Corporate Members

English Heritage cares for over 400 historic buildings, monuments and sites - from world-famous prehistoric sites to grand medieval castles, from Roman forts on the edges of the empire to a Cold War bunker. We protect an internationally-important collection of historic sites and artefacts which span six millennia, from the ancient past to the present day and include palaces, houses, hill figures, castles, abbeys, industrial sites, Roman forts and even deserted medieval villages.

Historic England is the public body that looks after England's historic environment. We champion and protect historic places, helping people understand, value and care for them.

Cliveden Workshops were founded in 1982 for the preservation of National Trust statuary and decorative works on buildings. The company has since developed in to Cliveden Conservation Workshops and our expertise is now sought by various clients whilst retaining our position as by appointment sculpture conservators to the National Trust.

CTP Consulting Engineers, founded in 1987, has a team of three conservation accredited engineers. Working nationally and internationally in heritage engineering, appraisal of existing buildings, refurbishment and repair, infrastructure engineering, engineering sustainability, pre-planning advice and deep basement design. Clients include residential and commercial developers, schools, health trusts, ecclesiastical and multi-faith organisations, leisure companies and private individuals.

Quatra Direct Ltd manufactures a comprehensive range of ecologically sound lime based building products, supplying throughout the UK. The innovators in delivering silo mortar options for hydraulic limes. Available in a choice of natural earth tone colours. We also manufacture a range of traditional fat lime mortars, renders and plasters on sale through our Old House Store. www.oldhousestore.co.uk.

Singleton Birch Ltd is the UK's leading independent lime supplier, with a worldwide customer base. Our product range includes quicklime, hydrated lime, natural hydraulic lime, graded chalk, aggregates and other specialist products and services.

AKS Ward are construction consultants who place and emphasis on innovation, design, and sustainability. We are experts in our field, our services include Structural and Civil Engineering, Historic Buildings, Conservation and Building Surveying. We work on projects from small and bespoke to construction values in excess of £100 million. Our team of Engineers work closely with clients and their architects to realise their vision. We have offices in London, Oxford, Hitchin, Southampton and Birmingham.

Anglia Lime Company has pioneered the use of lime for repair, renovation, conservation and new-build since 1992. Resurrecting traditional recipes and methods that have stood the test of time in ancient houses whilst developing lime-based products with properties that provide innovative possibilities for designers of new buildings.

Archipedia New England (ANE) is a collaborative online encyclopedia of New England's architectural heritage compiled directly by a community of craftsmen, architectural historians, architects, and those who share a love of New England's building traditions. ANE fosters an appreciation of the value of New England's material culture to enrich present and future generations.

Artisan Plastercraft is a specialist in solid and fibrous plaster restoration and conservation, working nationwide on heritage and listed buildings. Our services include Fibrous Plastering, Lime Plastering, Lath & Plaster, External Lime Rendering, Glass Reinforced Gypsum and Jesmonite mouldings. We also manufacture a range of decorative plaster mouldings and bespoke architectural enrichments and are renowned for providing high quality match-to-existing plasterwork.

Martin Ashley Architects provides a full range of architectural and surveying services to assist owners, occupiers and custodians of historic buildings and estates towards their conservation, repair, adaption, alteration, change and development for ongoing beneficial use in the 21st Century.

At Bonsers, we've been proudly preserving the UK's most historic listed buildings for more than 50 years. We're a third-generation family business made up of skilled craftspeople and dedicated conservationists, all with a real passion for restoring and protecting our great British heritage.

Bosence Associates are a team of highly qualified buildings experts: specialising in historic and traditional buildings. We have many years of experience to draw upon and are committed to a jargon free, straight forward approach which places our clients at the heart of everything we do.

Bulmer Brick & Tile Co Ltd is a small family business continuing the traditions of brickmaking on this site dating back to the Middle Ages. All Bulmer bricks are hand made, using traditional methods of making, drying and are fired in a coal burning, down draught kiln. Bulmer bricks are made from the finest London Clays, dug from our seams almost continually since Tudor times. Bulmer continues to produce its own brick pozzolans, and stock a number of both fat and hydraulic limes as well as pre mixes. Quick lime is available on request.

