DJ Allen Joinery & Building Contractor is a family run business which was established in 1989. We started as a business with a reputation for friendly service and high standards and we maintain that reputation to this day. We are based in Belfast and cover the Belfast area/ Co Antrim and Co Down.
All of our work is carried out by professional tradesmen , we offer all types of work, from hanging a door, to building a complete private dwelling. The majority of our work comprises of new builds,  residential extensions, roof space  and garage conversions, renovations, and the construction of sunrooms and garages.We also carry out all types of joinery work etc.
For a free quote, please get in touch.

Trades offered

Builder general
Handyman and maintenance
Loft conversions
General extension
Garage conversions
Carpenter and Joiner
General carpentry
House Builder
Custom/Self Build
New build

Case studies

Infill Extension with Trocal Flat Roof System and Aluminium Glazed Rooflight

  • 02 May 2018

Infill extension

  • 02 May 2018

See more case studies