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Brackley, Banbury, Northampton, Milton Keynes, Bicester, Buckingham, Oxford, Aylesbury, High Wycombe, UK - Cavity wall insulation, loft insulation
Cavity wall insulation and loft insulation
Keeping your home WARM on the inside
01295 298221
 

Cavity wall insulation

Being properly insulated includes both loft and cavity wall insulation.

Most homes built since 1935 were built with a cavity wall construction. This means there is a gap between the two layers that make up the walls.

If you have not checked your insulation then chances are that you do not have cavity wall insulation, in fact, you may not have any insulation at all!! This is why 35% of all your heat is being lost through walls, and a further 25% through lofts.

Do something about cavity wall insulation now and start saving money as soon as it is installed! You are literally throwing hundreds of pounds away every year!

You can NOW bring your home up to the very latest specification for very little, and in some cases for FREE.

It seems too good to be true doesn't it ......click here for information on Government grants for cavity wall insulation.

For more information click on cavity wall insulation, click on one of the following:

What are the benefits of Cavity Wall Insulation?

Questions and answers about Cavity Wall Insulation

What are the benefits of Cavity Wall Insulation?

  • You will be warmer
  • Cut heat loss by 35%, and a further 25% if you also have a properly insulated loft.
    Click here to find out more about loft insulation
  • Take up Government grant of up to 100% Click here for your initial online Government Grant assessment
  • Purpose-made Instafibre white mineral wool is used in cavity wall insulation as it is totally reliable, effective and ozone-friendly
  • Very little financial outlay when compared to the real savings as everyone qualifies for a grant of at least 30-80%
  • Free for those on qualifying benefits, allowances and tax credits. Click here to see if you qualify
  • Any amount you do pay you are likely to quickly recover in cheaper fuel bills. So for an annual fuel bill of £600 you are likely to recover your contribution to the cost of cavity wall insulation within a year
  • Igloo Insulation employs only professional and approved technicians
  • All Igloo Insulation cavity wall work is supported by a Government backed 25-year materials guarantee
  • Adds value to your property. Beneficial feature others will approve of in your home
  • From 2007 all homeowners will need to produce a certificate of energy performance as part of the Home Condition Report of the property on the point of sale or rental
  • Fully insulating your home is better for the environment. Insulating your home helps Government to reach targets set for reducing domestic fuel emissions.
    (Click here for more information on reduction of Domestic fuel emissions)


To take advantage of the grants available at the moment, and for a FREE Energy Efficiency survey and NO OBLIGATION quotation call 0800 652 2550, or click here now and fill in our enquiry form.

Questions and answers about Cavity Wall Insulation

  • What is a cavity wall?
    The external wall of a house is constructed of 2 masonary (brick or block) walls, with a cavity (gap) of at least 50mm between. Metal ties join the 2 walls together
  • What is the material – does it smell?
    Material is environmentally friendly white mineral wool, it looks like cotton wool, is inert and has no odour
  • Will it spread damp?
    No it is a dry, waterproof material that allows the walls to breath
  • How is it installed?
    Blown in via small holes in the mortar under compressed air pressure
  • How much heat does it save?
    35% of heat is lost through the walls of un-insulated homes
  • How much does it cost?
    It depends upon whether you are in receipt of qualifying benefits - If so you will get a 100% grant, even if not you could still get over 60% grant.
  • Does the work have a guarantee?
    Yes – a government backed 25 year guarantee. All work carried out by approved Igloo employee Technicians
  • How long does it take?
    Approx 3 hours for a 3 bed semi
  • Is my house suitable?
    A free assessment is undertaken by our surveyor to determine suitability
  • Is there much mess?
    The process inevitably creates dust, which the technicians will clear up at completion
  • Does the technician have to come into the house?
    Yes both pre and post installation checks are necessary including all heating appliances, apart from these checks the work is normally carried out from outside
  • My house is semi-detached, how do you stop the material going into my neighbour’s cavity?
    Assuming your neighbours house is not insulated, the technician will insert a cavity barrier consisting of a bristle brush at the party wall line
  • What insulation material is used?
    We use White Mineral Wool because it is simple to install and requires no adhesives or other additives. The material has been tested, assessed and approved by the British Board of Agrement (BBA). The material also offers a 25 year CIGA guarantee
  • Are the technicians trained?
    Yes all technicians (team leaders) undergo training by the system designer and Igloo to ensure they are competent and carry a training card.
  • How do I know the walls are full?
    The system has a defined pattern of holes, which has been tested to verify that it results in a complete fill. There is a tolerance in the injection pattern so that the material will flow past the next injection hole
  • Is the insulation dense?
    No, as the insulation is contained in a masonry wall it doesn’t have to be dense. Indeed for insulation purposes a light density is better. Before installation the Technician will undertake a quality test to ensure the insulation will go into the wall at the right density. He will also note the amount of material used, to know that sufficient insulation has been installed
  • 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 sleeved. If they are not, the Technician will remove them and seal around them to stop them being blocked by the insulation material. Other vents, which may be redundant, such as cavity vents or vents that used to supply air to open fires in bedrooms may be closed off
  • Is any further ventilation needed?
    Ventilation is required to all rooms with either an open fire, gas fire over 7kw, log burner over 5kw and all decorative fuel effect fires. The requirement to fit additional ventilation will be detailed during the Free Energy Efficiency Survey
  • What about filling the holes?
    The Technician will fill all the injection holes with mortar to match the existing as closely as possible. He will use a mix that closely matches the existing colour and texture. On pebbledash finish, he will apply pebbles to the surface to match the existing finish. After weathering the holes are difficult to see
  • My house has painted areas?
    Normally we will paint the holes although a close match is unlikely due to weathering. It may be necessary to paint the area after the mortar has dried
  • Do I apply for the CIGA 25 Year Guarantee?
    No, we submit the Guarantee application. The Guarantee is then sent to you - keep it safe
  • Will my house be warmer?
    Yes – you should find that your home holds its temperature for longer; therefore the time between heating cycles may be longer. The result should be a more even temperature throughout the house and/or a reduced fuel bill
  • How long will the insulation last?
    For the life of the building – the BBA say so




Please click here now to book a FREE energy efficiency survey