Internal Wall Insulation
![Warmline PIR Insulated Plasterboard 1.2m x 2.4m - All Sizes Loft Insulation](http://insulation4less.co.uk/cdn/shop/products/warmline_pir_{width}x.png?v=1690812758)
- Vendor
- Warmline
- Regular price
- from £37.10 £44.52
- Sale price
- from £37.10 £44.52
- Regular price
-
£0.00 - Unit price
- per
![Celotex GA4000 General Purpose PIR Insulation Board 2.4m x 1.2m (All Sizes) Floor Insulation](http://insulation4less.co.uk/cdn/shop/files/GA4000_4a8cd2c4-8ff6-4de2-ad89-fe66f6847378_{width}x.png?v=1700133721)
- Vendor
- Celotex
- Regular price
- from £11.50 £13.80
- Sale price
- from £11.50 £13.80
- Regular price
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£0.00 - Unit price
- per
![Celotex 50mm GA4050 2.4m x 1.2m Floor Insulation](http://insulation4less.co.uk/cdn/shop/files/GA4000_623ff9f2-6021-44b9-8469-124d7333d1bd_{width}x.png?v=1700134999)
- Vendor
- Celotex
- Regular price
- £17.00 £20.40
- Sale price
- £17.00 £20.40
- Regular price
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£0.00 - Unit price
- per
![Celotex 100mm GA4100 2.4m x 1.2m | 100mm Celotex Floor Insulation](http://insulation4less.co.uk/cdn/shop/files/GA4000_1e52c5ff-41fc-47ad-8ae6-686096ce608b_{width}x.png?v=1700135533)
- Vendor
- Celotex
- Regular price
- £29.00 £34.80
- Sale price
- £29.00 £34.80
- Regular price
-
£0.00 - Unit price
- per
![Rockwool RWA45 (All Sizes) Floor Insulation](http://insulation4less.co.uk/cdn/shop/products/rockwool-flexi-rwa_9_{width}x.jpg?v=1627976490)
- Vendor
- Rockwool
- Regular price
- from £22.00 £26.40
- Sale price
- from £22.00 £26.40
- Regular price
-
£0.00 - Unit price
- per
![Celotex 25mm TB4025 2.4m x 1.2m Floor Insulation](http://insulation4less.co.uk/cdn/shop/files/TB4000_3a9ceb87-5174-47f0-b20c-f8f70b3b4fe5_{width}x.png?v=1700136428)
- Vendor
- Celotex
- Regular price
- £11.50 £13.80
- Sale price
- £11.50 £13.80
- Regular price
-
£0.00 - Unit price
- per
![Celotex PL4000 Insulated Plasterboard (All Sizes) 2.4m x 1.2m Floor Insulation](http://insulation4less.co.uk/cdn/shop/files/PL4000_5edc1f08-3d0d-47b7-bab6-c7e22a125e7b_{width}x.png?v=1700140926)
- Vendor
- Celotex
- Regular price
- from £34.50 £41.40
- Sale price
- from £34.50 £41.40
- Regular price
-
£0.00 - Unit price
- per
![75mm Celotex GA4075 2.4m x 1.2m Floor Insulation](http://insulation4less.co.uk/cdn/shop/files/GA4000_49ab2822-302f-45a8-bc3f-5dced690b73c_{width}x.png?v=1700134625)
- Vendor
- Celotex
- Regular price
- £24.50 £29.40
- Sale price
- £24.50 £29.40
- Regular price
-
£0.00 - Unit price
- per
![Celotex TB4000 Insulation Board 1.2m x 2.4m - 25mm to 40mm Floor Insulation](http://insulation4less.co.uk/cdn/shop/files/TB4000_d5ed768d-e16b-4605-88fc-20769bf59f9e_{width}x.png?v=1700136241)
- Vendor
- Celotex
- Regular price
- from £11.50 £13.80
- Sale price
- from £11.50 £13.80
- Regular price
-
£0.00 - Unit price
- per
![Recticel Eurothane GP (2.4m x 1.2m) All Sizes Insulation](http://insulation4less.co.uk/cdn/shop/products/Eurothane-gp-recticel_{width}x.jpg?v=1627502758)
- Vendor
- Recticel
- Regular price
