Made in the UK
40 Year Heritage
Unique Patented Products
Extensive Warranties
Transform Your Space with Timeless Beauty and Superior Functionality
Elevate your property's charm and value with our exquisite timber sash bay windows, hand-crafted to perfection. Our bespoke designs combine traditional aesthetics with modern performance, creating a stunning focal point for any room.
- Bespoke designs to suit your property's unique character
- Superior energy efficiency for reduced bills and increased comfort
- Enhanced natural light and ventilation for a healthier living space
- Expertly crafted using premium, sustainably sourced materials
- Comprehensive 10-year warranty for peace of mind
Timber Sash Bay Windows Features
What makes our timber sash bay windows unique?
Patented perimeter sealing system
Bespoke Georgian, Victorian & Edwardian designs
Premium timbers, glazing & hardware
Custom fit to your property with care
Local expertise, national coverage
Authentic Period Design
Our timber sash bay windows are meticulously crafted to replicate original period designs, ensuring your property maintains its historic character while benefiting from modern performance. From intricate glazing bars to authentic sash horns, every detail is considered to create a truly authentic look.
Superior Thermal Efficiency
Engineered with advanced glazing options and draft-proofing techniques, our windows significantly reduce heat loss, leading to lower energy bills and a more comfortable living environment. Our double and triple glazing options can achieve U-values as low as 1.2 W/m²K, exceeding current building regulations.
Enhanced Natural Light
The unique projecting design of bay windows increases the glass area, flooding your rooms with natural light and creating a sense of spaciousness. This not only enhances the aesthetic appeal of your interiors but also contributes to improved mood and wellbeing for occupants.
Improved Ventilation
The multiple sash panels in bay windows allow for excellent air circulation, helping to maintain a fresh and healthy indoor atmosphere. Our innovative trickle vents can provide background ventilation even when the windows are closed, reducing the risk of condensation and mould growth.
Bespoke Craftsmanship
Each window is made-to-measure, ensuring a perfect fit and finish that complements your property’s unique architecture. Our skilled craftsmen combine traditional joinery techniques with modern precision machinery to create windows of unparalleled quality and longevity.
Enhanced Security
All our timber sash bay windows are fitted with high-security locking systems as standard, including shoot bolts and key-operated sash locks.
Durability and Longevity
Constructed from premium-grade timber and finished with high-quality treatments, our windows are built to last, requiring minimal maintenance over their lifetime. We use multi-layer paint or stain systems that provide excellent protection against UV radiation, moisture, and fungal attack.
Most Popular Configurations
- Classic Victorian Bay: 3-panel bay with double-glazed sash windows, finished in crisp white paint. Perfect for period properties seeking to maintain authenticity while improving energy efficiency.
- Edwardian Elegance: 5-panel bay with acoustic glazing in Accoya timber, stained to showcase the wood’s natural beauty. Ideal for larger rooms in busy urban environments.
- Georgian Charm: 4-panel bow bay with triple-glazed sash windows in Sapele, painted in heritage colours. Excellent for properties requiring maximum thermal efficiency without compromising on traditional aesthetics.
- Contemporary Twist: Custom-designed bay with minimalist glazing bars, finished with a modern grey exterior and white interior. Suitable for period properties undergoing contemporary renovations.
Don’t want to buy new?: Timber Sash Bay Window Restoration
Keep the charm and improve the performance of your Timber Sash Bay Windows with Ventrolla’s industry-leading renovation services. Why replace when you can restore?
- 40-Year Heritage
- Nationwide Coverage
- Expert Craftsmanship & Patented Products
- Energy-efficient solutions
- Extensive Warranties for Peace of Mind
Our skilled team specialises in restoring timber sash bay windows to full functionality while preserving their historical appeal. Using our advanced Ventrolla Perimeter Sealing System and energy-efficient glazing, we help you enjoy comfort and style for years to come.
Our Process
Consultation
The Ventrolla journey begins with a discussion with a member of our team and/or a detailed home or site design survey, to explore your ideas & devise a bespoke plan of action.
Estimate
Once our team have finalised the plans, we will provide a comprehensive estimate for your works. Enquiry to estimate typically takes between 5 and 10 working days.
Design
Ventrolla fuse traditional skills with modern technology. If you require new joinery, creating your unique product begins in our UK-based manufacturing facility, and takes between 6 and 10 weeks.
