Loft & Roof Insulation in Belfast

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Loft & Roof Insulation in Belfast

Are you searching for loft insulation in Belfast? Our network of installers are can aid with your project. Every one of our installers in Belfast are inspected so you can see local write-ups, when business was started, ratings, satisfaction as well as cost permitting you to make the best choice on who to employ. Let us take the inconvenience out of finding up to 4 pros for your roof insulation job.

 

The types of roofing insulation readily available rely on the type of roof that it will certainly be utilized with. With a pitched roofing, either cozy or chilly loft insulation can be suitable. Cold loft insulation is the most affordable alternative, merely involving placing insulation beyond wooden joists. Nevertheless, as this only prevents warmth running away the living location of the residence, it isn't suitable for those aiming to hidden the loft space into a living space. Warm loft insulation is placed straight under the roof covering, and hence will certainly maintain the loft space at a consistent temperature over the program of the year. Because of this, it is perfect if the loft is utilized as a space. Warm loft space insulation can be found in different kinds, be it glass-wool or polystyrene. Spray foams can additionally be made use of, yet in many cases may disagree.

 

Kinds of loft insulation

Blanket Insulation

The most usual form of loft insulation, this can be found in rolls of rock, glass or mineral fiber (we utilize Earthwool by Knauf which is a truly good environmentally friendly alternative), otherwise foil-backed felt. It's normally the most inexpensive option and also good all-purpose insulation, specifically for between joists. It's the simplest type to fit yet isn't suitable for the roofing system.

 

Loose-fill Insulation

This type of insulation contains a loosened, lightweight, material, such as cork granules, cellulose fibre, mineral woollen and even recycled newspaper. It can be made use of to top up existing insulation or by itself. The main drawback is it isn't very safe and secure and also can be truly messy!

 

Sheet Insulation

Firm boards of either synthetic or natural materials, this is the very best solution for protecting the underside of your roof covering. The boards offer highly effective insulation for your loft area and also can additionally be enhanced over. The drawback is that sheet insulation tends to be one of the most costly kind.

 

Blown-fibre Insulation

Loose products of different kinds blown in between joists, this is ideal for hard-to-get-at locations yet doesn't provide a full option, particularly in a draughty loft. It's also pricey as well as needs to be mounted by a professional.

 

We will give as much as four Loft insulation pros in your area, who will offer quotes for the job you want done. You'll get a property visit from specialists in Belfast who'll assist you to choose the best Loft insulation for your house prior to executing the installation. Enter your postal code to begin browsing now.

Average Loft insulation cost in Belfast

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

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Avg. price low
£450

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£600

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£690

£800

£600

£400

£200

£0

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

Loft insulation installation cost in Belfast 2026

Labour cost £420
Material cost £150
Waste removal £30
Time frame: 1-3 days
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Loft insulation searches in October 2026

Loft insulation Projects in Belfast in September 2026

6,219

Requests for quotations in Belfast in September 2026

390

Requests for Loft insulation quotations in Belfast in September 2026. 0% change from August 2026.

350

Requests for Loft insulation quotations in County Antrim in September 2026. 17% change from August 2026.

We noted 6,219 requests for home quotations within Belfast. Of these quotation requests the number of loft insulation quotes within Belfast was 390. Local Quotes would have been in a position to match these consumers with up to four suitable contractors who were available for work within Belfast during those times. Request a free property survey from trustworthy companies in Belfast.

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

Loft insulation searches in cities and towns near Belfast September 2026

390

Requests for quotations in Belfast in September 2026

50

Requests for quotations in Lisburn in September 2026

40

Requests for quotations in Newry in September 2026

30

Requests for quotations in Antrim in September 2026

30

Requests for quotations in Londonderry in September 2026

Belfast

The capital of Northern Ireland is the fourteenth greatest city in the UK, which has a populace boasting 267,500. Belfast remains to be a city well known for its industry and over time was responsible for shipbuilding, tobacco, rope making and linen. As one of Britain's major cities, home selling prices will be increased in Belfast, so hold and greatly improve on your property's value with household upgrades done by vetted contractors.