- from £11.50 £13.80
- Sale price
- from £11.50 £13.80
- Regular price
-
£0.00 - Unit price
- per
![Celotex 120mm XR4120 2.4m x 1.2m Floor Insulation](http://insulation4less.co.uk/cdn/shop/files/XR4000_bdc3209c-103b-40be-961a-7d812094109a_{width}x.png?v=1700138940)
- Vendor
- Celotex
- Regular price
- £38.00 £45.60
- Sale price
- £38.00 £45.60
- Regular price
-
£0.00 - Unit price
- per
![Celotex XR4000 Insulation Board 1.2m x 2.4m - 110mm to 200mm Loft Insulation](http://insulation4less.co.uk/cdn/shop/files/XR4000_c9ff1917-a04b-413f-856c-3e799bf3b6f1_{width}x.png?v=1700139499)
- Vendor
- Celotex
- Regular price
- from £37.50 £45.00
- Sale price
- from £37.50 £45.00
- Regular price
-
£0.00 - Unit price
- per
![Celotex 40mm TB4040 2.4m x 1.2m Floor Insulation](http://insulation4less.co.uk/cdn/shop/files/TB4000_f3c039dd-2c96-4a72-9be8-519becab507e_{width}x.png?v=1700136961)
- Vendor
- Celotex
- Regular price
- £16.00 £19.20
- Sale price
- £16.00 £19.20
- Regular price
-
£0.00 - Unit price
- per
![70mm Celotex GA4070 2.4m x 1.2m Floor Insulation](http://insulation4less.co.uk/cdn/shop/files/GA4000_9580713a-7ffb-4da2-820f-3b7ec95ce8d9_{width}x.png?v=1700135701)
- Vendor
- Celotex
- Regular price
- £23.50 £28.20
- Sale price
- £23.50 £28.20
- Regular price
-
£0.00 - Unit price
- per
![150mm Celotex XR4150 2.4m X 1.2m | Celotex 150mm Floor Insulation](http://insulation4less.co.uk/cdn/shop/files/XR4000_1f889da2-c6d9-4903-9377-df21af3163ff_{width}x.png?v=1700138761)
- Vendor
- Celotex
- Regular price
- £46.50 £55.80
- Sale price
- £46.50 £55.80
- Regular price
-
£0.00 - Unit price
- per
![Celotex 60mm GA4060 2.4m x 1.2m Floor Insulation](http://insulation4less.co.uk/cdn/shop/files/GA4000_98f05f5a-e2ad-4ef0-94db-2e4b0d9d4f41_{width}x.png?v=1700135161)
- Vendor
- Celotex
- Regular price
- £22.00 £26.40
- Sale price
- £22.00 £26.40
- Regular price
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£0.00 - Unit price
- per
![90mm Celotex GA4090 2.4m x 1.2m Floor Insulation](http://insulation4less.co.uk/cdn/shop/files/GA4000_aab57f19-b620-4c36-bc22-7e27d504bc37_{width}x.png?v=1700135540)
- Vendor
- Celotex
- Regular price
- £30.00 £36.00
- Sale price
- £30.00 £36.00
- Regular price
-
£0.00 - Unit price
- per
![Celotex PL4025 37.5mm 2.4m x 1.2m Wall Insulation](http://insulation4less.co.uk/cdn/shop/files/PL4000_b3ab205f-9a43-412c-90f1-c3c6e4937e71_{width}x.png?v=1700141297)
- Vendor
- Celotex
- Regular price
- £34.50 £41.40
- Sale price
- £34.50 £41.40
- Regular price
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£0.00 - Unit price
- per
![Celotex 30mm TB4030 2.4m x 1.2m Floor Insulation](http://insulation4less.co.uk/cdn/shop/files/TB4000_490c0d2d-0a50-4ffb-9d81-28e364fb0f9d_{width}x.png?v=1700136601)
- Vendor
- Celotex
- Regular price
- £13.00 £15.60
- Sale price
- £13.00 £15.60
- Regular price
-
£0.00 - Unit price
- per
![80mm Celotex GA4080 2.4m x 1.2m Floor Insulation](http://insulation4less.co.uk/cdn/shop/files/GA4000_4889a3ca-aad5-4b15-8d25-e7192b421f3a_{width}x.png?v=1700134801)
- Vendor
- Celotex
- Regular price
- £27.00 £32.40
