Bygone Sash Windows 

By faithfully blending the beauty, proportions and elegance of original sash windows with today’s modern materials and manufacturing techniques, we can offer the stunning Bygone Collection. Authentic sash windows that remain faithful to the spirit of the past 300 years.  
Our sash windows are also available in timber. Please visit our timber window page for more information. 
Diamond sash windows are finished in White or Cream  
effect uPVC as standard. 
Energy Savings 
We are proud to announce that our windows are now  
BFRC A rated  
as standard and Energy Savings Recommended by the  
Energy Savings Trust. 
Secured by Design 
Secured by design as standard  
- a police preferred product. 
Traditional Bespoke Cam Catches 
Cam catches are a weak point on a sash window and were easily opened by unwelcome visitors. Bygone have specially developed solid locking catches, secured directly into steel reinforcing within the sash. 
Limit Stops 
Limit stops are devices that prevent a window being opened beyond  
100mm initially,  
An important safety feature for  
young children
View Masterframe YouTube video showcasing the Bygone Symphony window:- 
Continuous Horns 
Bygone sash windows have integrated continuous horns, which are so essential  
to achieving a truly authentic  
sash window appearance. 
Authentic Georgian Bar 
Bygone windows have triple fastened (for strength) internal & external Georgian bars, which give a high quality authentic look. 
Most “cheap” replacement sash windows have Georgian “canes” placed in between two sheets of glass. This makes it obvious at a glance that your home has cheap double- glazed sash replacements as they do not have the depth, character and shadow lines which make sash windows with Georgian bars look so good.  
Installing across Dorset, Wiltshire, Hampshire  
in Poole, Bournemouth, Dorchester, Christchurch,  
Salisbury, Southampton and the New Forest 
"The new windows and glass roof are wonderful! They make an enormous difference to the house. The installers were efficient, polite, more than competent and cleaned up brilliantly after working incredibly hard each day. The products are excellent but the installers are what set the very high standards you achieve. I wouldn't hesitate to recommend Diamond and thank you for the enormously successful project"  
R9 Windows & French Doors,  
Bygone Sash Windows and Conservatory Roof -  
Sir & Lady Coleridge. LONDON SW13 
"Positive experience from initial contact to completion. No aggressive sales. Polite and professional with a friendly approach. Good knowledge of products & a keen eye for detail and craftsmanship. Excellent!"  
Bygone Sash Windows -  
Mr Davis. Blandford Forum 
"Sales process very efficient. Very satisfied with product quality. Fitting team helpful and professional"  
R9 Windows & Solidor Stable Door -  
Mr Fraser. Brockenhurst 
"We chose Diamond because they are authorised installers for Bygone heritage style sash windows. Even though they are based in Poole, they were happy to take on this job on the Isle of Wight and the MD visited the property personally both before and on completion of the job. Two installation teams attended and were clean, efficient, purposeful and paid very close attention to detail and to getting things right. It was clear they took great pride in their work. From this experience we would unreservedly recommend Diamond when quality of product, service and workmanship is key" Bygone Sash Windows -  
Mr & Mrs Cullum. Bembridge, Isle of Wight 
'Very reliable company. Good knowledge of replacing windows in a Conservation area. Friendly staff throughout whole process" Timber Windows -  
Miss Minns. Poundbury 
"First class service. Excellent product and workmanship, helpful and polite"  
Timber windows -  
Mr Minns. Poundbury 
'Diamond Home Improvements were excellent throughout. Their sales people and workers were of a very high standard"  
Fascias, Soffits & Guttering -  
Mrs Bell. Christchurch 
"The two fitters were a credit to the company. Clean, tidy, polite and the quality of workmanship and product is very good"  
Canopy Roof -  
Mr Smith. Poole 
"Fast experienced team, confident they could do the work. Exceptional cleanliness, good humour and very polite. Very pleased"  
Bi-fold Doors, uPVC Window and Solidor Front Door -  
Dr Campbell. Gosport 
"From first enquiry to completion the service was excellent. The standard of work, politeness of the contractors and overall work couldn't have been better"  
Conservatory, Bygone Windows and R9 French Doors -  
Mr & Mrs D'Albert. Ringwood 
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