Loft & Roof Insulation in Northern Ireland

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Loft & Roof Insulation in Northern Ireland

Are you trying to find loft insulation in Northern Ireland? Our network of installers are can help with your job. Every one of our installers in Northern Ireland are checked so you can see local consumer reviews, when business was set up, rankings, satisfaction and also price enabling you to make the appropriate choice on who to employ. Let us take the hassle out of locating as much as 4 experts for your roof insulation job.

 

The types of roof insulation available depend on the kind of roof covering that it will be used with. With a pitched roof, either cozy or cool loft insulation can be suitable. Cold loft space insulation is the most inexpensive alternative, just entailing putting insulation beyond wooden joists. Nonetheless, as this only stops warm leaving the living location of the residence, it isn't suitable for those seeking to hidden the loft into a home. Cozy loft insulation is placed straight under the roof, and also hence will maintain the loft room at a consistent temperature over the program of the year. Thus, it is excellent if the loft is utilized as a space. Cozy loft insulation can be found in various forms, be it glass-wool or polystyrene. Spray foams can also be used, yet in some situations might be inappropriate.

 

Kinds of loft space insulation

Blanket Insulation

One of the most common type of loft space insulation, this can be found in rolls of rock, glass or mineral fiber (we utilize Earthwool by Knauf which is a really excellent environmentally friendly option), or else foil-backed felt. It's usually the least expensive option as well as good all-purpose insulation, particularly for in between joists. It's the simplest type to fit yet isn't suitable for the roof.

 

Loose-fill Insulation

This sort of insulation consists of a loosened, lightweight, product, such as cork granules, cellulose fiber, mineral woollen or perhaps recycled newspaper. It can be made use of to cover up existing insulation or by itself. The main downside is it isn't really safe as well as can be really untidy!

 

Sheet Insulation

Firm boards of either artificial or all-natural materials, this is the best option for protecting the underside of your roofing. The boards offer extremely reliable insulation for your loft room as well as can also be embellished over. The disadvantage is that sheet insulation often tends to be one of the most pricey type.

 

Blown-fibre Insulation

Loosened materials of different kinds blown in between joists, this is ideal for hard-to-get-at places but does not provide a full service, specifically in a draughty loft space. It's also costly and needs to be installed by a specialist.

 

We will give up to 4 Loft insulation pros in your area, that will certainly provide quotations for the work you desire done. You'll receive a home visit from specialists in Northern Ireland who'll help you to choose the appropriate Loft insulation for your house prior to executing the setup. Enter your postal code to begin browsing now.

Average Loft insulation cost in Northern Ireland

The typical cost of Loft insulation is £600. Costs differ based upon the materials and the contractor selected. The upper price range can be as high as £690. The material costs are in most cases approximately £150

Average price per Loft insulation job in 2026

Avg. price low

Avg. price low
£450

Avg. price

Avg. price
£600

Avg. price high

Avg. price high
£690

£800

£600

£400

£200

£0

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

Loft insulation installation cost in Northern Ireland 2026

Labour cost £420
Material cost £150
Waste removal £30
Time frame: 1-3 days

Loft insulation searches in August 2026

Loft insulation Projects in Northern Ireland in July 2026

27,288

Requests for quotations in Northern Ireland in July 2026

764

Requests for Loft insulation quotations in Northern Ireland in July 2026. 13% change from June 2026.

37,319

Requests for Loft insulation quotations in United Kingdom in July 2026. 9% change from June 2026.

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

Loft insulation searches in counties near Northern Ireland July 2026

350

Requests for quotations in County Antrim in July 2026

190

Requests for quotations in County Durham in July 2026

70

Requests for quotations in County Down in July 2026

60

Requests for quotations in County Londonderry in July 2026

54

Requests for quotations in County Armagh in July 2026

30

Requests for quotations in County Tyrone in July 2026

10

Requests for quotations in County Fermanagh in July 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 insulation in Northern Ireland

01 Jun

Insulation | Loft / Roof

Strabane - BT82

Enquiry from: Elizabeth C

Start Date: Immediate

Loft and check wall insulation.

