ASG is one of the few stone contractors that can offer the full range of marble, granite and stone-related services for every application: both internal and external, new build and refurbishment.

Stone Cladding & Flooring

Over the last 20 years, we’ve successfully installed stone cladding and flooring in dozens of high profile buildings. Highlights include the Hilton Metropole Hotel and Amazon's UK head office at Principal Place.

Floor & Wall Tiling

We’ve built our reputation on delivering complex marble, limestone and granite sub-contract packages on time and on budget. Having worked with most of the construction industry’s premier contractors such as Multiplex, McAlpine and Mace, our capabilities are illustrated by the level of repeat business from these, and several other discerning contractors.

Cleaning & Restoration

Whether your project incorporates retained masonry facades that need to be cleaned and repaired, or you need internal restoration expertise for a Listed building. We have extensive experience working on historic buildings throughout London and the South East such as the Café Royal in Leicester Square and the National Portrait Gallery in Trafalgar Square.

Installation & Maintenance

After PC we can ensure your installation remains pristine and compliant with a scheduled maintenance programme. This is particularly important for heavily trafficked areas in offices, shops and hotels, where the slip resistance can decrease over time.


We are one of the few remaining stone contractors with our own stone processing factory. This gives us the ability to offer a very quick turnaround on orders where we’re installing the stone. This is particularly useful when we’re working with an imported marble or granite with a long lead time. Processing the stone in our factory can be the difference between keeping your site working and pulling off site while waiting for a delivery.

Design & Management

Modern contracts often include elements of ‘contractor’s design portion’. As the stone specialist, we develop the architect’s conceptual design as part of our contract. When the stone details have been drawn, they are sent to the project team for approval before manufacture.