Loft Conversion in Wandsworth

Get Loft Conversion Prices in Wandsworth

Home > Loft Conversions Projects > Loft conversion > Wandsworth

Average Loft conversion cost in Wandsworth

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
£31,250

Avg. price

Avg. price
£50,000

Avg. price high

Avg. price high
£67,917

£68500

£51375

£34250

£17125

£0

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

Loft conversion installation cost in Wandsworth 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 Wandsworth in May 2026

0

Requests for quotations in Wandsworth in May 2026

0

Requests for Loft conversion quotations in Wandsworth in May 2026. 0% change from April 2026.

5,400

Requests for Loft conversion quotations in London County in May 2026. 0% change from April 2026.

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

Loft conversion searches in cities and towns near Wandsworth May 2026

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 towards the east, the London Borough of Merton and the Royal Borough of Kingston Upon Thames to 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 and the City of Westminster.

The local authority is Wandsworth London Borough Council. As outlined by population estimates created in the middle of 2014, the borough has a permanent population of about 312145 individuals. You'll find several new or refurbished buildings along the borough's prosperous riverside like the large Chelsea Bridge Wharf.

The Peace Pagoda, one of several such international Pagodas is in Battersea Park, a sprawling rectangle often hosting circuses next to the Thames. The London Heliport, London's primary 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 rare Grade II* status.

Looking for Loft conversion in Wandsworth?

Get free quotes from local builders

Get free quotes

Loft conversion pros in Wandsworth

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 Wandsworth

02 Jul

Conversion | Loft

London - SW4

Enquiry from: James C

Start Date: Immediate

converting an existing atic extension into a dormer extension with a terrace

Post a similar request >

09 Jan

Conversion | Loft

London - SW18

Enquiry from: Andrew M

Start Date: Immediate

have an existing loft conversation with dormer roof facing the back of the house, would like to extend the existing dormer out 1.5m full width to new permitted development hip to gable are you the pro...

Post a similar request >

25 Oct

Conversion | Loft

London - SW17

Enquiry from: Patel C

Start Date: Immediate

homeowner loft conversion please call to appoint

Post a similar request >

19 May

Conversion | Loft

London - SW17

Enquiry from: Josephine S

Start Date: Immediate

Standard velux loft conversion with an ensuite

Post a similar request >

15 May

Conversion | Loft

London - SW19

Enquiry from: Lara V

Start Date: Immediate

i am looking to extend my loft to create a dormer, to allow for more space and flatten the roof. i am also looking to possibly make the kitchen a bedroom and bring the kitchen up to the loft for a lou...

Post a similar request >

28 Feb

Conversion | Loft

London - SW16

Enquiry from: Ben W

Start Date: Immediate

looking to get some wooden stairs fitted into the loft. currently i have a ladder which needs pulling down. there is currently an old inbuilt cupboard which the stairs would replace to get into the cu...

Post a similar request >

22 Jan

Conversion | Loft

London - SW8

Enquiry from: JD L

Start Date: Immediate

i have an existing loft conversion. i am looking to add a dormer to get full height on the total surface of the conversion. are you the property owner: owner of the property property type: other what ...

Post a similar request >

07 Nov

Conversion | Loft

London - SW17

Enquiry from: Katie F

Start Date: Immediate

a a dormer loft conversion - 2 bedrooms and a bathroom and a small roof terrace. are you the property owner: owner of the property property type: terrace what are you looking to convert the space in...

Post a similar request >

20 Oct

Conversion | Loft

London - SW4

Enquiry from: Cameron S

Start Date: Immediate

existing loft conversion. quote to expand dormer window, similar to neighbours, from circa 1meter wide to 2meters are you the property owner: owner of the property property type: terrace what are you ...

Post a similar request >

09 Aug

Conversion | Loft

London - SW16

Enquiry from: Paul I

Start Date: Immediate

customer made enquiry for loft conversion quotes online. confirmed via sms at 18:22 confirmed interest via phone at 18:23 homeowner lives in london area. please call to arrange appointment are you th...

