Legacy of British Craftsmanship

Over 30 years of experience in precision manufacturing

Our Story

Legacy of British Craftsmanship

Over 30 years of experience in precision manufacturing

Our Story

Vertical Sliding Sash Windows
- Timeless Elegance, Reimagined

What are Vertical Sliding Sash Windows?

Vertical sliding sash windows are a classic style where one or both sashes slide vertically to open and close. Inspired by Georgian and Victorian architecture, they bring period charm into modern homes.

At Klassic Trade Frames, we replicate traditional timber aesthetics while offering smooth operation, low maintenance, and A-rated energy efficiency for lasting performance and style.

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Vertical sliding sash window featuring a white frame and a sleek black window for modern aesthetics.

What are verticle sliding sash windows, Types?

Sash windows offer a range of styles, each with unique
features to suit different homes and preferences.

Single-Hung Sliding Sash

Only the bottom sash moves up and down, while the top sash remains fixed. This simple design offers classic appeal with straightforward functionality.

White double-hung sliding sash window with a matching frame and trim, showcasing a clean and modern design.

Double-Hung Sliding Sash

Both the top and bottom sashes slide vertically, providing enhanced ventilation options and allowing you to easily adjust airflow to suit your comfort throughout the room.

White box sash window with a sleek white frame and clear glass, enhancing the elegance of any interior space.

Box Sash

This traditional style features cords and weights that help the sashes move smoothly up and down, maintaining the authentic period look while ensuring easy operation.

White tilt-only sliding sash window featuring a sleek black handle for modern aesthetics and functionality.

Tilt-Only Sliding Sash

These windows tilt inwards at the top, allowing for easy cleaning and controlled ventilation, seamlessly blending practical convenience with elegant style.

White window with gold trim, showcasing a classic heritage design in traditional sliding sash style.

Heritage or Traditional Sliding Sash

Faithful replicas of original period designs, these windows are ideal for homes in conservation areas or for anyone seeking to preserve true historical accuracy.

Modern white sliding sash window with a sleek frame and trim, enhancing contemporary architectural aesthetics.

Modern Sliding Sash

Featuring streamlined, minimalist frames, these windows are designed for contemporary homes, blending the classic appeal of sash windows with a sleek, updated aesthetic.

Where Sliding Sash Windows Shine

These windows bring character and heritage to projects where architectural integrity matters most:

A large stone wall showcasing the robust architecture of Georgian and Victorian properties, enhancing historical authenticity.

Georgian & Victorian Properties

Restore authentic proportions and details, eliminating drafts and rattles common in old timber sashes.

A building featuring two vertical windows and a white door, exemplifying conservation area aesthetics and energy efficiency.

Conservation Areas

Meet strict planning requirements while enhancing comfort and energy efficiency without compromising heritage aesthetics.

Elegant townhouses with tall windows surrounded by lush green trees, showcasing sophisticated architecture and natural beauty.

Elegant Townhouses & Country Homes

Complement high ceilings and grand facades with a tall, sophisticated window design.

Modern living room with large windows showcasing a stunning bay view, blending elegance with contemporary architecture.

Modern Homes Seeking Character

Add timeless elegance and warmth to contemporary architecture with a classic touch.

A bay window with a table and chairs, creating a cozy dining space with gentle airflow and no harsh drafts.

Kitchens & Living Rooms

Enjoy controllable ventilation with a gentle airflow that avoids harsh drafts.

Classic Charm, Modern Performance

Timeless Style for Period and New-Build Homes

Vertical sliding sash windows bring elegant proportions and traditional character, making them perfect for Georgian, Victorian, and Edwardian properties, or adding heritage appeal to modern homes.

Smooth Sliding, Hassle-Free Operation

Thanks to advanced balances and hardware, our sash windows open and close effortlessly while maintaining that classic look.

Energy-Efficiency Without Compromise

Choose from double or triple glazing options that reduce heat loss, eliminate draughts, and help lower your energy bills, all while preserving a heritage aesthetic.

Low-Maintenance, High Durability

Unlike original timber sashes, our modern sash windows resist warping, swelling, and rot, with options that replicate the traditional appearance beautifully.

Authentic Details with Modern Security

From run-through horns to deep bottom rails, our designs retain authentic styling while incorporating modern locking systems and secure glazing.

Choose Your Frame:
Heritage Looks, Modern Materials

Whether you’re restoring a period property or updating a traditional home, our vertical sliding sash windows are available in a range of frame materials to suit every style and performance need. Each option blends classic design with modern benefits, ensuring you don’t have to compromise on charm, comfort, or efficiency.

