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Sash window double glazing in North Wales and surrounding areas

We specialise in double glazing and draught proofing your existing sash windows in North Wales .

In Edwardian construction one of the key features is the traditional sliding Sash and with North Wales having such a wonderful heritage there are many homes that have these beautiful features and at Kensington Sash windows we are experts in double glazing and draught proofing your existing sash windows ensuring that you can retain these wonderful sash windows.

Many homes that have traditional sliding sash windows can also have heritage or listed building status which may mean there are restrictions on replacement of these windows, at Kensington sash windows we can offer many solutions instead of replacement and can work with your local planning office to get a result that will satisfy both yourself and the criteria required.

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Period wooden windows are extremely durable and made to last the test of time, they are mainly constructed from pitch pine a type of redwood that is not readily available today for the mass market, the timber itself is tight-grained and full of natural tree resin, a large amount of natural resin helps stop water penetration in the sections of wooden windows and really delaying any onset of timber decay and fungal attack, this is why period sash windows can go several centuries without any remedial work being carried out unlike modern wooden sash windows that will start to decay anywhere from eight years onward depending on the materials used in their construction.

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It is highly recommended to retain the original period windows of your property, as they possess superior quality compared to any replacements that may be considered. Furthermore, once restored, they are capable of lasting for many more years while preserving the authentic character of your period property.

How to refurbish your wooden windows

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We restore period wooden sash windows by various methods depending on the situation but the majority of the time it is by removing the rotten window sections and replacing them with new hardwood sections, machined on site to perfectly match the original profiles and bonding them on with a specialist two part epoxy resin system.

sash windows

This makes a permanent and durable bond that will expand and contract in conjunction with the original wooden sash window timber.

Sill repairs

Here you can see the rotten sill and box sections taken out replaced with new hard wood sections and left primed ready for painting.

Sill repairs Sill repaired sash windows rot repairs

Kensingtons we offer a full restoration service ensuring all parts of your sash window are covered, from cords and pulleys to beads, boxes and catches even a single pane of glass can be replaced if cracked and this is often what your local planning would prefer.


If you would like to see what some of our previous customers have to say about us.

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Areas We Cover

Altrincham, Bebbington, Birkenhead, Bromborough, Cheadle Hulme, Cheshire, Chester, Church Stretton, Denbighshire, Denbigh, Ellesmere Port, Flintshire, Helsby, Holmes Chapel, Knowsley, Knutsford, Liverpool, Llandudno, Lymm, Nantwich, Northwich, Oswestry, Prenton, Prescot, Rainhill, Rhyl, Runcorn, Sale, Shawbury, Tattenhall, Wallasey, North Wales, Warrington, Weaverham, West Kirby, Whitchurch, Widnes, Winsford, Wrexham.

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