Homeowner Trade
Cream flush casement windows on a two-storey home, featuring clean lines and a traditional design. The windows are symmetrically placed on the upper level of a white-rendered house with a dark-framed roof gable.
White uPVC window with leaded glass, installed in a bright interior space, offering a heritage-style appearance with modern insulation.
Grey flush casement bay window in uPVC, installed in a brick and stone property, offering a combination of traditional style and modern efficiency.
Flush casement window
Chartwell Green flush casement uPVC windows installed in a modern home, providing a heritage-style appearance with modern benefits.
View of entrance door
house with timberlook windows installed
red brick house installed with timberlook windows
85mm Stubb
180mm
Radlington 165mm
black woodgrain window

Market-leading windows

uPVC Cottage Windows: Traditional Design Meets Modern Performance

Transform your period home with stunning uPVC cottage windows that seamlessly blend timeless heritage aesthetics with cutting-edge thermal efficiency. Timberlook’s cottage windows deliver the authentic charm of traditional period architecture without compromising on security, durability, or energy performance.

Browse the gallery

Exceptional features of our Timberlook Cottage Windows

Patented Timberweld Technology

Certified to PAS24 Specifications

Concealed Trickle Vents for An Elegant Look

U-values as low as 1.2W/m2K

What Should You Know About Casement Windows?

This FAQ section addresses key questions about casement windows, offering insights into their design, benefits, and how they differ from other window types. Whether you're considering a home improvement or simply curious, this section provides valuable information to help you make an informed decision.

Contact Us for a Free Quote Today

What are uPVC cottage windows?

uPVC cottage windows are modern, energy-efficient windows designed to replicate the look of traditional multi-pane timber windows. They use decorative glazing bars (Georgian or astragal bars) to recreate classic cottage styling, while the uPVC frames and advanced glazing deliver improved insulation, security and low maintenance.

What is the difference between Georgian bars and astragal bars?

Georgian bars sit between the panes of glass inside the sealed unit, creating a more streamlined appearance and making the glass easier to clean. Astragal bars are applied to the surface of the glass, inside and out, giving a more pronounced, three-dimensional effect that closely mimics original period windows. Both styles can be used to achieve a traditional cottage look.

Are Timberlook cottage windows suitable for period or conservation properties?

Yes. Timberlook cottage windows are specifically developed to complement period homes, cottages and heritage-style properties. The slim sightlines, traditional proportions and glazing bar options help maintain the character of older buildings, while our heritage specialists can advise on designs that are appropriate for conservation areas and listed buildings.

How energy efficient are Timberlook cottage windows?

Timberlook cottage windows are engineered for strong thermal performance, with BFRC A-rated options available. The combination of insulated uPVC frames and modern double or triple glazing helps reduce heat loss compared to traditional single-glazed timber windows, supporting a more comfortable, energy-efficient home.

Can I choose different colours and finishes?

Yes. Timberlook offers a wide range of heritage-inspired colours and realistic woodgrain finishes, including popular options such as Chartwell Green, Anthracite Grey, Cream and classic timber tones. Dual-colour frames are also available, allowing you to select one finish for the exterior and another for the interior.

Traditional casement windows styles

Bespoke options to complement your home

At Timberlook, we can design traditional casement windows to suit the style of any home. Choose additional decorative features like astragal bars and monkey tail handles to further enhance your new Timberlook windows.

Artistic sketch of a flush sash window set in a textured wall, featuring fine lines and shading to emphasize the window's traditional and elegant design.

Montague Collection

Discover the Montague Collection: exquisite windows that seamlessly blend elegance, durability, and energy efficiency for every home.

Sketch of window

Chesterfield Collection

Enhance your home with our versatile Chesterfield Collection. Designed to improve your home's performance, this collection is truly outstanding.

Sketch of bay windows

Darlington Collection

Transform your home with the Darlington Collection: a curated range of windows that combine style, performance, and lasting quality effortlessly.

Close up view of white flush window seam

Timberweld tech

Innovative technology, modern design

Our Timberlook traditional casement windows are completely sealed using patented Timberweld technology. The Timberweld concept is a method of construction which balances the aesthetics of traditional timber butt joints with the efficiencies and accuracy from modern welding and the latest technology in our production processes. Using the Timberweld method to join the frame at each corner, we create frames that are completely sealed at the edges. With Timberweld technology, you get a quality finish that will transform the look of your windows.

black woodgrain window

What Are Cottage Windows?

Cottage style windows feature decorative glazing bars—known as astragal bars or Georgian bars—that create the elegant appearance of traditional multi-pane windows. Rather than multiple individual glass panes that demand constant maintenance, modern uPVC cottage windows use strategically placed bars to replicate that classic look whilst delivering the superior insulation of contemporary double or triple glazing.

This design approach is ideal for period properties, Victorian cottages, Georgian homes, and listed buildings across the UK, allowing homeowners to preserve architectural character whilst enjoying modern comfort and convenience.

Contact Us

Types of Cottage Windows Available

Casement cottage windows open outward with side hinges, offering flexible ventilation control and exceptional ease of operation. Each opening section can be configured to suit your layout, providing complete control over airflow throughout your home.

Sash cottage windows feature the traditional vertical sliding operation that defines genuine period character. Perfect for Victorian and Georgian properties, modern uPVC sash windows faithfully replicate original designs whilst delivering stronger thermal performance and far lower maintenance requirements than timber alternatives.

Flush casement options provide streamlined aesthetics that sit flush with external walls, creating refined profiles that work beautifully with both traditional cottages and more contemporary heritage-inspired homes. Carefully positioned glazing bars maintain the authentic look of classic cottage windows.

Light grey uPVC Flash sash windows installed on a cottage
Traditional stone cottage with white uPVC windows, surrounded by a summer garden with lavender and wildflowers.

Design Features and Customisation

Georgian vs. Astragal Bars

Understanding the difference between Georgian bars and astragal bars helps you achieve the right look for your property. Georgian bars sit between the glass panes for a simpler, easy-clean finish, while astragal bars are applied to the surface of the glass to create a more traditional, three-dimensional effect. Both successfully recreate cottage charm; the choice depends on how authentic and detailed you want the design to appear.

Heritage Colour Palette

Move beyond standard white with Timberlook’s heritage-inspired colours, including Chartwell Green, Anthracite Grey, Cream White and realistic woodgrain finishes such as Golden Oak and Rosewood. Dual-colour options allow different interior and exterior finishes, so you can coordinate with both your façade and interior décor.

Energy Efficiency and Performance

Timberlook cottage windows are engineered for strong thermal performance, with BFRC A-rated options available for homeowners looking to improve efficiency. Modern double-glazed units help reduce heat loss compared to single-glazed originals, maintaining the character of your home while supporting more comfortable indoor temperatures. Triple glazing can be specified for additional insulation and improved noise reduction where required.

Security and Durability

Timberlook cottage windows feature modern multi-point locking systems, toughened glass and robust frames to enhance security compared to traditional window designs. Low-maintenance uPVC profiles resist weathering, rot and peeling paint, providing long-lasting performance without the upkeep associated with timber frames.

Why Choose Timberlook for Your Heritage Home?

Made in the UK by skilled craftspeople, Timberlook combines traditional window design expertise with modern engineering. Our heritage specialists understand conservation area requirements and listed building regulations, helping you meet local authority guidelines and maintain the character of your home.

The 10-year guarantee, together with BBA accreditation and FENSA registration, provides clear, independent reassurance of product quality and professional installation standards. Our nationwide installer network ensures your Timberlook cottage windows are fitted by experienced specialists to maintain performance and appearance for years to come.

Coastal cottage with white Heritage uPVC windows, overlooking the ocean and surrounded by summer flowers.
Close-up of a concealed trickle vent on a wood effect uPVC window, blending modern ventilation with traditional aesthetics.

