STONEMASONRY

With significant experience and skill ensuing from an extensive history in the stonemasonry industry, Architectural Stone offers a wide range of masonry services which can be tailored to suit the individual needs of client or project.

 

MASONRY SUPPLY

We offer a wide range of natural stone products, from bespoke hand carved masonry and one off replacements for stone restoration and repairs. To large scale supply of masonry for new build and landscaping.

 

FACADE CLEANING

Architectural Stone are experienced in the cleaning and restoration of traditional masonry, ecclesiastical buildings and monuments as well as historical and listed properties.

 

RESTORATION

Architectural Stone boasts an impressive history of working with natural stone for nearly two hundred years. We are hence able to use our expertise to advise on the extent of repairs which are required, as well as suggest the most suitable materials, treatment and method for restoration.

 

CONSERVATION

Architectural Stone boasts an impressive history of working with natural stone for nearly two hundred years. We are hence able to use our expertise to advise on the extent of repairs which are required, as well as suggest the most suitable materials, treatment and method for restoration.

 

INSTALLATION

Architectural Stone boasts an impressive history of working with natural stone for nearly two hundred years.

We are hence able to use our expertise to advise on the extent of repairs which are required, as well as suggest the most suitable materials, treatment and method for restoration.

 

BESPOKE CARVING

Our skilled in-house banker masons expertly carve intricate detail to exacting design specifications.

We can produce anything from stones with simple chamfers to tracery windows, detailed mouldings and the more classical architectural building masonry.

 

FIREPLACE & SURROUNDS

We offer a full range of predesigned natural stone fireplace surrounds. Our designers have produced a number of classical styles to suit multiple client needs, all the while retaining an ambiance of elegance. Once our clients have picked their preferred style, we then produce a made-to-measure surround to fit their fireplace and install it.

 

MATERIALS

LIMESTONE

Limestone is a sedimentary rock that contains a high percentage of calcium carbonate. It is formed by the accumulation of shell, coral, algae and fecal debris overtime through the rock formation process. There are many types of limestones available, whether they are French or German imports or quarried here in the UK. However, the most commonly used in South Wales and the West of England are:

– Bathstone

Bath Stone is an Oolitic Limestone comprising granular fragments of calcium carbonate. Originally obtained from the Combe Down and Bathampton Down Mines in Somerset, its warm-honey colouring gives the World Heritage City of Bath its distinctive appearance. An important feature of Bathstone is that it is a ‘freestone’, so-called because it can be sawn or ‘squared up’ in any direction, unlike other rocks such as slate, which forms distinct layers and is unsuitable to carve.

– Blue Lias

The Blue Lias is a geologic formation in southern, eastern and western England and parts of South Wales. The Blue Lias consists of a sequence of limestone and shale layers, laid down between 195 and 200 million years ago. Blue Lias is useful as a building stone, and as a source of lime for making lime mortar. Since the mid-nineteenth century, it has been used as a raw material for cement, in South Wales, Somerset, Warwickshire and Leicestershire. Occurrences of Blue Lias can be found in buildings local to its source as well as the local churches and cemeteries (where it is traditionally used in tombstones). It is popular in modern-day surroundings where it is still used in the construction of new housing developments and extensions for existing buildings in conservation areas. Blue Lias is mainly used in flooring, walling and paving slabs – both coursed and layered. It is evident too in the making of flagstones and cobbles.

– Portland

Portland stone is a limestone from the Tithonian stage of the Jurassic period quarried on the Isle of Portland, Dorset. The degree of cementation in Portland Stone is such that the stone is sufficiently well cemented to allow it to resist weathering but not so well cemented that it can’t be readily cut and carved by masons. 

 

Portland Stone is favoured as a monumental and architectural stone.  It has been used extensively as a building stone throughout the British Isles, notably in major public buildings in London such as St Paul’s Cathedral and Buckingham Palace. 

Limestones are not consistent in colour – Portland is almost white in colour, Bathstone is more creamy gold in appearance and Blue Lias is grey blue. It is assumed that all stone is quarried, however, the interesting fact about Bathstone is that at present it is mined rather than quarried like Portland and Blue Lias.  Limestone has been extensively utilised as a building material. The city of London is mainly built from Portland stone, as well as Cardiff Civic Centre. When you arrive in the City of Bath, the majority of buildings are made of Bathstone including some of the city’s most famous landmarks – the Royal Crescent and The Circus. Due to its characteristic, Blue Lias is mainly used for walling throughout South Wales and South West England.

GRANITE

Granite is a common type of intrusive, felsic, igneous rock which is granular and coarse in texture. This rock consists mainly of quartz, mica, and feldspar.

This mineral composition usually gives it a red, pink, gray or white color with dark mineral grains visible throughout the rock.

Granite is the rock most often quarried as a ‘dimension stone”‘ (a natural rock material that has been cut into blocks or slabs of specific width, thickness and length). Granite is strong enough to bear significant weight, hard enough to resist most abrasion, inert enough to resist weathering and can be polished to a brilliant standard. These characteristics make it a very desirable and useful dimension stone.

MARBLE

Marble is a non-foliated metamorphic rock composed of recrystallised carbonate minerals, most commonly calcite or dolomite.

Metamorphism causes variable recrystallisation of the original carbonate mineral grains.  The resulting marble rock is typically composed of an interlocking mosaic of carbonate crystals.  Pure white marble is the result of metamorphism of a pure limestone or dolomite protolith.

The characteristic veins and swirls of many colored marble varieties are usually due to various mineral impurities such as clay, silt, sand, iron oxides, or chert which were originally present as grains or layers in the limestone.

Marble is commonly used for sculpture and as a building material.

SANDSTONE

Sandstone is a sedimentary rock that contains minerals the size of sand / rock grains. There are many types of sandstones available. However, the most commonly used in the South Wales and West of England are:

– Welsh Pennant

– Forest of Dean 

– Yorkstone

– Red St Bees 

Sandstones vary in colour, Welsh Pennant is blue / grey with red oxides. Forest of Dean colours vary considerably depending on the seams of the quarry. The colour finishes available are blue, red and mixed colour of brown / grey. Yorkstone is a buff golden colour and Red St Bees is red with slight veining. Sandstone is quarried and some still use the traditional plug and feathered method.  Sandstone is a hard stone – it is often used for paving, walling and copings. Yorkstone, Forest and Red St Bees work well for cladding and are aesthetically pleasing.

SLATE

Slate is a fine-grained, foliated, homogeneous metamorphic rock. It is derived from an original shale-type sedimentary rock which is composed of clay or volcanic ash through low-grade regional metamorphism.

Slate is most commonly known for its use as a roofing slate, although it can be used for interior and exterior flooring, stairs, walkways and wall cladding. Tiles are installed and set on mortar and grouted along the edges. Chemical sealants are often used on tiles to improve durability and appearance, increase stain resistance, reduce efflorescence, and increase or reduce surface smoothness.

Office Location

285 Cowbridge Road West,

Cardiff, South Wales, CF5 5TD

Open Hours

Mon-Thurs: 8.30am – 5.30pm,

Fri: 7.30am – 4.30pm

Sat-Sun: Closed