I propose to take Questions Nos. 151 and 157 together.
We have a few questions on the SEAI grants, which we have revised to make them more accessible for families. More than 244,000 homes across the country have been retrofitted. We have invested approximately €1.7 billion in retrofitting to deliver permanent savings for households, to reduce emissions and energy use and to make homes warmer, safer and healthier. The national retrofitting plan, along with the new and enhanced set of measures I have mentioned, will continue to make home energy upgrades more accessible and affordable. That is the main reason we are breaking up those grants. We are going to protect the warmer homes scheme, which provides 100% grants. We have done approximately 32,700 homes in that space. We are targeting more than 11,000 this year. Further work needs to be done on the lead times from date of application to completion of work. I have met the SEAI on that too.
Homeowners availing of the other grants we offer can take a step-by-step approach. Even if someone is waiting for the warmer homes scheme, they can apply for grants in the interim. They can apply for attic insulation, wall insulation and start to break the grants down. I want to see more people accessing it. I recognise that costs have increased since 2022. That is why we have upped the grant limits. We have upped the grant levels for cavity wall insulation and attic insulation. These higher fixed grants will substantially reduce costs for homeowners. To help first-time buyers of existing homes to get on the energy upgrade journey quickly and at minimal cost, I have brought forward a specific grant for attic insulation for these new homeowners. This will support first-time buyers who purchase an existing property and who might not be in a financial position to undertake a complete energy upgrade.
The new heat pump system grant will reduce the costs associated with a whole house heating system upgrade and accelerate the uptake of heat pumps. A fixed amount grant for installing a heat pump system will be introduced. This grant is significant. It is €6,500 for the heat pump, €2,000 towards the radiator upgrades and pipework and a new renewable heating bonus of €4,000. That brings the maximum grant up to €12,500. That will also apply to applications already in train and not already paid out. For the first time, homeowners can access a windows and doors grant as an individual measure for the installation of energy-efficient windows and doors to replace older ones that are performing poorly. That is for homes where the building fabric will meet, or already meets, a specified minimum performance standard. Many homes already meet this standard. We estimate that approximately 200,000 homeowners can apply right now for windows and doors grants of approximately €4,600. That is €800 per door and €3,000 for windows. They are significant amounts. The measure is designed to help homeowners to improve comfort and energy efficiency, while ensuring homes meet the building fabric standard suitable for our climate action targets.
I have been advised by the SEAI that the register of windows and doors contractors has now been published on its site. There are 104 contractors registered as of last week. When applying for individual measures, homeowners will now have the option of applying themselves and having the grant refunded once works are complete, or applying themselves and having the grant paid to the bank account of their contractor, who can choose to offer them a discount upfront. They can basically charge net, and they will claim it back. They can also apply through a participating one-stop shop or energy partner, which will carry out the works for the homeowners and pass on the grant savings as a discount on the works. All of that is now up on the SEAI website.