Concealed trickle vents

Concealed ventilation solutions for your home

You don't have to spoil the appearance of your new windows with unsightly trickle vents anymore. At Timberlook, we have come up with a solution - a head drip that can be attached to the Timberlook outer frame, concealing any external vent canopy. Our concealed trickle vents are designed with both aesthetics and functionality in mind, offering improved air quality while maintaining the sleek look of your windows.

  • Colours
  • Cills
  • Hardware
  • Colours

    Elegant colour options to enhance your home

    Our Timberlook windows are available in a range of standard colours, woodgrain foils and dual-colour options. With so many options available, you are bound to find the perfect fit for your home.

    White

    Timberlook

    White

    Polar White

    Timberlook

    Polar White

    Cream Foil

    Timberlook

    Cream Foil

    Irish Oak

    Timberlook

    Irish Oak

    Golden Oak

    Timberlook

    Golden Oak

    Rosewood

    Timberlook

    Rosewood

    Chartwell Green

    Timberlook

    Chartwell Green

    Painswick

    Timberlook

    Painswick

    Pebble Grey

    Timberlook

    Pebble Grey

    Anthracite

    Timberlook

    Anthracite(Woodgrain)

    Anthracite

    Timberlook

    Anthracite(Smooth)

    Black Foil

    Timberlook

    Black Foil

    New for 2026

    Timberlook

    Cills

    Choosing the right cill for your Timberlook windows

    We offer a choice of cill options to enhance your traditional casement windows. Choose between the contemporary shallow cill that comes as standard or the Radlington Cill which has been designed to add a sophisticated charm to any property.

    85mm Stubb Cills

    These small but strong cills are often used for properties with stone cills, having been crafted to ensure that moisture is directed away from the frames, removing the risk of water ingress.

    150mm Cills

    As the industry’s ‘standard’, these cills protrude 80mm from the front of the frame. They offer long lasting protection, are virtually maintenance free, and come in a choice of colours.

    180mm Cills

    The 180mm cill is the largest cill we offer, protruding 110mm from the front of the frame. You’ll often find these cills in properties with frames that are recessed in the brickwork.

    Radlington 165mm

    Cills are usually 30mm deep, but to accurately emulate traditional looking frames, the Radlington cill is slightly thicker at 55mm deep, protruding 95mm from the face of the frame.

    Hardware

    Quality hardware to compliment your home

    As standard, our traditional casement windows are equipped with contemporary handles. However, you can customise them even further with our Premium Regency furniture. You have the option to choose from Peardrop and monkey-tail handles to give your windows a unique touch.

    Standard Handles

    Our sleek window handles fit perfectly with Timberlook windows and won’t interrupt views. They are available in a wide range of colours to perfectly match our windows, and offer smooth and comfortable operation.

    Monkey Tail

    Inject distinctive character and timeless elegance into Timberlook windows with monkey tail handles. These elegant and durable handles add a touch of vintage charm while providing reliable functionality.

    Pear Drop

    Transform the look of Timberlook windows with classic and ornate pear drop handles. These handles combine timeless aesthetics with practicality, enhancing the beauty and functionality of our flush casement windows.

    Peg/ Dummy Stays

    Decorative and functional peg/dummy stays not only add a touch of charm to our Timberlook flush casement windows, but also provide sturdy support, improving the overall window experience.

    Find an Installer

    Looking for a professional Timberlook installer in your local area?

    At Timberlook, we have years of experience connecting homeowners nationwide with quality installers who provide competitive pricing and exceptional customer service.. Get in touch to get connected with your nearest professional Timberlook installer!

    What our customers say

    Take a look at some amazing feedback from our customers. We’re proud to deliver exceptional service that exceeds customer expectations and leaves them delighted with their homes.

    Quality windows that have changed the look of my house completely, reasonably priced, really felt looked after. Ryan is marvellous!!!

    Adrian Barliga

    A great measure of any business is its aftersale service. The doors were great quality and the aftersales service outstanding. Thankyou to Ryan very helpful

    S

    What a pleasure to deal with, an excellent 5 star service as always

    Russell Dyer