Estimated Window Sill Replacement Cost | Choose for home. (2023)

What is the cost of replacing a window sill?

The replacement window sill is a key feature of every British home. Not only do they protect the walls below the window, but they are a modern feature that adds value to your home.

In this article we will look at the average cost of replacing window sills in the UK. We will discuss the total cost of the work, the cost of material for window sill repair, the cost of labor for this type of work and any other expenses that may be incurred during the work.

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In addition, we'll look at the lead times you can expect for this type of work and the price of removing a window sill, as well as some details on the different types of window sills.

If your home window sill is damaged or worn out and needs to be replaced immediately. The good news is that replacing a window sill is simple.

We recommend using a professional to complete your window sill replacement. This is especially true when you have windows with sills or stone windows, as they require an expert to do the job correctly.

Window sill replacement for UK aftermarket windows costs approx.£140 a£220.This includes the cost of materials and labor. The total cost you will pay will be based on a variety of variables including the size and shape of the window sill to be replaced and your UK location.

People living in the London area can expect to pay more for work than those in other parts of the North West or other areas of the UK.

Whether it is an internal window sill repair or an external window sill replacement, the cost will mainly depend on the size of your window, the material used and where you live in the UK.

window sill cost

The table below shows the averagereplacement window sillcosts for different types of window sills:

Job descriptionaverage cost
Standard sill replacement140-220£
Replace very rotten sill and frame250-500
Sash window sill replacement120-340£
Footrest replacement140-250£
Edwardian window sill replacement3.000-4.500 £
Concrete sill replacement100-200£

What is the cost of supplies to buy a replacement window sill?

If you are interested in changing your window sill for a DIY project, you might be thinking about the price of materials but not the cost of labor.

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The cost of inputs will mainly depend on the type of material used and the size of the window sill.

The table below shows typical prices for mid-size window sill replacement based on the different items.

PVC window sill replacement20-80£
Replacing a wooden window sill50-120£
Concrete window sill replacement30-100£
Stone window sill replacement800-2500£

Most people choose areplacement window sillsinstall a completely new window sill of material similar to the old one.

This is because most people want their new window sill to line up with other sills in their home.

It is also simpler to replace a window sill using an identical window sill.

What are the additional costs to replace a window sill?

If you're looking to replace your window sills, there are a lot of additional expenses you can plan for when undertaking this type of project.

Below is a list of additional costs you may want to consider when replacing window sills.

Installation of double-glazed windows

If you're repairing window sills, it might be the perfect time to replace your home's windows with new ones.double glazed windows.

It's a huge undertaking, but it will improve your home's appearance and greatly increase its value. It is necessary to hire a specialist to install double-glazed windows.

The cost of replacing all the windows in your home by installing new double-glazed windows is£300 up to£800for each window.

Painting the exterior of the house

If you are replacing window sills that are on the outside of your home, you can also change the look of your home by applying a coat of paint.

The total cost of painting your home's exterior depends on a number of variables, including the dimensions of your home and the type of paint you choose and where you live in the UK.

For example, performance costs are typically approx.£600-£1200while the price of painting your house outside can be as low as£500-£1500..

painting and decoration

If you want to replace the window sills in your home, you might be interested in painting and decorating some rooms in your home to improve the appearance of your home.

The price of painting a room will be approx.the reach of£180 for£500.If you want to wallpaper your walls, it usually costs between£ 200-£600..

Cost for merchants to install replacement window sill

If you have already purchased the materials or prefer to purchase them yourself, then you may be wondering about the cost of hiring a contractor yourself without the cost of the materials.

The price you pay to have a contractor come and replace your window sills will mainly depend on where you are in the UK. For a typical window sill replacement, you can expect to pay a contractor40-55£general for work.

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If the work is more difficult or requires the use of large amounts of materials such as concrete, the work may take longer and therefore the cost of labor will increase according to the additional time required for the work.

If you live in London, you can expect to pay 10 to 25 per cent more in labor costs than people living in the North or other areas of the UK. This applies to any work you have completed on your property in this area.

If you are replacing stone windows, you will need to hire a mason to complete the job for you. This will cost a lot more than a typical replacement. A mason usually strikes between£ 150-£300every day for the work they do.

How long does it take to replace a window sill?

If you want to replace your window sill, you might be wondering how long the job will take. The length of time will vary depending on the type of window sill being replaced and the number of sills being replaced.

On average, you need to spend between 1 to 2 hours to complete the replacement of a single window sill. When your window sill is made of sturdy materials such as stone, the project duration may be longer as these sills can be more difficult to install.

If you plan to replace all of the window sills in your home, it will typically take about 1-3 days, depending on the dimensions of your home, as well as the number of window sills to be replaced and the material used.

Different types of window sills

When it comes time to replace window sills, most prefer to replace their existing window sill with the same one because it will likely match other sills in the house.

If you want to replace some or all of the window sills in your home, consider another sill material.

Next, we'll look at the different materials you can choose for your window sill and the pros and cons of each.

wooden window sills

If you are a fan of traditional window designs, you will probably prefer a wooden one.window sill replacement.