The Canal & River Trust is a charity, protecting over 2,000 miles of waterways in England and Wales. We maintain 2,000 miles of canals and rivers, which are often over 200 years old, and responsible for an enormous network of bridges, embankments, towpaths, aqueducts, docks and reservoirs and more.

Caroe & Partners aim to provide an original and distinctive approach to new work combined with extensive experience and a scholarly approach to the care of historic buildings. Since its foundation in 1884 by W.D. Caroe, the practice has been associated with the care of historic buildings and imaginative new buildings on sensitive sites.

Celtic Sustainables specialise in the most natural paint, organic and environmentally friendly products that really perform, at the lowest prices; so you and your home can breathe easy. Our Green and eco friendly paint, decorating, building materials and home products can help with allergies and asthma; combat mould and damp problems; and help you create a beautiful, healthy home and garden without harming the environment.

Chalk Down Lime Ltd, established in 1996, is an independent, family-run business manufacturing and supplying our finest lime putty products and other traditional building and conservation materials throughout the South-East and UK. We slake and batch on-site pure English quicklime. We provide helpful technical advice and product information and have extensive knowledge of all the materials and techniques sold & used.

Appraisal, repair and conservation of all things old. To intervene in a historic structure, you become part of that physical history. That intervention has to be justified - by first getting to grips with how the thing works in the first place.

We are a dedicated team combining over 16 years of specialist contemporary knowledge and experience to repair, renovate and restore traditionally built cob and stone structures using earth and lime mortars, plasters and renders. We can now use hot lime mortars for the full range of applications.

Conisbee is an award winning civil and structural engineering design practice with offices in London, Norwich and Cambridge. We offer a collaborative, enthusiastic and responsive service with an efficient, innovative and creative design approach.

Conservation Building Services (CBS) have delivered works of outstanding quality ranging from St Govan's Chapel in south Pembrokeshire to Howsham Hall in north Yorkshire, via elegant Dublin town houses and impressive college chapels, from heavy construction to fine interiors.

Chartered Architect Accredited in Building Conservation with over twenty years experience specialising in the repair of historic buildings and churches. I also design traditionally inspired alterations.

CRL Restoration specialise in the repair, refurbishment, cathodic protection and heritage restoration of listed buildings and structures.

Crosby Granger Architects was established on a foundation of experience in specific specialist fields of architecture, focusing on the design of new and repair of old buildings and structures. With a specialism in heritage and building conservation, we can boast successful deliverance of repair and regeneration projects for Grade I and II* listed castles, public buildings, country houses, Scheduled Monuments, listed churches and manor houses, as well as new sustainable design. Combining experience in new design & historic building conservation naturally allows us to offer a holistic approach.

Edinburgh Stonemasons Ltd specializes in high-level inspection and structural maintenance. We do.
⛏ High-level structural maintenance
⛏ Video Inspection
⛏ Church Surveys.
⛏ Building Inspection.
⛏ Conservation.
⛏ High-level Stonemasons & Roofers
⛏ Stonemasonry
We have Stonemasons, Steeplejack, Roofers & Chartered Building Surveyor, all trained at working at height.
Stonemasons | Rope Access | Conservation

Gee & Co Ltd specialise in the repair & conservation of historical buildings & scheduled monuments. Gee & Co offers clear and specific historic building consultancy by experienced craftsmen providing a combined theoretical and practical service from one company. As skilled conservation practitioners with full membership of the highly respected 'Institute Of Historic Building Conservation' and 'Historic Environment Service Providers Recognition' Gee & Co is able to design, specify and complete all conservation requirements with as minimal intervention as possible

We do traditional haired lime plastering, internal and external lime renders, stone walling, all types of repair and repointing to stone and brick, hot mixes and all types of lime mortars, training and advice.

