Quadriga was established over 20 years ago, today we have a large team of surveyors and restoration specialists all over the UK, completing projects on some of the nation’s oldest and most famous landmarks, including works with English Heritage. Our specialisms include stone restoration, facade repairs, timber preservation treatments, cathodic protection, structural and concrete repair using resin injection or helifix, and general refurbishment services. Over the last decade, we are proud to have worked on many historic monuments and high profile buildings of architectural importance. Amongst our most prestigious work are refurbishments on the Foreign & Commonwealth Office, The British Museum in London, The Royal Liver Building and Manchester Royal Exchange. Quadriga Contracts Ltd are a Stone Federation member. Our core values of innovation and transparency allow us to lovingly restore historic buildings while maintaining a commercial awareness of time and cost efficiency.