Timber Casement Windows in London

Experience the beauty and craftsmanship of London’s finest traditional casement windows – made from the highest quality Accoya and hardwoods. 

For over three decades, Todi & Boys have proudly designed, manufactured and installed wooden casement windows in London – crafting timeless and elegant timber windows that seamlessly blend functionality with aesthetic appeal.

Todi and Boys
  • Designed & installed by our professionals

  • Beautiful slim profiles

  • Fully insulated, draught proofed & double glazed

  • Featuring secure multi-point locks

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London’s Finest Wooden Casement Windows

At Todi & Boys, our wooden casement windows bring a sense of beauty to both modern and period properties. Our team is made up of London’s finest woodworkers, and we pride ourselves on being able to create the most unique casement windows, and can copy any window like-for-like. 

While we may be in the 21st century, we pride ourselves on the fact our timber casement windows are made with the same features as those that were made 100 years ago. They also incorporate all of the benefits of modern windows – including increased energy efficiency, security and comfort in your home. 

Each window is expertly constructed by our skilled artisans using premium quality timber sourced from sustainable forests. With attention to detail and a passion for excellence, we ensure that every window reflects the highest standards of quality and durability.


We Bring Your Vision To Life

All of our windows are completely bespoke and made-to-order, and we take pride in the fact our company offers completely bespoke timber casement windows that can be tailored to any unique preferences and specifications. 

With a long list of customisable options, we offer flush-fit casement windows, available with openings from the top or side. From choosing the timber and finish to selecting ironmongery, glazing options and other fine elaborate details – our range of options allow you to create windows that perfectly complement your home.

Whether you prefer a traditional casement window look with intricate detailing or a more modern contemporary style, we work closely with you to bring your vision to life – with elegantly modernised windows inspired by Edwardian, Georgian and Victorian design.

Two lare round bay casement windows with leaded glass

A Casement Window Company You Can Trust

We are passionate about what we do, and as a result, we’re proud to be one of the leading joinery and installation businesses in London for wooden casement windows. We don’t just provide exceptional windows and doors with outstanding craftsmanship; we offer outstanding service from start to finish.

Todi takes huge pride in the quality of our wooden casement windows and as a result, our company works hard to ensure all of our customers are left with a smile on their face. We have over 100 5 star reviews on Google alone – proving our commitment to satisfied customers is unmatched. 

If you have been wandering around the streets of Chelsea, Fulham, Putney, Wandsworth, Clapham. Balham. Earlsfield, and many other prestigious boroughs within London – there’s a good chance you will have seen our windows complementing lavish London streetscapes.

history of casement windows

The History of Casement Windows

To the left is a sketch of a casement window from an old joinery and carpentry book published in 1902. Joiners who built period properties around London back then learned from books like these. 

Casement windows have a long and unique history that goes back to the 18th century. As an upgrade from stone mullion windows, they provided a dramatic shift in design and function, with greater accessibility as a key benefit.

Even now, casement windows remain some of the most popular options due to their reliable function and iconic silhouette. If you’re looking for superior security and energy efficiency in your next replacement window, look no further than our wooden casement windows manufactured and installed by London’s leading window and door joinery experts.


Why Choose Todi & Boys?

With every year that passes by, we strive to improve upon both the quality of our products as well as the level of care and attention given to our customers. Some of the things we pride ourselves on are: 

  • Free Surveys: We offer a free survey and consultation process 
  • 100% Customer Satisfaction: We ensure all of our customers are happy with the upgrades to their home
  • Expert Guidance: Rely on our specialists to satisfy your preferences and match your home’s ideal design
  • Design, Manufacture and Installation: We handle the entire casement window replacement process in-house
  • We’re Neat & Tidy: We leave your home exactly how we found it 
  • Increased Energy Efficiency: Our double-glazed casements eliminate drafts, leading to reduced energy bills and a more comfortable home. 
  • Conservation Guidance: Easily navigate conservation area regulations with our expert assistance, especially for listed properties
  • Enchanting Atmospheres: Benefit from custom dimensions, materials, and features for optimal sunlight and ventilation 
  • Cost-Effectiveness: Get the best quality within your budget with completely bespoke options 
  • Noise Reduction: Experience a quieter home shielded from external disturbances

Casement windows are hinged on one side and open outward, with the help of a handle and casement stay can be kept open. This design allows for effortless operation and optimal ventilation, making them ideal for any room in your home.

Simply explained, when the casement window is shut, it rests seamlessly within the frame, forming a sleek, even exterior surface with no overlaps. 

Double casement windows are occasionally known as French casement windows due to their close similarity to French doors. If you imagine the way French doors swing open, double casements function in the same way. 

Our customers are welcome to visit our showroom in Chessington, to view our workshop and learn more about our products and manufacturing process. 

Casement windows tend to either be: 

  • A casement (the part that sits in the frame) that’s made from 4 pieces of wood that have been joined together. Inside the frame, there’s glass that’s hinged to the frame or;
  • A casement that doesn’t open because it’s been fixed shut. In this instance, it will never open because too many openings will overcrowd the window.

