Care of traditional & historic buildings — Cardiff & South Wales
M.D.P. Heritage & Artisan Stone Masonry Lime Mortar Specialists
Based in Cardiff we provide stone masonry and specialist lime services across South Wales and the surrounding areas.
With over 35 years experience, we sympathetically care for historic, traditionally constructed and modern buildings, delivering expert hand-crafted services that will enhance the character and ensure the longevity of your property.
Whether you require repair, refurbishment, restoration, or new construction we will ensure the heritage value of your property is maintained and enhanced.
Protecting a building's historic character through careful repair, using like-for-like traditional materials and minimal intervention.
Stone Masonry
Stone masonry craftsmanship that lasts, from heritage repairs to modern installations.
Lime Mortar & Pointing
Bespoke hot-lime mortars suited to your building, promoting flexibility and healthy moisture management.
Cleaning & Consultation
Specialised, low-pressure superheated cleaning that protects fragile heritage materials — plus architectural design consultation for new work.
Over thirty-five years of craftsmanship
Based in Cardiff, we provide stone masonry and specialist lime services across South Wales and the surrounding areas. With over 35 years' experience, we sympathetically care for historic, traditionally constructed and modern buildings, delivering expert hand-crafted services that enhance character and ensure longevity.
Whether you need repair, refurbishment, restoration or new construction, we make sure the heritage value of your property is maintained and enhanced.
0Years' experience
0Region called home — South Wales
"Our experienced team understand traditional construction techniques and the importance of using the correct building materials."
Why traditional materials matter
Differences in construction and materials affect how a property manages moisture.
Cement & modern mortars
Vapour impermeable — traps moisture
Sets harder than the substrate
Inflexible — forms cracks
Hot-lime mortar
Vapour permeable — allows moisture movement
Less dense than the substrate
Flexible — reduced cracking
Selected work
Restoration, Conservation & Repair
Protecting your building's historic character through careful repair, using like-for-like traditional materials and minimal intervention, returning the building to its original state.
Our experienced team understand traditional construction techniques and the importance of using the correct building materials — differences in construction and materials affect how a property manages moisture.
Stone repairs to tracery windows.
County Treasure in the Vale of Glamorgan: the entire top section of stonework, including the crenellations, was disassembled after recording the stone placement of the folly, then precisely rebuilt. All cementitious mortar was removed externally and internally. The stonework cleaned and consolidated, with the structural integrity of the hollow sections of the walls addressed using an injected liquid lime void filler before pointing with lime. The existing openings were glazed and further enhanced with new internal oak lintels and repaired stone cills.
Existing dilapidated chimney reconstructed with reclaimed bricks and recycled stone.
Consolidation of stonework to medieval inglenook fireplaces and repointing with coarse lime.
Rebuilt external stair using existing stone and lime pointing.
Stone Masonry
Stone masonry craftsmanship that lasts, from heritage to modern installations.
New blue pennant stonework used in contemporary constructionStone repair to vaulted ceiling
Lime Mortar & Pointing
Specialist lime mortars are provided bespoke to suit your building. We predominantly use hot-lime without pozzolans, which dates back to Roman times. The unique composition of hot-lime promotes flexibility and moisture management. The free lime reacts with carbon dioxide over time, to heal small hairline cracks naturally.
Existing Edwardian chimney completely rebuilt, pointed and flaunched with lime mortar.
Before
After
Stonework cleaned following careful removal of cementitious mortar, then consolidated and repointed with coarse lime mortar.
Lime works to medieval church.
Supply
We can supply carved or natural stone along with reconstituted stone, stone dust and restoration mortars to suit your project.
Cleaning
We undertake specialised, low-pressure, superheated cleaning which helps to protect the fragile heritage materials and features. Both CADW and Historic England acknowledge the benefits of this specialised cleaning system.
Before
After
Before
After
All cementitious materials were removed from the stonework prior to specialised cleaning and repointing.
The natural beauty of the stone has been brought to the fore by removal of cementitious mortar, specialised cleaning, consolidation of stonework and repointing with coarse hot-lime.
Small tool repair and specialised cleaning.
Consultation, New Work & Landscaping
Consultation services for your existing or planned property, including architectural design and consultation. With our in-house registered RIBA architect.
New stone walling, structural work and landscaping.
Tell us about your building
Send a few details and we'll come back to you with next steps — a site visit is usually the best starting point for period and listed properties.
CADWEnglish HeritageHistoric EnglandGrade I & II* listed buildings
Current projects
Works in progress right now.
The Old Rectory
In progress
Cribwr Cottage
In progress
"MDP Heritage & Artisan Stone Masonry Lime Mortar Specialist can advise on, and undertake work to your traditional property resulting in a happier, healthier building, inside and out."
