Official grant values
The current SEAI windows grant is €4,000 detached, €3,000 semi-detached, €1,800 mid-terrace and €1,500 apartment. External doors are €800 each, up to 2.
Windows and doors
Windows and doors grant Ireland: what homeowners should know
Windows and doors are one of the most searched upgrades because the comfort and appearance change is easy to understand. From March 2026, SEAI has a dedicated individual windows and doors grant, but the grant conversation is still often misunderstood, especially when homeowners assume the grant covers the full package cost.
Usually a package job: windows and external doors are often handled together by the same contractor.
Grant support still leaves a homeowner contribution: this is usually not a near-free upgrade in the way attic or cavity work can sometimes feel.
Best read in context: windows and doors often make most sense when the rest of the fabric plan is also considered.
Why this upgrade still matters
People feel the difference from good windows and doors quickly. Comfort, drafts, noise and general finish can all improve. That is why windows and doors remain such a strong search topic even when they are not the cheapest job after grant support.
Where people get caught out
The most common mistake is assuming that a good grant amount means a low net job cost. With windows and doors, the grant helps, but homeowners should still expect a meaningful remaining spend in most real packages.
Official March 2026 windows and doors grant facts
Main readiness rules
The home must be built before 2011, and SEAI says the property must already have good attic and wall insulation before this measure can qualify.
Post-works conditions
SEAI says new windows and doors must be high-performing at 1.4 U-value or better, and a post-works BER plus HLI 2.3 or better condition applies.
Cost honesty
SEAI now publishes the official grant values, but it has not yet published a matching windows-and-doors median-cost table. That is why HomeGrants.ie shows a clearly labelled package guide range rather than an official SEAI median cost, using current Irish price guides and installer package pages listed on our sources page.
How to think about a windows and doors package
Think in package terms
Windows and external doors are often quoted together, so the most practical way to understand the job is as a package rather than a single-line item.
Ask what is included
Frame specification, glazing performance, finishing work and any door additions can change the final package value quickly.
Compare with fabric-first upgrades
Many homeowners get more immediate value from attic or cavity wall insulation first, then come back to windows and doors when the rest of the envelope is in better shape.
Use the checker first
The checker gives a quicker practical view of grant support and typical homeowner spend before you decide whether you want contractor follow-up.
Check likely windows and doors support before taking calls
Use the HomeGrants.ie checker if you want to understand likely grant support and the typical homeowner contribution before local SEAI-registered installers contact you.
Frequently asked questions
Are windows and doors usually done together?
Very often, yes. That is how many homeowners and contractors approach the job because it suits both the practical install and the finished result.
Does the grant usually cover the full windows and doors package?
No. The grant supports the package, but it usually does not eliminate the remaining homeowner cost.
Where do I check the latest SEAI grant?
Use the official SEAI windows and doors grant page before assuming the current grant value or readiness rules.