About Us

Derwen Llyn was formed in 1990 by brothers Charles and Arthur Jones. Both have over 40 years experience in the building industry, having initially served their apprenticeship as bricklayers. During this time they have both worked on many construction projects as tradesmen, foremen, site managers and ultimately project managers - managing and supervising building projects from inception to completion.

Derwen Llyn have a strong policy of directly employing tradesmen, which gives us greater control over quality of work, health and safety, respect to the environment and the knowledge that our employees will be working towards our approved codes of practices.


We employ the following tradesmen, who are amongst the best in the area:

Sub Contractors

We have an approved database of local sub-contractors to carry out the following works:

Modern Plant

We also own and operate a fleet of modern plant which includes: