Loft Conversion in Carshalton

Get Loft Conversion Prices in Carshalton

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Loft conversion companies in Carshalton

Searching for attic room alteration consultants in Carshalton? Our loft space conversion renovators in Carshalton will be able to supply you the best quotations to have a loft converted in your household.

The installation of a loft space extension in your home can be performed quickly, enabling you to make full use of the converted room and start benefitting from an additional room. The loft area alteration will be carried out by a vetted, certified company and as soon as this has been completed you'll be in a position to start using the new location right away. With your newly altered attic room you'll be able to have an extra bedroom, study or possibly a rec room.

With a wide range of loft transformation styles and designs you'll be ready to come across something that fits your taste, whilst being suitable and eye appealing.

We'll give you no obligation quotations from loft space conversion companies in Carshalton who will be able to supply you with free of charge surveys and quotations on your alteration. You can then do a comparison of these loft conversion costs and make certain to get the best bang for your buck.

Average Loft conversion cost in Carshalton

The regular cost of a Loft conversion is £25000. Costs differ based upon the materials and the firm selected. The upper price range can be as high as £28750. The material costs are mainly approximately £6250

Average price per Loft conversion job in 2026

Avg. price low

Avg. price low
£29,688

Avg. price

Avg. price
£47,500

Avg. price high

Avg. price high
£64,688

£65200

£48900

£32600

£16300

£0

Prices based on actual Loft conversion costs for Carshalton, as reported by local LeadsDoWork members.

Loft conversion installation cost in Carshalton 2026

Labour cost £17,500
Material cost £6,250
Waste removal £1,250
Time frame: 6-12 weeks

Loft conversion searches in June 2026

Loft conversion Projects in Carshalton in May 2026

2,979

Requests for quotations in Carshalton in May 2026

46

Requests for Loft conversion quotations in Carshalton in May 2026. -10% change from April 2026.

650

Requests for Loft conversion quotations in Surrey in May 2026. -10% change from April 2026.

We noted 2,979 requests for house quotations in Carshalton. Of these quote requests the number of loft conversion quotes in Carshalton was 46. Quotatis would have been in a position to match these consumers with as many as 4 suitable fitters who were available for work in Carshalton during those times. Ask for a free home survey from trustworthy companies in Carshalton.

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

Loft conversion searches in cities and towns near Carshalton May 2026

101

Requests for quotations in Morden in May 2026

46

Requests for quotations in Carshalton in May 2026

20

Requests for quotations in Sutton in May 2026

10

Requests for quotations in Banstead in May 2026

10

Requests for quotations in Wallington in May 2026

Carshalton

Carshalton is a suburban area in the London Borough of Sutton and is located near the River Wandle. Five wards form the Carshalton area, having a full population to 45,525 and the region is located towards the south west of Greater London. For all property or home enhancements you're thinking of, ensure to do a comparison of quotations between vetted businesses close to you and get the best price for your upcoming project.

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Loft conversion pros in Carshalton

Dream the Build

19 review(s)
Based: in London, EC1V 2NX

DREAM the Build. Ltd ' Constructing your Vision Making home development exciting, fun and asset building experience , future proofing household & investors Who we are ? Starting fresh in a new country is never easy, but what we did Catal...

Latest review

A., NW7
4

Conversion | Loft in London

Good quote

Unique Lofts LTD

2 review(s)
Based: in South mimms, EN6 3NX

Professional loft conversions at Unique Lofts, we are a specialist loft company with over 15 years of experience in construction. Call us today.

Latest review

Alan P., EN11
5

Conversion | Loft in Hoddesdon

only company that quoted

London Project Management Ltd Ta Modern Attics

1 review(s)
Based: in London, N3 2DN

Modern ATTICS specialise in loft conversions and House Extensions. We cover all areas of London - North, East, West, Central and South London.

Latest review

Helen W., NW4
4

Conversion | Loft in London

Nice guy

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

Jagdish K., HA3
5

Conversion | Loft in Harrow

A extremely thorough unhurried meeting carried out. Honest opinions and views provided. Carefully going through plans to...

A1 Forever Solutions LTD

1 review(s)
Based: in London, SE25 6EP

Latest review

Peter M., TW7
4

Conversion | Loft in Isleworth

Waiting for the appointment

Similar Customer Enquiries for Loft conversion in Carshalton

01 Jan

Conversion | Loft

Carshalton - SM5

Enquiry from: Gwyneth S

Start Date: Immediate

customer visited the myloftconversionprices.co.uk site and submitted an enquiry. property type: terrace, property owner: relative of owner, looking to convert into: bedroom, work description: creatin...

Post a similar request >

21 May

Conversion | Loft

Carshalton - SM5

Enquiry from: Anna H

Start Date: 1 to 3 months

Customer visited the myloftconversionprices.co.uk site and submitted an enquiry. Property type: Semi detached, Property owner: Owner, Looking to convert into: Bedroom, Work description: We are looki...

Post a similar request >

12 May

Conversion | Loft

Carshalton - SM5

Enquiry from: Jo P

Start Date: Immediate

Home Owner Call to Appoint

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22 Feb

Conversion | Loft

Carshalton - SM5

Enquiry from: Pauline H

Start Date: 1 to 3 months

Loft conversion Velux ordirmer windows Are you the property owner: Owner of the property Property Type: Semi detached What are you looking to convert the space into: Bedroom/s Are you looking to have ...

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31 Jul

Conversion | Loft

Carshalton - SM5

Enquiry from: Claudio J

Start Date: 1 to 3 months

Homeowner Please contact to appoint Are you the property owner: Owner of the property Property Type: Terrace What are you looking to convert the space into: Bedroom/s Are you looking to have stairs: ...

Post a similar request >

04 Jun

Conversion | Loft

Carshalton - SM5

Enquiry from: Mandy A

Start Date: 1 to 3 months

Dormer loft conversion with shower & toilet. Stairs leading off balcony to be put in. Terraced property. Need quote to find out if it is viable for us. Are you the property owner: Owner of the prope...

Post a similar request >

16 May

Conversion | Loft

Carshalton - SM5

Enquiry from: Irene P

Start Date: 1 to 3 months

Semidetached house. Loft conversion with dormer and en suit Are you the property owner: Owner of the property Property Type: Semi detached What are you looking to convert the space into: Bedroom/s Ar...

Post a similar request >

22 Mar

Conversion | Loft

Carshalton - SM5

Enquiry from: Kelton P

Start Date: Immediate

Conversion of mid-terraced loft to liveable bedroom

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11 Mar

Conversion | Loft

Carshalton - SM5

Enquiry from: Kelton P

Start Date: Immediate

Mid terraced house loft to be converted into a double bedroom with en suite. Are you the property owner: Owner of the property Property Type: Terrace What are you looking to convert the space into:...

Post a similar request >

14 Sep

Conversion | Loft

Carshalton - SM5

Enquiry from: Maria R

Start Date: Immediate

Loft extention L shape dormer to convert into 1 bedroom flat

Post a similar request >

18 Mar

Conversion | Loft

Carshalton - SM5

Enquiry from: Simeon M

Start Date: Immediate

Customer visited the myloftconversionprices.co.uk site and submitted an enquiry. Property type: Semi detached, Property owner: Owner, Looking to convert into: Bedroom, Work description: The house wa...

Post a similar request >

04 Mar

Conversion | Loft

Carshalton - SM5

Enquiry from: Eran A

Start Date: Immediate

Loft conversion for a small house.

Post a similar request >

30 Jan

Conversion | Loft

Carshalton - SM5

Enquiry from: Uzma M

Start Date: Immediate

Convert the loft into a box with two bedrooms.no toilets upstairs

Post a similar request >

03 Nov

Conversion | Loft

Carshalton - SM5

Enquiry from: Melissa M

Start Date: Immediate

- loft conversion include bathroom. - add 1no. toilet to ground floor - build summer house with skylight in the garden Are you the property owner: Owner of the property Property Type: Terrace What a...

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18 Sep

Conversion | Loft

Carshalton - SM5

Enquiry from: Paul S

Start Date: 1 to 3 months

Loft conversion with shower room / toilet if possible. Very limited space on upper landing for new staircase to loft. Are you the property owner: Owner of the property Property Type: Terrace What a...

Post a similar request >

15 Jun

Conversion | Loft

Carshalton - SM5

Enquiry from: Amanda D

Start Date: 1 to 3 months

Loft conversion with Dorma and shower room Are you the property owner: Owner of the property Property Type: Semi detached What are you looking to convert the space into: Bedroom/s Are you lookin...

Post a similar request >

05 Jun

Conversion | Loft

Carshalton - SM5

Enquiry from: Amanda D

Start Date: 1 to 3 months

Work description: convert loft to bedroom space, also if possible with eaves storage and dorma window Are you the property owner: Owner of the property Property Type: Semi detached What are you ...

Post a similar request >

16 Feb

Conversion | Loft

Carshalton - SM5

Enquiry from: S

Start Date: 3+ months

10 by 4.75 meters external dimension of the house New build(build 2012)to build two extra rooms and an ensuite Are you the property owner: Owner of the property Property Type: Semi detached What a...

Post a similar request >

13 Feb

Conversion | Loft

Carshalton - SM5

Enquiry from: S

Start Date: 3+ months

10 by 4.75 meters external dimension of the house New build(build 2012)to build two extra rooms and an ensuite Are you the property owner: Owner of the property Property Type: Semi detached What a...

Post a similar request >

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FAQs

how much value does a loft conversion add?

When its impossible to build out and create more space sideways, why can’t you look upwards? As more and more homeowners in the UK are carrying out their loft conversion project, one question that keeps popping up is the amount of value the loft conversion can add to their homes. However, this is a question that is impossible to provide a single and precise answer to. This is because the value that’ll be generated by a loft conversion is largely dependent on a wide range of influencing factors. To give you a vague idea of the loft conversion value to a property, we’ve put forward a research carried out by industry experts so you can know what you’re in for.

Nationwide carried out a research which shows clearly that a loft conversion including an additional bedroom as part of the building plan will increase a house’s value by up to 21 percent. Since the number of rooms a house has is one of the main metrics for house valuations, loft conversion comes in pretty handy as it’s a great and easy way to convert your house from a 4 bedroom house to a 5 bedroom house prior to sale.

Apart from the financial value aspect, loft conversion also adds more value to your lifestyle which is very unlike nearly other financial investments you can make. More space in your house automatically means more storage or a new room as you wish. A new room can be for a growing family or probably to serve as a guest room. It can also be used as a study space or even an office especially with the rapidly growing rate of people working from home. With loft conversion, the possibilities in terms of value are simply endless!

do you need planning permission for a loft conversion?

Typically, loft conversions do not require planning permission except in certain situations. They’re usually covered under what’s known as Permitted Development. Certain building works like loft conversion, rear extension and conservatories are granted planning permission by local authorities. Permitted Development, however, gives you a free range to improve your home without having any issues from the councils or regulations. Before your planned loft conversion can be covered under Permitted Development, there are some certain criteria that must be met. This criteria includes the following:

✓ The extension must not go beyond the existing slope of the roof at the front of the house.

✓ The loft space converted must not go beyond 40 cubic metres in a terraced house.

✓ The roof’s height must not be increased by the extension.

✓ The loft space converted must not reach beyond 50 cubic metres in a detached or semi detached house.

✓ The plan for the extension mustn’t involve structures like balconies, verandas or anything other structures of this nature.

✓ The roof extension should be positioned as far back as possible or at least 20cm from the existing eaves.

✓ The side that faces the window openings should be at least 1.7m beyond the floor and the windows should also be obscured.

✓ The roof extension must not overhang the existing roof or wall of the house.

✓ The materials that are to be used must be similar or the same to the materials that has already been used on the house’s exterior.

However, you should bear in mind that there are some properties that are exempt from Permitted Development. Examples of these type of properties include conservation areas, Areas Of Outstanding Natural Beauty and World Heritage sites. Permitted Development does not also provide coverage for listed buildings.

Can my loft be converted?

Many types of loft are suitable for a loft conversion. In general, you will need at least 2.3 metres of headroom in your existing loft. This is to make sure there is enough headroom after the conversion. Speak to a conversion specialist about the probability and possibility of doing this in your house.

How long will a loft conversion take?

It depends on the style and size of the conversion, but in general, a loft conversion will take between 1-2 months. A loft conversion is a substantial building project, and plans will need to be drawn up. This may add to the time it takes to complete your loft conversion.

Loft conversion

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Customer Reviews

Overall rating:


Carshalton Loft conversion installers are rated 4.3 out of 5 based on 11 reviews of 83 pros.
The LeadsDoWork rating and review is an overall rating based on verified reviews and feedback from the customers with Loft conversion projects that have been connected with Loft conversion pros to help them. All Loft conversion contractors All Carshalton Loft conversion contractors

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