Thin internal wall insulation 7.125 m2 kit.

Price excl. VAT
Price incl. VAT
(10 items in stock)

ISO-THERM is an ultra thin specially woven polyester based thermal wall insulation , it is flexible and lightweight and will accommodate a plaster skim finish.

It is fixed in place using ISO-THERM Adhesive trowelled onto the wall at a depth of 5mm.


Ultra thin - only 4mm thickness.

Flexible - Easily cuts around light switches and sockets. In most cases door architraves and skirtings can remain in place.

Because of its high thermal benefit it is highly resistant to the formation of surface mould.

When applied directly to sound plastered walls it can be applied in a short space of time and with minimum disruption. Once applied it can be finished with a plaster skim and painted.

ISO-THERM is vapour permeable, but waterproof, thereby resisting any lateral damp transference, and stopping the subsequent natural
any lateral damp transference, and stopping the subsequent natural surface nitrates and chlorides forming as an efflorescent salt.
Because if its high thermal benefit, and the withholding of any natural damp transference it is highly resistant to any formation of surface mould.

The sheer speed of application, and the ability to apply direct to sound plastered walls, means that large areas can be applied in a very short space of time, and save for the plaster skim coat and painting, both residential and commercial properties suffering from cold and damp/mouldy walls can be improved substantially with the minimum of disruption.

Sold in a handy 7.125 m2 kit which includes the Wall Insulation and adhesive.

Please refer to the Isothem guide for all other information.

Delivery options are only available for delivery to mainland UK (excluding Scottish Highlands, Scottish Islands, Channel Islands, Isle Of Man Northern Ireland and Eire). Delivery to Scottish Highlands, Scottish Islands, Channel Islands, Isle Of Man, Northern Ireland and Eire are limited to 20kg and are available at a Premium rate. Please contact us on or via our help line if delivery is required outside these areas. Alternatively select ‘World-wide Delivery’ and a member of our sales staff will contact you regarding your options and costs.


We offer for the mainland UK , as standard, a FREE delivery service on all orders having a value greater than £200.00 (excluding VAT). For orders having a value less than £200.00 (excluding VAT) a carriage fee of £8.50 + VAT will be levied. Goods will be sent by a national carrier on their 1-2 working day standard service. Customers must understand that delays can always happen while their order is with the courier, for this reason we can not guarantee your order will be with you next day.

It is important that the customer ensures that all the delivery details are correct and that the customer or someone acting for the customer is able to sign for the delivery. Twistfix accept no liability for failed deliveries as a result of incorrect delivery details or the absence of any authorised signatory. Twistfix will attempt delivery to the recipient between the hours of between 8am and 6pm. If no one is available to receive the delivery an attempt may be made to leave the item with a neighbour. Alternatively the carrier may return the item to the sorting office and leave a calling card at the recipient's address to advise of the attempted delivery. It is the responsibility of the customer to arrange to collect the item from the depot or to arrange re-delivery with the carrier. Further information regarding Delivery can be read at our Terms & Conditions.


Items returned and received in their original condition and packaging within 14 days of delivery will be accepted for exchange or refund subject to a 20% restocking fee. You will be responsible for the shipping costs incurred in returning the goods and should ensure the items are adequately insured while in transit to us. You should email to request to return items.

Where the goods are being returned because they are faulty or are not the goods that were ordered then, subject to the goods being returned in re-saleable condition, Twistfix will refund the cost of return shipping. Further information regarding Returns can be read at our Terms & Conditions.