Sash Window Prices

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Average Sash window cost

The regular cost of sash windows is around £400-600 per window, so you're looking at about £2,000 to install 4 sash windows in a flat, and up to and exceeding £5,000 for replacing all the windows in a standard-sized home.

Average price per Sash window job in 2025

Avg. price low

Avg. price low
£1,303

Avg. price

Avg. price
£3,545

Avg. price high

Avg. price high
£6,096

£6600

£4950

£3300

£1650

£0

Prices based on actual Sash window costs for your area, as reported by local LeadsDoWork members.

Sash window installation cost in your area 2025

Labour cost £1,400
Material cost £700
Waste removal £100
Time frame: 1-2 days

Advantages for Sash window

  • Low cost vs other materials such as wood and aluminium
  • Available in a wide range of designs and styles
  • A good insulator that is highly energy efficient
  • High security to make your home more secure

Disadvantages for Sash window

  • Does not use natural materials so not as environmentally friendly
  • Can discolour if not cleaned very regularly
  • Adds less value to your home than wooden windows

Sash window Manufacturers

Sash window FAQs

What is uPVC?

uPVC is unplasticised polyvinyl chloride. It is a favourite amongst homeowners and manufacturers for its cheap production cost and excellent benefits. uPVC is used for window frames, conservatories and doors. In fact, uPVC can be three times cheaper than wooden frames and is also the most energy efficient option.As well as this, uPVC is now available in a range of colours other than the typically seen bright white finish. It can also be recycled, is durable and resistant to changing weather conditions.

How does double glazing work?

One of the essential factors that makes a home truly a home is the convenience and comfort it provides us. As a result, we usually have a long to do list comprising things that come together to make sure our home is comfortable with ambient temperature at the very top of the scale of preference. After all, no matter how greatly designed your furniture and home decor is, it probably would amount for nothing if the temperature is either too hot or too cold. Some of the most common ways we incorporate to make the temperature a lot more conducive and warm during the winter months is by installing air conditioning system or through top notch insulation materials, but the fact still remains that a lot of heat would escape through the doors and windows. And that’s exactly the use of double glazing. So how exactly does double glazing work?

Double glazing basically works by preventing the escape of air and trapping it between two panes of glass. It’s the trapped air which serves as an insulation barrier which delivers 3 major functions. First and foremost, it stops the escape of heat through the window as the barrier created insulates the room from varying air temperatures at both sides of the glazing unit. The second major function is the double glazing works to keep down noise pollution coming from outside. While the third major function of double glazing I the fact that it helps minimize condensation which usually occurs on the single glazed windows’ inside as the cold outside air works to cool the warm air inside the house. When you install a double glazing window, the insulation barrier generated will work to stop the air temperature transmission which ultimately helps prevent the occurrence of condensation.

What happens to my old windows?

After fitting your new windows, your installer should take away and dispose of your old windows. If you want to keep them, just let your installer know before they start work. The UPVC frames are melted down and used on the unseen parts of new windows. Aluminium frames are re-smelted and wooden are broken down and used as chipboard.

What is the Window Energy Rating (WER)?

The energy efficiency of windows is measured using ratings, varying from A, the most efficient, to G, the least efficient. This scheme is run by the British Fenestration Council (BFRC). To comply with Building Regulations you’ll need windows of energy efficiency at least level C.

How much could I save on my energy bills if I install double glazing?

As well as keeping your home warmer and reducing noise, you’ll notice a saving on your energy bills from installing double glazing. If you install A++ rated windows in your home after having single glazing, you could save up to £120 year on your energy bills. The Energy Saving Trust has more information.

What are the other double glazing options?

Double glazing frames don’t just have to come in uPVC and are available in other materials including aluminium and wood too. Wooden or timber windows are more suited to properties with a traditional look and are often the frame of choice for listed buildings and homes in conservation areas. When properly maintained wooden windows can last well for years but can be up to three times more expensive than uPVC.Aluminium is the strongest and most durable option. As a metal it is highly resistant to the UK’s changing weather conditions and won’t rust, warp, crack or peel. Aluminium offers a modern appeal and is available in a range of colours.

What happens if I have problems with my new windows?

Ultimately the double glazing company you use is responsible for the quality of work and to ensure your windows are of an excellent standard. This is why it’s important to get a warranty and use a Fensa registered installer. If problems emerge within a couple of years then it’s likely the installation was of a poor standard.Contact the double glazing company and have the issue repaired or new windows replaced. This doesn’t matter if you received a discount of free windows as part of the deal. As long as you entered into a contract the company is obliged to restore the windows.

How much money will I save with double glazing?

By replacing the single glazed windows in your home you stand to make savings of around £170 each year. It’s not just the financial gain that makes double glazing attractive though and you can also save up to 680kg of carbon emissions annually. Over 20 years this is a saving of around £3,400 and 13,600kg of CO2.

Sash Window Restoration, Rennovation and Draught-proofing by Heritage Sash Window Specialists

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WFS Anglia

Based: in Peterborough, PE2

Here at WFS Anglia Ltd, we have built ourselves a fantastic reputation throughout Cambridge, Northam...

Latest review

Colin S., PE14
8th December 2024

Windows | uPVC in Wisbech

Straight forward no pressure quotation took 1/2 hour. Fitted within a few weeks.very...

ECO WARM HOMES SW

Based: in Rotherham, EX17

We are a Home improvements company specialising in replacement windows doors and conservatory instal...