Installation
The utmost care is taken to deliver quality products and renovation works that exceed our customers’ expectations. Varying from area to area, Ventrolla lead times depend on how busy we are, and the work required. On average, our installation team will be on site between 6 to 18 weeks from the date your order is placed. We will advise guide installation dates when you place your order.
Aftercare
Our customers come back time and time again – when they move or if they’ve phased their works – all thanks to our exceptional customer service and after care. In the unlikely event that your Ventrolla products require expert attention, we’re always on hand.
Guarantee
Renowned for delivering outstanding quality, all our work comes with a minimum 5-year guarantee (subject to terms), for absolute peace of mind.
Product Options
- Timber Types and Finishes
- Glazing Options
- Window Furniture
- Specifications
Timber Types and Finishes
Window Styles
- Victorian Bay: Classic three-faceted design
- Edwardian Bay: Spacious square or rectangular projection
- Georgian Bay: Elegant multi-paned configuration
- Bow Bay: Graceful curved design
- Custom Bay: Tailored to your specific requirements
Glazing Options
- Single glazing: For listed buildings or strict conservation areas
- Double glazing: Excellent balance of thermal and acoustic performance
- Slim double glazing: Enhanced insulation while maintaining a traditional look
- Triple glazing: Maximum energy efficiency and sound insulation
Window Furniture
Exquisite timber sash window ironmongery hand forged using traditional skills
Compromising on quality simply isn’t an option at Ventrolla, which is why we source our sash window furniture from the very best that the industry has to offer.
Retaining the character of your new sash windows in every aspect, our classic collection of fittings includes quality sash locks, sash lifts, sash stops, D Handles, travel restrictors, tilt knobs, and pole eyes. With a diverse range of finishes, from polished brass sash lifts to antique brass Brighton catches, and chrome plate ring sash eyes to satin nickel sash restrictors, breathing new life back into your heritage home is easy with Ventrolla.
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Specifications
Specs
Colours
Finish
Material
Shape
Length
Width
Height
Warranty Description
CAWS
Timber Bay Sash Windows
Beige, Black, Blue, Bronze
Brown, Copper, Cream, Gold
Green, Clear, Grey, Ivory
Orange, Pink, Purple, Silver, Red
Turquoise, Yellow, White, Other
Painted
Timber
Circle, Crescent, Diamond, Elliptical
Hexagon, Kite, Octagon, Oval
Parallelogram, Pentagon, Rhombus, Rectangle
Square, Trapezium, Trapezoid, Triangle, Other
Bespoke
Bespoke
Bespoke
5 years
L10/10 Wood windows
L10/210 Wood windows
Frequently Asked Questions
How long does installation take?
Typically, a bay window installation takes 2-3 days, depending on the size and complexity of the project. Our experienced teams work efficiently to minimise disruption to your home.
Are your timber sash bay windows suitable for conservation areas?
Yes, our windows are often approved for use in conservation areas and listed buildings. We work closely with local authorities and conservation officers to ensure compliance with regulations while meeting modern performance standards.
What warranty do you offer?
We provide a comprehensive 10-year warranty on all our timber sash bay windows, covering both materials and workmanship. This includes the glazing units, timber components, paint finish, and hardware.
How do I maintain my timber sash bay windows?
Our windows require minimal maintenance. We recommend an annual inspection and clean, along with occasional lubrication of moving parts. A fresh coat of paint or stain may be required every 8-10 years, depending on exposure conditions.
Can you match existing windows in my property?
Absolutely. Our expert craftsmen can replicate any existing window design, including intricate period details. We can also match paint colours and wood stains to ensure a seamless integration with your property’s existing features.
Testimonials
“The timber sash bay windows from this company have completely transformed our Victorian home. The quality is outstanding, and the energy efficiency improvement is remarkable. We’ve noticed a significant reduction in our heating bills, and the house feels so much more comfortable. The installation team was professional and respectful of our property.”
– Sarah Thompson, Cheltenham
“Exceptional craftsmanship and attention to detail. We were initially concerned about replacing the windows in our listed property, but the team guided us through the entire process, liaising with the conservation officer on our behalf. The end result is stunning – authentic-looking windows that perform to modern standards. Highly recommend!”
– James Wilson, Bath
“From the initial consultation to the final installation, the level of service was impeccable. The bespoke design perfectly complements our Edwardian home, and the acoustic glazing has made a huge difference to the noise levels from the busy road outside. Worth every penny!”
– Emily Chen, London
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