Make your period property in Oxfordshire warmer and more sustainable for the future with Mitchell & Dickinson

Crafted energy-saving secondary glazing and insulation for period homes and listed properties in Oxfordshire.

Mitchell & Dickinson’s CosyGlazing is a unique secondary glazing system that is elegant and effective, with a strong return on investment.

Designed specifically for period homes and listed properties, it is the perfect solution when it comes to insulating the elaborately detailed entrances and windows of Oxfordshire’s medieval, Georgian and Victorian buildings.

Made of a modern, lightweight equivalent to glass, it’s fixed using high-tech magnetic tape so it is easy to remove and virtually invisible. Choose a finish to complement your period or listed property.

We also provide high quality draught proofing for period properties such as sheep’s wool insulation for under floors, lofts and sloping ceilings.

Quality is at the heart of everything we do. Our team of experienced craftspeople can install CosyGlazing secondary glazing; elegantly seal draughts with concealed brushes and hidden seals; make your lofts and floors cosy with sheep’s wool loft and underfloor insulation; stop the cold spots with sloping ceiling insulation; and restore windows and doors to their former glory.

With our teams in Banbury, Bristol, Newbury, Surrey and Devon we work for owners of listed and period properties across the South and Midlands. Our innovative secondary glazing and insulation solutions are well suited to preserving Oxfordshire’s celebrated architecture, fine examples of which can be found in areas such as Oxford, Banbury, Abingdon, Biscester, Witney, Wallingford and Chipping Norton plus other places in this beautiful county.

Listed Buildings

Our secondary glazing and insulation products and services are designed for heritage properties


Our teams have amassed a huge amount of experience restoring and renovating sash windows to older properties across Oxfordshire and surrounding areas such as Oxford, Banbury, Abingdon, Biscester, Witney, Wallingford and Chipping Norton plus other areas in this magnificent county.

Secondary Glazing in Oxfordshire

Introducing CosyGlazing, our advanced secondary glazing solution

Loft Insulation

Our sheep's wool insulation keeps your period property toasty in winter and saves on your fuel bills


The easiest way to combat heat loss, particularly in a period property, is to insulate it