How much do kitchen extensions cost?

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Many homeowners have kitchen extensions built, to extend their kitchen to other rooms in their home, to make the kitchen bigger. The space can often be used for extra guests, or for your teenagers to hang out in during the school holidays.

It’s an ideal way to make your kitchen more functional, and to make it a more useful space in your home. However, many homeowners have never really considered how much it could cost to have a kitchen extension built.

Before you decide to have a kitchen extension built, you need to consider how much the project will cost. Here are the costs that you may incur

The costs of building a kitchen extension

A kitchen extension can cost anywhere from £4,000 to £8,000 depending on what’s included in your contract. However, the first time you carry out a kitchen extension you may pay a certain percentage of the total costs. For instance, for a kitchen extension costing £4,000, you may pay 25% of the total cost.

A kitchen extension can take between two to three months to build, so you will need to let your contractor know what works best for you. A kitchen extension can take up to two months to build, so you will need to let your contractor know what works best for you

Installation of your kitchen extensions Installation of your new kitchen is generally the most expensive part of the project. That’s not just because of the materials you may need to use, but also because of the amount of time you will need to spend at the site of your extension.

Make sure that you take the time to plan out how long the project is going to take, so you know how much you can budget. Depending on the scope of the extension, you could be looking at a substantial sum for the total installation. To do the work yourself If you’re prepared to do the work yourself, it could be possible to get some of the costs down.

The costs of materials

Costs for materials can be quite a significant part of the overall cost of having a kitchen extension built. Take kitchen units for example. A new kitchen unit could cost a couple of thousand pounds. However, if you have extra space in your kitchen, you may decide that you could sell or rent the extra space out, to make the overall cost less. But, if you are planning to make your extension a permanent home, you may prefer to put in materials that you won’t have to replace again and again. If you want a solid timber kitchen unit, the cost of a solid timber unit can cost anything from £1000 upwards. Rug and carpeting costs Both rugs and carpets can add a lot of value to your new kitchen extension.

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The cost of having a kitchen extension fitted

The price of having your kitchen extension fitted will depend on the size of the extension, and what the work will involve. The biggest costs are likely to be in labour costs. The cost of a kitchen extension depends on how many doors and windows need to be replaced as well as new worktops, so calculate the cost of all the work that needs to be done.

Not everyone is going to need such a large extension, but do you really need to add an extra floor space to your kitchen? You’ll also need to consider the cost of providing the lift and sanitary facilities, as well as additional lighting and electrical sockets. If you want a stainless steel or stone kitchen extension, you will also need to plan the costs of granite, engineered wood or all-natural slate. Is a kitchen extension a must?


The costs of kitchen extensions can vary depending on the size of the space that you want to expand into, the work that needs to be done, and how much it needs to be renovated. It may be better to save your money and upgrade your existing kitchen, instead. With a good planning team, and some clever ideas, you could be saving yourself hundreds of pounds by doing things the old fashioned way.

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