Global Heritage Group has worked on projects in more than 30 countries and 4 continents. We have artisans and craftsmen that undertake the following conservatioin services: lime plaster, lime stucco, gypsum plaster, masonry, carpentry, decorative finishes, green building and adaptive re-use.

Hendry & Sons are building contractors and suppliers of conservation building materials.

Principal Contractor providing conservation and maintenance works to historic and listed buildings. Our heritage experience includes restoration of Grade I, II* and II Listed private dwellings, commercial buildings, and churches. Based in Lancashire, our in-house team is led by time-served Craftsmen focusing on limeworks, bespoke leadworks and traditional roofing.

Herringbone Restoration, established in 2010, is a building restoration and stonemasonry contractor specialising in working on historic buildings and heritage properties. We have the resources to draw upon the correct specialised craftsmen for each task, never compromising traditional craftsmanship, quality or professionalism.

Hibbitt and Sons was established in 1890. We are one of the oldest most established and trusted companies in Cambridge.

Pride and quality is put in to everything we do. We combine the traditional skills and ethos of the stonemasonry craft and combine them with the wonders of modern technology to enable us to carry on looking after the rich heritage of Cambridge and bring the striking presence and beauty of stone to a wider market place more affordably. Our traditional values mean we believe in passing on the skills of the stonemasonry craft to the younger members of our workforce.

We are specialists in roped access, we undertake all manner of conservation work, often integrating ground level work, scaffolding, and rope access to meet a diverse range of needs. We offer a complete package from inspection through to restoration and an aftercare maintenance plan. Our experiences working with old buildings and love for historic architecture has honed our skills in the art of treading carefully. Through a personal interest in bespoke mortar design, application and discussion, we are always on the look out for opportunities to develop our knowledge and skills.

Historic Environment Scotland is the lead public body set up to investigate, care for and promote Scotland's historic environment. HES is responsible for more than 300 properties of national importance including Edinburgh Castle, Skara Brae, Fort George. HES is also responsible for internationally significant collections including more than 5 million drawings, photographs, negatives and manuscripts, along with 20 million aerial images of locations across the world.

Victoria Holland Architecture is a small team of architects and designers based in Arundel, West Sussex. We have a passion for carefully considered, well crafted buildings which are both sensitive to their surroundings and true to their function. We combine our expertise to achieve both excellence in design and provide notable architecture of its time and place.

Bristol Lime Services Ltd specialises in traditional lime mortar services for the restoration of period, historic and listed buildings. With years of experience in historic building conservation, we are passionate about preserving Bristols architectural heritage.

horncastle:thomas is a RIBA Chartered Practice formed in 2011 in the Isle of Man by Karen Horncastle + Martyn Thomas. Both have experience working on a variety of existing and new building types, including listed and registered buildings and new buildings in conservation areas. A belief in the value and benefits of good modern design underpins the practice's approach.

Lime plastering specialists

The LTM Group (Laing Traditional Masonry) was established in 1999 by Steven Laing as a masonry contractor specialising in the conservation, maintenance and repair of our built heritage. Steven's focus on high quality skilled workmanship, using traditional building techniques has placed LTM at the forefront of the conservation industry.

Lancaster Lime Works are industry-trusted professionals in restoring timeworn buildings, from old red brick to historic stonework. Our natural hydraulic lime products are quality and trustworthy and will provide a lasting legacy to your historic building.

The Landmark Trust is a charity that rescues important buildings that would otherwise be lost. We take on historic places in danger and carefully and sensitively restore them. By making them available for holidays, we make sure they can be enjoyed by all, both today and for future generations. We have in our care nearly 200 buildings in Britain, several in Italy and France and one in Belgium.

The Lime Company of West Wales (TLC) offers consultancy and training courses for private individuals and professionals, as well as a team of craftsmen who have saved over 50 buildings in West Wales.

Lime Green is a manufacturer of lime-based building materials. Lime mortars, lime plasters, lime renders and lime-based paints are all included in our Lime Green range, as well as systems which deliver highly effective interior wall insulation and external wall insulation.