These strong, durable casement windows are made from solid pieces of wood, ensuring that your property remains secure against the environments outside.

Yes we do. All of our warranties are dictated by your choice of timber and the level of maintenance required. Whether it’s a contemporary or classic style, we guarantee top-quality products with superior performance.

Beyond aesthetic appeal, with our premium draught-proofing and double-glazing, we guarantee to keep your home comfortable & warm on the coldest of winter nights. With this advanced energy efficiency, you can enjoy year-round comfort while saving on energy costs. 

At Todi & Boys, we understand that keeping your family safe is of utmost importance. That’s why all our wooden window casement windows come with multi-point locking systems and modern features for improved performance, safety and security.

If you’re currently exploring options for your ideal timber casement windows, you might be surprised by the varying prices offered by different window companies. This diversity can often lead to confusion – after all, you want to ensure you’re making the best decision.

Several factors influence the cost of timber casement windows, such as:

  • Quality of craftsmanship
  • Quantity of windows and doors required
  • Choice of timber
  • Size and dimensions
  • Number of panes
  • Glass style
  • Finishing details and design intricacies
  • Hardware choices
  • Installation expenses
  • Considerations for historical and conservation requirements

Similar to purchasing a house or a new car, there are numerous factors to consider that can affect costs. To ensure you make the right choice, it’s crucial to partner with a company that can meet your specific needs.

At Todi & Boys, we provide personalised guidance to all our customers, assisting you through every aspect mentioned above. We encourage all our customers to visit our workshop to address any questions they may have about upgrading their homes.

If it’s feasible for you, we highly recommend considering Accoya for your timber casement windows. Despite its initial higher cost, Accoya provides an exceptional return on investment over the lifespan of your windows.

With Accoya, concerns about rot and the need for ongoing maintenance like painting are eliminated, all whilst prioritising environmental sustainability.

However, if you prefer a combination of Accoya and a hardwood, such as Sapele, for your windows or doors, especially for areas facing the harshest weather conditions, that’s entirely possible.

We specialise in working with both materials and can customise our services to accommodate your preferences. You can find more information on the best wood choices here.

Accoya is a high performance timber and has a list of benefits for casement window maintenance – it also has a 50 year guarantee against rot!

However, for certain other hardwoods, keeping up with the maintenance of your timber casement windows is crucial to uphold their aesthetics and functionality. 

This entails regular cleaning, typically four times a year, as a standard procedure. Additionally, painting is recommended every 4-6 years for standard windows and every 8-10 years for our Accoya windows.

For older windows, it’s essential to periodically inspect the frames for any indications of rot or decay. Prompt repairs should be carried out whenever such issues are identified to halt any further deterioration.

The regulations for replacement windows are often influenced by the specific area you reside in. In regions surrounding Central London, replacements typically adhere strictly to like-for-like specifications concerning styling, design, and materials. Regulations may also specify single glazing and particular glass thickness. 

However, there may be some flexibility in your area regarding window style, glazing options, materials, and glass thickness, depending on the conservation level in place. The expertise we have acquired over the years enables us to assist you in navigating these nuances, ensuring you find precisely what you’re looking for while adhering to conservation guidelines.


Wood choice 1: Sapele

Sapele is a north African hardwood that’s part of the mahogany family. It looks beautiful and has incredible rot resistance. It takes years for any rot to set in, unlike softwood, which can start to rot in just 1 to 2 years. Read more here.

Wood choice 2: Accoya

Accoya is a softwood that costs more than most expensive hard wood. It doesn’t absorb water in the way other wood does. It doesn’t rot due to the fact rot needs water to develop. Accoya isn’t affected by insect attacks either. Read more here.



The highest quality spray paint applied with a methodical preparation system that is specially designed to make our windows and doors make your home look beautiful for decades.

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We never compromise the 100 year old traditional joinery of the past. All the modern benefits of new windows and doors with the same elegant profiles as your originals.

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Small investments in time taking care of your windows and doors will pay dividends over the years. Find out the best practices to keep your windows and doors looking beautiful.

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When fitting in period properties we never know what we'll find. If something unexpected happens, you'll want a skilled, experienced team with a positive attitude on your side.

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What separates timber windows and doors that last years or decades? The secret is hidden in the joints. Our traditional joints are essential to windows and doors that last decades.

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Draught Proofing

A small detail that has a huge impact on your home. Draught seals are easy to add and difficult to masterfully blend into your windows and doors. What makes good draught proofing?

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vent lock

Locks and ironmongery

A cross between padlocks and jewellery. We use high-security locks paired with beautiful ironmongery. So what makes a lock keep you safe whilst complementing your home decor?

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double glazing

Double Glazing

Double glazing will insulate your home, reduce noise, make your home safer, and increase your home's value. We're one of a handful of joineries that make our own double glazing.

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Get in Touch

Call us now for a free survey on: 0208 785 1223

Email us on: sales@todiandboysjoinery.co.uk

Or send a message in the contact form with a brief description of your enquiry.