Church Windows. H&R Developments specialise in the design, manufacture and installation of bespoke architectural metalwork, innovative glazing systems and window protection for churches and listed buildings. Stained glass window. Relevant products have been approved by English Heritage and the Diocesan Advisory Committee, and we have contributed to many prestigious projects including work on Ely Cathedral, Gloucester Cathedral, Leicester Cathedral, Ealing Abbey, Brecon Cathedral and St Chad's Cathedral (Birmingham). Secular clients include the National Trust and City Councils. Church windows. The key to our success and reputation is our specialist knowledge and understanding of the practical and aesthetic issues associated with listed buildings. Our skills and versatility allow us to respond to often unique challenges