Loft Conversion in Thornton Heath

Compare Loft Conversion Prices in Thornton Heath

Home > Loft Conversions Projects > Loft conversion > Thornton Heath

Loft conversion companies in Thornton Heath

Are you thinking of a loft conversion so as to open space in your home and steer clear of the requirement to move? Then make use of our no cost and simple service to compare prices and get the very best cost for the work you need carried out.

Loft conversions are proving to become more and more popular in the UK. In most properties the loft space accounts for unused space which could be put to better use. Converting can transform the area into a bedroom, bathroom, playroom or maybe ensuite bedroom.

In fact there's plenty of potential to converting your loft, including the added value for your own home which may be up to 20%. Loft conversions are also advised over a house extension as the infrastructure is already in place. Additionally, you won't be taking away any garden space.

If a loft conversion would benefit your house and you're interested in more room, look at quotes from trustworthy companies within Thornton Heath and get the best offer for the work you would like completed.

Average Loft conversion cost in Thornton Heath

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 Thornton Heath, as reported by local LeadsDoWork members.

Loft conversion installation cost in Thornton Heath 2026

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

Loft conversion on Google in Thornton Heath

Google searches that showed Local Quotes, 18 July to 15 October 2026

1,835

Searches that showed one of our pages for Thornton Heath, all services

94

Searches that showed our Loft conversion page for Surrey

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.

Thornton Heath

Thornton Heath is a district of Southern London inside the Borough of Croydon and features a populace well over 50,000. It's near other significant towns such as Croydon, Mitcham, Norbury and South Norwood. For household developments you may want within Thornton Heath, ensure to exclusively work with vetted and trustworthy companies in the area to be sure a great price and fantastic finish for the work.

Looking for Loft conversion in Thornton Heath?

Get free quotes from local builders

Get free quotes

Loft conversion pros in Thornton Heath

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

Loft Conversion 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

Loft Conversion 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

Loft Conversion 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

Loft Conversion 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

Loft Conversion in Isleworth

Waiting for the appointment

Similar Customer Enquiries for Loft conversion in and around Thornton Heath

29 Sep

Loft conversion

London - SW16

Enquiry from: Katherine S

Start Date: Immediate

Need a set of stairs up to attic full install. would like the stairs to be the right size and height that would allow the attic to act as a second bedroom

Property: detached

Post a similar request >

15 Jul

Loft conversion

Wembley - HA9

Enquiry from: Esther K

Start Date: Immediate

I am planning to convert loft into office space. Need to install stairs to loft. Thank you. Esther

Post a similar request >

11 Jun

Loft conversion

Mitcham - CR4

Enquiry from: Matthew R

Start Date: Immediate

Plaster boarding out wall /Ceiling flooring etc etc

Post a similar request >

04 Mar

Loft conversion

Mitcham - CR4

Enquiry from: Shedley R

Start Date: Immediate

Need a loft conversion to finish plaster boards out ceiling and flooring including toilet to complete

