Homeowner Trade
Heritage flush sash uPVC windows installed in a traditional cottage, replicating classic timber aesthetics.

The Timber Alternative

Heritage Flush Sash Windows

Timberlook flush sash windows combine traditional aesthetics with modern performance. Designed to suit historic buildings and contemporary homes, these uPVC timber alternative windows provide key advantages over timber frames, including improved insulation, security, and durability.

Thanks to their flush design, the sash sits level with the frame, reducing draughts and heat loss. Paired with double or triple glazing, these windows help maintain comfortable indoor temperatures and lower energy costs. The uPVC construction resists rotting and warping, requiring minimal maintenance over time.

Available in colours such as anthracite grey and light oak, Timberlook flush sash windows complement a range of property styles. Their equal sightlines allow for balanced aesthetics and maximise natural light. Approved for conservation areas, they replicate traditional timber frames while offering modern benefits, making them an ideal choice for both heritage and newbuild properties.

Flush Sash Windows

Heritage Style uPVC Windows

Flush Casement Windows

Our flush casement windows combine traditional design with modern performance. Suitable for both period and contemporary homes, they offer the look of timber with the durability and efficiency of uPVC.

The flush design creates a clean, symmetrical appearance with equal sightlines, making them suitable for both classic and modern properties. Available in a range of colours and woodgrain finishes, these windows can be customised to suit different styles.

Designed for efficiency, flush casement windows provide excellent thermal insulation, reducing heat loss and helping to lower energy costs. The multi-point locking system and tight seals improve security, while durable uPVC construction prevents draughts and water ingress.

With slim frames, these windows allow more natural light into your home while maintaining clear, unobstructed outdoor views. Resistant to warping and requiring minimal maintenance, they offer a long-lasting, practical solution for homeowners seeking style and performance in one.

Flush Casement Windows
Grey flush casement uPVC windows with heritage-style glazing bars, installed in a traditional stone property.
A close-up view of four Irish Oak effect flush sash windows installed in a brick wall, featuring a warm wood-like finish and sleek design, reflecting outdoor surroundings.

Timeless Beauty Meets Modern Performance

Heritage uPVC Windows

Our Heritage uPVC Windows combine the charm of traditional timber with modern performance. Designed as a like-for-like replacement for wooden windows, they maintain the character of period properties while offering energy efficiency, security, and durability.

With authentic proportions and wood-effect finishes, these windows replicate the appearance of timber without the upkeep. The uPVC construction resists warping, rotting, and cracking, ensuring long-term reliability with minimal maintenance.

Heritage uPVC windows provide excellent insulation, helping to reduce heat loss and lower energy bills. Their multi-point locking systems and robust frames offer added security, while thermal efficiency keeps homes comfortable year-round.

Designed to suit conservation areas and heritage properties, these windows retain classic aesthetics while delivering the benefits of modern materials. A practical and stylish solution for homeowners seeking performance without compromising on tradition.

Heritage uPVC Windows

Expand Your View, Amplify Your Style

Bay and Bow Windows

Timberlook bay and bow windows create a striking focal point while increasing natural light and interior space. Designed as a timber alternative, these windows combine traditional aesthetics with modern performance.

The outward projection of bay and bow windows allows for a wider field of view, connecting your home with the outdoors. Their design increases natural light, making interiors feel brighter and more open. The additional space they create can be used for a seating area or extra storage, adding both function and style.

Beyond aesthetics, these windows offer practical benefits. Their energy-efficient construction reduces heat loss, while high-quality uPVC ensures durability with minimal maintenance. Multi-point locking systems provide added security, and improved ventilation allows for better airflow throughout your home.

Suitable for both period and contemporary properties, Timberlook bay and bow windows improve curb appeal while offering a practical and stylish way to increase space and light.

Bay and Bow Windows
Black flush casement uPVC bay windows installed in a red brick property, offering a traditional style with modern efficiency.
White uPVC window with leaded glass, installed in a bright interior space, offering a heritage-style appearance with modern insulation.

Classic Charm Meets Modern Innovation

uPVC Windows

Upgrade your home with Timberlook uPVC windows, combining traditional aesthetics with modern performance. These high-quality timber alternative windows improve energy efficiency, security, and durability while requiring minimal maintenance.

Built to withstand harsh weather, uPVC windows resist cracking, warping, and fading, ensuring long-term reliability. Unlike timber, they do not require painting or staining, making upkeep simple and cost-effective.

With excellent insulation, these windows help reduce heat loss, lower energy bills, and prevent condensation build-up. Their multi-point locking systems provide increased security, creating a strong barrier against intruders. The combination of uPVC frames and double glazing also reduces external noise, creating a quieter indoor environment.

Available in various styles and finishes, Timberlook uPVC windows suit both period properties and modern homes. A practical and sustainable choice, they offer lasting performance without compromising on style.

uPVC Windows

Exceptional features of our Timberlook windows

U-values as low as 1.2W/m2K

Patented Timberweld Technology

Certified to PAS24 Specifications

What Are the Key Features of Timberlook’s Wood Effect uPVC Windows?

Welcome to our FAQ section about Timberlook's wood effect uPVC windows. Here, we answer some of the most commonly asked questions to help you better understand the unique blend of traditional aesthetics and modern performance that our windows offer. Discover how Timberlook windows can enhance both historic and contemporary properties.

Contact Us

What makes Timberlook's wood effect uPVC windows suitable for conservation areas?

