External Wall Insulation Frequently Asked Questions
Who are Dyson Insulations?
Dyson Insulations are a leading national installer of insulation, heating solutions and renewable technologies. With depots around the country, we provide national coverage for our services.
Why choose Dyson Insulations?
Here at Dyson Insulations, we set the standards. We are dedicated to providing an excellent service to our customers.
We guarantee our customers an impeccable service from start to finish. From the moment we take your enquiry to the completion of your installation and beyond.

Will the work be disruptive?
There will be minimal disruption as the work is carried out from outside. Scaffolding will be required for properties with wall areas higher than one storey, and drilling and mixing machines will create noise during those processes. Protective film is applied to the outside of the windows during the day, this will restrict visibility from the window. The applicators will ensure that the area around the home is left clean and tidy on completion of works each day.
How long will it take to install?
An average installation will take up to 2 weeks including erection and dismantling of scaffolding. The render and finishing processes are weather dependent, and may be delayed in very cold weather, rain or excessively hot weather.
Will you need to use my electricity or water?
We do not normally require use of your electricity as we have our own generator on the van. We do, however, require a water supply for mixing and washing down.
Will I have to maintain and clean the system myself?
The insulation systems are generally maintenance free, although you may choose to wash down with soapy water as you would with any rendered wall. If you have chosen a brick finish, this would be treated as a normal brick wall with regards to cleaning requirements. The insulated walls should not be jet-washed or power-washed at any time.
Can I fix items to my walls after they are insulated?
Any satellite dishes, hanging baskets, gate posts etc which are identified at survey stage, will have timber pattresses fitted to support the fixings after the insulation is complete. Should you decide to fix other items at a later stage, where no timber pattress has been fixed, you should ensure that an appropriate fixing, long enough to pass through the insulation into the original wall, is used to avoid damaging the system.
How long will the external wall insulation last?
The systems are BBA tested for life-expectancy and achieve a rating in excess of 30 years.
Is the system guaranteed?
Yes, both labour and materials are covered by a manufacturer’s 10 year Guarantee. This can be extended for a longer period but is subject to an additional cost.





