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Cavity Wall Insulation - FAQ's

 

How does Cavity Insulation work?

 

A series of small holes are bored into the external walls of your home. Then a special test is carried out which involves looking into the cavity to establish the suitability for cavity for insulation.

 

Once this is determined the insulation along with an adhesive are pumped into the cavity using specialist equipment and the holes are then filled on completion. The entire Cavity is filled with Insulation and will make serious inroads into reducing your heating bills.

 

 

Do I have to do anything before installation takes place?

 

The drilling process does create some vibration – so it would be wise to remove ornaments, particularly on external walls, for safety and peace of mind.

 

The technician will need to gain access to all walls, so he will need to get inside attached garages, lean-to-sheds, conservatories etc. If you have a wall right on a boundary, you may like to mention to your neighbour that the technician will need to go onto their property.

 

Does the technician have to come into the house?

 

The technician must undertake checks before and after installation, including any heating appliances, so it is essential that they have access inside the property.

 

Is there much mess?

 

The drilling process inevitably creates a little dust. The technician will go around the outside of your home at the end of the installation and clean up. It is important to note however, the conditions and nature of our weather can at times hamper even the most determined attempts.

 

Please, take the time to speak with our staff and be sure that you are happy with the finished product.  We also believe it wise to remove vehicles from the drive and items close to the walls. In return this will give the technician better access for equipment and tools.

 

How do I know the walls are full?

 

This system of cavity wall insulation has a defined pattern of holes, during your survey, we took measurements of your home including a depth gauge and inspection of the cavity to be filled. From these measurements we know the amount of material required to correctly fill your walls.

 

The technician will, therefore, check and record this data and match this against the quantity of insulation used. 

 

What about the ventilators that are in the external wall?

 

Ventilators supplying combustion air to fuel burning appliances must be safeguarded. Similarly ventilators at ground level that ventilate below timber floors must be safeguarded.

 

The technician will investigate them to check they are already sleeved. If they are not, the technician will remove them and seal around them to stop them being blocked by the insulation. Other vents, which may be redundant, such as cavity vents or vents that are in bedrooms may be closed off.

 

What about filling the holes?

 

The technician will fill all the injection holes with mortar that closely matches the existing colour and texture.

On some older properties or weathered facades it may take several months for the newness of the mortar to blend, but these holes are very small and they will blend as the weather effects them.

 

On pebbledash finishes, they will apply pebbles to the surface to match the existing finish, as close as possible.

 

But my house has painted areas?

 

Normally, we will not paint the injection holes. Unfortunately, even if the original paint is used, it may not match due to weathering. So it may be necessary for you to consider painting the area, after the mortar has dried.

  

Will my house be warmer?

 

Insulation dramatically reduces heat loss through the insulated wall therefore you will be able to achieve the same temperature in your home by turning your thermostat down by a little.  Your property should still achieve the desired warmth because the house will retain its temperature for longer.

 

It can also be noted that during the summer the insulated cavity will prevent some of the suns heat from entering the walls, therefore, keeping your home cooler.

 

Are there any maintenance or servicing requirements?

 

No, not to the cavity wall insulation, but normal building maintenance is needed.

 

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