GSD London is a specialist commercial painting and decorating subcontractor. We work for tier-one main contractors across London under JCT subcontract, and hold CHAS, Constructionline Gold, ISO 9001, ISO 14001 and ISO 45001.






Nine services, delivered as a subcontractor to the main contractor. Each one runs to the programme, the specification and the site rules already in place. Select a service below for scope, how we work on site, and the projects that prove it.

Painting and decorating on commercial projects across London, from new build through to refurbishment, to the main contractor's programme.

Decoration of offices, including buildings that stay occupied while the work runs, with phased floors and out of hours working.

Decoration of listed and historic buildings, with specialist finishes, gilding and hand-applied work.

Spray finishing carried out on site, with masking, containment and overspray control on live and occupied buildings.

Spray application and respray of external cladding in situ, with coating systems selected to suit the substrate.

Intumescent coatings applied to structural steel, with film thickness checked and recorded as the work proceeds.

Glass replacement and glazing works, including heritage and sash window glazing, alongside window repair or as its own package.

Repair and restoration of timber box sash windows, including listed and heritage buildings. Survey, timber repair and redecoration.

Removal of lead-based paint from commercial and heritage buildings, with controlled removal, containment and making good.
One subcontract, one set of RAMS and one point of contact across all nine packages.
Work runs to the main contractor's programme and the specification already issued.
Each stage is inspected and signed off before the following trade moves in.
We take immense pride in our distinguished clientele, a testament to the unwavering quality and excellence that defines GSD London. From heritage to prestigious businesses, our reach spans across the vibrant tapestry of London.
Our extensive roster of high-profile clients reflects not only our commitment to delivering exceptional painting and decorating services but also our ability to meet the diverse needs of discerning individuals and esteemed establishments. We are honoured to have contributed to the aesthetic transformation of some of London's most iconic spaces, and we continue to uphold the highest standards, ensuring that each client's vision is realised with precision and sophistication.
GSD has undertaken numerous projects for Quinn over the past few years, including flagship projects for the V&A Museum and Warburg Institute both in the range of circa £300,000. Happy to recommend.

GSD completed the communal redecoration package valued at £100,000 at the Marriott Mayfair Grand Residencies, a 5* hotel. The project was completed in a tight 12-week program with GSD working with us to deliver it to a high standard. There were several hurdles to overcome throughout the job due to client changes, but each change was dealt with professionally by the project team from GSD. After the contract completion, the client praised the attention to detail provided by GSD and their outstanding work ethic in meeting the high expectations/time constraints of the project
