Timber Sash Windows

SJB Sash Windows Specialise in the replacement of traditional timber sash windows. We offer a supply & fit service as well as a supply only service.

The majority of our new timber sash windows are hand crafted using Accoya wood, a sustainably sourced modified wood that comes with a 50 year anti-rot guarantee. We also offer alternative timbers if preferred.

Traditional timber box sash windows come in a choice of spiral balanced or cords & weights system.

The spiral balance is a modern-day alternative. They are often used in new buildings & buildings where there is not enough space to fit large boxes that encase sash weights, but the result still needs to be historically accurate and pleasing to the eye. Spiral balanced windows were introduced back in the 80’s as an alternative more economical method of operation.

Sashes are fixed to a spring tension spiral and operate on friction. This modern day alternative of the classic box sash window reproduces the original charm and character of English sash windows and incorporates all the traditional features of an original box sash window with a modern method of operation.

  • sash windows london
  • Double box curve windows london
  • Triple box sash windows SE21
  • secondary glazed windows
  • new sash windows
  • upvc sash windows

The sash cord and weights system, reproducing the original charm and character of an English sash window with a modern method of operation. The cords and weights sliding sash window ensures the traditional character and charm of a period building is maintained, whilst incorporating the latest advances in timber window technology.

The Sliding Sash Cords & Weights window is a vertical sliding sash, incorporating a traditional pulley wheels and steel or lead weights to help with the windows to open & close easily. The Cords & Weights design utilises nylon cord on self-lubricating ball bearing pulley wheels to operate the opening of the top & bottom sash window. This profile is particularly suited to stone or brick new build mansions and prestigious refurbishments. Our Cords & Weights Sliding Sash window ensures the traditional character and charm of a period building is maintained, whilst incorporating the latest advances in timber window technologies, security, and performance for 21st century living.

Complete Window Replacements
New Sashes Window Into Existing Box Frames

London’s Leading Timber Box Sash Windows

Heritage – Energy-Efficient – Sustainable.

Robust, reliable and full of character, timber sash windows are amongst some of the most popular products in our whole collection.  Whether you are looking for timber box sash windows or timber sash repairs, specialist support from SJB Sash is always here to help you achieve that perfect, practical look.  What’s more, we are still ready to support you on a bespoke basis. This means that any timber sash window styles you choose with us can be designed and fitted to your home’s exact standards.  We don’t believe in one-size-fits-all.

But what is it that makes timber sliding sash windows so accessible?  There are a variety of reasons why people up and down the country are installing timber sash as part of new window solutions as well as part of replacement services.  If you already know that you want timber windows but are unsure of the build or finish you’d like to lead with, allow us to break down some of the facts for you to better inform your choice.  Ultimately, if you need help from our leading team at any time, all you have to do is call 02082969487 or  for advice while shopping.

Let’s Chat About Your Requirements

Get in touch today with one of our friendly team members for free expert advice & guidance on your requirements.

Request a Free Quote

Window Styles & Colours

Styles Of Sash Window

There are many styles of sash windows, we are able to create the variant that suits your property.

sash windows styles and types
Single Colour Options
Dual Colour Options

We can also paint your new wooden sash windows and door two-tone,
one colour outside, and a different colour inside.

Request a Free Quote

What Are Sash Windows?

Sash windows were, traditionally, single-pane systems. These windows work, traditionally, by sliding one sash over another to open and close. Sash window systems are evident in many traditional and classic buildings; however, it is a style which has translated well into the modern age.

One of the significant differences nowadays, however, is that sash windows use more than one sheet of glass. It is common for you to see double glazed windows in London and elsewhere. Double and triple glazing are modern window standards we feel all homes can benefit from. While traditional sash used by UK homes in the past may have served a practical use, they may not have offered the most comfort and warmth.

Therefore, as a leading specialist, we blend the best of the old and the new. We take the simple, space-saving practicality of traditional sash window design, and introduce modern comforts and standards. This way, homes can benefit from the stunning, customisable looks of a sash window, while getting all the warmth and comfort benefits of the modern era. Our window innovations lead the way in terms of flexible, practical design. Why not take a closer look at some of the options we have available?

Benefits Of Timber Sash Windows

Many people choose timber sash for the fact that it’s a system which lasts years to come.  Some homes have been benefitting from it for decades – even centuries! When looked after properly, timber sash windows in London and elsewhere will stand the test of time.  That’s because these systems are built to be robust and resilient against regular use, as well as against the weather. Timber sash window costs will pay for themselves in a short space of time – as there will be little if any maintenance needed over the years.  Compared to less robust window systems, timber sash offers incredible durability and cost-effectiveness.

What’s more, the look can be truly stunning.  Timber window systems are recommended if you are keen to take up a classic or traditional look.  However, with the right team of specialists by your side, this window system can be tailored to more modern standards, too.  Therefore, don’t be afraid to ask for a more creative or bespoke twist on timber window solutions. SJB Sash is here to help with all manner of complex and/or specific requests!  Once again, we don’t invest in a one-size-fits-all philosophy.