Lincoln is one of only a few Cathedrals in England to have its own workforce dedicated to the conservation of the building. There are five craft teams: Stonemasonry and Conservation; Glazing; Carpentry/Joinery; Leadwork; Domus (Engineering and Maintenance). Stonemasons and conservators make up half the workforce, working on both the Cathedral and 82 Close properties.

Manifest Design Workshop Ltd is a multi-disciplinary architect's practice and craft workshop based in western Gloucestershire. We weave together architectural design with practical craftsmanship and philosophical research in our informed approach to building. Specialising in the conservation of historic buildings, we also delight in new designs carried out with traditional craftsmanship and natural, breathable, low-carbon materials.

Manx National Heritage exists to take the lead in protecting, conserving, making available and celebrating the Island's natural and cultural heritage for current and future generations, whilst contributing to the Island's prosperity and quality of life.

Masonry and Lime Ltd was established in 2010 by Hans Norling and Andrew Newcombe to provide specialist traditional masonry skills and services initially focused on small to mid sized projects covering the whole of Scotland.

Masons Mortar Ltd has been manufacturing and supplying quality lime products for the care and conservation of historic buildings since 1989. We currently have 3 branch locations: Edinburgh, Glasgow, and Fife. We stock: Quicklime, Lime putty, Trass, Pure Natural Hydraulic Limes, Modified Hydraulic Limes & Natural Cement. We also offer ready mixed dry bagged lime mortars for various applications including: Re-pointing, Building, Rendering, Plastering, Stone, Brick & Step repair. We now also provide insulating plasters & renders.

The Mortar Company (De Mortel Compagnie) are authentic builders of lime mortars and lime finishes for heritage conservation, unique for each project and historically justified. We use local raw materials, authentic methods and traditions. We believe that authentic preparation together with historically manufactured lime mortars are the building materials for our future. We combine our experience with traditionally prepared lime mortar with independent scientific mortar research. This way we ensure that your historic building and authentic craftsmanship will be preserved for future generations.

The National Museum of Denmark's Conservation Department is Scandinavia’s largest conservation institution, employing a large range of specialists. Apart from working with the National Museum’s collections, we also carry out restoration and conservation jobs for external customers. One of the main tasks at the Department of Building, Stone and Wall Painting Conservation is the conservation of medieval stone churches and the lime-based wall paintings found in these churches.

New Age Artisans offer old world wall systems, such as lime, clay or gypsum plaster and tadelakt, handcrafted to meet today's building needs.

Nidaros Cathedral is the world's northernmost medieval cathedral and Norway's national sanctuary. In 1869, the Nidaros Cathedral Restoration Workshop was founded with the purpose of restoring the Cathedral. The stone carvers are the nucleus of Nidaros Cathedral Restoration Workshop which also employs masons, plasterers, stained glass artists and smiths.

The Norwegian Defence Estates Agency (Forsvarsbygg) is a Norwegian government agency responsible for the real estate belonging to the Military of Norway. Forsvarsbygg also owns and manages former military installations that are part of the cultural heritage.

We are a small business with a background in Building Conservation that stretches back well over 30 years. Our conservation principles are firmly grounded in those of the SPAB, with their origins in the 1989 Fellowship.
Projects take us from the tip of Cornwall, via Lundy Island up to the Isle of Skye for clients such as the National Trust, Landmark Trust, English Heritage and Historic England.
We specialise in traditional lime pointing, sensitive masonry repair, ruin consolidation, cob reconstruction, and bespoke solutions for historic building dilemmas

Ornate Interiors combine time-served expertise, technical knowledge and creativity. Many of our highly trained team have spent a lifetime in the industry, and their skills and experience have earned them an enviable reputation for consistently providing effective plastering solutions with high quality products.

PAYE Conservation offer a refined service to Conservation Architects, Trusts & Bodies (such as Historic England and The National Trust) and a range of private clients looking to preserve and protect historic buildings and their contents. We have a complete range of in-house skills and as such are expert and proficient at providing everything from initial specialist Consultancy services through to the complete delivery of complex Conservation and Restoration projects.

