- All aspects of electrical contracting, from large industrial installations to domestic rewires, alterations, testing and PAT testing.
- Design and installation of temporary electrical distribution of power, lighting and emergency lighting.
- Events of every size, from music concerts to large festivals and up to 1000 tourer hook-ups.
1963
Founded as a partnership by Oscar Bowen Jones and Frederick Whitehead
1965
Became a member of the NICEIC
1971
Became a limited company
1,000
Tourer hook-ups we can power at a single event
What we do
Every part of the electrical job, under one roof.
These are our main services. If you don't see what you need here, please get in touch: we take pride in our adaptability and service.

01
Electrical Installation

02
Inspection, Testing & Commissioning

03
Reactive & Planned Maintenance

04
Temporary Installations & Events

05
Electrical Design & Build
Solar PV and battery storage. We are MCS certified, TrustMark registered and RECC members for the design, installation and commissioning of Solar PV and battery storage (EESS). See accreditations
Temporary installations
Powering the biggest weeks in the Welsh calendar.
Official electrical contractor for the National Eisteddfod of Wales and the Urdd National Eisteddfod. Power and lights for Access All Eirias since 2012, and power for eight hundred touring caravans for members of the Royal Welsh Agricultural Society.
Event power

How we work
A complete turn-key package, start to finish.
From conception and design to hand over, then preventative maintenance and emergency repairs for as long as you need us.
-
01
Conception & design
We work with you through planning to get the specification right.
-
02
Procurement
Materials and equipment sourced to the agreed design.
-
03
Project management
One team accountable for programme, safety and quality.
-
04
Installation
Time served, approved electricians carrying ECS cards.
-
05
Commissioning & hand over
Tested to BS 7671, certified and documented.
-
06
Maintenance
Preventative programmes and emergency repairs afterwards.
Projects
Bridges, schools, care homes and festival fields.
Client reviews
What our clients say
In their own words, as published on our client reviews page.
Read every review“Having worked with Jones & Whitehead on several projects, they provide a great service and accommodate all needs. All operatives and management are experienced and very helpful.”
“Very professional company, with an excellent track record, we have always had a good standard of work with no problems.”
“Typically a very good service and, always an extremely reliable service. Would highly recommend to others.”
“Jones & Whitehead have provided us with their services for a number of years by now. They provide a prompt and extremely helpful service. The staff are very helpful and knowledgeable.”
“I have found Jones & Whitehead to be very professional and always helpful in emergencies. If we come across a problem, they were never too busy to help out. I would recommend them to anyone with electrical enquiry or work.”
“Jones & Whitehead Ltd have provided a reliable service over several years. Realistic quotes are provided on time. Professional and friendly staff deal with our queries and electrical work on site.”
“We have used the services of Jones & Whitehead since 2006 and can only highly praise the quality of work and service provided. As a Company, we own and manage a portfolio of over 20 properties within Caernarfon: residential, commercial and the £7.5m Galeri creative enterprise centre. Having such a team of dedicated, skilled and professional workers within a stone's throw from us is extremely important and valuable to us. Another factor is that the service is always friendly, honest and provided in Welsh. We are delighted to support Jones & Whitehead and thank them for their work.”
“Jones & Whitehead provided an excellent service and their work was to a very high standard. We would not hesitate to recommend them.”
“Always had great service from Jones & Whitehead, very prompt and effective service.”
“Jones & Whitehead have been delivering electrical repairs and maintenance services to Cartrefi Cymunedol Gwynedd successfully for a number of years. I would have no hesitation in recommending Jones & Whitehead to other organisations and look forward in working with them in the future.”
“Excellent organisation with superb management and highly trained staff.”
“Professional reliable and very easy to work with.”
“We have been associated with Jones & Whitehead for over 6 years now and in that time, found them thoroughly professional at all times and are a pleasant team to work with.”
“We always receive rapid responses to our requirements and queries and work is carried out to a high standard with good attention to detail. Their knowledge of our electrical systems is invaluable in planning new work.”
Trusted by councils, health boards, housing associations, national institutions and local businesses
Full client listBased in Tregarth. Working across most of Wales.
We cover most of Wales, and we are happy to discuss any project, near or far.
Area coveredCymraeg
Croeso. Gwasanaeth yn Gymraeg.
Darllenwch amdanom ni yn Gymraeg.
Ewch i'r dudalen GymraegLarge project or a single fault








