John Kelly Construction Services

Construction and civil engineering services in the North Wales area.

John Kelly Construction Services is a successful growing business, supplying a wide range of construction and civil engineering services in the North Wales area.

We work for a wide range of clients including home developers, national construction companies, utilities and local authorities.

Based on an extremely high work ethic, John Kelly Construction has built a strong reputation for reliability, quality and professionalism. Continually striving for excellence, we work in partnership with clients to execute projects to exacting standards.

Latest Projects

John Kelly Construction Services has worked on a number of civil engineering, building, groundwork and related projects for various clients.

Our company is committed to delivering projects proactively, in the most efficient and innovative ways possible, maintaining the highest standards in quality, safety and environmental respects.

Please contact us today to see how we can help you.

Latest News

Sian Gwenllian MS visits our site!

24th February 2026

Sian Gwenllian MS, Member of the Senedd for Arfon, recently visited our Tredafydd, Penygroes  site where we are building 12 houses for social housing provider, Adra. 🔨

During the visit, she congratulated Rhun Williams and his team on their success in the Small Builder Category at the National House Building Council (NHBC) Pride in the Job Awards for his previous site at Bethel, Caernarfon. Rhun was selected from more than 8,000 site managers across the UK, progressing through at least three rigorous stages of judging to secure the regional title. 🎉

Sian said:

“I was very glad of the opportunity to visit the Tredafydd development and to congratulate Rhun in person on this tremendous achievement. It is always inspiring to see young people from Arfon excelling in their field, and I am particularly proud that Rhun has chosen to build his career and his life here in our local area. Developments such as this, which bring more affordable, high-quality housing to Arfon, are so important for our communities. This award is richly deserved.”

Employer Carousel Event

27th January 2026

John Kelly Construction was pleased to support Careers Wales at the employer carousel event for Year 9 pupils at Ysgol Gyfun Llangefni.

We delivered short presentations to small groups of pupils, engaging with 141 students and highlighting the wide range of career opportunities available within the construction industry.

It was a great opportunity to support career education and help inspire the next generation of construction professionals.

NHBC Supreme Awards

23rd January 2026

On Friday night we had the honour of attending the NHBC Supreme Awards in London, where Site Manager Rhun Williams was a Regional Finalist in the small builder category. 

High quality work has always been John Kelly Construction's priority. Our Site Managers, teams and sub-contractors always endeavour to create the best possible homes for our home buyers.

We are delighted that the NHBC recognised Rhun’s perseverance, hard work and attention to detail at Bro Eglwys, Bethel at a National Level! 

Llongyfarchiadau mawr Rhun Williams! 

CHAS-Accredited-Contractor-Graphic ISO-9001-Health-and-Safety-Management-Certificate ISO-14001-Health-and-Safety-Management-Certificate ISO-45001-Health-and-Safety-Management-Certificate NHBC logo SOE Marketing Toolkit Square social post 1

Website designed and developed by D13 Creative