SuniD & J windows was founded in 1979 by Derek and Janyce Coldrick. Derek began by manufacturing and fitting uPVC windows and doors. In 1993 he bought a workshop in Gloucester Street, Cirencester. 

In 1992 his son David came back to Cirencester after completing qualifications in civil engineering. He worked with his dad at D&J windows for seven years mainly manufacturing and fitting but also experiencing every other aspect of the business. David then moved to Leicester where he spent three years as an installations manager at a reputable double glazing firm. 

In 2004 David returned to Cirencester with his wife and they now manage D&J windows together. 

We pride ourselves in our standard of work and aim to run a friendly local business.


We think you will find our prices competitive because we are a small business with low overheads. As we are small we can also maintain a high standard of work whilst keeping prices low. 

We are unable to provide a price list or a guide as every job is completely individual and each window/door is made to measure. 

We don’t believe in sales pressure as we think it is important that you make your own decision.

DJ Accreditations

Get In Touch!

Mobile: 07720 608393

E-mail: sales@d-jwindows.com