We get asked a lot of questions on our home energy efficiency solutions; please see below for some of the most common. Anything else you may be unsure of us, just call 1890 315315 or email our team on info@cosihomes.ie.

Because we use the latest system on the market, the holes we require to drill are 10mm diameter and these can be drilled in the mortar joints between the brickwork on your house and filled afterwards so they are not noticeable.
No the holes are drilled externally which in itself creates a small amount of dust, other than that it is an extremely clean solution.
A typical house can be completed in one working day.
Extensive tests have shown that our Graphite Silver Bead cavity wall insulation does not allow water to pass across the cavity. Before installing the insulation, the empty wall cavities are inspected for obstructions with a special tool called a boroscope. Any obstructions are noted and cleared by the installers before the insulation is injected.
The purpose of the cavity is to prevent rain that soaks into the outside brickwork from crossing to the inside of the wall. The cavity interrupts any water that soaks through the brickwork and drains it to the bottom of the wall where it drains to the outside. Injecting mineral wool insulation into the cavity still allows water to drain to the bottom of the wall. Our Graphite Silver Bead cavity wall insulation contains a water repellent and so does not absorb water. Extensive tests have shown that Knauf Supafil cavity wall insulation does not cause water to pass across the cavity.
Yes, your house can still be insulated. The installer will need to form a hole at the top and bottom of the wall to insert a spacer at the junction between the two houses. This prevents insulation being blown into the cavity of your neighbour’s house.
Please refer to the Grants section of our website where all information and links are available to apply for a grant immediately.
Most of the controls do not require any client input. For the ones that do we only use the most modern, simplest controls agreed with the client. We always make sure the client is familiar with the controls before we leave the house, and remember we are only a phone call away!
With most systems there is no need to work on any walls. If there is we have a full range of wireless controls that allow for simple installation with no mess.
99% of systems are compatible with the controls outlined above. Our experienced installers will be able to confirm this on completion of the survey.
Extensive tests have shown that our Graphite Silver Bead cavity wall insulation does not allow water to pass across the cavity. Before installing the insulation, the empty wall cavities are inspected for obstructions with a special tool called a boroscope. Any obstructions are noted and cleared by the installers before the insulation is injected.
Yes we have a range of products that can be used to insulate around all sorts of attic hatches and ladder accesses. They are all fully certified and SEAI approved.
No. There is a requirement that you apply for at least €400 of a grant and this means that you will have to carry out at least one other measure to be able to avail of the Grant.