Haddonstone was established in 1971 to produce high-quality decorative stonework. The company had a range of just seven designs to offer during the first year of business. Haddonstone’s collection has subsequently grown to over five hundred standard designs, with the company gaining an ever increasing reputation for its expertise in the manufacture of custommade architectural stonework. Today, Haddonstone is recognised as an international market leader with group companies in the United Kingdom and the United States of America.

The Haddonstone collection comprises the standard range of designs and is the most comprehensive of its kind produced anywhere. Every single item is the work of highly skilled craftsmen. Pieces from the range have been chosen for the construction and renovation of some of the world's most famous buildings, including palaces, stately homes, National Trust properties, international hotels, state buildings and gardens, as well as private houses and gardens of every description.

The demand for classical elements, both in landscape and architecture, has led to Haddonstone's continuing expansion. From modest beginnings in 1971, by 1987 the company had moved its manufactory to a purpose-built complex at Brixworth in Northamptonshire. The two hectare (five acre) site incorporates Haddonstone's 5,000 sq m (54,000 sq ft) manufactory, studio and mould shop complex together with an extensive stockyard and loading area. The premises were extended in 1988, 1991, 2000 and 2002 to provide some of the most advanced mould making facilities in the country together with a laboratory, vapour curing chamber and TecStone production facilities. The manufactory is located just six miles from the Haddonstone Group headquarters and show gardens at East Haddon.

Haddonstone (USA) Ltd was formed as a subsidiary of Haddonstone Ltd in 1990, operating from a 1,100 sq m (12,000 sq ft) warehouse with yard and offices in Bellmawr, New Jersey. During 1996 a 2.5 hectare (6 1/4 acre) site was acquired in Pueblo, Colorado on which a manufactory was constructed. This incorporated a purpose-built mould shop, production facilities for both Haddonstone and TecStone, a large stock-yard and loading docks. In 2000 a vapour curing chamber was added to the production unit and the size of the stock-yard was doubled. In 2003 the Colorado facility underwent a major expansion with the creation of additional offices, a new mould shop and an expanded TecStone production area.

In 2000, Haddonstone launched Arcadian Garden Features and Haddoncraft Forge as part of a diversification programme.