Accoya® Timber Sliding Sash Window Restoration
Accoya Timber Frames – Beauty That Lasts for Generations
Restore the Beauty and Performance of Your Original Sash Windows
Bring your sash windows back to life with our specialist Accoya® timber restoration service. At Shire Windows Solutions, we repair, restore, and enhance traditional timber windows to their former glory — improving efficiency, reducing draughts, and preserving your home’s authentic charm.
Whether you own a period property, listed building, or a home in a conservation area, our expert team delivers seamless, long-lasting results that blend craftsmanship with modern performance.
Why Choose Accoya® Timber?
Accoya® is the gold standard for sustainable, long-lasting timber. It’s specially treated for exceptional durability, dimensional stability, and resistance to rot — making it perfect for sash window restoration.
Benefits of Accoya®:
Outstanding durability – 50-year above-ground warranty.
Minimal movement – no swelling, sticking, or warping.
Eco-friendly and sustainable – FSC® certified timber.
Ideal for coatings – paint lasts longer, reducing maintenance.
Using Accoya® ensures your restored windows stay smooth-running and beautiful for decades.
Our Sash Window Restoration Service
We don’t believe in replacing what can be repaired. Our skilled craftsmen restore your existing windows using traditional joinery methods combined with the latest materials and technology.
Our services include:
Full or partial sash window restoration
Replacement of decayed timber with Accoya® splices
Sash re-cording and weight balancing
Draught-proofing and weather sealing
Re-glazing and putty renewal
Slimline double glazing (where permitted)
Expert preparation and hand-finished painting
The result? Smooth-sliding, energy-efficient sash windows that retain the period look and character of your property.
Perfect for Listed & Period Properties
We’re experts in restoring sash windows for listed buildings and conservation areas. Our sympathetic approach ensures your windows meet heritage standards while subtly improving performance and comfort.
We can help with:
Heritage-grade materials and glass
Traditional putty glazing and moulding profiles
Supporting listed building consent applications
Like-for-like repairs that preserve original detail
Our careful craftsmanship means you’ll enjoy all the charm of your original windows — without the draughts or sticking sashes.
Our 6-Step Restoration Process
- Free Survey – We assess the condition of your windows and provide a fixed written quotation.
- Removal & Inspection – Sashes are removed with care, and all components are checked.
- Timber Repairs – Damaged areas are cut out and replaced with new Accoya® sections.
- Overhaul – New cords, serviced pulleys, and balanced weights for smooth operation.
- Finishing Touches – Draught-proofing, glazing repairs, and hand-applied coatings.
- Reinstallation & Sign-Off – We reinstall and test every window for perfect movement and sealing.
Common Problems We Fix
Sticking or dropped sashes
Rattling and noise
Rotten cills or frames
Broken sash cords or pulleys
Draughts and poor sealing
Cracked or misted panes
If your windows suffer from any of the above, our restoration service can return them to full working order — without the cost or disruption of full replacement.
Why Choose Shire Windows Solutions?
Specialists in Accoya® timber sash window restoration
Expert joiners and heritage-trained craftsmen
Free surveys and fixed, transparent quotes
Local, trusted, and highly rated team
Long-lasting materials and premium finishes
We take pride in delivering traditional workmanship with a modern, reliable service. Every project is handled with care, precision, and respect for your property.
Windows in Every Style – Made for Your Home
We manufacture and install a wide range of bespoke windows in Gloucestershire, combining the beauty of timber with the benefits of modern glazing.
Book Your Sash Window Survey
Restore your original sash windows and enjoy the comfort, efficiency, and beauty they were designed for.
Sash Windows in Bristol & Bath
Our sash windows in Bristol and Bath are the ideal choice for heritage and period properties, offering the perfect blend of authentic style and modern insulation. Designed to replicate the classic elegance of traditional timber sash windows.
Double Glazing Windows Dursley
Double glazing windows in Gloucestershire are designed to improve comfort, reduce outside noise, and lower energy bills. With superior insulation and modern glass technology, our double-glazed windows keep your home warm in winter, cool in summer.
UPVC Windows Stroud
Our UPVC windows in Gloucestershire are a low-maintenance and cost-effective solution for homeowners who want lasting performance. Available in a wide range of colours, styles, and finishes, these windows combine excellent energy efficiency with durability.
Aluminium Windows Gloucestershire
Choose aluminium windows in Gloucestershire for a sleek, modern look with slim frames, excellent thermal efficiency, and outstanding durability. Perfect for both contemporary and traditional homes, aluminium windows.
Why Choose Accoya Timber for Your Windows?
Timeless Beauty, Modern Performance, Lasting Strength
Timeless Beauty
Accoya timber combines the natural charm of real wood with advanced treatment technology, ensuring your windows look stunning and stay true to your property’s character.
Built to Last
Engineered for strength and stability, Accoya resists warping, shrinking, and swelling—delivering unmatched durability for decades to come.
Energy & Weather Performance
Our Accoya timber windows exceed modern energy efficiency and weatherproofing standards, keeping your home warm, quiet, and protected all year round.
Sustainable Choice
Accoya is sourced from FSC®-certified forests and is fully recyclable, making it one of the most eco-friendly timber options available today.
We are more than happy to give you recommendations when it comes to the face of your home, as it is vital your installation looks as good as ever. Discover how Shire Window Solutions can elevate your home’s comfort and curb appeal.
Accoya® – The Smart, Sustainable Choice for Window Restoration
With the natural beauty of real timber and the reliability of modern technology, Accoya® ensures your windows are built to last — for generations to come.
FAQs
What makes Accoya timber different from other wood?
Accoya timber is created through a patented process called acetylation, which changes the wood at a molecular level. This makes it exceptionally stable, resistant to rot, and far more durable than traditional hardwoods or softwoods—while still offering the beauty of natural timber.
How long will Accoya windows and doors last?
Accoya timber frames have an unrivalled lifespan of up to 50 years above ground and 25 years in ground or freshwater. This makes them one of the longest-lasting timber options available, perfect for homeowners in Gloucestershire, Bristol, and Bath looking for a long-term investment.
Is Accoya suitable for double glazing?
Yes. Accoya works perfectly with double glazing windows and double glazed doors, offering excellent thermal insulation and helping reduce energy bills while keeping your home comfortable all year round.
Will my Accoya windows or doors warp over time?
No. One of Accoya’s biggest advantages is its dimensional stability. Unlike many other timbers, it has minimal swelling or shrinking, meaning your windows and doors will open and close smoothly in all weather conditions.