Loft Conversion in Northern Ireland

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Loft conversion companies in Northern Ireland

In search of loft conversion specialists in Northern Ireland? Our attic room conversion renovators in Northern Ireland are able to offer you the best quotes to have a loft transformed in your home.

The installation of a attic extension in your own home can be achieved quickly, enabling you to make full use of the changed area and begin benefitting from an added room. The loft area transformation will be carried out by a vetted, accredited business and as soon as this has been carried out you'll be ready to start using the new location right away. With your newly converted loft area you'll be able to have an extra bedroom, study or even a rec room.

With a variety of loft space alteration designs you'll be in a position to come across something that matches your taste, whilst being suitable and pleasing.

We are going to offer you no obligation quotations from attic room transformation firms in Northern Ireland who will be able to supply you cost-free surveys and quotations on your transformation. Then you can contrast these attic room conversion prices and make certain to get the best bang for your buck.

Average Loft conversion cost in Northern Ireland

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
£18,750

Avg. price

Avg. price
£25,000

Avg. price high

Avg. price high
£28,750

£29300

£21975

£14650

£7325

£0

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

Loft conversion installation cost in Northern Ireland 2026

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

Loft conversion searches in July 2026

Loft conversion Projects in Northern Ireland in June 2026

27,288

Requests for quotations in Northern Ireland in June 2026

441

Requests for Loft conversion quotations in Northern Ireland in June 2026. -5% change from May 2026.

19,918

Requests for Loft conversion quotations in United Kingdom in June 2026. -1% change from May 2026.

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

Loft conversion searches in counties near Northern Ireland June 2026

180

Requests for quotations in County Durham in June 2026

140

Requests for quotations in County Antrim in June 2026

40

Requests for quotations in County Down in June 2026

31

Requests for quotations in County Armagh in June 2026

20

Requests for quotations in County Londonderry in June 2026

20

Requests for quotations in County Tyrone in June 2026

10

Requests for quotations in County Fermanagh in June 2026

Northern Ireland

Northern Ireland is the Irish area of the United Kingdom, with the Republic of Ireland providing the remainder of the island. It comes with a population of just over 1.8 million, plus a population density of 133 people per square kilometre. This population is just 3% of the United Kingdom and 28% of people on the island of Ireland. Northern Ireland’s capital city of Belfast holds the most significant population of around 340,000, while Derry and Lisburn have 100,000 and 45,000 respectively. For all your home improvement projects in Northern Ireland, use reputable specialists to make sure you get a high-quality finish.

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Similar Customer Enquiries for Loft conversion in Northern Ireland

13 May

Conversion | Loft

Newtownabbey - BT37

Enquiry from: Sam J

Start Date: Immediate

i am wanting a dormer window put into my loft space room to create space for an ensuite bathroom. i have the drawings. are you the property owner: owner of the property property type: detached what a...

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20 Oct

Conversion | Loft

Antrim - BT41

Enquiry from: John M

Start Date: Immediate

convert loft space area for 1 ensuit and 2 bedrooms

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16 Oct

Conversion | Loft

Chester le Street - DH2

Enquiry from: Mark R

Start Date: Immediate

customer is looking for loft conversion quotes. they are unsure of options so would like to discuss. confirmed interest via email/sms/ customer lives in chester le street area please call to arrange a...

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19 Jul

Conversion | Loft

Londonderry - BT47

Enquiry from: Ruairi M

Start Date: Immediate

Velux loft conversion . Two bedrooms stairs and maybe bathroom

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22 May

Conversion | Loft

Magherafelt - BT45

Enquiry from: Neil V

Start Date: Immediate

loft converted to a bedroom with stair access through hot press and possible velux/dormer windows on one of both sides. are you the property owner: owner of the property property type: semi detached w...

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06 Oct

Conversion | Loft

Belfast - BT9

Enquiry from: Yuko M

Start Date: Immediate

how much to square off a slope room?like loft conversion

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28 Jul

Conversion | Loft

Ballymena - BT44

Enquiry from: Niall M

Start Date: Immediate

Two dormer windows cut into the existing roof

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15 Apr

Conversion | Loft

Bishop Auckland - DL14

Enquiry from: Jake B

Start Date: Immediate

Staircase fitted above the other stair. Master bedroom split for a corridor. Loft converted

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14 Mar

Conversion | Loft

Ballynadolly - BT28

Enquiry from: Brendan H

Start Date: Immediate

Loft conversion- to be suitable for extra room

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09 Jan

Conversion | Loft

Stanley - DH9

Enquiry from: Jay B

Start Date: Immediate

Hi Paul! We're looking to get a quote for affordable permanent stairs to the loft in our 3-bed end terrace (built circa 1890.) Thanks!

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08 Jan

Conversion | Loft

Ballynadolly - BT28

Enquiry from: Raffaele B

Start Date: Immediate

I need a roof ventilation and loft insulation quotes

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19 Oct

Conversion | Loft

Belfast - BT5

Enquiry from: Walter D

Start Date: Immediate

Customer is looking for Loft Conversion quotes. They are unsure of options so would like to discuss. Confirmed interest via SMS/ Customer lives in Belfast area Please call to arrange an appointment

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13 Sep

Conversion | Loft

Ballymena - BT42

Enquiry from: Heather M

Start Date: Immediate

What are the materials do you have for the loft twin master bedroom please ? Would you mind given the quotes please?

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11 May

Conversion | Loft

Londonderry - BT47

Enquiry from: Noreen M

Start Date: Immediate

Loft conversion two rooms on s two bed terraced house

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29 Mar

Conversion | Loft

Belfast - BT9

Enquiry from: Pamela H

Start Date: Immediate

Hi Can i please have a rough idea on pricing to convert roof space to a room size ROOFSPACE: 7.85m x 3.2m (25' 9" x 10' 6") is it including window, light, power and heating, and stairs? Location Fi...

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27 Mar

Conversion | Loft

Ballynadolly - BT28

Enquiry from: Alexandra B

Start Date: Immediate

Loft conversion for bedroom/possible bathroom

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08 Feb

Conversion | Loft

Chester le Street - DH3

Enquiry from: Lawrence E

Start Date: Immediate

large dormer/mansard loft conversion with stairs and bathroom are you the property owner: owner of the property property type: semi detached what are you looking to convert the space into: bedroom/s a...

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29 Jan

Conversion | Loft

Ballymena - BT43

Enquiry from: Christine B

Start Date: Immediate

Attic conversion into a music room

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08 Jan

Conversion | Loft

Stanley - DH9

Enquiry from: Laura S

Start Date: Immediate

Loft conversion But don't know what's feasible

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15 Nov

Conversion | Loft

Londonderry - BT48

Enquiry from: Stephany C

Start Date: Immediate

loft converted into a bedroom are you the property owner: tenant (with permission) property type: semi detached what are you looking to convert the space into: bedroom/s are you looking to have stairs...

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FAQs

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 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.

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.

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.

Loft conversion

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Customer Reviews

Overall rating:


Northern Ireland Loft conversion installers are rated 4.7 out of 5 based on 2 reviews of 13 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 Northern Ireland Loft conversion contractors

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