Surveys & Reports

Condition reports, conservation management plans, and conservation repair strategies.

Surveys & Reports

Examining stained glass, understanding significance, and identifying condition issues prior to any work being carried out is absolutely essential. Without this knowledge it is impossible to understand problems or schedule works with confidence.

We have extensive experience of inspecting and assessing stained glass and historic glazing. This experience and knowledge along with our academic qualifications enable us to put together condition reports and conservation plans for glass of historic significance and architectural or artistic merit.

We have completed stained glass condition surveys for all manner of purposes, including grant funding requirements by organisations such as the National Lottery Heritage Fund, Cadw, and English Heritage.


Our approach to survey work and reporting follow domestic and internationally recognised standards, including the following guidance:

Corpus Vitrearum Medii Aevi (CVMA)

CVMA, Guidelines for the Conservation and Restoration of Stained Glass (Nuremberg, 2004)

The Institute of Conservation (ICON)

ICON, Icon Professional Standards and Judgement & Ethics (London, 2020)

The International Council on Monuments and Sites (ICOMOS)

ICOMOS, The Venice Charter for the Conservation and Restoration of Monuments and Sites (Venice, 1964)

European Confederation of Conservator-Restorers’ Organisation (ECCO)

ECCO, Professional Guidelines Parts I - III (Brussels, 2002)

The Institute of Historic Building Conservation (IHBC)

IHBC, Conservation Professional Practice Principles (2017)

Historic England

Historic England, Stained Glass Windows: Managing Environmental Deterioration (2020)

Why Recclesia

We are one of the most capable, experienced and knowledgeable specialist glass studios in the UK. Our survey work is trusted and commissioned repeatedly by architects and organisations including the National Trust, English Heritage and Cadw. We have decades of experience carrying out remedial conservation work to hundreds of windows here in the UK and in the Republic of Ireland, so we know what we are looking at and how to ameliorate difficult problems with a light touch and to best conservation standards.