Post a similar request >

24 Feb

Loft conversion

London - SE23

Enquiry from: Maria B

Start Date: Less than one month

Roof: pitched · Property: terrace · Built: 1900-1930 · Height: 3rd floor+

Post a similar request >

09 Feb

Loft conversion

London - E6

Enquiry from: Purie B

Start Date: Immediate

Need to put stairs to loft

Post a similar request >

31 Oct

Loft conversion

New Malden - KT3

Enquiry from: Murugathas S

Start Date: Immediate

Loft conversion enquiry

Post a similar request >

29 Oct

Loft conversion

London - N2

Enquiry from: Shimon S

Start Date: Immediate

Property: terrace

Post a similar request >

29 Oct

Loft conversion

London - SE18

Enquiry from: Adeyinka O

Start Date: Immediate

Loft conversion enquiry

Post a similar request >

25 Oct

Loft conversion

London - SE20

Enquiry from: Hayelom T

Start Date: Immediate

Loft conversion enquiry

Post a similar request >

22 Oct

Loft conversion

London - SE18

Enquiry from: Natalia B

Start Date: Immediate

Property: semi detached

Post a similar request >

21 Oct

Loft conversion

London - E10

Enquiry from: Mxlik M

Start Date: Immediate

Property: semi detached

Post a similar request >

20 Oct

Loft conversion

London - E6

Enquiry from: Anmar H

Start Date: Immediate

Loft conversion enquiry

Post a similar request >

18 Oct

Loft conversion

Bromley, Keston - BR2

Enquiry from: Augustine E

Start Date: Immediate

Loft conversion enquiry

Post a similar request >

14 Oct

Loft conversion

Thornton Heath - CR7

Enquiry from: Patrick W

Start Date: Immediate

Loft conversion enquiry

Post a similar request >

12 Oct

Loft conversion

Barking - IG11

Enquiry from: Luthfur M

Start Date: Immediate

Property: terrace

Post a similar request >

12 Oct

Loft conversion

London - W3

Enquiry from: Ozzie R

Start Date: Immediate

Loft conversion enquiry

Post a similar request >

11 Oct

Loft conversion

London - SE28

Enquiry from: Nabil M

Start Date: Immediate

Loft conversion enquiry

Post a similar request >

11 Oct

Loft conversion

Wembley - HA0

Enquiry from: Darrell M

Start Date: Immediate

Property: terrace

Post a similar request >

Advertisement

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 Thornton Heath

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

Hire with confidence

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

Our reviews

Average

So quick! Amazing!!

So quick! Amazing!!

because you found me a quote

because you found me a quote

It was very helpful finding the rig ...

It was very helpful finding the right people close to home

FAQs

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

how disruptive is a loft conversion?

Asides the questions relating to planning permission of a loft conversion as well as the total cost of completing a loft conversion project, this is perhaps the most common question on the loft conversion subject matter. Before making an investment decision, many homeowners will want to know just how disruptive a loft conversion is. Well, we’ve all heard the several horror stories when loft conversion builder with dirty boots tramples all over the fresh and just-acquired shag pile or the noise of the construction loud enough to annoy neighbours from four blocks away or an obvious shortage of teabags, sugar and lots more. Good news is, the disruption of loft conversion is not as bad as people make out. Let’s have a look at how it works!

Just like all other major building projects, a loft conversion is disruptive to your property. However, no two loft conversions are the same, therefore some are certain to be more drastic and invasive than others. In the long run, the project is worth the stress and inconveniences caused and in most cases, it’s usually a very good investment.

Normally, an average loft conversion is expected to last for about 9 to 12 weeks (depending on the complexity of the loft conversion project some might take longer). Some of the factors that affects the duration of a project includes the type of the loft, the design of the loft as well as the style of the property.

Generally, a loft conversion is a lot less disruptive than say completely moving a home. It all has to do with how you’re able to deal with it as a person. And besides, the effect it’s going to have to a large extent depends on the company you hire. A good company will always look to ensure to keep disruptions to a minimal when carrying out the loft conversion project.

what is a hip to gable loft conversion?

This is a type of loft conversion that extends your roof on the sloping side. It is a great option to go for especially where a hipped roof effectively makes the usable floor area a lot smaller which can be a tricky affair when it comes to putting in a new staircase. Here, the roof is extended from the current ridge in such a way that it effectively fills the gap between them. As a result, this turns the hip (in a hipped roof) into a gable to create space in your roof for a loft conversion - hence the name “hip to gable.

The new gable can be done in whatever way that suits both your taste as well as your property. You can make the new gable construction in woods and then tiled to match your existing roof while you can also go for other options such as brick block pebbledash or rendering. You are also free to fit in a new window into the loft conversion end so as to allow for natural light into the loft space.

A hip to gable loft conversion is mostly found on both semi detached and end terrace buildings, particularly those constructed in the 1930s. Overall, this type of loft conversion is particularly ideal for homes that features a hipped roof and with a sloping roof at the side of the property. Some detached properties can also possess a hipped roof on the side - and as such, a double hip to gable loft conversion can also be deal as it’ll create more loft space for usage. If your home fits into the bill, then you should be aware that once the project is completed, you’ll have plenty of usable space available to both you and your loved ones.

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.

Loft conversion

Other Top Projects in Thornton Heath

Are you a builder in Thornton Heath?

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

Join today