Projects we have completed

We’ve mastered our craft over many years of manufacturing & installing a wide range of
Sash, Casement, and Doors into a wide variety of homes.

Windows Installed
Doors Installed
Homes Served
Years Of Experience

Get a Quote Now

Request A Quote

1 Select Windows
2 Select Windows Quantities
3 Personal Details

Timber Sash Windows For Sale

What Are Average Timber Sash Windows Prices?

Ultimately, the price of a timber sash window installation is going to vary from application to application. That’s because there are several variables which go into a project. You may not choose from standard sizes, for example, which may mean extra work and support needed in fabrication and fitting. However, that doesn’t mean you won’t be able to access a high-value tariff.

We don’t publish all our tariffs and rates online simply because bespoke project pricing can vary. We want to make sure that our customers have access to a flexible, bespoke pricing system that they can depend on when it comes to setting up their project. When you first approach SJB Sash about new timber sash windows in London, we will offer you a quote that’s easy to understand and which is broken down.

What’s more, we want to make sure that you are only ever charged for the services you use, and those you benefit from. We see little point in adding on fees or labour costs along the way. Therefore, applying for a free quote from SJB will grant you a reliable, fixed-rate which you can depend on throughout the project. If you are concerned about timber sash window cost, don’t be. We work with competitive rates and pricing to ensure you get fantastic value, regardless of what you need.

sash windows replacement london

Practicality And Precision

Choosing SJB to for installation will benefit your budget as well as your project timelines.  As leading experts in the design and installation of bespoke timber sash windows, you can rely on us to deliver an end product which is perfectly in-line with your wishes.  What’s more, we will always deliver project support and labour within timescales that are convenient for you. We aim to provide an efficient, precise service. Just because we work efficiently, doesn’t mean the work we do is hurried or rushed.  Far from it. We want to make sure the windows you buy from us will weather years to come.

Timber sash installations offer incredible practicality and convenience. Sash window systems are already straightforward to operate and maintain. Timber systems are amongst the most resilient on the market, which means you will be purchasing windows which are easy to use and which will stand the test of time.  Bespoke timber sash windows, too, can be tailored and fitted to your exact desires. There will be no more worry over whether or not a window solution will suit your property – as we’ll make sure of it before we even start installing.

A sash horn is one of the key features that make a traditional timber sash horn instantly recognisable. Originally sash horns were an integral part of a timber sash. They were designed to strengthen the mortice and tenon joints of the window and prevent the sashes being opened too far.

You will see a few of our frequently used horn designs below.

Please note we can manufacture to any design horn you currently have.

The newly manufactured sash windows are treated with timber preservation which protects from wet and dry rot. After this the windows receive primer and three coats of a micro porous acrylic paint. All windows are then hung and dried in our dedicated drying room.

Here at SJB Sash Windows we are adept at successfully matching colours with the existing coatings on the property, including stains and varnishes.

SJB new sash windows are crafted using sustainably sourced timber and we match all mouldings and profiles to blend in with your existing sashes and decor seamlessly.

We know that your primary interest is likely to be looking for the most energy efficient double-glazed sash windows for your home. Yes, it’s common knowledge that double-glazed sash windows make a reduction of heat loss, but not many know that the figure is as high as almost a third of all domestic heat escapes through windows. The double-glazed sash windows we install are guaranteed highly energy efficient and will improve your energy efficiency and reduce energy bills. Should you have special requirements there are also upgrade options to further increase the efficiency of your windows.

In addition to improving your energy efficiency and reduced energy bills investing in new double-glazed sash windows will also provide you with reduced noise pollution. Sometimes it’s nice to close your windows and shut the outside world out! Specialised acoustic glass can reduce external noise pollution leaking into your home by up to 60%.

Technically speaking acoustic glass has an additional lamination which features an interlayer not seen in standard double-glazed windows. It’s this extra layer that can shut out extra noise such as road traffic, overhead planes and railway lines. Importantly this extra layer does not negatively effect the light flow into your room, and so you can enjoy reduced noise without effecting the look of your windows.

Timber Sash Windows Cost

No matter where you may have compared timber sash window cost elsewhere, it’s crucial you find a leading local specialist to help you through the whole process.  After all, windows are something you should be able to rely on for years to come. Why settle for anything less than the best care and guidance?

We always advise you to be careful if you have been looking at ‘cheap’ windows elsewhere.  With some firms and services, a cheap service can mean that quality in care and product delivery are compromised for price.  At SJB, we offer a balance. We support affordable, cost-effective solutions which are competitively priced. We never compromise the quality of our products or service for the sake of lowering cost.  Instead, we dedicate ourselves to providing genuine value in everything we do.

If you’d like to know more about setting up timber sash windows for your home, call 02082969487 or  today.