Basement Conversion in Kent

Discover Basement Conversion Prices in Kent

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Average Basement renovation cost in Kent

Basement conversions fluctuate in cost depending on project scale, professionals hired and location. If your basement conversion doesn’t need any construction work, then it should cost relatively little. However, the majority of projects at least need damp proofing and water proofing work, if not insulation, heating, electrical work and more. This means that even smaller basement conversion projects are still relatively expensive. The average UK cost ranges from £30,000 - £50,000.

Average price per Basement renovation job in 2026

Avg. price low

Avg. price low
£30,000

Avg. price

Avg. price
£40,000

Avg. price high

Avg. price high
£46,000

£46500

£34875

£23250

£11625

£0

Prices based on actual Basement renovation costs for Kent, as reported by local LeadsDoWork members.

Basement renovation installation cost in Kent 2026

Labour cost £28,000
Material cost £10,000
Waste removal £2,000
Time frame: 1-6 months
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Basement renovation on Google in Kent

Google searches that showed Local Quotes, 17 July to 14 October 2026

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Searches that showed one of our pages for Kent, all services

Source: Google Search Console, the number of times our pages appeared in Google search results. It counts searches that showed the page, not quote requests.

Basement renovation searches near Kent, 17 July to 14 October 2026

2

Searches that showed our page for Orpington

Kent

Kent is sometimes known as the Garden of England and boasts a population of 1.6 million. This makes it the seventh biggest district in Britain for population size and despite this, only has a density of 1,170 people per square mile. Kent is found in the southeast of England, with Canterbury its only city. Additional significant towns in the county include Maidstone, Dover and Folkestone, with the unitary district of Medway included as well within the county. For all of your home improvements, make sure you compare quotations from trustworthy companies in Kent to get the right price for the project.

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Basement renovation pros in Kent

Nicholas James Construction

7 review(s)
Based: in Bromley, BR1 3AX

From past fifteen years we have been established as the finest building and construction service provider to clients in Bromley and its surrounding areas.

Latest review

Cosima R., SE13
29th January 2016
5

Basement Conversion in London

Very friendly and helpful.

Similar Customer Enquiries for Basement renovation in Kent

18 Aug

Basement Conversion

Deal - CT14

Enquiry from: Ben T

Start Date: Immediate

Conversion of former beer cellar including damp proofing, some structural works (structural engineer's survey completed and report available), with a view to creating a utility room, bathroom and game

Post a similar request >

08 Jan

Basement Conversion

Tunbridge Wells - TN2

Enquiry from: Paula T

Start Date: Immediate

There is a victorian basement under half the building, which collects water and then drains again (up to half an inch). The floor and walls are brick. It is not inhabited. It causes moisture in the fl

Post a similar request >

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FAQs

How to convert a basement into living space?

The best way to go about converting a basement depends on its current condition and what you’d like to use it for.

If you’re happy with its size and structure, and just want to turn it into useful storage space, then your project shouldn’t be too complicated. You’ll simply need to make sure it’s damp proof and waterproof – either by fitting tanking or a cavity drain membrane with a sump and pump. You may also need to invest in new flooring, fit basic lighting, and plaster and paint the walls and ceiling.

If you’d like to turn your basement into living space, then you’ll need to think about ventilation, insulation and heating. If this involves creating a kitchen or bathroom, you’ll also need to incorporate plumbing.

If you want to extend your basement, add lightwells, or fit windows and a sunken garden, this makes things much more complicated. You’ll probably want to hire an architect or basement conversion building specialist to help you with the design and planning, and you’ll need a structural engineer to help you ensure your property is sufficiently supported.

How to convert a basement into an apartment?

In some cases, it’s possible to convert a basement into an apartment. This can be a great way to incorporate an additional dwelling into your property and increase its value. However, converting a basement into an apartment can be quite expensive and time-consuming.

As with any type of dwelling, you’ll need to think about basic things like access, damp proofing, ventilation, insulation, heating, electrics, plumbing, lighting and décor. If you’re planning on extending your basement, then you’ll also need to ensure that your property is sufficiently supported.

It’s a good idea to consult a professional, like a basement conversion building specialist, to find out how feasible your project is before you go ahead with it.

Is a basement conversion worth it?

Whether a basement is worth converting depends on your location and how much work it requires.

A basement conversion can be a great way to add space to your home, and can raise your property value. However, it can also be one of the most expensive ways to do this, so if there’s a possibility to extend your property, or convert a loft or garage, it’s worth considering this first.

You should also compare how much your basement conversion will cost with the amount it could raise your property value by. In some areas, a quality basement conversion could earn you money in the long run, but in others it’ll only cost you. If you’re planning on staying in your property for a long time this might not matter to you, but if it’s not your forever home then it’s an important thing to think about.

Are pumps used for basement conversions noisy?

If your basement has a cavity drain membrane, it’ll need a pump to move water away from the exterior of your basement and prevent flooding.

Sump pumps can be noisy, but they don’t have to be. Generally, if you have a well-designed pump that’s installed correctly, you shouldn’t find it a problem. For best results, hire a skilled, experienced professional to supply and install your drainage system.

Basement renovation

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Kent Basement renovation pros are rated 4.3 out of 5 on average: 12 rated pros, 62 reviews, of 73 pros covering the area.
The LeadsDoWork rating and review is an overall rating based on verified reviews and feedback from the customers with Basement renovation projects that have been connected with Basement renovation pros to help them. All Basement renovation contractors All Kent Basement renovation contractors

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