DGW
Built through experience.
Driven by delivery.
The Trade
David George Williamson began his formal construction career, deliberately starting with an independent joinery business to learn the trade on his own merit.
The Family Business
After completing joinery training, David joined the family construction business. Responsibilities developed from joinery into foreman duties, project management, construction, civil engineering, residential development and substantial contracts.
DGW
DGW Building Services Ltd was incorporated - building on independent contracting work that had developed from joinery packages into extensions, renovations and complete construction packages across education, healthcare, housing and public-sector estates.
UK & Ireland
DGW has developed into a multi-sector construction business delivering residential, commercial, public sector, retail, leisure, heritage and specialist construction projects across the UK and Ireland.
The Trade
David George Williamson began his formal construction career, deliberately starting with an independent joinery business to learn the trade on his own merit.
The Family Business
After completing joinery training, David joined the family construction business. Responsibilities developed from joinery into foreman duties, project management, construction, civil engineering, residential development and substantial contracts.
DGW
DGW Building Services Ltd was incorporated - building on independent contracting work that had developed from joinery packages into extensions, renovations and complete construction packages across education, healthcare, housing and public-sector estates.
UK & Ireland
DGW has developed into a multi-sector construction business delivering residential, commercial, public sector, retail, leisure, heritage and specialist construction projects across the UK and Ireland.
Principal / Main Contractor
The client receives a single point of responsibility for construction delivery.
Tendering & Cost Planning
Design Development & Coordination
Value Engineering
Procurement
Programme Management
Client & Consultant Liaison
Construction
M&E Coordination
Specialist Subcontractor Management
Fit-out
External Works
Completion & Handover
David Williamson
David personally leads delivery and stays closely involved with clients from early discussions through construction and handover.
Trevor Reed
Trevor works closely alongside David and provides commercial management across DGW projects - tendering, project costing, supplier and subcontractor enquiries, valuations, budget management and commercial administration.
DGW operates with an established workforce that can extend to approximately 15 personnel depending upon project requirements, including skilled trades, labour, foremen and project/site management support.
The core workforce is supplemented by established specialist subcontractors including mechanical and electrical contractors.
DGW works closely with an independent Health & Safety consultant supporting project documentation, compliance, inspections and Principal Contractor responsibilities.
DGW's reputation has developed predominantly through recommendation, repeat business and long-standing client relationships rather than advertising or continually pursuing open tenders.
Successful construction requires the complete team to work towards the client's end result rather than individual contractors protecting only their own package.
“Problems should be treated as issues to solve rather than opportunities to move responsibility elsewhere.”
Value engineering does not simply mean reducing cost. The objective is to identify where money can be saved without compromising the project, allowing investment to be concentrated where it produces greater value in the finished result.
Personal Accountability
Fairness
Loyalty
Problem Solving
Value
Delivery
54.5973° N
5.9301° W
- Northern Ireland
- Ireland
- England
Projects without borders.
DGW is Northern Ireland based with experience across Belfast, Portstewart, Dublin, York, Folkestone and wider jurisdictions throughout the UK & Ireland.

