Loft & Roof Insulation in Cardiff

Obtain Loft & Roof Insulation Prices in Cardiff

Home > Insulation Projects > Loft insulation > Cardiff

Loft & Roof Insulation in Cardiff

Are you seeking loft insulation in Cardiff? Our network of installers are can assist with your job. Every one of our installers in Cardiff are examined so you can see local reviews, when the business was established, rankings, satisfaction and cost permitting you to make the best choice on who to hire. Let us take the trouble out of discovering up to 4 experts for your roof insulation task.

 

The kinds of roof insulation available depend upon the kind of roof covering that it will be utilized with. With an angled roof, either warm or chilly loft insulation can be appropriate. Cold loft space insulation is the most inexpensive alternative, simply entailing positioning insulation over wooden joists. Nevertheless, as this only protects against warmth getting away the living location of the house, it isn't ideal for those wanting to concealed the loft space into a space. Warm loft insulation is placed directly under the roofing, as well as hence will certainly keep the loft space at a consistent temperature throughout the year. Thus, it is perfect if the loft space is made use of as a space. Cozy loft insulation is available in various kinds, be it glass-wool or polystyrene. Spray foams can likewise be made use of, yet in many cases might disagree.

 

Kinds of loft insulation

Blanket Insulation

One of the most usual type of loft insulation, this is available in rolls of rock, glass or mineral fiber (we make use of Earthwool by Knauf which is a actually great eco-friendly option), otherwise foil-backed felt. It's typically the least expensive choice and also good all-purpose insulation, specifically for in between joists. It's the simplest type to fit yet isn't appropriate for the roofing.

 

Loose-fill Insulation

This kind of insulation contains a loose, light-weight, product, such as cork granules, cellulose fibre, mineral woollen or even recycled newspaper. It can be used to top up existing insulation or on its own. The major disadvantage is it isn't very protected and also can be actually untidy!

 

Sheet Insulation

Company boards of either synthetic or all-natural materials, this is the best service for insulating the underside of your roof covering. The boards give highly reliable insulation for your loft area and can likewise be embellished over. The downside is that sheet insulation often tends to be the most costly kind.

 

Blown-fibre Insulation

Loosened products of various kinds blown in between joists, this is perfect for hard-to-get-at places but does not use a complete remedy, especially in a draughty loft space. It's likewise expensive and requires to be set up by a specialist.

 

We will give as much as 4 Loft insulation pros in your area, who will certainly use quotations for the work you want done. You'll obtain a property visit from professionals in Cardiff who'll help you to pick the appropriate Loft insulation for your residence prior to performing the installation. Enter your postcode to start browsing currently.

Average Loft insulation cost in Cardiff

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 Cardiff, as reported by local LeadsDoWork members.

Loft insulation installation cost in Cardiff 2026

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

Loft insulation searches in October 2026

Loft insulation Projects in Cardiff in September 2026

12,978

Requests for quotations in Cardiff in September 2026

480

Requests for Loft insulation quotations in Cardiff in September 2026. -19% change from August 2026.

510

Requests for Loft insulation quotations in South Glamorgan in September 2026. 2% change from August 2026.

We noted 12,978 requests for property or home quotations in Cardiff. Of these quote requests the amount of loft insulation quotations within Cardiff was 480. Local Quotes would have been able to match these customers with as many as four suitable fitters who were available for work in Cardiff at that time. Ask for a free home survey from reputable companies in Cardiff.

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

Loft insulation searches in cities and towns near Cardiff September 2026

480

Requests for quotations in Cardiff in September 2026

40

Requests for quotations in Caerphilly in September 2026

20

Requests for quotations in Aberdare in September 2026

20

Requests for quotations in Bridgend in September 2026

19

Requests for quotations in Llantwit Major in September 2026

Cardiff

The capital and biggest city of Wales is found in the historic region of Glamorgan, with a population of nearly 350,000. The city remains to be a huge traveller place with over 18 million visitors in 2010. As a capital city, Cardiff's property costs usually are higher than the majority of Wales, which means that it's important to keep hold of this value by utilising vetted skilled tradesmen for your property improvement work.

Looking for Loft insulation in Cardiff?

Get free quotes from local builders

Get free quotes

Loft insulation pros in Cardiff

Metropolitan Insulation

6 review(s)
Based: in London, N5 5DU

Usemyloft is a superior form of loft insulation. It is permanent unlike conventional fibreglass/mineral wool which deteriates and renders your loft floor unusable. We insulate under the roof in the rafters,keeping the heat out in summer and creating ...

