Heritage restoration with Bentheimer sandstone

Heritage Conservation

Restoration & Denkmalschutz

Specialist expertise in heritage building conservation with historically authentic Bentheimer sandstone.

Heritage Restoration & Conservation

From the same quarry. The same geological formation. Authenticity guaranteed.

For over a millennium, Bentheimer sandstone has been the material of choice for Europe's most prestigious buildings. When these landmarks need conservation, we are the authentic source — the same quarry, the same stone. Our restoration team combines centuries of stonemasonry tradition with modern conservation science to ensure every intervention meets the highest heritage standards.

Our Expertise

What We Offer

Authentic Stone Matching

Because we quarry from the identical geological formation used for centuries of European construction, our stone is a genuine match to the original — not an approximation. We provide colour, texture, and structural analysis to ensure seamless integration with existing masonry.

Heritage Authority Collaboration

We work directly with German Denkmalschutzbehörden (heritage protection authorities), Dutch Monumentenzorg agencies, and conservation architects across Europe. Our documentation meets the requirements of Landesamt für Denkmalpflege and equivalent bodies.

Custom Profiling to Original Dimensions

Using a combination of 3D laser scanning and CNC machining, we reproduce original stone profiles — cornices, mouldings, ornamental details — to exact historical dimensions. Each replacement block is individually crafted to integrate seamlessly.

Modern Conservation Technology

Our workshop employs laser cleaning, micro-emulsion treatments, and advanced consolidation techniques alongside traditional hand-tooling. We select the approach that best preserves the historical fabric while meeting modern structural requirements.

Project Documentation & Certification

Full material traceability from quarry face to installation. We provide geological provenance certificates, test reports per EN standards, and photographic documentation for heritage compliance files.

Track Record

Notable Restoration Projects

Burg Bentheim — ongoing structural conservation (2025)
Evangelisch-Reformierte Kirche Bad Bentheim — facade & roof restoration (2024)
Baroque Forstpark Bad Bentheim — landscape restoration (2020)
Historic bridges and medieval fortifications across Lower Saxony
Numerous church baptismal fonts and civic monuments in the Netherlands

Planning a Restoration Project?

Whether you are conserving a medieval castle, restoring a baroque church, or repairing a historic civic building — we provide the authentic stone and specialist expertise.