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04 Apr

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Newtownabbey - BT37

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loft floor area insulated

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01 Apr

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Ballymena - BT44

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quotes to insulate my attic

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31 Mar

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Omagh - BT78

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I need quotes for loft insulation

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31 Mar

Insulation | Loft / Roof

Newtownards - BT22

Enquiry from: Sandra P

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looking for loft insulation upgrade quotes

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31 Mar

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Newry (South Down section) - BT34

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loft insulation in eves around dormo windows

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28 Mar

Insulation | Loft / Roof

Belfast - BT10

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Loft insulation to check and top up.

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16 Mar

Insulation | Loft / Roof

Belfast - BT11

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Loft floored at minute, but no insulation need this to be done

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10 Mar

Insulation | Loft / Roof

Duneight - BT27

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Need new insulation put in ceiling and new plasterboard. One bedroom 4m2

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15 Jan

Insulation | Loft / Roof

Ballynadolly - BT28

Enquiry from: Emma S

Start Date: 1 to 3 months

current insulation: some / old roof type: other/not sure are you the property owner: tenant (with permission) property type: semi detached how many bedrooms do you have: 3-4 do you currently ha...

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27 Dec

Insulation | Loft / Roof

Craigavon (West) - BT64

Enquiry from: Suryabhan A

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Party wall insulation and cold pitch eaves insulation repair

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29 Nov

Insulation | Loft / Roof

Ballynadolly - BT28

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I need 200 mm loft insulation

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17 Nov

Insulation | Loft / Roof

Craigavon - BT62

Enquiry from: Sally G

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Attic insulation upgrade

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20 Oct

Insulation | Loft / Roof

Limavady - BT49

Enquiry from: Kelsey M

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Attic insulation and wall cavity insulation if available

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01 Oct

Insulation | Loft / Roof

Newtownabbey - BT37

Enquiry from: Alex M

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200mm Ioft insulation rolls

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19 May

Insulation | Loft / Roof

Bangor (outside Ring Road) - BT19

Enquiry from: Norman H

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150mm top up loft insulation hw cylinder thermostat and cylinder jacket are you the property owner: owner of the property how many bedrooms do you have: 3-4 do you currently have loft insulation: yes ...

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02 Dec

Insulation | Loft / Roof

Bangor (outside Ring Road) - BT19

Enquiry from: Alex F

Start Date: Immediate

Loft insulation as it’s very cold

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27 Nov

Insulation | Loft / Roof

Craigavon - BT62

Enquiry from: Erik R

Start Date: Immediate

We require our roof space to be insulated, as currently there is just felt between the rafters

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22 Nov

Insulation | Loft / Roof

Belfast - BT29

Enquiry from: Sarah M

Start Date: Immediate

I am looking for quotes for loft insulation. I would also like to enquire about cavity wall insulation costs. This will be for a semi detached home.

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14 Nov

Insulation | Loft / Roof

Ballymena - BT42

Enquiry from: Karl M

Start Date: Immediate

insulation for about 80 square metres. are you the property owner: owner of the property property type: semi detached how many bedrooms do you have: 1-2 do you currently have loft insulation: yes do ...

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FAQs

how thick should loft insulation be?

Over the years there has been an increase in the recommended thickness of loft insulation by the government. Obviously, the reason behind this is pretty simply - the thicker the layer of your loft insulation the bigger your savings. The UK government is very keen to every house in the country to have loft insulation fitted where possible as it helps to minimize the heating demands of these properties. Households get to benefit from loft insulation in so many ways which includes reduced energy energy bills as well as having a home that stays at a more comfortable temperature for longer.

 

Generally, for the government energy efficiency is crucial as it implies that the highest demand ( which is usually the time of the day when gas or electricity use is at its peak ) reduces, since each building requires slightly less energy. Overall, that ultimately implies that new power plants don’t have to be built which is some nice cost savings for the government.

 

In the 1980’s, any thickness of loft insulation from 25 mm to 50 mm was considered the standard. But then, building regulations stated that homes should have as much as 100 mm of loft insulation. Over time, this gradually increased to 270mm for new builds and also recommended for other properties, although not essential. As a result of this, there’s always a need to check how much insulation you currently have in your loft before you decide to purchase more. You may discover that you already have something within the range of 20 mm to 200 mm up there and knowing this and the insulation values will assist in determining how much more you’ll need to purchase, if any at all. You should also note that some modern materials can offer the same thermal insulation whilst not being as thick.

how to insulate a loft?