Timberlook's wood effect uPVC windows are approved for conservation areas because they mimic traditional timber aesthetics while offering modern benefits like increased energy efficiency, security, and low maintenance, making them perfect for preserving the heritage of historic properties.

How does Timberweld technology benefit Timberlook windows?

Timberweld technology ensures that flush sash casement windows are fully sealed at the corners with a beautiful, high quality finish. This innovative construction method combines the classic look of timber butt joints with the precision and durability of modern welding.

Are Timberlook windows customisable to suit different home styles?

Yes, Timberlook windows offer bespoke options to complement any home style, from a modern townhouse to a country cottage. Homeowners can choose from additional decorative features like astragal bars and Monkey tail handles, and a wide range of colours to achieve a perfect match. We also offer beautiful wood effect finishes to replicate the look of traditional timber windows.

How do Timberlook flush sash windows improve energy efficiency?

Timberlook flush uPVC windows are crafted using modern materials and advanced technology, ensuring excellent thermal efficiency. This means they help to retain heat, reducing heating costs while maintaining the traditional charm of timber frames.

Can Timberlook bay and bow windows be used in modern homes as well as period properties?

Absolutely. Timberlook bay and bow windows blend traditional craftsmanship with modern performance, making them ideal for both period renovations and contemporary builds. Their timeless elegance enhances any property by creating a stunning focal point and increasing natural light.

Close up view of white flush window seam

Timberweld tech

Innovative technology, modern design

Our Timberlook windows are completely sealed using patented Timberweld technology. Timberweld is a method of construction which balances the aesthetics of traditional timber butt joints with the precision and accuracy of modern welding techniques. 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.

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

    Stylish Colour Choices to Suit Your Home

    Our Timberlook windows are available in a range of standard colours, woodgrain foils and dual-colour options. With so many options available in our heritage colour collection, 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

    Cills

    Choosing the right cill for your Timberlook windows

    We offer a choice of cill options to enhance your flush sash 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 flush sash 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.

    Related Information

    Read Our Latest Timberlook Blog Posts

    In our latest blog posts, you will find helpful insights into Timberlook windows and doors. Get clear advice about wood-effect uPVC, traditional window designs, and energy-efficient home improvements. Read these articles to find practical tips for upgrading your property.

    Contact Us for Expert Window Advice
    uPVC Flush Sash Windows: A Modern Twist on a Classic Design

    uPVC Flush Sash Windows: A Modern Twist on a Classic Design

    10 April 2025

    uPVC Cottage Windows: The Perfect Blend of Tradition and Technology

    uPVC Cottage Windows: The Perfect Blend of Tradition and Technology

    02 April 2025

    How Wood Effect uPVC Doors Can Enrich Your Home’s Kerb Appeal

    How Wood Effect uPVC Doors Can Enrich Your Home’s Kerb Appeal

    02 April 2025

    Heritage French Doors: Bringing the Outdoors In

    Heritage French Doors: Bringing the Outdoors In

    19 February 2025

    Georgian Bar uPVC Windows: Classic Looks, Modern Comfort

    Georgian Bar uPVC Windows: Classic Looks, Modern Comfort

    19 February 2025

    Heritage Windows and Doors: Timeless Style with Modern Efficiency

    Heritage Windows and Doors: Timeless Style with Modern Efficiency

    04 January 2025

    Timberlook: Conservation Area Replacement Windows

    Timberlook: Conservation Area Replacement Windows

    04 November 2024

    Are Traditional Casement Windows Outdated?

    Are Traditional Casement Windows Outdated?

    24 October 2024

    Improving Your Home’s Energy Efficiency with Period uPVC Windows

    Improving Your Home’s Energy Efficiency with Period uPVC Windows

    01 October 2024

    A Guide to UPVC Heritage Windows for Period Properties in 2024

    A Guide to UPVC Heritage Windows for Period Properties in 2024

    22 August 2024

    Wood Effect uPVC Windows Cost: A Comparison to Traditional Timber

    Wood Effect uPVC Windows Cost: A Comparison to Traditional Timber

    25 July 2024

    Double Glazing in Conservation Areas: How Article 4 Directions Could Affect Your Project

    Double Glazing in Conservation Areas: How Article 4 Directions Could Affect Your Project

    02 July 2024

    Surrey installer takes pride in Timberlook ‘ambassador’ role

    Surrey installer takes pride in Timberlook ‘ambassador’ role

    27 June 2024

    1930s Window Styles: Exploring the Benefits of uPVC

    1930s Window Styles: Exploring the Benefits of uPVC

    18 June 2024

    The Great Debate: Traditional Style uPVC Windows vs Timber

    The Great Debate: Traditional Style uPVC Windows vs Timber

    16 May 2024

    Cottage style uPVC windows: Maintaining Style with Modern Performance

    Cottage style uPVC windows: Maintaining Style with Modern Performance

    27 March 2024

    Can I install uPVC Windows in a Conservation Area?

    Can I install uPVC Windows in a Conservation Area?

    04 March 2024

    Guide To Double Glazed Heritage Windows

    Guide To Double Glazed Heritage Windows

    04 March 2024

    uPVC Wooden Window Design: Elegant & Timeless Options

    uPVC Wooden Window Design: Elegant & Timeless Options

    21 December 2023

    Looking for the best wood effect uPVC windows? Introducing Timberlook!

    Looking for the best wood effect uPVC windows? Introducing Timberlook!

    21 December 2023

    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.

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

    Russell Dyer

    Amazing flush casements, fantastic quality product and an amazing customer service. 10/10

    Max Daws