Warm-A-Wall Thermal Insulation System for Insulating Internal Wall Surfaces

Price incl. VAT
(20 items in stock)

Warm-A-Wall Internal Insulation

Warm-A-Wall is a new form of thermal and acoustic internal insulation on a roll.  The insulated wall lining is 10mm thick and is made from recycled polyurethane.

This simple to use solution to providing internal wall insulation, without major loss of floor area, is applied just like wallpaper but with the use of a special adhesive.  Once hung the insulation is then given a plaster skim to provide a permanent and robust finish.  It can be used on the inside of any perimeter wall to increase the insulation value, even if external solid wall insulation or cavity wall insulation has already been fitted.

The product immediately lowers the heat transfer coefficient of a wall and gives up to 28% energy saving over walls that are uninsulated; for example, the U-value of a solid wall is reduced from 2.1 W/(m²K) to 1.51 W/(m²K) once lined with Warm-a-Wall.   The insulation is ideal for use in damp and unventilated areas as an anti-condensation solution; the warmer wall surface curbing the potential for condensation and mould growth issues.

Insulation dimension: 15m x 0.5m x 0.01m – supplied as part of a kit containing one 7.5 square metre roll of polyurethane insulation and 10 litres of special adhesive.

Benefits of Warm-A-Wall Insulation:

  • 28% improvement in Energy Efficiency on solid walls
  • Reduces surface condensation 
  • Inhibits mould growth 
  • Easy to install 
  • Skim plastered for a robust finish 
  • Re-cycled product helps the environment 
  • Reduced CO2 emissions 
  • Solid wall U-value of 2.1 brought down to 1.51
  • Energy Savings Trust Approved 

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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.