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Similar Customer Enquiries for Loft insulation in Belfast

28 Mar

Insulation | Loft / Roof

Belfast - BT10

Enquiry from: Niveditha V

Start Date: Immediate

Loft insulation to check and top up.

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16 Mar

Insulation | Loft / Roof

Belfast - BT11

Enquiry from: Tricia K

Start Date: Immediate

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

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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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28 Sep

Insulation | Loft / Roof

Belfast - BT17

Enquiry from: Liam M

Start Date: Immediate

Lay insulation in roof space

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14 Jan

Insulation | Loft / Roof

Belfast - BT14

Enquiry from: Gerard M

Start Date: Immediate

customer in belfast areas is looking to do a couple of projects at the moment, and would like quotes for loft & roof insulation.confirmed interest via sms and email at 14/01/2024 10:54.please call to ...

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21 Apr

Insulation | Loft / Roof

Belfast - BT15

Enquiry from: Annamarie M

Start Date: Immediate

Loft high boarded, insulated , new loft hatch made and ladders

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08 Mar

Insulation | Loft / Roof

Belfast - BT4

Enquiry from: Karen D

Start Date: Immediate

my husband was working on the roof insulation but became i’ll and was unable to finish the job.. are you the property owner: owner of the property property type: detached how many bedrooms do you h...

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15 Nov

Insulation | Loft / Roof

Belfast - BT13

Enquiry from: Martha M

Start Date: Immediate

floor loft insulation 3 bedroom house are you the property owner: owner of the property how many bedrooms do you have: 3-4 do you currently have loft insulationn: no age of property: 1970-2000 are yo...

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30 Sep

Insulation | Loft / Roof

Belfast - BT9

Enquiry from: James S

Start Date: Immediate

Under slate roof insulation

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24 Sep

Insulation | Loft / Roof

Belfast - BT10

Enquiry from: Ewelina H

Start Date: Immediate

loft insulation with fibre glass and finished with some kind of foil

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09 Aug

Insulation | Loft / Roof

Belfast - BT8

Enquiry from: Jenny O

Start Date: Immediate

customer made an online enquiry for loft & roof insulation and confirmed on telephone, sms and email they would like a call with a builder to discuss prices.please call to arrange an appointment to qu...

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16 Jun

Insulation | Loft / Roof

Belfast - BT5

Enquiry from: Moya E

Start Date: Immediate

i'm looking for two quotes please: 1) adding attic insulation and ventilation to a three bed house. built in approx 1985, there is currently some sub-par insulation and no ventilation. 2) fixing ceili...

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26 Apr

Insulation | Loft / Roof

Belfast - BT7

Enquiry from: Gary B

Start Date: Immediate

i need loft and roof insulation are you the property owner: owner of the property property type: other how many bedrooms do you have: 1-2 do you currently have loft insulationn: yes do you require a ...

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11 Nov

Insulation | Loft / Roof

Belfast - BT11

Enquiry from: Bridgeen C

Start Date: Immediate

LOFT INSULATION FOR THE WHOLE LOFT

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06 Nov

Insulation | Loft / Roof

Belfast - BT5

Enquiry from: Catherine K

Start Date: Immediate

hi, we need loft insulation for our home and (if possible) boards put down in a small area to enable access to the boiler. our attic is approx 600 sq ft. there is some old insulation up there that we ...

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05 Oct

Insulation | Loft / Roof

Belfast - BT11

Enquiry from: Elizabeyh K

Start Date: Immediate

roof insulation topup and 3 vents roof front and back grant passed are you the property owner: owner of the property how many bedrooms do you have: 3-4 do you currently have loft insulationn: yes do y...

