New Sash Windows in London

Are You Looking for Professional New Sash Windows Installers in London?

Looking for new sash windows installers can be tough, but one thing is for sure, the majority of people who have used us would recommend Ace Sash Windows London.

We have been installing sash windows for over 10 years, so you can be confident that your home is in safe hands.

With our experienced team of craftsmen, we are able to provide a full and bespoke service, no matter how big or small the project.

As a member of the Federation of Window Industry Suppliers (FENSA), we are able to install all makes and types of sash windows whilst adhering to their strict code of conduct.

If you’re looking for quality sash windows in London with great satisfaction and peace of mind, look no further than Ace Sash Windows London. Get in touch and get a fast quote today to find out how much your new sash windows will cost!

Our Guarantee

  • Unrivalled Expertise in Door & Window Glazing
  • Industry-approved Door & Window Glazing
  • High-quality Door & Window Glazing
  • Unbeatable Value for Money
  • 100% Safety and Satisfaction
  • Checkatrade Registered
  • Homepro Insured
  • CERTAS Guarantee

What Are The Types of New Sash Windows We Install?

Sash Windows are one of the earliest forms of windowed architecture and were used in Western Europe from the 12th century onwards. Sash windows remain popular today, with many types of traditional sash windows still being built by various manufacturers.

Sash windows come in all shapes and sizes, each with its own features and benefits which will make particular sash windows more appropriate for certain situations than others. At Ace Sash Windows London, we carry a wide range of sash windows products.

uPVC Sash Windows

uPVC windows are the answer to many homeowners’ prayers. If you’re after a durable window that will stand the test of time — as well as providing real value for money — uPVC sash windows are a superb choice.

Timber Sash Windows

Timber Sash Windows are among the most popular, traditional and versatile window styles. They’re generally made from hardwood or pine. If you live in a historic building, chances are your sash windows will be timber-framed. Our sash installer will take the timber frames then fit double glazed panes into them. This ensures your windows are insulated properly whilst maintaining their original look and character.

Box Sash Windows

Box sash windows, also known as box frames, are a type of sash window that have had several improvements. They don’t need any special foundations and can be installed fairly quickly. This makes them ideal for new builds or for renovating period properties.

Spring Balanced Sash Windows

The spring balanced sash window is one of the most common designs of new sash windows in the UK and is particularly popular due to its stability. With its use of springs to hold the sash open, this window closes gently to ensure it does not put pressure on the glass.

We Are Also Available to Offer Sash Windows Related Advice Where Needed

Get in Touch With us for Your Sash Windows Quotes

Legacy Sash Windows

Legacy Sash Windows are high-quality made-to-measure drop sashes, available in a choice of hardwood and softwood timber. Our Legacy sash windows are designed to fit many styles of home. You can choose from our wide range of wood colours and veneers, so you can be sure we’ll have the perfect style for you.

Georgian Sash Windows

Georgian windows are one of the most popular window types for refurbishment and new build projects. They are characterised by their simple glazing bars and slender proportions, as well as additional features such as cills.

Georgian sash windows can have either two or three lights; however, three light Georgian sash windows are more common on properties in London.

Victorian Sash Windows

Victorian sash windows offer timeless elegance and a simple, clean design. They’re the perfect match for traditional or cottage-style homes as their plain frame works well with any design scheme. These windows are an ideal choice if you like to enjoy fresh air and are looking for natural lighting during the day.

Edwardian Sash Windows

Edwardian sash windows have the classic, traditional look with frames of different widths and a huge variety of different shapes. Our range from slim frames with maximum glazing area to large, bulky sashes. Whatever dimensions you choose, these traditional windows will look great on your house.


Venetian Sash Windows

Venetian sash windows are a popular style of window because they never close all the way, creating a cross-breeze to keep you cool on hot days. A Venetian sash window is generally divided into three parts: the top sash (the moveable portion), which is designed to tilt up and down (it’s this component that can easily be opened or closed when you want more or less air circulating in the room); the bottom sash, which functions as an integral part of the entire window unit; and the middle sash, which allows light in.


Horizontally Sliding Sash Windows

Horizontally sliding sash windows create an elegant look with lots of functionality. The sashes slide left and right to vented or unvented positions. Note that horizontally sliding sash windows are much more common in older properties, therefore they are often referred to as old-style uPVC sash windows.

