HOW TO HIRE · PLUMBING & HEATING · CHECKED OCTOBER 2026
How to hire a boiler installer in Ireland
The checks, the questions and the paperwork.
A boiler installation in Ireland costs €2,300–€4,900 per install, typically around €3,200. 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.
- Search and compare — no account needed
- Nearest to you first
- One score from Google, Trustpilot and Locufy reviews
THE 60-SECOND VERSION
Hiring a boiler installer in five steps
- Are you on the Registered Gas Installer scheme, and what is your number?A number you can look up yourself before you agree a price — installation Process — the installation process includes removing the old boiler, fitting the new unit, and connecting it to the existing plumbing and gas lines.
- Will I get declaration of Conformance Certificate, and when?On the day the work is finished and tested, not posted on later — boiler Selection — choosing the right boiler is crucial for efficiency and performance.
- How does type of boiler selected change the price?The grade chosen is the single biggest decision in the quote. — ask before the quote rather than after.
- How does complexity of the installation change the price?A complicated brief needs a conversation before any work starts. — ask before the quote rather than after.
- How does any necessary upgrades to existing plumbing or electrical systems change the price?Problems hidden underneath are found once the work begins. — ask before the quote rather than after.
BEFORE YOU BOOK
Check before you book
Registered Gas Installer (RGI) Scheme
Restricted to Registered Gas Installer (RGI): installing, servicing or repairing a gas boiler; any work on gas pipework or a gas appliance; commissioning a gas appliance.
Search the Registered Gas Installer scheme for the name or the registration number before you agree a price. rgii.ie →
Declaration of Conformance Certificate
Issued by the Registered Gas Installer on completion of the gas works. It matters because it is the record that the work conforms to the standards, and it is asked for on sale, remortgage and insurance.
Agree before the work starts that you will be handed declaration of conformance certificate, and keep it with the house papers.
Insurance
Expect public liability; ask who the insurer is. 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.
Trader or private seller
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
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 — installation Process — the installation process includes removing the old boiler, fitting the new unit, and connecting it to the existing plumbing and gas lines.
A good answer: On the day the work is finished and tested, not posted on later — boiler Selection — choosing the right boiler is crucial for efficiency and performance.
A good answer: The grade chosen is the single biggest decision in the quote. — ask before the quote rather than after.
A good answer: A complicated brief needs a conversation before any work starts. — ask before the quote rather than after.
A good answer: Problems hidden underneath are found once the work begins. — ask before the quote rather than after.
A good answer: Initial Consultation — A thorough assessment of your heating needs and existing system is conducted during the initial consultation — get the exclusions named in the quote, because a boiler installer job is priced on what was agreed and not on what was assumed.
A good answer: Expect public liability; ask who the insurer is — back Boiler Installation — involves fitting a back boiler that is situated behind a fireplace, providing heating and hot water in a compact design.
Getting the quote right
- Type of boiler selected — the grade chosen is the single biggest decision in the quote.
- Complexity of the installation — a complicated brief needs a conversation before any work starts.
- Any necessary upgrades to existing plumbing or electrical systems — problems hidden underneath are found once the work begins.
- Initial Consultation — it changes both what is used and how long it takes.
- In writing before anyone starts — a message on Locufy counts
- What is NOT included, named
- Who actually attends, and whether they are employed or subcontracted
- The VAT number, and whether it checks out on the Revenue register
Walk away if
- They are not on the Registered Gas Installer scheme, or the number does not resolve to the name on the quote
- No Declaration of Conformance Certificate is offered, or you are told you do not need one for work of this kind
- They will not talk about it: type of boiler selected — the grade chosen is the single biggest decision in the quote
- They will not talk about it: complexity of the installation — a complicated brief needs a conversation before any work starts
- They will not talk about it: any necessary upgrades to existing plumbing or electrical systems — problems hidden underneath are found once the work begins
- A price for the boiler installer before anyone has asked the size, the access or the condition of what they are working on
What a boiler installer costs: €2,300–€4,900 per install
The figures are for the job, per install, and a quote for your own is the only number that binds anyone. Combi boiler installation and System boiler installation each carry their own band. Boiler Installation 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
Boiler installers near you, with the badges that matter shown
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.
- Look firstType of boiler selected — the grade chosen is the single biggest decision in the quote — that is what the boiler installer is judging on the first visit, and a price given without it is a guess.
- Agree what is being doneComplexity of the installation — a complicated brief needs a conversation before any work starts — put in writing before anyone starts, because it is the document you both read back at the end.
- The work itselfAny necessary upgrades to existing plumbing or electrical systems — problems hidden underneath are found once the work begins — and anything found on the day that was not in that is priced before it is started.
- Check it togetherInitial Consultation — it changes both what is used and how long it takes — walked against the written scope rather than against the feeling of it, while the boiler installer is still there.
- What you are handedDeclaration of Conformance Certificate, the invoice and any guarantee on the workmanship and the parts, consider the energy efficiency rating of the boiler, as this will impact ongoing fuel costs.
- Initial Consultation
- A thorough assessment of your heating needs and existing system is conducted during the initial consultation.
- Boiler Selection
- Choosing the right boiler is crucial for efficiency and performance.
- Installation Process
- The installation process includes removing the old boiler, fitting the new unit, and connecting it to the existing plumbing and gas lines.
- Combi Boiler Installation
- Involves fitting a combination boiler that provides both heating and hot water directly from the unit, ideal for smaller homes.
- System Boiler Installation
- This job includes installing a system boiler that requires a hot water cylinder but does not need a cold water tank, suitable for larger households.
- Regular Boiler Installation
- Focuses on fitting a traditional boiler that requires both a hot water cylinder and a cold water tank, typically found in older homes.
AFTER
When the job is done
Hiring a boiler installer: questions people ask
The cost of boiler installation can vary based on the type of boiler selected, the complexity of the installation, and any necessary upgrades to existing plumbing or electrical systems. Additional costs may arise from permits or structural modifications.
A standard boiler installation usually takes between 1 to 3 days, depending on the complexity of the job and whether any additional work is required. Factors such as the type of boiler and existing infrastructure can affect the overall timeline.
Same-day boiler installation may be available, particularly in emergencies, but it is subject to the availability of both the installer and the required equipment. It's advisable to contact local professionals to check for urgent service options.
Yes, many plumbing and heating professionals offer package deals for multiple services, such as boiler installation and radiator replacements. This can often result in cost savings and a more streamlined process.
Out of scope work may include extensive plumbing or electrical upgrades not related to the boiler, as well as cosmetic renovations such as tiling or wall repairs. It's important to clarify the scope of work with your installer beforehand.
Search the name or the registration number. If the number does not resolve to the name on the quote, stop there.
MORE GUIDES
More hiring guides in plumbing & heating
Boiler installers near you
Sources — checked October 2026
- CRU — RGI and Safe Electric schemes
- RGI — find a Registered Gas Installer
- CCPC — your rights when you buy a service
- Consumer Rights Act 2022
- Revenue — BOILERS - MAINTENANCE/REPAIR ( Private dwellings/Non-residential immovable goods ) — Reduced rate
- Revenue — current VAT rates (effective 1 January 2026)
- Revenue — VAT thresholds: €42,500 for a person supplying services only