A Window Onto SWA Domestic Project Winner 2025, The Cotswold Casement Company

At the 2025 Steel Window Association awards, the Domestic Project winner was named as The Cotswold Casement Company with an entry which centred around the Grade II listed farmhouse Wiltshire House.

Matthew Hahn, MD of The Cotswold Casement Company, shares insights into the company.

How long has The Cotswold Casement Company been in business? 

We were established in 1888, in the small Cotswold town of Moreton-in-Marsh. John H Pye set up in business as a casement maker.

Pictured left is (l-r) Carl Fisher Operations Manager and Matthew Hahn, Managing Director, for The Cotswold Casement Company.

By 1906, John was able to boast a wide range of contracts for his gunmetal, bronze and leaded glazing. From these beginnings, we laid the strong foundation upon which today’s company is based. Throughout the century, ownership of the business changed as the Pye family line passed on, but the traditions of metal window craftsmanship and quality have endured.

In 1957, the company became known as the Cotswold Casement Company - affectionately known locally as ‘Casements’ - and today it is the oldest manufacturing company in the town. As in 1888, we remain in private ownership, providing both personal commitment and a sound financial base.

Because of our vast knowledge of repairing, replacing and refurbishing windows, we are able to offer impartial advice to other professionals – from property or building maintenance personnel to local authorities, architects, surveyors or contractors. In addition, we have worked on many projects with National Heritage.

What is your core business?

We supply and fit domestic steel windows and doors. The construction is as follows:-

F series – for heritage works

W30 – for FENSA approved projects

W20 – For FENSA and internal door screens

W20 – for fire screens

50TB – for high performance windows and doors

How long has the company been a member of the Steel Window Association? And why?

From the start of the organisation, we believe that steel window companies are stronger together than working apart.

The Jam Factory in Oxford, once home to Frank Cooper’s marmalade business, where The Cotswold Casement Company refurbished the steel windows offsite. The Grade II-listed building now comprises over 1,000 square metres of modern office space and a separate café and art gallery.

What sets Cotswold Casements apart? What do you see as a competitive advantage you offer that other companies do not?

• We provide a full service; we do not subcontract to other companies

• We manufacture in the UK

• We fit the product ourselves

• We have achieved ISO 9001 to ensure very good quality

• We can offer our clients the whole range of steel products; everything from 1930 frames to thermal break

• If the client does not want to replace, we can also refurbish

• We have a large showroom to assist our clients

• We offer long guarantees

• We have a deliciated warranty department to assist clients if they have any issues after the install

  
  

Pictured is another stunning example of the company’s work; Portobello Farm, a homes and garden emporium offering eclectic products, where The Cotswold Casement Company installed industrial style W20 doors for an impressive finish.

How long has your oldest member of staff been working at Cotswold Casements? What makes an employee want to stay with the company? 

We have just celebrated one of our team who has been with the company for 30 years. Reasons for staying; he has a great boss!

For further information on the Steel Window Association or if you’re interested in becoming a member, please visit www.steel-window-association.co.uk