Restoration and conservation

Through years of intensive work with a wide variety of tasks in the context of the conservation and restoration of architectural monuments made of stone, we have been able to acquire extensive expertise.

Continuous research and further development of material science, learning and practical application of historical working techniques, consulting and monument-appropriate execution under the professional supervision of planning and architectural offices, authorities and recognised monument institutions are our daily practice.

Service areas:

Natural stone:

- Exposure of historic stone stock, cleaning with various substance-preserving methods (individual objects, building-bound plastic, façades)
- Reduction of salt compounds harmful to the building in compressor systems with success monitoring
- Differentiated binder consolidation in the KSE system or acrylate-bound
- Crack protection on historic stone stock by means of bonding and injections, Partial securing, securing measures using microneedles, needle anchors and staples
- Repair of joint networks with purely mineral, plastic-modified or epoxy resin-bonded joint materials, lead grouting
- Faulty areas are filled with mineral-bonded or plastic-modified stone filling systems adapted in colours, grain sizes, binder matrix, executed in accordance with the surrounding historical stone substance. surrounding historical stone substance
- Faulty areas replaced with natural stone, in original material, profiling, surface treatment, mineral or plastic bonded, integration of stainless steel securing elements, exact copy of dimensions, shaping and stone cutting, production of templates, work planning
- Replacement of severely damaged or missing ashlar by new production in accordance with the surrounding stock, including work planning, Procurement of rough or cast stone, traditional handcrafted stone processing including removal of old parts and assembly with necessary structural safeguards
- Copying of sculpturally shaped architectural ornamentation using the stippling method, production of models and bozzetto's in clay, plaster, casts
- Colour settings, glazes and fine retouching of off-colour stone areas or additions, hydrophobing, impregnation
- Documentation in words and pictures, mapping, specifications

Plaster restoration:

- Exposure of historical plaster, cleaning with various substance-preserving methods
- Analysis of binders and grain fractions of the aggregates of historical plasters
- Reduction of building-damaging salt compounds in compressor systems with success monitoring
- Differentiated binder consolidation in the KSE system or acrylate-bound
- Crack protection through injections, injection, needling, spiral anchors
- Partial plaster additions using lime and lime-cement techniques, traditional techniques
- New plaster, multi-layered using lime and lime-cement techniques, traditional techniques, surface finish to match the existing building
- Plastering of cornices and decorative trim with sledges and templates
- Colour finishes, silicate or lime-bonded

Clinker restoration:

- Cleaning of clinker brick surfaces to protect the substance and surface
- Treatment of the joint network of clinker brick surfaces with adapted mineral joint mortars
- Replacement of desolate individual clinker bricks or groups of historical surfaces
- New construction of clinker brickwork, matching the existing structure by reproducing historical clinker brick formats, matching in colour, surface and stone setting
- static stabilisation
- completion of missing areas using mineral or plastic-bonded stone replacement systems
- glazing and fine retouching of off-coloured stone areas or additions, hydrophobing, impregnation

Cast stone:

- Cleaning and exposure of surfaces made of cast stone or in-situ concrete
- Replacement of imperfections in cementitious and/or plastic-bound application systems
including reinforcement preservation
- Colour finishes, glazes and fine retouching of off-colour concrete areas or additions, hydrophobing, impregnation

Are you interested in a consultation or a quotation for a restoration project?

We look forward to receiving your enquiry.