- Sale price
- £27.00 £32.40
- Regular price
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£0.00 - Unit price
- per
![Celotex PL4050 62.5mm 2.4m x 1.2m Wall Insulation](http://insulation4less.co.uk/cdn/shop/files/PL4000_b1b9e136-c92c-422c-9e2b-60edc54ff038_{width}x.png?v=1700141281)
- Vendor
- Celotex
- Regular price
- £46.50 £55.80
- Sale price
- £46.50 £55.80
- Regular price
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£0.00 - Unit price
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![Gyproc ThermaLine Basic Insulation 1.2m x 2.4m (All Sizes) Wall Insulation](http://insulation4less.co.uk/cdn/shop/products/thermal_basic_6_{width}x.jpg?v=1627540917)
- Vendor
- British Gypsum
- Regular price
- from £780.23 £936.28
- Sale price
- from £780.23 £936.28
- Regular price
-
£0.00 - Unit price
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![Mannok Insulation Board 1.2m x 2.4m (All Sizes) Floor Insulation](http://insulation4less.co.uk/cdn/shop/products/Mannok-Therm-Floor-MF_{width}x.jpg?v=1627503894)
- Vendor
- Mannok
- Regular price
- from £0.00 £0.00
- Sale price
- from £0.00 £0.00
- Regular price
-
£0.00 - Unit price
- per
![100% Sheepwool Insulation Optimal Roll (All Sizes) Loft Insulation](http://insulation4less.co.uk/cdn/shop/products/optimalsheepwoolinsulation_{width}x.jpg?v=1627827403)
- Vendor
- Sheepwool
- Regular price
- from £89.92 £107.90
- Sale price
- from £89.92 £107.90
- Regular price
-
£0.00 - Unit price
- per
![Celotex PL4040 52.5mm 2.4m x 1.2m Wall Insulation](http://insulation4less.co.uk/cdn/shop/files/PL4000_01ea9524-da76-49a7-8f52-38f02684fd18_{width}x.png?v=1700141111)
- Vendor
- Celotex
- Regular price
- £43.00 £51.60
- Sale price
- £43.00 £51.60
- Regular price
-
£0.00 - Unit price
- per
![Celotex PL4060 72.5mm 2.4m x 1.2m Wall Insulation](http://insulation4less.co.uk/cdn/shop/files/PL4000_2c687449-0db0-4a0c-b138-ee4ec2756a11_{width}x.png?v=1700141641)
- Vendor
- Celotex
- Regular price
- £47.70 £57.24
- Sale price
- £47.70 £57.24
- Regular price
-
£0.00 - Unit price
- per
![12mm Celotex TB4012 2.4m x 1.2m Floor Insulation](http://insulation4less.co.uk/cdn/shop/files/TB4000_e9ff0d57-ef59-4a2b-9202-b50782d73f69_{width}x.png?v=1700136781)
- Vendor
- Celotex
- Regular price
- £0.00 £0.00
- Sale price
- £0.00 £0.00
- Regular price
-
£0.00 - Unit price
- per
![EcoTherm Eco-versal Insulation Board (2.4m x 1.2m) - All Sizes Floor Insulation](http://insulation4less.co.uk/cdn/shop/files/Untitleddesign-2024-03-22T094324.755_{width}x.png?v=1711100807)
- Vendor
- Ecotherm
- Regular price
- from £11.50 £13.80
- Sale price
- from £11.50 £13.80
- Regular price
-
£0.00 - Unit price
- per
![140mm Celotex XR4140 Insulation Board 2.4m x 1.2m Floor Insulation](http://insulation4less.co.uk/cdn/shop/files/XR4000_c4f609e5-1159-42bc-b79a-592a64900259_{width}x.png?v=1700138581)
- Vendor
- Celotex
- Regular price
- £44.00 £52.80
- Sale price
- £44.00 £52.80
- Regular price
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£0.00 - Unit price
