We have wide experience in the conservation of medieval glass. The company have worked on major schemes of historic glass from the great cathedrals at Winchester and Salisbury as well as many of our most important parish churches.At present we are undertaking the conservation of the great Jesse Tree window from Wells cathedral.

This work is underpinned by the 30 years experience of the company director, and the fact that several of the key staff have been with the company since it was founded . Our work encompasses all aspects of the conservation process, from the report stage through conservation to the provision of full conservation records. We work regularly with leading architects, English Heritage and the National Trust. Through accreditation To ACR level of two working directors with the Institute for Conservation (ICON,) this workshop is recognised as being capable of carrying out works to the highest standards to historic glass of any period.

We routinely act in a spirit of collaboration with a leading specialist in the study of the built environment, and can specify and supervise systems for environmental monitoring before and after conservation. We also work with conservation scientists and biologists from the University of Bristol to assist us in a better understanding of the complex processes of the degradation of historic glass, and to evaluate the impact of colonization by algae and lichens.

Holy Well Glass is the UK's leading studio in the design and manufacture of protective glazing systems for historic glass. Our carefully formulated philosophy concerning this method of preventive conservation is set out in the section on Protective Glazing. Our installations of protective glazing are always supported by scientific monitoring.

Illustrated is a detail from the superb 15thC glass at St. Winnow, Cornwall, recently conserved in our workshop.