Certainfil Cavity Insulation in Northern Ireland
Certainfil Cavity Insulation Limited is a second generation family business specialising in installation of Bonded Bead Cavity Wall and Fibreglass quilting loft insulation.

As KIWA certified installers our cavity wall installations come with a 25 year Qualitymark Protection guarantee and our loft installations are completed to Building Control requirements.

An un-insulated home can lose 35% of its heat through walls and 25% through the loft.

You can save up to 40% on your fuel bills and it benefits the environment as well as your pocket.

Properly insulating your home can dramatically reduce heating bills and increase warmth. The risk of black mould growth developing within the house is also reduced.

Problem Free Cavity Wall Insulation
Certainfil Cavity Insulation Limited uses a high grade silver graphite expanded polystyrene bonded bead (EPS) system of installation. Silver graphite bead is typically 20% more effective at reducing heat loss than the older “white” bead that may also be offered by other installers.

Beads arrive at your home already manufactured to the density required by the Agrément Board and they are simply blown into the wall from the truck and sprayed with an adhesive so that they form a bonded mass. Because installation of cavity wall insulation is done externally there is no need for anyone to be at home during the installation which is usually completed in one day.

Loft Insulation
Current building control regulations require approximately 300 mm (12 inches) of insulation to be installed to roofspace areas. Most properties will have some insulation installed to their roofspace (often 100 mm) and therefore homeowners often think they are adequately insulated.

The regulations were amended as part of the overall plan to meet the EU CO2 emissions targets for Northern Ireland and the UK by addressing the poor thermal efficiency of homes, to reduce heat loss and therefore improve energy efficiency and reduce waste. The additional benefit to the homeowner is reduced fuel bills and a warmer home.

What is Partial Fill Cavity Wall Insulation?

Traditional Cavity Wall Insulation (Built between 1934 & 1984).

(TRADITIONAL FILL)
After 1934 houses where built with empty cavity walls , these cavities range traditionally from 50mm to 75mm wide. The vast majority of this house type have had insulation installed in the cavity over the last 40 years.

Partial Fill Cavity Wall Insulation (Built after 1985).

Some builders started to built in a solid board around 1985 onwards This board was approx 30mm and fitted against the inner leaf of the cavity, at this time cavities increased from 75mm to 100mm. In these cases this left a 70mm space of the cavity with no insulation.

Many houses built between 1985 until 2008 have a 30, 40 or 50mm board fitted in a 100mm cavity. If these house were built to today’s building standards they would have double or even triple the amount of insulation in the wall.

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