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![Kingspan Thermawall TW55 Steel/Timber Framing Board (All Sizes) 2.4m x 1.2m Wall Insulation](http://insulation4less.co.uk/cdn/shop/products/tw55_{width}x.jpg?v=1627547607)
- Vendor
- Kingspan
- Regular price
- from £116.64 £139.97
- Sale price
- from £116.64 £139.97
- Regular price
-
£0.00 - Unit price
- per
![Celotex 20mm TB4020 2.4m x 1.2m Wall Insulation](http://insulation4less.co.uk/cdn/shop/files/TB4000_31f9ccfa-0bdd-48ce-b3e1-040b6f64e707_{width}x.png?v=1700137148)
- Vendor
- Celotex
- Regular price
- £17.17 £20.60
- Sale price
- £17.17 £20.60
- Regular price
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£0.00 - Unit price
- per
![Rockwool RW3 Acoustic, Thermal, and Fire Performance Insulation Slabs (All Sizes) Cavity wall Insulation](http://insulation4less.co.uk/cdn/shop/products/rockwool-flexi-rwa_17_{width}x.jpg?v=1627763780)
- Vendor
- Rockwool
- Regular price
- from £394.90 £473.88
- Sale price
- from £394.90 £473.88
- Regular price
-
£0.00 - Unit price
- per
![100% Sheepwool Insulation Premium Roll (All Sizes) Loft Insulation](http://insulation4less.co.uk/cdn/shop/products/premiumsheepwoolinsulation_{width}x.jpg?v=1627298314)
- Vendor
- Sheepwool
- Regular price
- from £111.40 £133.68
- Sale price
- from £111.40 £133.68
- Regular price
-
£0.00 - Unit price
- per
![Warmline XPS Insulated Plasterboard 1.2m x 2.4m - All Sizes Loft Insulation](http://insulation4less.co.uk/cdn/shop/products/warmline-xps_2_{width}x.jpg?v=1598631066)
- Vendor
- Warmline
- Regular price
- from £0.00 £0.00
- Sale price
- from £0.00 £0.00
- Regular price
-
£0.00 - Unit price
- per
![Kingspan Kooltherm K118 Insulated Plasterboard (All Sizes) 2.4m x 1.2m All Insulation](http://insulation4less.co.uk/cdn/shop/products/k118_bc1bf774-adf2-41ee-bcc4-d3a4757b6dd1_{width}x.jpg?v=1627393696)
- Vendor
- Kingspan
- Regular price
- from £919.63 £1,103.56
- Sale price
- from £919.63 £1,103.56
- Regular price
-
£0.00 - Unit price
- per
![130mm Celotex XR4130 2.4m x 1.2m Floor Insulation](http://insulation4less.co.uk/cdn/shop/files/XR4000_462bf574-f144-4f34-b041-06db4cfd9a73_{width}x.png?v=1700139841)
- Vendor
- Celotex
- Regular price
- £43.50 £52.20
- Sale price
- £43.50 £52.20
- Regular price
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£0.00 - Unit price
- per
![Celotex 110mm XR4110 2.4m x 1.2m Floor Insulation](http://insulation4less.co.uk/cdn/shop/files/XR4000_16277cf0-3ef7-4685-a326-990d1accc453_{width}x.png?v=1700139666)
- Vendor
- Celotex
- Regular price
- £37.50 £45.00
- Sale price
- £37.50 £45.00
- Regular price
-
£0.00 - Unit price
- per
![Gyproc Thermaline Plus (2.4m x 1.2m) All Sizes Wall Insulation](http://insulation4less.co.uk/cdn/shop/products/2400_x_1200_x_27mm_gyproc_thermaline_plus_te_p061_0_4_{width}x.jpg?v=1595434272)
- Vendor
- British Gypsum
- Regular price
- from £1,175.62 £1,410.74
- Sale price
- from £1,175.62 £1,410.74
- Regular price
-
£0.00 - Unit price
- per
![Celotex 165mm XR4165 2.4m x 1.2m (Pallet of 12) Wall Insulation](http://insulation4less.co.uk/cdn/shop/files/XR4000_8177abb8-05b0-40b1-b246-7fc724101067_{width}x.png?v=1700139124)