White uPVC window frame with a clear window, showcasing modern design and energy efficiency for contemporary homes.

uPVC

Affordable option: features

  • Excellent thermal performance affordable option that still delivers strong insulation.
  • Virtually maintenance-free easy to clean and retains its look with minimal effort.
  • Authentic heritage features includes sash horns and woodgrain finishes for period charm.
  • Smooth glide opening system engineered for reliable long-term use and ease of operation.
  • Ideal for homeowners who want heritage style without the upkeep.
3D rendering of an aluminium window featuring a clear glass pane, showcasing modern design and sleek aesthetics.

Aluminium

uPVC

  • Affordable with excellent thermal performance Delivers strong insulation while remaining cost-effective.
  • Virtually maintenance-free Easy to clean and keeps its look with minimal upkeep.
  • Authentic heritage features Includes sash horns and realistic woodgrain finishes.
  • Smooth glide opening system Engineered for reliable long-term operation.
  • Ideal for heritage styling without the upkeep Perfect for homeowners who want period looks with low maintenance.
Bright living room featuring double glazed windows and doors, enhancing natural light and energy efficiency.

Bespoke Vertical Sliding Sash — Heritage Design, Tailored for You

Every Klassic sash window is custom-made to your specifications. We'll help you choose from traditional hardware like sash lifts and locks, authentic sash horns, and a broad palette of heritage colours and finishes. Your new windows will be a flawless addition to your home, backed by our comprehensive guarantee for lasting beauty and peace of mind.

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Reputation You Can Rely On

Hear from our satisfied clients about their experiences with us. Our testimonials
showcase the trust and reliability we've built over the years.

Our new lantern light and double doors to the garden were wonderfully designed and installed by Traditional Conservatories.

Paul Mayers

5 Star Reviews

A large sliding glass door opens to a bright kitchen and dining area, enhancing the space with natural light and openness.
Modern sliding glass door with sleek metallic frame by trusted window and door suppliers, connecting indoor space to garden patio.
Cosy bedroom featuring a white bed and a balcony, perfect for relaxation and enjoying fresh air.

These guys have done several things for us recently, replacement glazing and a screen for the conservatory, as well as the replacement of windows.

Andrew

5 Star Reviews
Architectural window design with six glass panes and skylight, offering natural light and outdoor views of greenery and a wooden fence.
Newly built conservatory with large glass panels and dark roof, showcasing ongoing interior work with visible construction materials.

I’ve just picked up a new door. Excellent quality and a great price, but more importantly, the team there provide a premier service. They go the extra mile to help you find what you are looking for and give you all the support you need.

Simon

5 Star Reviews
Modern dark grey front door with silver handle, set in a brick wall and marked with number 8, complemented by a nearby potted plant.
Contemporary dark grey front door with metallic accents and vertical handle, framed by potted plants and a wall-mounted security feature.
Blue front door with decorative panels and top window, set against white panelled wall with nearby hooks and a partially visible bench.

I’ve just had a large bay and side window replaced, and I have to say the artistry is excellent!

Kristy

5 Star Reviews
Charming dining nook with wooden table and white chairs, set by a bay window offering views of red-roofed houses and natural light.
Minimalist room with white walls and wooden flooring, featuring a large three-pane window and twin radiators beneath for a bright, versatile space.
Urban window view with cactus on sill, overlooking green lawn, parked bicycles, and red-brick apartment building framed by trees.

Speak With One of Our Experts Today

Speak with one of our long standing Klassic Trade Frame experts to bring your vision to life within minutes.

Request a Quote

Explore design, material, and colour options

Discuss measurements for your windows and/or doors

Walk you through the installation process

Provide an honest and clear quote for your project

Cosy bedroom featuring a white bed and a balcony, perfect for relaxation and enjoying fresh air.

Speak With One of Our Experts Today

Speak with one of our long standing Klassic Experts to bring your vision to life within minutes.

Explore design, material, and colour options

Discuss measurements for your windows and/or doors

Walk you through the installation process

Provide an honest and clear quote for your project

Reputation You Can Rely On

Hear from our satisfied clients about their experiences with us. Our testimonials showcase the trust and reliability we've built over the years.

See Our Work

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Company Details

0121 713 0050

Klassic Trade Frames (UK) Ltd 
Unit 2, Seeley’s Park Industrial Estate Seeley’s Road, Tyseley Birmingham, B11 2LR

© 2025 Klassic Trade Frames. All rights reserved.

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© 2025 Klassic Trade Frames. All rights reserved.

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