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Modern wooden window sills have long-lasting waterproof layers that help protect them from moisture. However, they are more often used on interior windowsills than on the exterior of the house.


  • traditional look
  • Waterproof layers for long-lasting protection
  • Ideal for interior windows


  • Not the best choice for exterior windows

tile window sill

In older houses and cottages, you can see tiled window sills. Such window sills have an elegant appearance and are commonly used in bathrooms and kitchens.

One of the main advantages of using tile window sills is the fact that you can choose from a wide variety of tiles. You can choose from different colors and designs that suit your preferences and enhance the look of the room.


  • Ideal for kitchens and bathrooms.
  • Variety of designs and colors
  • Very chic
  • Extremely safe and waterproof


  • It may not look attractive in other rooms in the house.
  • Not ideal for exterior window sills.

stone sills

Many old stone and brick structures still have stone sills. They are extremely durable and last a long time. They also integrate with the entire exterior and interior of your home.

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They also don't require any special maintenance or repairs. The only problem with these window sills is that they tend to be very expensive compared to other window sill materials.


  • very resistant
  • Material that lasts a long time
  • They blend well with the exterior and interior of the house.
  • They don't need any special maintenance or repairs.


  • A very expensive alternative

metal sills

Aluminum is a very inexpensive material and this is one of the main reasons why metal window sills are in such high demand these days. They are durable and easy to adjust.

However, the sound of the raindrop on the windowsill can be annoying. Some manufacturers have noise reduction tapes to help with these types of window sills. However, this is unusual.


  • A very economical alternative
  • a popular choice
  • Ideal for external windows
  • Very easy to set up


  • Raindrops that sound like raindrops can cause irritation

plastic sills

PVC window sills are a great choice as they come in a variety of styles and colors. When manufactured, PVC window sills can have a natural, stone, marble or wood look and you will be able to find a sill that fits perfectly with the style of your home.

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At the same time, these window sills are very resistant to mold and scratches. Plus, they're waterproof, making them ideal for both indoor and outdoor windows.


  • Many styles and colors to choose from
  • Imitation of natural stone, marble or even wood
  • Resistant to mofo
  • scratch resistant
  • waterproof properties
  • Ideal for interior and exterior windows.
  • Installation is simple and easy


  • Fabric color may change and distort over time

How much does it cost to remove a window sill?

If you are not satisfied with the appearance of your window sill, you may be interested in the costs associated with removing the window sill.

If you are thinking of removing a window sill, you can do it yourself and save money.

Many people prefer to hire professionals to remove their window sills in order to ensure that the job is done correctly and that the process is orderly.

Most contractors will manage waste disposal for you as part of the total cost of removal.

The typical cost to hire a professional to remove window sills ranges from£20 a£30all the time. The price of the entire project will depend on the amount of window sills to be removed.

It takes about an hour to lower the windowsill. So if you're planning to remove all the windows in your home, it's easy to think how the cost of labor can add up to a significant amount.

Common questions

Q What is the most effective window sill fabric?

A: It will depend entirely on what you are trying to achieve. Stone is natural and the most durable, tough, long-lasting material you can find on a windowsill.

But it's also an extremely expensive option, and if you're considering replacing all of the window sills in your home, the total cost of stone sills can be quite high.

If you are looking for reliable and inexpensive window sills, the best option is to go with PVC window sills as they are waterproof, simple to install and maintain, and available in many different colors and styles.

Should I install stone window sills myself?

A: If you have natural stone windows inside your home that need replacing, you'll have an expensive job to complete. You will not be able to accomplish this task alone. You'll have to hire a professional bricklayer to do the job for you, and this type of work doesn't come cheap.

Q: Can you fix the window sill that is rotten?

A: It will depend on the size of the decay. If small spots of rot are found, you can usually repair them using an epoxy patch kit. However, if more than 10 percent or so of the window sill begins to rot, then the entire window sill needs to be replaced.

Q: How can I tell if my window sill needs repair or replacement?

The first thing you should look out for is any signs of rot or rot on your windowsill.

This could indicate a problem that requires repair, repair or replacement. If you are experiencing moisture or water issues inside your home, it could be a sign of problems with your windowsills.

Q: What is one aspect of window sill repair?

Answer: There are many ways to fix an unintentionally broken window sill. The procedure used will be based on the problem. A trained repair specialist will scrape the rotten surface off the back of the wood.

They then carefully fit the new piece of wood into place. It is possible to reinforce the corners of a window sill with stainless steel corner braces.

If there are problems with the joints of the window sills, they can be repaired when necessary.

Question: What would it take to complete the window sill repair instead of replacing it?

A: The time it takes to complete your window sill repair will depend on the issue with your window sill.

Also, it will depend on whether the window sill can be repaired on site or if it needs to be removed and repaired off site.

If you are only looking for minor windowsill repairs, repairs can take anywhere from 30 minutes to 1 hour. The more extensive the damage, the longer the repair will take.




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