- Vendor
- Celotex
- Regular price
- £840.00 £1,008.00
- Sale price
- £840.00 £1,008.00
- Regular price
-
£0.00 - Unit price
- per
![Rockwool RW5 1200mm x 600mm (All Sizes) Cavity wall Insulation](http://insulation4less.co.uk/cdn/shop/products/rockwool-flexi-rwa_18_{width}x.jpg?v=1595384746)
- Vendor
- Rockwool
- Regular price
- from £691.65 £829.98
- Sale price
- from £691.65 £829.98
- Regular price
-
£0.00 - Unit price
- per
![Thermaclass Cavity Wall 21 (1190mm x 450mm) - All Sizes Insulation](http://insulation4less.co.uk/cdn/shop/files/Thermaclass_Cavity_Wall_21_1st_{width}x.png?v=1700227680)
- Vendor
- Celotex
- Regular price
- from £1,121.95 £1,346.34
- Sale price
- from £1,121.95 £1,346.34
- Regular price
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£0.00 - Unit price
- per
![Gyproc Thermaline Super 1.2m x 2.4m - All Sizes Wall Insulation](http://insulation4less.co.uk/cdn/shop/products/thermal_super_2_1_8_{width}x.jpg?v=1598803870)
- Vendor
- British Gypsum
- Regular price
- from £79.58 £95.50
- Sale price
- from £79.58 £95.50
- Regular price
-
£0.00 - Unit price
- per
![Knauf Earthwool OmniFit Slabs (All Sizes) Loft Insulation](http://insulation4less.co.uk/cdn/shop/products/a54491abc478fe57386ca355eb7a426d_5_{width}x.jpg?v=1595402902)
- Vendor
- Knauf
- Regular price
- from £898.49 £1,078.19
- Sale price
- from £898.49 £1,078.19
- Regular price
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£0.00 - Unit price
- per
![Knauf Earthwool RS60 (600mm x 1200mm) - All Sizes Loft Insulation](http://insulation4less.co.uk/cdn/shop/products/q_1_{width}x.jpg?v=1595401424)
- Vendor
- Knauf
- Regular price
- from £395.80 £474.96
- Sale price
- from £395.80 £474.96
- Regular price
-
£0.00 - Unit price
- per
![Knauf Earthwool RS45 (600mm x 1200mm) - All Sizes Loft Insulation](http://insulation4less.co.uk/cdn/shop/products/q_{width}x.jpg?v=1595471416)
- Vendor
- Knauf
- Regular price
- from £343.40 £412.08
- Sale price
- from £343.40 £412.08
- Regular price
-
£0.00 - Unit price
- per
![Celotex XR4200 200mm x 2.4m x 1.2m (Pallet of 12) Loft Insulation](http://insulation4less.co.uk/cdn/shop/files/XR4000_613e1c10-42ad-40a0-9acc-715648d1d52a_{width}x.png?v=1700139497)
- Vendor
- Celotex
- Regular price
- £1,020.00 £1,224.00
- Sale price
- £1,020.00 £1,224.00
- Regular price
-
£0.00 - Unit price
- per
![Knauf Frametherm Roll - All Sizes Loft Insulation](http://insulation4less.co.uk/cdn/shop/products/knauf-frametherm-roll-35_2_{width}x.jpg?v=1595471590)
- Vendor
- Knauf
- Regular price
- from £1,121.89 £1,346.27
- Sale price
- from £1,121.89 £1,346.27
- Regular price
-
£0.00 - Unit price
- per
![Rockwool Cladding Roll - All Sizes Cavity wall Insulation](http://insulation4less.co.uk/cdn/shop/products/rockwool-cladding-roll-edited_2_{width}x.jpg?v=1627342685)
- Vendor
- Rockwool
- Regular price
- from £0.00 £0.00
- Sale price
- from £0.00 £0.00
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- per
- Page 1 of 2
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Why do you need Internal Wall insulation?
