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If you are looking for affordable, quality insulation, you’re at the right place.

InsulationDiscount is the marketplace for all leading insulation materials, stocking brands such as Kingspan, Celotex, Knauf, Xtratherm, Recticel, IKO, Ecotherm and Rockwool at competitive prices. We compare and monitor over 2000 insulation products every day varying from wall insulation to roof insulation to floor insulation to loft insulation so you don’t have to. With our large supply network, we supply almost every type of insulation nationwide. 

At InsulationDiscount, we offer a wide range of insulation boards, insulation rolls, insulation slabs and plasterboards. In addition to our insulation materials, we also supply insulation accessories. With our stock of over twenty manufacturers, InsulationDiscount is the one-stop-shop for all your insulation needs.

We deliver to anywhere in mainland UK free of charge when you spend £275 Ex VAT or more. Click here for more information.

You can shop online 24 hours a day, 7 days a week. Our trading hours for telephone assistance are Monday to Friday, between 8:30 am and 6 pm.

Free Delivery on orders over £275 Ex VAT*

Which are the most common insulation materials?

Insulating your home is vital to boost efficiency and minimize heat loss. Energy saving insulation can also increase the value of your home. It’s very important to understand the best insulation materials for you home and why you should use them. With that in mind, you will notice that there are a plethora of extraordinary insulation materials you can start using today. The government-backed Green Homes Grant can help for energy efficiency improvements to your home.

PIR insulation

PIR insulation boards are widely applicable and perfectly suitable for insulating a flat roof or cavity wall. PIR has excellent thermal quality and insulates better than many other insulation products, even at low thickness. This type of insulation also comes in many forms, including spray-foam, liquid or rigid insulation boards and panels. Due to this, it is very flexible and versatile and can be used on a number of different surfaces.

EPS Insulation


EPS (Expanded Polystyrene) Insulation is a lightweight insulator, made of polystyrene foam beads. EPS is a versatile insulation material that is widely used in all kinds of construction and insulation projects due to its good insulating quality and affordability. EPS insulation boards are light, easy to handle and safe to use.

Glass Wool insulation


Glass Wool insulation is affordable and one of the most commonly used insulation materials. This type of insulation is made from recycled glass and sand and is generally produced in blankets. Fiberglass insulation has an open structure with very high insulation value, making it easy to use as wall insulation. Fiberglass insulation is a naturally sound-absorbent material that greatly reduces sound transmission.

Rock Wool Insulation


Rock wool is a non-combustible and sound-resistant insulation material that consists of basalt, a volcanic rock that is 100% recyclable. The superior performance of mineral wool makes it the ideal choice for many types of external wall constructions, including masonry cavities, timber frames, metal frames, rainscreen and external facades. This type of insulation has a long lifespan of an average of 75 years, during which the insulating properties are not compromised.

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