Basement Conversion in Wandsworth

Discover Basement Conversion Prices in Wandsworth

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Average Basement renovation cost in Wandsworth

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 2025

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 Wandsworth, as reported by local LeadsDoWork members.

Basement renovation installation cost in Wandsworth 2025

Labour cost £28,000
Material cost £10,000
Waste removal £2,000
Time frame: 1-6 months

Basement renovation searches in January 2025

Basement renovation Projects in Wandsworth in December 2024

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Requests for quotations in Wandsworth in December 2024

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Requests for Basement renovation quotations in Wandsworth in December 2024. 0% change from November 2024.

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Requests for Basement renovation quotations in London County in December 2024. 0% change from November 2024.

Source: Numbers calculated based on the search volumes in major search engines

Basement renovation searches in cities and towns near Wandsworth December 2024

Wandsworth

The London Borough of Wandsworth is a London borough in England, and forms a part of Inner London. The borough borders the London Borough of Lambeth to the east, the London Borough of Merton and also the Royal Borough of Kingston Upon Thames towards the south, the London Borough of Richmond upon Thames to the west and towards the north, across the River Thames, 3 boroughs, namely the London Borough of Hammersmith and Fulham, Royal Borough of Kensington and Chelsea along with the City of Westminster.

It covers an overall area of about 13.23 square miles. In accordance with population estimates produced in the middle of 2014, the borough features a permanent population of around 312145 individuals. You will find numerous new or refurbished buildings along the borough's prosperous riverside such as the substantial Chelsea Bridge Wharf.

The Peace Pagoda, one of many such international Pagodas is in Battersea Park, a sprawling rectangle often hosting circuses next to the Thames. The London Heliport, London's most important and busiest heliport is just beyond Battersea Park and south of this is New Covent Garden Market. In Old Battersea two masonry mansions survived The Blitz, Old Battersea House and Downshire House, both of which hold the uncommon Grade II* status.

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Basement renovation pros in Wandsworth

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
5

Conversion | Basement in London

Very friendly and helpful.

Similar Customer Enquiries for Basement renovation in Wandsworth

01 Sep

Conversion | Basement

London - SW17

Enquiry from: Ben M

Start Date: Immediate

Basement window installation.

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21 Oct

Conversion | Basement

London - SW4

Enquiry from: William F

Start Date: Immediate

Damp identified on lower ground floor. Front to back, including from water ingress from recent downpour/flooding in the area. Rectification, damp proofing and sump required - for long-term fix. Area ...

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17 Feb

Conversion | Basement

London - SW6

Enquiry from: Lucia L

Start Date: Immediate

I would like a price quote for doing basement extension

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18 Dec

Conversion | Basement

London - SW16

Enquiry from: Giselle S

Start Date: Less than one month

make an existing 32sq m basement waterproof, add a light well, and convert into x2 bedrooms and a bathroom are you the property owner: owner of the property property type: detached how many rooms are...

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04 Oct

Conversion | Basement

London - SW4

Enquiry from: Darren K

Start Date: 1 to 3 months

basement bathroom and utility area. floods after consistent heavy rain as a result of high water level. dont believe original work was to highest standard. time scale: 1-3 months please call to appoin...

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02 Oct

Conversion | Basement

London - SW11

Enquiry from: Alice T

Start Date: 1 to 3 months

Basement conversion quotations Time scale: 1-3 months Please call to appoint Time scale: 1-3 months Please call to appoint

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23 Sep

Conversion | Basement

London - SW16

Enquiry from: Jonathan B

Start Date: 1 to 3 months

Hi, I'd like to enquire about converting our basement into a habitable space. Please see our flat just before we bought it last year on the following link: https://www.purplebricks.co.uk/prop...

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01 Feb

Conversion | Basement

London - SW18

Enquiry from: Leila M

Start Date: Less than one month

To remove and replace flooring in cellar. To remove skirting boards and replace with new. Paint and decorate walls. Time scale: Less than one month Please call to appoint

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24 Nov

Conversion | Basement

London - SW16

Enquiry from: Jenny K

Start Date: 1 to 3 months

Make basement from existing cellar with 1.6 m head height, Size 26 foot by 12 foot. Make entrance under existing bay window. To include small bathroom. Good quality finish Time scale: 1-3 months

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25 Oct

Conversion | Basement

London - SW15

Enquiry from: Tony C

Start Date: Immediate

quote for a basement floor

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24 Aug

Conversion | Basement

London - SW16

Enquiry from: Shah H

Start Date: Immediate

We like to have a new build basement with 2/3 bedrooms living room, kitchen, bath in a mid terrace house

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09 Aug

Conversion | Basement

London - SW6

Enquiry from: Surinder K

Start Date: 1 to 3 months

basement conversion. Almost the same as a neighboring property.

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07 Apr

Conversion | Basement

London - SW15

Enquiry from: Moira B

Start Date: Immediate

Basement and house refurbishment

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09 Oct

Conversion | Basement

London - SW16

Enquiry from: MIRKO B

Start Date: Immediate

To convert a 30 square meter basement (currently used as a cellar) into no.2 bedrooms and no.1 bathroom. It is an open space, 1.50m in height (requiring excavation to achieve a standard ceiling height...

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12 Aug

Conversion | Basement

London - SW12

Enquiry from: M B

Start Date: Immediate

Big out exisitng basement to become livable area, with en suite and utility area. I have architectural plans I could send you? Structural engineer drawings will be available in 2 weeks

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22 Feb

Conversion | Basement

London - SW6

Enquiry from: Anne H

Start Date: 1 to 3 months

conversion of basement from coal shoot (currently housing washing machine, dryer and freezer) into 1 bed, ensuite bathroom, utility room and open space for kids room Homeowner Please contact to ap...

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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.

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.

Does a converted basement need windows?

Windows or lightwells can be a great way to introduce natural light into your basement, making it a more valuable, enjoyable space. However, they’re not always an essential requirement.

It’s important for your basement conversion to meet ventilation and fire safety building regulations. Windows can be a good way to do this, but they’re not the only option. Stack or mechanical ventilation, or ensuring that stairs up from your basement connect to an exit can be a good alternative.

So, while windows can be a great asset to your basement conversion, if you can’t afford them or they’re not structurally feasible, you can still create a basement conversion without them.

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.

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Customer Reviews

Overall rating:


Wandsworth Basement renovation installers are rated 4.4 out of 5 based on 9 reviews of 124 pros.
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 Wandsworth Basement renovation contractors

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