Hidden Spring Sash Windows

Hidden spring sash windows are one of the most common types we install. Hidden spring sash windows have a multi-point locking system that uses cranked sashes and a spring-loaded catch to hold and lock the sashes in position.

Traditional Sliding Sash

The traditional double sash window is a classy addition to any home. It has two horizontally sliding sashes made of timber that can be opened by cranking the lay of the window. This type of sash window is usually more affordable and easier to maintain than some other alternatives. The traditional double sash window also allows plenty of light indoors as it installs directly into your existing frame.

Bespoke Sash Windows

Bespoke Sash Windows are a traditional bespoke double glazed sash window, manufactured to your exact measurements and supplied with glazing bars, parting beads and in some cases, cills. We can install these windows in any property (even listed ones).

If you have a particular design or size in mind for your sash windows, then we can help you achieve the look you want.

What Are The Features of Our New Sash Windows?

  • Fitted with Spiral Balances
  • Concealed Gaskets
  • Lead-Free and Recyclable
  • Weights and Pulleys
  • Double Draught Sealed

What Are The Benefits of Our New Sash Windows?

10 Year Guarantee

Sash Windows are not just attractive; they keep you warmer in winter and cooler in summer, filled with uPVC to keep out rain, but still allowing air to circulate. We offer a 10-year structural guarantee on all Sash Windows and Fixed Panel Doors.

High-Security Windows

The improved sash window we are offering you is extremely secure. You can easily lock all of its components using a lock-set that comes with the purchase of each individual window.

We also install a modern security glass which makes it impossible to break and provides additional protection against unwanted entry into your home.

Increased Energy Efficiency

Sash windows can be installed on any period property, no matter the age or condition. With the moderate depth of sashes, they make great use of ancient and modern techniques to provide excellent energy efficiency with effective insulation.

Low Maintenance

Our sash windows can be easily maintained at the same time as you are enjoying your home thanks to their durable construction and design which keeps out dust, humidity, and unwanted pests.

Functional Tilt Function

The functional tilt is a feature on the New Sash Window which slides to reveal ventilation in the top portion of the window. The function allows you to open your window wider, allowing light and air into your home while saving you from having to open the entire window.

We Are Also Available to Offer Sash Windows Related Advice Where Needed

Get in Touch With us for Your Sash Windows Quotes

Extensive Colour Options

Stay in the spotlight with our extensive colour options. Our large selection of colours makes your home colourful, invigorating and attractive. We offer you numerous choices when it comes to getting a vibrant look for your house windows.

Replica Hardware

For a traditional look and feel, period fitting replica hardware is essential. Our sash windows come with a choice of all-metal or colour co-ordinated acrylic handles


Fully Bespoke

All of our windows are fully bespoke which means we can alter the design and finish of the product to suit your home. They are manufactured specifically for you, with every aspect built to your specification to ensure a perfect fit for your property.


Superior Sound Insulation

If you’re trying to forget the sound of sirens outside your window or neighbours’ arguments that disturb your nights, then it’s about time you considered the benefits of our noise insulated sash windows. We can provide a wide range of noise insulated sash windows frames, which are framed in beautiful wood and come with double glazing.

Customise Your New Sash Windows

  • Colour
  • uPVC Colours
  • White
  • White Woodgrain
  • Cream Woodgrain
  • Anthracite Grey
  • Golden Oak
  • Rosewood
  • Golden Oak
  • Rosewood
  • Olive Grey
  • Anthracite Grey

Timber Colours

  • White
  • Cream
  • Agate Grey
  • Beige Grey
  • Chartwell Green
  • Light Oak
  • Mellow Teak
  • Warm Mahogany
  • Dark Walnut
  • Ebony


uPVC Hardware

  • uPVC Sash Window Fitch Lock
  • uPVC Sash Window Lift Hook
  • uPVC Sash Window Sash Restrictor
  • uPVC Sash Window Clean Latch

Timber Hardware

  • Wooden Sash Window Fitch Lock
  • Wooden Sash Window Lift Hook
  • Sash Restrictor on a Timber Sash Window
  • Wooden Sash Window Pull Handle

Hardware Colours

  • Gold
  • Chrome
  • White

Sash Horns

  • No Horn
  • Through Horn
  • Plant-on Horn

Opening Mechanism

  • Spiral Balance
  • Cords and Weights


  • Lead Glass
  • Decorative Glass
  • Obscure Glass


  • Georgina Bars
  • Window Sill and Boards
  • Bay Configuration
Need help? Talk to Our Experts

Contact us on PHONEXXX for a free no-obligation quote.