Post a similar request >

04 Aug

Conversion | Loft

London - SW11

Enquiry from: Margaux G

Start Date: Immediate

I am interested in building into the loft to create a 3rd bedroom and bathroom. We are in the process of buying a flat, and it has the exact same layout as this one next door, and they have already do...

Post a similar request >

20 Jun

Conversion | Loft

London - SW17

Enquiry from: Graham D

Start Date: Immediate

loft stairs from *** floor landing to the loft cavity

Post a similar request >

04 Feb

Conversion | Loft

London - SW4

Enquiry from: Edward S

Start Date: Immediate

property owner loft conversion please call to appoint

Post a similar request >

28 Jan

Conversion | Loft

London - SW4

Enquiry from: Edward S

Start Date: Immediate

Converting a currently unused, uninsulated loft which is very low into a space that is big enough to use as a bedroom with ensuite bathroom.

Post a similar request >

14 Oct

Conversion | Loft

London - SW18

Enquiry from: Camilla H

Start Date: Immediate

stairway to third floor, including a new opening to the loft area through the current ceiling. are you the property owner: owner of the property property type: terrace what are you looking to convert ...

Post a similar request >

11 Oct

Conversion | Loft

London - SW8

Enquiry from: Fatima T

Start Date: Immediate

urgent face to face quote required for attic conversion on a property in south london are you the property owner: owner of the property property type: terrace what are you looking to convert the space...

Post a similar request >

08 Sep

Conversion | Loft

London - SW11

Enquiry from: Raj C

Start Date: Immediate

i’m looking to have mansard loft,looking to get quote so i can plan to start work. thanks. are you the property owner: relative of owner property type: terrace what are you looking to convert the sp...

Post a similar request >

01 Jun

Conversion | Loft

London - SW16

Enquiry from: Angela A

Start Date: Immediate

Hip to Gable loft conversion - one bedroom with en-suite 2 small study/office areas

Post a similar request >

08 Apr

Conversion | Loft

London - SW18

Enquiry from: Claire C

Start Date: Immediate

loft pod bathroom on rear sloped roof to be lined to the existing dormer loft extension are you the property owner: owner of the property property type: terrace what are you looking to convert the sp...

Post a similar request >

15 Jan

Conversion | Loft

London - SW17

Enquiry from: Razia K

Start Date: Immediate

Customer visited the myloftconversionprices.co.uk site and submitted an enquiry. Property type: Terrace, Property owner: Owner, Looking to convert into: Other, Work description: Turn loft unto a stu...

Post a similar request >

Local & reliable builders near me

Tell us about your loft conversion project

Answer a few quick questions, so we can match you with local builders who can help.

Find up to 4 builders in Wandsworth

Get free, no-obligation local loft conversion quotes from 4 verified builders working in Wandsworth.

Hire with confidence

Compare customer reviews, services and prices, and choose the right tradesperson for you.

Our reviews

Average

Would highly recommend

Would highly recommend, they found me a firm which I was happy with a quote they give me and went ahead and had my job done within 2 days of enquiring.

Good easy way to find a selection of…

Good easy way to find a selection of trades you need all in one place.

Love Local Quotes it's a big part of my …

Love Local Quotes it's a big part of my Business I would recommend to anyone

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!

how much is a loft conversion?

With the ability to add approximately one third of your existing living space ( by converting your old, unused attic) to your home or property without having to let go of your garden, it’s quite easy to see the reason why loft conversion has rapidly grown to become one of the most popular home improvements in the UK. However some homeowners usually shy away from the idea simply by looking at the perceived high cost of carrying out such a project, despite several researches showing that loft conversions offers the best rate of return on initial investment when compared to the other home improvement projects. So exactly how much would it cost to carry out this project?