Property Pathfinder is an independent firm of Chartered Surveyors with specialist knowledge of the Cotswolds and surrounding areas of Oxfordshire, Berkshire and Wiltshire. The majority of buildings we advise on are Listed as having special historic or architectural interest. We provide our clients with advice in three main areas, Building Surveying, Project Management and General Practice advice.

With a solid foundation in the masonry industry, Ravenstone Masonry and Conservation Inc. is specialized company whose focus is on prolonging the life and integrity of our architectural history. Our team is experienced in identifying sources of deterioration and failures in historic buildings along with the appropriate techniques for their repair. From initial consultation through to​​​​​​​​​​ the hand's-on repair and ongoing maintenance, Ravenstone Masonry and Conservation Inc. can provide a range of services to suit the individual client's needs.

Rickards Period Plastering provides a professional application of Traditional plastering techniques through-out East Anglia. Encompassing the provision of the haired /fibre chalk mix, bespoke pargeting, daub and clay plasters through to the new breed of Eco renders. Whether working within the precious historic environment or upon a unique Architecturally designed new build we endeavour to provide a skill set and delivery of a product at the height of our industry.

Rodney Melville & Partners is an established architectural practice specialising in the conservation, repair and alteration of historic buildings and the design of new buildings in historic settings.

Rose of Jericho was established in 1989 and is a leading manufacturer and supplier of materials used for the decoration & repair of traditional & historic buildings. We are fully familiar with the range of issues surrounding the appropriate treatment of older buildings and can advise on, and provide, materials tailored to the needs of individual projects. Our clients include Historic Royal Palaces, English Heritage, Cathedrals, the Landmark, Churches Conservation and National Trusts, but the majority of our customers live in cottages, townhouses, farmhouses and manor houses throughout the UK.

Roundtower has a wide range of products. Roundtower Natural Hydraulic Limes contain no additives and are not blended, consistently high quality results. Roundtower Natural Hydraulic Limes are suitable for new construction as well as building restoration and conservation.
Roundtower are continuously looking for stockists around the world, if you are interested in this opportunity, please do get in touch.

Ryedale Plasterers is a family business established in 1982. Over the years we've built an enviable reputation for excellence and are regarded as experts in the restoration of original plaster features. We offer bespoke and off-the-shelf products and services covering all aspects of lime plasterwork and decorative moulding.

Saint-Astier is a family owned enterprise producing natural hydraulic limes of excellence for over four generations. Its history is one of deep-rooted values, passion and know-how shared and carried on by a team of over 135 collaborators and technicians. Saint-Astier limes are used to conserve, restore and enhance all types of renovations from Historical Monuments to Listed, Vernacular and even modern sustainable architecture. Their intrinsic qualities, their consistency and regularity, and their ease of use all contribute to the success of any project from the simple to the most ambitious.

The Scottish Lime Centre Trust promotes the knowledge and traditional skills required for the conservation, repair and maintenance of the historic built environment. We work nationally and internationally to provide advice, guidance and traditional skills training for anyone dealing with a historic structure, be it an A-listed castle or a garden wall.

Simpson & Brown is one of the United Kingdom's leading conservation practices, with a reputation for high quality new work. We undertake projects throughout the United Kingdom and overseas, with projects ranging from the conservation of major historic buildings to elegant contemporary new buildings.

Stone Tech is a specialist stone restoration and stonemasonry contractor based in Middlesbrough in the northeast of England. Established in 1984 our stonemasons are experts in natural stone construction, stone repair and conservation. Conserv. is one of our brands.

Stone & Lime Co Ltd operate in Fife and the surrounding area specialising in the conservation, restoration and repair of historic and traditional buildings. Established by stonemason Craig Westwater and expert limeworker Graeme Frew, Our combined knowledge and craft base ensures your building is in the best hands. We carry out any scale of project from small private repairs to large commercial restorations.