Latest review

Vaughan N., EX39
18th June 2024

Windows | uPVC in Bideford

Very polite, no pressure

Secured homes

Based: in Doncaster, DN8

Secured homes is based in Doncaster and have 11 positive reviews

Latest review

Nigel L., BD10
27th January 2024

Windows | uPVC in Bradford

Started at a high price then came down to a middle price then came down to a low pric...

The Window Company

Based: in Nottingham, NG14

The Window Company have been trading since 2001 in the East Midlands area, offering a bespoke servic...

Latest review

Denise M., S80
6th April 2024

Windows | uPVC in Worksop

John came to give a quote he was honest and friendly with no bullshit, he came measur...

A Rated Home Improvements

Based: in Swansea, SA4

Founded in 2010 in Port Talbot, but now based in Gorseinon, A-Rated Home Improvements install double...

Latest review

Lesley H., CF36
14th March 2024

Windows | uPVC in Porthcawl

Excellent presentation with all questions answered .. and a great product .. larger c...

Affordable Quality Windows

Based: in Neath, SA10

Affordable Quality Windows is based in Neath and have 6 positive reviews

Latest review

Lesley H., CF36
14th March 2024

Windows | uPVC in Porthcawl

Already had three engagements so declined appointment .

A One Home Improvements South West

Based: in Swansea, SA5

Over 35 years’ experience, we offer the complete package from design to installation & 10 years be...

Latest review

Lesley H., CF36
14th March 2024

Windows | uPVC in Porthcawl

Really positive appointment fully explained everything and the products .. seemed to...

Barriertherm UK

Based: in Middlesbrough, TS1

We are a family run company run on family values we provide a personal professional service offering...

Latest review

Shane W., NE9
20th February 2024

Windows | uPVC in Gateshead

So far so good , Non of the sales pitch just exactly what we wanted to see and hear, ...

ALL Weather Roofline

Based: in Doncaster, DN7

AWR have years of experience in creating stunning home improvement products, carefully crafted right...

Latest review

David M., LN2
12th October 2023

Windows | uPVC in Lincoln

Stuart was really open and honest. Nice chap, no hard sell.

Britelite Windows

Based: in Maidstone, ME15

We fit high quality double glazing and the next generation triple glazing, using only the best mater...

Latest review

Mazdak A., SM4
24th September 2023

Windows | uPVC in Morden

Not a very structured approach to how to make contact, do the consultation, timeline ...

Rated Local window installers

Britelite Windows Ltd

156 review(s)
Based: in Maidstone, ME15 9XY

We fit high quality double glazing and the next generation triple glazing, using only the best materials. Fully guaranteed for 10 years, Britelite products will save you money by reducing your energy consumption and require little to no maintenance a...

Conservatories & Windows Direct

2 review(s)
Based: in Cannock, WS11 0BW

Conservatories & Windows Direct are suppliers and installers of high quality energy efficient Conservatories, Orangeries, Windows & doors. Unique to our company is OPTITHERM, a combination of the market leading products to enable us to provide our...

WFS Anglia LTD

60 review(s)
Based: in Peterborough, PE2 9PS

Here at WFS Anglia Ltd, we have built ourselves a fantastic reputation throughout Cambridge, Northamptonshire, Peterborough, Milton Keynes, Buckinghamshire and surrounding areas. This is based upon our perfect harmony between high quality workmanship...

Crystal Windows and Doors Ltd

64 review(s)
Based: in Romford, RM7 7PN

Crystal is a uPVC Windows and Double Glazing manufacturer and installer. We have built a strong reputation in London and the South East for great value and exceptional service in the design, production and installation of quality uPVC Windows, Doors,...

Omega Lifestyle LTD

56 review(s)
Based: in Peterborough, PE7 3EL

Omega Lifestyle prides itself on providing a high quality of customer service from the initial order right through to aftersales. Our professional customer service team make the whole process of buying a new conservatory, windows, doors and patios/dr...

The Window Company

13 review(s)
Based: in Nottingham, NG14 5FP

The Window Company have been trading since 2001 in the East Midlands area, offering a bespoke service for windows, conservatories and roofline. As a company we strive for quality of product, excellence of installation and unequalled customer service....

A Rated Home Improvements Limited

26 review(s)
Based: in Swansea, SA4 9WN

Founded in 2010 in Port Talbot, but now based in Gorseinon, A-Rated Home Improvements install double glazing, uPVC and Aluminium windows, doors and conservatories to a professional and very high standard. With almost 10 years’ experience operating ...

Kent Glazing Limited

43 review(s)
Based: in Gillingham, ME7 3NE

KENT GLAZING - number one installer throughout the Kent area. Family business - with over 30 years experience - specialising in Double Glazing, Windows, Doors & Conservatories.

A One Home Improvements South West Ltd

1 review(s)
Based: in Swansea, SA5 4JB

Over 35 years’ experience, we offer the complete package from design to installation & 10 years beyond. We offer start to finish project management where as well as our 1st class window fitters and carpenters, we can take care of any building work ...

Bell Windows (Ni) LTD

25 review(s)
Based: in Newry, BT34 4TY

Bell Windows was brought together in 2008 by Gordon Bell. Even though it is a relatively young company, Gordon himself has worked with uPVC products for over 30 years and also in the Building trade for a further 12 years before that

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