Just like several other home improvement projects, the cost of a loft conversion varies greatly depending on a wide range of influencing factors. These factors include the size of your home, how old your home is as well as the quality of the fixtures and fittings you want to install. For instance, a high end bathtub alone can cost you thousands of pounds, meanwhile you can also construct a full bathroom suite on just a couple of hundred pounds. However, to give you an idea of the minimum cost of a loft project we’ll look at the most popular types and the minimum cost of each.

✓ Internal Loft Conversion - The most affordable type of loft conversion tends to start from £25,000 and above.

✓ Dormer or L-Shaped Dormer Loft Conversion. These are the most popular types of loft conversion. Dormer price tends to start from £35,000, while the L-shaped dormer starts from £45,000.

✓ Mansard Loft Conversion - This involves replacing the entire side of a sloping roof with a vertical wall and flat roof. It requires a planning permission. The type of loft conversion usually starts from £45,000.

✓ Hip To Gable Loft Conversion - This usually starts from £50,000.

what is a dormer loft conversion?

A dormer loft conversion is a type of loft conversion that’s built making use of a roof’s existing slope. In other words, it’s an existing roof’s extension which is constructed in such a way that allows for an additional floor as well as head room especially suitable for lofts lacking good amount of usable space. The dormer loft conversion is simply an addition to the existing roof looking much like a box-like build constructed onto a pitched roof as it creates walls that are vertical to the slope while also being 90 degrees to the floor.

This type of loft conversion is the most common amongst homeowners in the UK mainly because it represents a cost effective means through which you can add an additional usable space to your home or property. The structure extends for the slope of the existing roof and can easily be altered to suit various tastes or styles. Furthermore, if you’re looking for a type of loft conversion that aids to foster reduced disruption to work, then dormer loft conversion is also your best bet. This is due to the fact that the structure is built from a scaffolding made outside a home.

There are different types of dormer loft conversion and the one which will best suit your property will depend on the property type, be it detached, semi detached or terraced as well as the existing roof shape and size. The dormer loft conversion is a popular choice for a lot of homeowners for a variety of reasons. Let’s have a look!

✓ It’s very cost effective

✓ The dormer loft conversion does not require planning permission so far it complies with certain conditions and limitations

✓ It adds an extra headspace as well as floor space.

how long does a loft conversion take?

If you’re about to carry out a loft conversion project, you’d probably be wondering how long it’ll take to complete the task. Well, you’re not alone! This is one of the most common questions when it comes to loft conversion projects, however, providing a set timeframe for completion of such projects is impossible as all loft conversions vary. There are different factors that can determine the duration of your project. These factors include, the materials to be used, the type of the proposed loft conversion, the kind of staircase you’ll like to have installed, the number of windows included, the number of rooms to be added as well as a number of other influencing factors. As a result of these variables, the milestones and timings provided are only to be taken as guidelines. If you’d really like to have a set date, you can get in touch with a professional for help.

Generally, it’ll take up to 8 weeks to complete a loft conversion project.

✓ The first week activities will include putting up scaffolding, receiving the first materials for the build and creating an opening in the roof to gain access to the loft space.

✓ In the second week, the structure of the roof will be ammended and more support added.

✓ Third week, the floor joists will be fitted, building of the loft conversion will start, completion of the external roof works and commencement of plumbing and electric works.

✓ Fourth week, complete the building, construct the loft floor, fit the roof windows, insulation, ventilation and internal stud walls.

✓ Fifth week, apply plaster and plasterboard to the room walls, create a staircase opening and fit the new staircase.

✓ Sixth week, plaster the staircase area, complete plumbing and electrical works, hang the doors, fit skirting, handrails and bannisters and start decoration.

✓ Seventh week, complete the decoration and clean and wipe out all wastes.

✓ Eight week, complete all the remaining tasks.

Loft conversion

Other Top Projects in Wandsworth

Customer Reviews

Overall rating:


Wandsworth Loft conversion installers are rated 4.2 out of 5 based on 12 reviews of 122 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 Wandsworth Loft conversion contractors

Are you a builder in Wandsworth?

We can help you get more loft conversion work with our qualified job leads and boost your business.

Join today