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 2025

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 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 Northern Ireland in May 2025

27,288

Requests for quotations in Northern Ireland in May 2025

441

Requests for Loft conversion quotations in Northern Ireland in May 2025. -5% change from April 2025.

19,918

Requests for Loft conversion quotations in United Kingdom in May 2025. -1% change from April 2025.

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

Loft conversion searches in counties near Northern Ireland May 2025

180

Requests for quotations in County Durham in May 2025

140

Requests for quotations in County Antrim in May 2025

40

Requests for quotations in County Down in May 2025

31

Requests for quotations in County Armagh in May 2025

20

Requests for quotations in County Londonderry in May 2025

20

Requests for quotations in County Tyrone in May 2025

10

Requests for quotations in County Fermanagh in May 2025

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.

Looking for Loft conversion in Northern Ireland?

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Loft conversion pros in Northern Ireland

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
20th July 2017
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
11th April 2018
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
30th April 2016
4

Conversion | Loft in London

Nice guy

Similar Customer Enquiries for Loft conversion in Northern Ireland

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!

Post a similar request >

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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13 Nov

Conversion | Loft

Craigavon - BT67

Enquiry from: John M

Start Date: Immediate

full conversion. currently the attic has a pull down ladder, a light switch and it's floored however we'd like a proper ladder, a window and everything else required are you the property owner: owner ...

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09 Nov

Conversion | Loft

Chester le Street - DH3

Enquiry from: Jo D

Start Date: Immediate

a fixed staircase for easy storage access. possible full conversion at later date are you the property owner: relative of owner property type: terrace what are you looking to convert the space into: s...

Post a similar request >

08 Oct

Conversion | Loft

Consett, Durham, Stanley - DH8

Enquiry from: Greg H

Start Date: Immediate

bedroom loft conversions with 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 are you looking to have s...

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05 Oct

Conversion | Loft

Newry (South Armagh section) - BT35

Enquiry from: Heather K

Start Date: Immediate

iam looking at a loft conversion

Post a similar request >

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FAQs

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.

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 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.

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

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Overall rating:


Northern Ireland Loft conversion installers are rated 4.3 out of 5 based on 6 reviews of 77 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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