HOW TO HIRE · TRADES & CONSTRUCTION · CHECKED OCTOBER 2026
A window & double glazing installer in Ireland costs €450–€1,500 per window, typically around €800. Here is how to check that in a minute, what to ask before you book, and what you must be handed when the job is done.
THE 60-SECOND VERSION
BEFORE YOU BOOK
CIRI is a VOLUNTARY register today. The Regulation of Providers of Building Works and Miscellaneous Provisions Act 2022 was signed on 5 July 2022 and S.I. 429/2022 commenced parts of it on 29 August 2022; the Construction Industry Federation was appointed registration body on 16 January 2023. Registration is NOT yet mandatory: the divisions regulations had not been drafted as of a May 2025 Dáil answer, and CIRI itself projects mandatory registration from 2027. So being absent from CIRI breaks no law in 2026 — and being on it is still the only independent check of a builder that exists here.
Search the Construction Industry Register Ireland for the name or the registration number before you agree a price. ciri.ie →
Issued by the assigned certifier and the builder, where the work needed a commencement notice on completion, before the building is occupied. It matters because it is lodged on the statutory register and is what a buyer's solicitor looks for; work done without one surfaces on sale.
Agree before the work starts that you will be handed a certificate of compliance on completion, and keep it with the house papers.
Expect public liability and, for anything structural, professional indemnity from whoever designed it. From a company, ask for the insurer, the limit and the VAT number, and ask who actually attends: the team that turns up may be employed, subcontracted or both, and only one of those is supervised by the firm you are paying.
Ask to see the current certificate of insurance — the insurer's name, the limit and the date it runs to.
Under the Consumer Rights Act 2022 a trader must tell you they are a trader, and your consumer rights — work carried out with reasonable skill and care, and a cooling-off period on a contract agreed in your home or online — apply to traders and not to private sellers. On Locufy the trader status is shown on the profile.
Look for the trader badge on the Locufy profile, and ask anyone else for it in writing before you agree a price.
VAT at 13.5%, the reduced rate Revenue publishes for this service. Ask whether the price you were given includes it. A trader under the €42,500 registration threshold does not charge it; one over it must, and must show it separately.
Ask whether the figure you were given includes it, and for the VAT number if they are registered — Revenue publishes the rate for this service. revenue.ie →
A good answer: A number you can look up yourself before you agree a price — consultation and Assessment — before installation, installers typically conduct a consultation to assess the property and recommend suitable window types.
A good answer: On the day the work is finished and tested, not posted on later — installation Services — window and double glazing installers provide a range of installation services, including fitting new windows, replacing old ones, and installing double-glazed units.
A good answer: It is the reason a site visit is usually offered first. — ask before the quote rather than after.
A good answer: It changes the hours on site, and the hours are most of the price. — ask before the quote rather than after.
A good answer: Years of use leave more to put right than a recent job. — ask before the quote rather than after.
A good answer: Bay Window Installation — installing new bay windows to enhance the visual appeal and light entry in a room — get the exclusions named in the quote, because a window & double glazing installer job is priced on what was agreed and not on what was assumed.
A good answer: Expect public liability and, for anything structural, professional indemnity from whoever designed it — sash Window Restoration — restoring traditional sash windows to improve functionality and energy efficiency while maintaining their historical character.
The figures are for the job, per window, and a quote for your own is the only number that binds anyone. Single glazing replacement and Double glazing installation each carry their own band. Window & Double Glazing Installer price guide →
Guide prices compiled by the Locufy team from published Irish and UK provider price lists and 2026/27 cost guides. Updated 2026.
KNOW WHAT TO LOOK FOR? NOW FIND ONE
ID checked, trader status and one score from every review — on the card, before you message anyone. Nearest first. No account needed to look.
Or post the job free and let them come to you.
AFTER
MONEY BACK
Who: Owner of an older home, with work by an SEAI-registered contractor and a BER after the works.
Official details on seai.ie →Who: People aged 66 or over (younger in cases of hardship) in poor housing conditions, for essential repairs such as roofing, rewiring, heating, windows and doors, or water and sanitary facilities.
Official details on gov.ie →Schemes change. The amounts above were checked on the dates shown; the official page is the one that counts.
The cost of window installation can be influenced by factors such as the type of windows being installed, the complexity of the installation, and any additional work needed, like removing old windows or repairing frames. Larger or custom windows typically incur higher costs.
The duration of a window installation can vary depending on the number of windows being installed and the complexity of the job. Generally, a standard installation for a few windows can take anywhere from a few hours to a full day.
While general window installers can handle most double glazing jobs, it's advisable to hire qualified specialists for complex installations, especially those involving structural modifications or regulated electrical work. Always check credentials and experience.
Same-day installation services may be available, but they depend on the installer’s schedule and the availability of the required materials. It's best to inquire directly with the service provider for urgent needs.
Yes, many window installers offer package deals if you book multiple related jobs, such as installing windows and doors together. This can often lead to cost savings and a more efficient use of time.
Window installers usually focus on installation, repair, and maintenance of windows. Services such as full home renovations, electrical work unrelated to window fittings, or extensive structural changes are typically out of their scope.
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