Latest review

Funke A., SO23
4

Insulation | Loft / Roof in Winchester

home appointment due tomorrow, but phone quotation also availible

Similar Customer Enquiries for Loft insulation in Cardiff

08 Jan

Insulation | Loft / Roof

Cardiff - CF5

Enquiry from: Lois P

Start Date: Immediate

Roof Size: Less than 20m² Urgency: ASAP Suspected inadequate insulation in single story flat roof extension

Post a similar request >

16 Oct

Insulation | Loft / Roof

Cardiff - CF14

Enquiry from: Sian R

Start Date: Immediate

Quote for suitable roof insulation And extension roof insulation

Post a similar request >

29 Sep

Insulation | Loft / Roof

Cardiff - CF14

Enquiry from: Sian R

Start Date: Immediate

Quote for suitable roof insulation And extension roof insulation

Post a similar request >

30 Mar

Insulation | Loft / Roof

Cardiff - CF5

Enquiry from: Paul L

Start Date: Immediate

Please quote loft insulation, and shed brick work repair (wall cracked)

Post a similar request >

29 Jan

Insulation | Loft / Roof

Cardiff - CF5

Enquiry from: Richard H

Start Date: Immediate

loft insulation 50 mm for a roof area of 60 m sq 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...

Post a similar request >

03 Jan

Insulation | Loft / Roof

Cardiff - CF14

Enquiry from: Stephan C

Start Date: Immediate

Loft boarding installed to create loft storage space. Loft insulation already there, as is pull down ladder to access loft space. Are you the property owner: Owner of the property Property Type: Semi ...

Post a similar request >

09 Nov

Insulation | Loft / Roof

Cardiff - CF5

Enquiry from: Natasha H

Start Date: Immediate

Customer visited the myroofingquotes.co.uk site and submitted an enquiry. Property type: Flat, apartment, Roof type: Flat, Work description: Roof replacement and fixing on house extension

Post a similar request >

09 Mar

Insulation | Loft / Roof

Cardiff - CF24

Enquiry from: Rajendra S

Start Date: Immediate

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: 1900-30 Time scale: Immediate Are you interested in cav...

Post a similar request >

29 Apr

Insulation | Loft / Roof

Cardiff - CF15

Enquiry from: Adrian R

Start Date: Immediate

loft insulation 2 bed link house 30 yr old dimension to insulate is 6.5Mx4.5M 270mm depth required . loft has access ladder and hatch and is boarded in the centre , the loft is clear of storage ite...

Post a similar request >

09 Apr

Insulation | Loft / Roof

Cardiff - CF14

Enquiry from: V

Start Date: Immediate

Lift needs re-insulting and boarding. Some insulation in place. Other areas it has been lifted following a water leak. Already part boarded. No idea how long it's been in place. Refurbishment of home ...

Post a similar request >

23 Feb

Insulation | Loft / Roof

Cardiff - CF24

Enquiry from: Mark L

Start Date: Immediate

Loft insulation in a hard to reach area of the loft. This measures approx 2.5metres x 2.8 & covers the area above 1 of the back bedrooms. This will almost certainly need to be "blown in" insulation, t...

Post a similar request >

Advertisement

Local & reliable builders near me

Tell us about your loft insulation project

Answer a few quick questions, so we can match you with local builders who can help.

Find up to 4 builders in Cardiff

Get free, no-obligation local loft insulation quotes from 4 verified builders working in Cardiff.

Hire with confidence

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

Our reviews

Average

Very good service and will use you ...

Very good service and will use you again Thank you

You did your best no fault with you ...

You did your best no fault with you the trouble lies with me ran out of money thank you Edward

Saved us Helped us in a tricky sit ...

Saved us Helped us in a tricky situation, the bedroom roof was empty of isolation and needed a soundproofing, my daughter was 9 month pregnant. We got help at once .Perfect soundproofing .In time ,P ...

FAQs

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.

Will insulation save me money on my energy bills?

This depends on the amount of insulation already present in your property. However, adding insulation has been proven to improve the energy efficiency of your home and decrease your heating bills, this is more obvious in older properties or where single glazing is still in situ.

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.

Loft insulation

Other Top Projects in Cardiff

Are you a builder in Cardiff?

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

Join today