Loft Conversion in Merton

Find Loft Conversion Prices in Merton

Home > Loft Conversions Projects > Loft conversion > Merton

Average Loft conversion cost in Merton

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 2025

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 Merton, as reported by local LeadsDoWork members.

Loft conversion installation cost in Merton 2025

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

Loft conversion searches in June 2025

Loft conversion Projects in Merton in May 2025

0

Requests for quotations in Merton in May 2025

0

Requests for Loft conversion quotations in Merton in May 2025. 0% change from April 2025.

5,400

Requests for Loft conversion quotations in London County in May 2025. 0% change from April 2025.

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

Loft conversion searches in cities and towns near Merton May 2025

Merton

The London Borough of Merton is a borough in south-west London, England. The borough was formed under the London Government Act 1963 in 1965 by the merger of the Municipal Borough of Mitcham, the Municipal Borough of Wimbledon and also the Merton and Morden Urban District, all formerly within Surrey. The borough derives its name from the historic parish of Merton, which was centred around the location now called South Wimbledon. The local authority is Merton London Borough Council.

Merton covers a total area of around 14.52 square miles. The borough is also served by numerous London Tramlink stops from Wimbledon, which goes to Croydon, New Addington, Elmers End and Beckenham. It's the only London Borough which has tube, rail and tram services.

The principle commercial centres in Merton are Mitcham, Morden and Wimbledon, of which Wimbledon is the biggest. Other smaller sized centres include Raynes Park, Colliers Wood, South Wimbledon, Wimbledon Park and Pollards Hill. Each year, Wimbledon, one of the 4 tennis Grand Slam tournaments, takes place at the All England Lawn Tennis and Croquet Club in Church Road Wimbledon. The occasion occurs over a fortnight at the end of June and start of July and it is the largest annual sporting event to take place in the United Kingdom, attracting more than 200000 guests during the Wimbledon fortnight.

Looking for Loft conversion in Merton?

Get free quotes from local builders

Get free quotes

Loft conversion pros in Merton

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 Merton

16 Jun

Conversion | Loft

Mitcham - CR4

Enquiry from: Gabriel P

Start Date: Immediate

I need staircase for loft dormer

Post a similar request >

27 Aug

Conversion | Loft

Morden - SM4

Enquiry from: Nadine L

Start Date: Immediate

customer has a loft conversions project they are looking to have done, specially they want quotes for loft conversion. they are unsure of options so would like to discuss with a builder.confirmed inte...

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 >

15 May

Conversion | Loft

Thornton Heath - CR7

Enquiry from: William B

Start Date: Immediate

customer made enquiry for loft conversion quotes online. homeowner lives in thornton heath area. please call to arrange appointment are you the property owner: owner of the property property type: te...

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 >

07 Dec

Conversion | Loft

Thornton Heath - CR7

Enquiry from: Charles Q

Start Date: Immediate

already have the loft and i want to have a new stairs instead of my old pull stairs are you the property owner: owner of the property property type: terrace what are you looking to convert the space ...

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 >

14 Sep

Conversion | Loft

Mitcham - CR4

Enquiry from: Derek P

Start Date: Immediate

we need a hip to gable dormer conversion. ouor house is semi detached with a side alley we've got engineers' calculations and drawings, a party wall agreement, architects' drawings and planning permi...

Post a similar request >

11 Sep

Conversion | Loft

Sutton - SM3

Enquiry from: JM M

Start Date: Immediate

customer in sutton area made an enquiry for loft conversion online. please call to arrange an appointment to discuss options what are you looking to convert the space into: bedroom/s are you looking ...

Post a similar request >

02 Sep

Conversion | Loft

Mitcham - CR4

Enquiry from: Derek P

Start Date: Immediate

we need a hip to gable dormer conversion. ouor house is semi detached with a side alley we've got engineers' calculations and drawings, a party wall agreement, architects' drawings and planning permi...

Post a similar request >

01 Sep

Conversion | Loft

New Malden - KT3

Enquiry from: Carina G

Start Date: Immediate

loft extension or dormer loft extension? we aren’t sure on what can be done. we have a terraced house and are looking to maximise space for our children. are you the property owner: owner of the pro...

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 >

25 Jun

Conversion | Loft

Thornton Heath - CR7

Enquiry from: Mohammad H

Start Date: Immediate

i just want a loft conversion stairs ,i plan to do a loft conversion later but at the moment just want to do the stairs are you the property owner: owner of the property property type: terrace what a...

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 >

01 Jun

Conversion | Loft

Morden - SM4

Enquiry from: Jack M

Start Date: Immediate

1 bed + 1 bath dormer loft conversion on a mid-terrace 3 bed house, alongside complete replacement of the roof structure (there is currently spray foam insulation which needs removing but which may ha...

Post a similar request >

23 May

Conversion | Loft

New Malden - KT3

Enquiry from: Liina L

Start Date: Immediate

adding a dormer on semi house side.

Post a similar request >

21 Apr

Conversion | Loft

Sutton - SM3

Enquiry from: Phil T

Start Date: Immediate

i just want to build a stairs and a window for my loft,may i have more info about it? thanks are you the property owner: owner of the property property type: other what are you looking to convert the ...

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 Merton

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

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 LeadsDoWork it's a big part of my …

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

FAQs

What kinds of loft conversion are there?

There’s a huge range of different types of loft conversions. The most common are dormer and skylight or Velux conversions. There are also hip to gable and mansard conversions. The type of loft conversion that’s most suitable for your property will depend on the style of roof and the size of your loft.

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.

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.

how much is a dormer loft conversion?

Are you considering a dormer loft conversion for your home? If yes, then you’d probably want to know how much it costs. Unfortunately, due to the several variables and influencing factors, a precise answer can not be provided for all dormer loft conversions. In this article we’ll give you a vague idea of the general cost so you can set a more realistic budget and start planning.

There are three main types of loft conversion which includes the Velux, Dormer, and Mansard. Out of the three types, the dormer happens to be the most common type and possesses a small flat roofed extension with a window. The dormer loft conversion will usually cost within the range of £25,000 to £30,000.

The price for a smaller dormer loft conversion, mid range dormer loft conversion and large scale dormer loft conversion will be at £2,000 to £7,000, £10,000 to £30,000 and £40,000 to £60,000 respectively. However, you should take note that the prices given are all based on varying influencing factors such as the type of installation that is selected, the type of the rood, en suite conversion as well as other customization. Changes in price can be as a result of the materials required and the extra time per labour that’s needed to complete this home improvement project by the tradesmen employed.

Furthermore, a dormer loft conversion average cost will also depend on the type of dormer you opt for. Here is a list of the most common applications:

✓ Blind dormer loft conversion - £3,200 to £4,400

✓ Recessed dormer - £1,300 to £1,850

✓ Barrel roof dormer - £3,000 to £4,600

✓ Gable dormer - £5,500 to £7,500

✓ Hipped roof dormer - £5,600 to £6,660

✓ Pedimented dormer - £12,700 to £23,100

✓ Flat roof dormer loft conversion - £13,800 to £21,600

Placholder Image

Other Top Projects in Merton

Customer Reviews

Overall rating:


Merton Loft conversion installers are rated 4.3 out of 5 based on 13 reviews of 169 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 Merton Loft conversion contractors

Are you a builder in Merton?

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

Join today