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07 Sep

Insulation | Loft / Roof

Belfast - BT9

Enquiry from: Cathy W

Start Date: Immediate

loft insulation quote for a mid terrace house are you the property owner: tenant (with permission) property type: terrace how many bedrooms do you have: 1-2 do you currently have loft insulationn: no...

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17 Feb

Insulation | Loft / Roof

Belfast - BT8

Enquiry from: Ronan D

Start Date: Immediate

Attic room needs insulation but area is tough to access

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30 Nov

Insulation | Loft / Roof

Belfast - BT4

Enquiry from: Hannah B

Start Date: Immediate

Roofspace insulation quote required for this property which we are currently in the process of purchasing.

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04 Sep

Insulation | Loft / Roof

Belfast - BT29

Enquiry from: Christine C

Start Date: Less than one month

loft and cavity wall insulation as per NIHE grant Are you the property owner: Owner of the property How many bedrooms do you have: 1-2 Property Type: Terrace Do you currently have loft insulationn: No...

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FAQs

what is the best loft insulation?

If you have a loft, then the next thing that’s crucial is a loft insulation. Asides from cutting down on your carbon footprint, when you’re able to install an effective loft insulation you can slash your heating bills by up to £250 per year. What’s more? Besides making your home more energy efficient, it can also increase the value of your property a great deal. So if you’re also considering the insulation of your loft, one of the few things that comes to mind is, what loft insulation is the best to incorporate? In order to help you make the best informed decision possible, this post is going to address this issue and put you on the right path.

 

In truth, there’s no way to say exactly which type of insulation is the best as all types usually have a different purpose as well as usage. The insulation you choose for your home’s loft is be based largely on the how you’re going to make use of the space as well as any unique challenges you might face given the shape of your home’s loft. Below are some types of insulation to give you a better idea:

  • Blanket insulation. This is the most common type that comes in rolls of rock, glass or mineral fibre ( or foil-backed felt ). It normally the most affordable and also a good all-purpose insulation which is easy to fit although not suitable for the roof.
  • Loose-fill insulation. This type of insulation features a loose, lightweight material such as cork granules, cellulose fibre, mineral wool etc. It can either be incorporated as a top up or on its own. The primary drawback is it isn’t very secure and can also be very messy.
  • Sheet insulation. This is the best solution for the roof’s underside as it offers a highly effective insulation for your loft space and can also be decorated over. The drawback here is that it’s usually the most expensive type to purchase and install.
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.
how much loft insulation do I need?

Over the years, more and more home and property owners are beginning to realize the huge benefits that can be derived from loft insulation being a worthwhile investment. It’s quite worrisome the way in which energy bills have soared over the past 10 years and loft insulation is a considerable affordable energy efficiency measure that can go a long way to help increase your home’s energy savings.

 

As far back as the 1980’s, the standard when it comes to insulation thickness was 25 mm to 50 mm which was, at the time, considered to be sufficient. However, building regulations have changed the norm that now states that a new build needs to possess 270 mm of insulation in the loft in order to achieve the required u-value of less than 0.16/m2k based on the standard rock wool or sheep wool insulation.

 

Generally with loft insulation, there’s a law of depreciating returns which implies that the first couple of insulation centimetres will save you many times the cost of the installation, however an extra layer or centimetre is going to add less value to the point where it’ll no longer be wise or worthwhile to add any further centimetre. Therefore, with cheaper energy prices 30 years back, that additional couple of centimetres was not just worthwhile, but with the recent alarming rises in costs of fuel, that additional £10 savings per year has all of sudden changed to £30 which makes it become a lot more attractive.

 

If you already have 270 mm of loft insulation, regardless of the material you’re looking to add you’re most likely not going to benefit from a top up. The cost of the materials and installation will definitely be too high for the couple of pounds it’ll save you per year.

How long does it take to install insulation?

How long it takes to install insulation will depend on the size of your property. In general, loft and cavity wall insulation can be installed in a day or two. External wall insulation will usually take longer to install. The rep or installer will be able to advise you when quoting for the job how long this will be.

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