Internal wall insulation is an essential way of insulating your home to maintain heat and to keep your home warm. Wall insulation is extremely necessary in colder countries as it locks in the heat and blocks out the cold and harsh weather. The installation of Internal wall insulation means you cut costs on energy bills while enjoying a more comfortable living environment. Let’s now talk about the need of Internal Wall insulation and its key benefits in a little more detail.
Acoustic Insulator – Insulation works great when it comes to reducing noise pollution. One of the most important purposes of internal wall insulation is being comfortable in your home, and with well insulated walls one can relax especially at night as external sounds are muted. You do not have to worry about a single pinch of sound once you have installed high quality wall insulation.
Temperature Control – Temperature control is what these wall insulators do best. They will minimize the cold and heat up the environment within your homes. There will be no waste of energy through your walls, and this allows you to make sure that the temperature is well maintained. One can also expect a lower electricity bill every month, and that can be a quick money saver also.
Fire Protection - Internal wall insulation is a great way to protect from fire. In the event of a fire, our non-combustible insulation slows the spread of the flames. In addition, polystyrene boards can help resist fire, and they are very good retardants during an emergency. Big organizations and offices use internal wall insulators with fireproofing as an extra precaution as they are more prone to experiencing short circuits.
Condensation Reduction - The use of Mineral wools, Natural materials, Foam boards and planned ventilation is required results in far less condensation build up. Eliminating Condensation is a significant task that should be performed correctly to get the most out of your insulation.
Things worth knowing when installing wall thermal insulation
There will be cold bridges, floor voids and other reveals that must be taken care of. One must remove everything that is fixed on the walls such as – radiators, pipes, covings, kitchen cabinets, Kitchen cabinets, light switches, curtain rails, fitted wardrobes etc. Chalking out the right methods are necessary before installing insulators. Fix insulation by building a stud wall.The connecting of the joints and skimming of plasterboard is necessary to give it the finishing needed for optimum results.
Preparing the walls for internal insulation
It is important to check the condition of the wall. The condition of the walls will determine the preparation that is needed. You must inspect damp areas and decide whether the old plaster needs to be hacked off. There are many factors to verify –
-Whether you need mechanical fixing
-Whether battening is required to provide a flat surface
If the wall is damp, then the insulators can worsen the temperature of the wall and this will result in more dampness/damage. If you have a damp wall, then you must make sure that all the damp is taken care of first. By redoing the wall with damp proof materials along with a fresh coat of paint you will be in a better decision to install insulation and receiving positive results.
Dry lining Insulation
This is a process by which internal walls are fixed with insulators with dry lining instead of plastering, and this can be a quick alternative. Dry lining involves masonry of metal and timber and unlike traditional plastering; this needs no water at all. This new type of insulation fixing can increase thermal efficiency. One needs to be cautious in selecting the right plasterboard because these are available in a large range of different sizes and lengths. The process of installation is effortless, and you only need to know the right method to go about it. If you are about to fix dry lining to metal or timber frames, tacking or using screws is the best approach.
The pros of internal wall insulation
-Less expensive than the external wall insulation.
-If you cannot insulate your property externally then this might be the only option for you.
-You can have breathability and ventilation with this IWI.
-They are not very costly, and they are sorted by their Width, thermal conductivity, length, price, thickness, coverage, brand and category meaning you are spoiled for choice.
We here at Insulation4Less hope to have successfully informed you of all the benefits internal wall insulation has to offer! Go ahead and browse our large range of insulation and remember that a member of our support team is always here to help!