Anglesey Masonry Logo

contact Anglesey Masonry



Anglesey Masonry have been producing excellent quality limestone since the 18th Century.

At the time there were several quarries along the North East coast of Anglesey, namely, Traeth Bychan, Benllech, Castle Rock (Red Wharf Bay), Llandona, Penmon and Flag Staff. All the quarries produced block for the two bridges over the Menai Straits. Aber Quarry is now the only remaining quarry in production; we have large stocks of Grey Limestone ready for extraction. Our stone is suitable for all kinds of applications - being quite a hard limestone it takes a high polish and has excellent weathering properties. From garden & home stone products through to large scale building projects and bespoke renovation - Anglesey Masonry can cater for any stone requirement you may have.


Limestone is an important stone for masonry and architecture, vying with only granite and sandstone to be the most commonly used architectural stone: it is readily available and relatively easy to cut into blocks or more elaborate carving. It is also long-lasting and stands up well to exposure. Because of impurities, such as clay, sand, organic remains, iron oxide and other materials, many limestones exhibit different colors, especially on weathered surfaces.

Limestone was also a very popular building block in the Middle Ages in the areas where it occurred since it is hard, is durable, and commonly occurs in easily accessible surface exposures. Many medieval churches and castles in Europe are made of limestone. Beer stone was a popular kind of limestone for medieval buildings in southern England. Further back the Great Pyramid of Giza one of the Seven Wonders of the Ancient World, was built from limestone.

anglesey geological map

Our Carboniferous Limestone occupies a broad area south of Lligwy Bay and Pentraeth, and sends a narrow spur in a south-westerly direction by Llangefni to Malltraeth sands. The limestone is underlain on the north-west by a red basement conglomerate and yellow sandstone (sometimes considered to be of Old Red Sandstone age). Limestone occurs again on the south coast about Llanfihangel and Llangoed; and in the south-west round Llanidan on the border of the Menai Strait. Puffin Island is made of Carboniferous Limestone.

Limestone is a sedimentary rock composed largely of the mineral calcite (calcium carbonate: CaCO3). The deposition of limestone strata is often a by-product and indicator of biological activity in the geologic record.


Our stonemasons can offer Anglesey Limestone in a variety of different finishes depending on the application. Here are just five of our most popular finishes, please click the images for more information...

Click image to enlarge
Click image to enlarge
Click image to enlarge
Click image to enlarge
Click image to enlarge

our quarry work OUR WORK

The gallery (right) shows a selection of our stonework and gives a brief insight into our quarrying, techniques and our stonemasonry.

Please click the image to enter