Located near Hexham and covering Northumberland, the North Pennines & Newcastle upon Tyne, Heritage Sash Solutions can help you restore the timeless charm of your property with its full suite of sash window repair, sash window renovation, sash window restoration & thermal upgrade services.

Complimenting regular repairs, refurbishments and draught-proofing upgrades to get your windows working with fingertip ease, free of draughts & rattles, we specialise in returning a box sash to its original elegance & splendour by giving your window all the care it needs.

During refurbishment works we’re able to strip, sand & repaint the sashes and have carefully developed techniques to replace any mouth-blown cylinder glass which may have cracked or been lost over time, whilst delicately preserving what remains. This reinstates the original cylinder (‘wavy’) look to the entire window which has proven highly popular with listed properties owners & conservation officers alike. The impact of such investment is simply stunning.

Whether you’ve antique glass or not, having your sash windows fixed or draught-proofed (rather than replaced) is almost always the right thing to do and painting the sashes & their box whilst they’re out for repairs or upgrades also makes great sense. Since every need is taken care of you’ll not need a painter to follow in behind and your sash windows will serve you & your family well for a very long time to come. It’s a single service ‘one-stop-shop’ approach.

As a Listed Property Owners Club (LPOC) supplier we’re dedicated to preserving architectural legacies using the right materials, techniques & craftsmanship whilst lowering heat loss & raising thermal efficiency.

Move slider bars to reveal ‘before & afters’ of our work and continue down for customer reviews, a list of services & how to get in touch …..

Our work

Recent reviews

“Our antique sash windows have been given a new lease of life by Giles, who has also managed to retain all their original glass, charm and character. We feel a lot of pressure living in an old listed building to “get it right” and have no hesitation at all in asking Giles to take charge of repairing and refurbishing the windows, knowing how carefully and sympathetically he treats them. We look forward to seeing much more of Giles over the next few years as we gradually work our way round each of the rooms! “

Flo Maxwell, Ryton, Gateshead, December 2025

“Giles has done an excellent job breathing life back into two large feature sash windows. They have been beautifully restored and work perfectly. Giles clearly really cares about what he does and it shows in the results of his work. I would recommend him to anyone who loves heritage windows. “

Guy Brain, Sydney Grove, Newcastle, August 2025

“Giles work is meticulous in the extreme. We have a number of sash windows in the Victorian extension of our grade 2, several of which in a sorry state. Giles repaired them seamlessly. They now run beautifully and, what’s even better, they don’t let drafts in. With one of the windows he also reinstated the original glass. Giles explains everything which is both interesting and reassuring . We have no hesitation in highly recommending him.”

Liz McQuillen, Hotspur House, Allendale, June 2025

“Giles has sympathetically restored two of our antique sash windows superbly. The knowledge he has of his craft is exceptional, as is his attention to detail. We have no hesitations in recommending him to others and we will undoubtedly be returning to him with more work in the future. “

Warren Maxwell, Ryton Village, May 2025

“Our bedroom sash windows had been glued, nailed and painted shut for 20+ years. Giles managed to find and install a large beautiful replacement piece of cylinder glass and got all the windows moving again, painted, balanced and draught-proofed. Our windows are now the envy of the street and we’ll be getting him back to do the downstairs ones soon. He took enormous care on the job and was excellent value, would highly recommend.”

Hunter Charlton, Sydney Grove, Newcastle, March 2025

“Excellent advice, superb workmanship and outstanding results, we could not be happier. Thank you!”

Allan Morrison, Belmont, January 2025

“The large ‘feature’ sash overlooking the garden from our kitchen was painted shut, its sill had rotted and much of the original historic glass had sadly been lost, replaced by modern panes. Giles lovingly restored our window. Skilfully managing to save 6 original panes and sourcing 10 others of matching ‘cylinder’ glass to reinstate it throughout. You can’t even tell now and we couldn’t be happier, it’s brought new life to our living space and aligns to the careful restoration of our listed property.”

Susie Pool, Hexham, May 2024

“Entrusting the heritage sash windows in our Grade II home to Giles was one of the best decisions we’ve made. His meticulous restoration work breathed new life into our cherished windows, preserving their historical charm while enhancing their functionality. We couldn’t be more thrilled with the amazing results he delivered.”

Professor Conroy Dalton, Hexham, March 2024

“We are delighted with the restoration of our dormer sash window which was in a sorry state when Giles arrived. His care, attention to detail and craftsmanship brought it back from the brink. We now have a lovely original sash window in beautiful condition, we’re so happy with the result.”

Lesley Marshall, Graham Park Rd, Gosforth, December 2023

“We benefitted greatly from Giles’ advice and work when we decided to invest in secondary glazing (Extraglaze) in our Grade 2 listed Victorian semi. His preparations on the windows, laser work and measuring were meticulous and his work was thorough throughout the process. We have had great benefit in terms of warmth and sound reduction”.

Chris Davey, Galgate, Barnard Castle, November 2023

“We’re based in a listed building and needed a very large heritage window restoring which had been painted shut, was very difficult to access and had lost its vintage hardware. Giles reinstated our window reviving its original features. He was professional, friendly, efficient and completely transparent about all the work needed. It’s the only time we have had work done to a fantastic standard, and for a very fair price. 100% recommend.”

Louise Snape, Director, Hand Of Children’s Charity, Newcastle Quayside, August 2023

List of services

Heritage Sash Solutions based in Allendale in Northumberland, proudly provides a broad suite of solutions for original box sash windows : adding brush systems for draught-proofing • glass & putty replacement • pulley upgrades & re-cording • window weight rebalancing • sepele sill replacement • scarfing accoya repairs • reinstating mouth-blown cylinder glass • complete paint finishing service (inside & out) • retrofitting vacuum insulated glass (VIG) into original sashes • adding elegant & efficient magnetic secondary glazing (Extraglaze) to lower Ug values