Sally Strachey Historic Conservation are leading consultants and conservators of historic buildings, monuments and sculpture. We offer a unique combination of the academic and the practical, underpinned by over 30 years stone conservation experience.

The Structural Repairs team is highly skilled and passionate about construction. With a combined total experience of well over 35 years, we have seen and experienced nearly every possible structural problem and take pride in never having failed to provide a sound solution for a structural repair.
An overview of our main services include:
-Underpinning, Piling and Ground Stabilization
-Crack Stitching, Concrete &Masonry Repairs and Brick Cleaning.
-Waterproofing, Tanking and Groundwater Sumps & Pumps.
-Timber Treatments, Resin Repairs and Building Monitoring.

The Traditional Lime Company aims to promote the use of lime building products by offering a complete service. With experience gained over two decades we can provide expert technical support that includes mortar analysis, on site guidance and advice. We can design mortar mixes to replicate historic mortars using our comprehensive sand library and we work together with specifiers to create the correct products for each project.

Treasure & Son has over 250 years of expertise in the renovation, repair and conservation of old and historic buildings. Today we work for a wide range of clients on contracts both large and small. These projects vary from the consolidation of ancient monuments to the restoration of Georgian timber framed houses. We are a family business and many of our employees are related to one another.

Triton, founded 1989, are specialists in external refurbishment with an emphasis on architecturally significant buildings. Past projects include the Royal Exchange, The Foreign and Commonwealth Offices, the Lyceum Theatre, the Athenaeum Club and the Criterion Theatre. Triton Building Restoration have been trading under the same ownership longer than any of its competitors.

UK RESTORATION SERVICES is a highly skilled team of restoration specialists. Completing projects on period buildings and structures throughout the UK, we provide our own in-house team to see through projects from start to finish.

Vitruvius Building Conservation Ltd offers Historic Building Conservation & Rope Access Specialists

Harry Cursham launched Vivus Solutions in 2016. Harry is an expert in historic building conservation with 30 years of historic research, observation, experimentation, practical use and thorough testing of lime-based products.

Ward & Co is one of the leading building conservation main contractors in the South of England, working on projects with a value of up to £5 million. Clients include English Heritage, Historic Royal Palaces, The National Trust, Natural England and The Historic Churches Trust, as well as many private owners. We enjoy strong working relationships with leading architects and other professionals engaged in conserving the built heritage.

Waterside present to you a complete and holistic building service of which Ground works, Bricklaying, Plastering, roofing, Electrical Installation, Gas and Central Heating, Plumbing services, new builds, large and small extensions, property remodels and refurbishments, Kitchen and bedroom design, Carpentry and Joinery (First and Second fix) and Painting and decorating, Project Management and feasibility Studies are all amongst our specialisms.

Stonewest is one of the Country's leading building restoration, conservation and stonemasonry companies. We pride ourselves on delivering landmark restoration, conservation and new build projects of the highest standard in the sector and are experienced in working in occupied buildings and around the needs of the building user, whilst maintaining the integrity of the programme of works.

Triskele Conservation is a project management and construction company with specialist expertise in the maintenance, repair and sympathetic refurbishment of historic buildings and monuments.

Family Business : Traditional Skills: Repair and Conservation of Historic Buildings

We supply our comprehensive range of traditional, natural and sustainable building and decorating products to builders, conservation specialists and home owners throughout the UK.

Whether it’s a cottage or a castle we pride ourselves on our service and offer full technical support and friendly advice. Projects supplied include The Royal Opera House, Windsor Castle, Ashton Court and Spitalfields Historic Buildings Trust. We supply direct to customers as well as through builders merchants and specialist outlets throughout the UK.

York Minster is one the world's most magnificent cathedrals. Since the 7th century, the Minster has been at the centre of Christianity in the north of England and today remains a thriving church rooted in the daily offering of worship and prayer.
The Minster is one of few cathedrals to house its own Stoneyard on-site to help maintain the fabric of the building. Here stone masons, joiners and a host of crafts men and women ply their skills to conserve the cathedral’s buildings and precinct.