Do you know about 25 percent of heat that escapes from an uninsulated house are lost through the roof? Fortunately, roof insulation is something that can done by all DIYers irrespective of their experience levels. However, if you happen to lack the confidence necessary to pull off this, then it’s strongly recommended that you hire the services of a professional who can guarantee the best results and also save you time and money that could arise from potential cost mistakes. Let’s take a look!

  • Clear out all clutter. This involves taking out all the rubbish and clutter from the loft. In order to work effectively, you’ll need a totally clear and empty loft space.
  • Ensure that there’s sufficient insulation. The importance of a good ventilation cannot be overstated. Poor ventilation will result in forming of condensation and this condensation can make the roof timbers rot and compromise the structural integrity of the entire roof. If there are no roof windows which is the easiest way to provide a loft ventilation, the next best option would be to follow the loft floor along to the point where the roof comes down to meet it. There should be a gap at this point, also referred to as the eaves, between the outside wall and the underside of the roof.
  • Measure your loft area. Take a measurement of the loft space in order to calculate the amount of insulation as well as the type you need. If you’re not sure, always get more that it’s required as skimming on the amount you use will only back fire in form of increased energy costs
  • Check for water pipes.

 

To get started, simply make sure all cracks and gaps in the ceiling are filled using a standard filler or decorator caulk. Once done, clean the gaps in the joists and even to the point of hovering all the dust up. Finally,check for the hazards that can cause you problems before laying the loft insulation.

does loft insulation cause condensation?

The short and simple answer to this question is yes, loft insulation does cause condensation. Over the years, problems with condensation in loft spaces have become increasingly common. While this may not be harmful in anyway, when the condensation becomes excessive it can lead to more serious issues taking root in your loft like wet rot, dry rot as well as black spot mould. Generally, the best thing to do if you’re concerned about the condensation in your loft space and that it may rapidly become a bigger problem is to get in touch with a damp specialist as soon as possible.

 

Even though insulating your loft space comes with a wide array of benefits like making the top floor rooms warmer, it’s however comes at the cost of making your loft or room space cooler. Condensation in lofts take place primarily due to the humid air making its way through insulation or other gaps into the loft space and touching a cooler surface which in turn results in beads of moisture on the timbers, lintels as well as the underside of the roof. This is why its always a great idea make use of thermal insulation with a vapour barrier that’s installed on the warmer side of the insulating material.

 

Condensation in loft is caused by excess moisture in the air and lack of adequate air ventilation. Here are some top reasons that gives rise to this in the loft:

  • Extra insulation has been installed in the loft leading to a restriction on the natural air circulation in the property.
  • When the storage boxes or other items that has been stockpiled in the loft blocks the roof vents.
  • The release of steam and moist air into the loft space by hot water tanks.
Is loft insulation flammable?

When thinking about the right insulation material for your loft, some of the first few things that comes to mind is the various properties of that material as well as how good they fit with your home’s needs.naturally, you’d like to ensure that the insulation will be efficient enough to add to the overall energy efficiency of your home, however there are also other features that may not get as much attention but also happens to be equally important. As the primary function of an insulation is to blanket your house to offer a barrier against heat loss, going for an insulation material that’s also fireproof is crucial as loft insulation can burn. Although most insulation materials are fireproof, a myriad of problems can actually make your insulation burn.

 

For instance, fibreglass insulation is produced using glass combined with plastic polymers and is naturally resistant to fire. However, even at that you’d have to be careful with batts that are supported with foil or paper due to the fact that these materials can burn pretty quickly. Cellulose, on the other hand, is not fireproof and is required to be treated by other flame retardants in order to help reduce combustion. Some of the best insulation materials that are resistant to fire includes the following:

  • Fibre glass. This is made of glass that’s spun into fibres, then combined using plastic polymers. As a result, fiberglass insulation is naturally resistant to fire.
  • Mineral wool. Having a high melting temperature, this insulation material happens to be a great fit for thermal applications due to its superior fire resistant properties. In fact, mineral wool is still naturally non-combustible even if composed of recycled iron and steel by-products, or from actual mineral rock itself.
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Northern Ireland Loft insulation installers are rated 4.4 out of 5 based on 3 reviews of 8 pros.
The LeadsDoWork rating and review is an overall rating based on verified reviews and feedback from the customers with Loft insulation projects that have been connected with Loft insulation pros to help them. All Loft insulation contractors All Northern Ireland Loft insulation contractors

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