Noise Reduction and Energy Efficiency
Enjoy peace and quiet in your home thanks to noise reduction capabilities offered by our sliding sash windows. You’ll also benefit from enhanced thermal efficiency which helps reduce heating costs.
Enhance Your Home with Vertical Sliding Sash Windows
At Crown, we offer a variety of vertical sliding sash windows to suit any house type, from modern homes to period properties. Our sliding sash windows provide a timeless design, and are the perfect blend of aesthetics and functionality.
Why Should You Choose Vertical Sliding Sash Windows?
Safety and Security
Our high-quality locking system ensures maximum security for you and your family, while a robust design meets modern safety standards and keeps intruders at bay.
Low Maintenance and Durability
Say goodbye to regular painting or staining – our sliding sash windows are built using premium materials and will last for many years without losing their charm.
UPVC Windows
Best Price Guaranteed
- Excellent thermal efficiency
- Enhanced security
- Highly customisable
Casement Windows
Best Price Guaranteed
- Unobstructed views
- Excellent ventilation
- Enhanced security
Flush Sash Windows
Best Price Guaranteed
- Sleek and modern design
- Customisable options
- Enhanced security
Tilt & Turn Windows
Best Price Guaranteed
- Versatile ventilation
- Easy cleaning
- Energy efficient
Georgian Windows
Best Price Guaranteed
- Thermally efficient
- Enhanced security
- Period aesthetic
Lead Windows
Best Price Guaranteed
- Customisable design
- Suitable for any property
- Expertly crafted
The perfect style options to suit your home
Our range of high performance sliding sash windows offers extensive customisation possibilities including different RAL colour choices such as Irish oak, Anthracite grey, Chartwell green and Golden oak, sizes and additional features such as astragal glazing bars and Georgian bars which add further authenticity if desired.
- Colour Options
- Glass Options
- Brochures
Colour Options
Rosewood
Aluminium Brushed
Chartwell Green
Golden Oak
Irish Oak
Birch
Brilliant Blue
Green
Turner Oak Malt
White Woodgrain
Anthracite Grey Sanded
Dark Green
Oak Concrete
Palisander
Dark Red
Cream
Grey
Anthracite Grey
Grey Sanded
Oak Alpine
Steel Blue
Mahogany
Oak Special
Dark Oak
Oregon
Walnut
Walnut Terra
Agate Grey
Basalt Grey Sanded
Walnut Ameretto
White
Rosewood White
Palisander - White
Oak - White
Glass Options
Autumn
Taffeta
Sycamore
Stippolyte
Minister
Mayflower
Laurel
Florielle
Flemish
Digital
Cotswold
Contour
Charcoal
Chantilly
Brochures
Have Questions About Our Windows, Doors & Conservatories?
Choosing the right windows, doors, and conservatories for your home is an important decision. We’ve answered some of the most common questions to help you understand our products, installation process, and what to expect. If you need more details, our team is always happy to help.
Can't see the answer you're looking for?
Contact UsAre sliding sash windows energy efficient?
Yes! Our vertical sliding sashes are designed with thermal efficiency in mind.
Can I replace my existing wooden sash windows with uPVC ones?
Absolutely! We offer replacement options for traditional timber frames with our new uPVC sash windows.
How long does it take to install new sliding sash windows?
Our lead times are quick and efficient; we aim to get in touch the same day as an enquiry is made and complete installation within two to three weeks.
Do you provide guarantees on your products?
Yes! All our installations come with a 10-year warranty and insurance-backed guarantee as standard.
What sets Crown apart from other suppliers?
At Crown, we pride ourselves on delivering exceptional customer service along every step of the process. With over 20 years of experience in providing premium window services, we have established ourselves as a reputable supplier, while our highly trained team attends regular training sessions to stay up to date with industry trends. Additionally, all our products are protected by a 10-year guarantee, ensuring the highest quality products at all times.
Transform your property
Customise Your Home with Made-to-Measure Sliding Sash Windows
Upgrade your home with made-to-measure windows, doors, and conservatories, designed to fit seamlessly with your property’s style.
- Windows: Whether you prefer classic casement windows or modern sliding sash, our range includes uPVC, flush sash, tilt & turn, Georgian, and lead designs, all crafted for a precise fit.
- Doors: Find the perfect entrance with uPVC, composite, bi-fold, French, patio, and internal doors, offering a combination of security and style.
- Conservatories: Add valuable space with a Victorian, lean-to, gable-end, Edwardian, Georgian, or combination conservatory. For better insulation, our Guardian Tiled Conservatory Roofs provide a stylish and energy-efficient upgrade.
Every product is built to last, ensuring quality, durability, and expert craftsmanship in every installation.
Contact UsDiscover the Latest News from Crown
Read all about the latest home improvement trends to help take your property to the next level.
Flush casement vs stormproof windows: Weather seals, sightlines and cost
3 December 2025
Flush casement vs stormproof windows: weather seals, sightlines and cost Choosing new windows is a...
Part O overheating rules: Glazing, vents and shading for extensions
1 December 2025
Part O overheating rules: glazing, vents and shading for extensions If you’re planning a new...
Building regulations 2026: What Part L changes mean for replacement windows
28 November 2025
Building regulations 2026: what Part L changes mean for replacement windows As we approach 2026,...
Our Accreditations