Why Choose Ace Sash Windows London for your New Sash Windows?

Flexible Finance Options

If you’ve been thinking of getting new sash windows for your property, now is the right time. Our sash windows are available with flexible finance options, helping you get the products you want when you need them.

Quality services

When you trust your home to Ace Sash windows London, you are working with high quality and reliable window supplier offering a top-quality service.

Ace Sash windows London provides the highest grade of customer care, from initial planning through to completion of your sash window replacement project.

Price Match Guarantee

What do we want to hear? “My sash windows look great!” We think you should have the best possible value for money and we even offer a price match guarantee, to show our confidence in the quality of our products. So get in touch with our team and find out about any special deals we may be offering.

Free Customer Quotation

If you’re looking for new sash windows then look no further than Ace Sash Windows London. Ace Sash Windows is a family business based in London and has built up a reputation for quality over the last 15 years. We have any range of colour styles, glazing options and design available to meet your needs. Free quotes are on hand from experienced staff via telephone or email.

Sash Windows Designs Which Are Eco-Friendly

Ace Sash Windows London offers a wide range of sash window designs. These are not only elegant but also eco-friendly, lightweight and customizable. Provided in different sizes and shapes, these windows can be used for any place including residential and non-residential places.

Need help? Talk to Our Experts

Contact us on PHONEXXX for a free no-obligation quote.

Approved By Checkatrade and FENSA

Ace Sash Windows London is a top-rated recommended company approved by Checkatrade members and FENSA accredited installers. Ace Sash Windows are one of the most affordable, high-quality sash windows companies in London.

Let Us Start a Project Together

Whether you’re looking for a broad range of products or a precise, bespoke idea, your needs could be met with Ace Sash Windows London. We tailor windows to suit individual properties and the homes they are created for. Give us a call and let us start a project together.


How much does it cost to replace sash windows?
The cost of replacing sash windows can vary depending on many different factors. Factors that increase the cost include integral draught-proofing, high-performance glass, and glazed sashes. Our assistance will help you to understand these things so that you are in a better position to budget for your project – The average cost, however, is between £1,000 and £5,000 for a single-story house with 6 windows or more.

For further information about sash window price analysis or installation, call our team today!

Should I Repair or Replace Sash Windows?
To start off, you need to figure out which of the two you’re dealing with: An old, draughty, and rattling sash window. Or a beautifully restored and lovingly looked after sash that is no longer quite up to the job.


Can Sash Windows be Double Glazed?
Sash windows are pre-frames and can be double-glazed by purchasing suitable fitting units. We have designed a pocket to accommodate double glazing and we will supply bespoke units to match the size of your existing window as well as the wooden sashes.
Can you soundproof sash windows?
YES, sash windows are very easy to soundproof. In the first instance, you should make sure that your windows are in good condition and have been maintained properly over the years. New sash windows can be soundproofed to a high standard using products specifically designed for this purpose.
Do we need to remove curtains/blinds/furniture?
If you’re considering replacing your windows, we will come and remove your curtains/blinds/furniture on the day of fitting so that we can get the job done quickly, efficiently, and with minimal disruption.
Do we need to supervise/be at home when the work takes place?
The installers will need access to your house for the day, however, they usually work quickly and aim to complete their work in one day. When they arrive, you are welcome to be present if you wish to supervise the work, but most homeowners prefer not to be present onsite. Most of our customers have no preference either way – it’s up to you!
How do we proceed if we wish to book work in?
As part of our build-measure-install service, we leave a site visit request to enable us to have a detailed discussion about project specifics. From your site visit, we’ll make a quote for you. You can then either confirm the work or ask for more information.

We Are Also Available to Offer Sash Windows Related Advice Where Needed

Get in Touch With us for Your Sash Windows Quotes