HOW TO HIRE · PLUMBING & HEATING · CHECKED OCTOBER 2026
How to hire a boiler replacement in Ireland
The checks, the questions and the paperwork.
A boiler replacement in Ireland costs €2,500–€4,500 per install, typically around €3,300. 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.
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THE 60-SECOND VERSION
Hiring a boiler replacement 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 — post-Installation Support — after the installation, you will receive guidance on how to operate your new boiler efficiently.
- Will I get declaration of Conformance Certificate, and when?On the day the work is finished and tested, not posted on later — old Boiler Removal — the service involves safely disconnecting and removing your old boiler.
- How does brand of the boiler change the price?It is checked on the visit because it changes the method. — ask before the quote rather than after.
- How does installation complexity change the price?Intricate work needs a steadier hand and more time. — ask before the quote rather than after.
- How does any necessary upgrades to existing systems change the price?Poor condition adds preparation before the work itself starts. — 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 — post-Installation Support — after the installation, you will receive guidance on how to operate your new boiler efficiently.
A good answer: On the day the work is finished and tested, not posted on later — old Boiler Removal — the service involves safely disconnecting and removing your old boiler.
A good answer: It is checked on the visit because it changes the method. — ask before the quote rather than after.
A good answer: Intricate work needs a steadier hand and more time. — ask before the quote rather than after.
A good answer: Poor condition adds preparation before the work itself starts. — ask before the quote rather than after.
A good answer: Initial Assessment — A qualified technician will conduct a thorough assessment of your current boiler system — get the exclusions named in the quote, because a boiler replacement job is priced on what was agreed and not on what was assumed.
A good answer: Expect public liability; ask who the insurer is — boiler Upgrade for Renewable Energy — upgrading an existing boiler system to integrate renewable energy sources, such as solar thermal systems, for improved sustainability.
Getting the quote right
- Brand of the boiler — it is checked on the visit because it changes the method.
- Installation complexity — intricate work needs a steadier hand and more time.
- Any necessary upgrades to existing systems — poor condition adds preparation before the work itself starts.
- Gas lines — it has to be settled before anything can be ordered.
- 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: brand of the boiler — it is checked on the visit because it changes the method
- They will not talk about it: installation complexity — intricate work needs a steadier hand and more time
- They will not talk about it: any necessary upgrades to existing systems — poor condition adds preparation before the work itself starts
- A price for the boiler replacement before anyone has asked the size, the access or the condition of what they are working on
What a boiler replacement costs: €2,500–€4,500 per install
The figures are for the job, per install, and a quote for your own is the only number that binds anyone. Combination boiler replacement and System boiler replacement each carry their own band. Boiler Replacement 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 replacements 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 firstBrand of the boiler — it is checked on the visit because it changes the method — that is what the boiler replacement is judging on the first visit, and a price given without it is a guess.
- Agree what is being doneInstallation complexity — intricate work needs a steadier hand and more time — 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 systems — poor condition adds preparation before the work itself starts — and anything found on the day that was not in that is priced before it is started.
- Check it togetherGas lines — it has to be settled before anything can be ordered — walked against the written scope rather than against the feeling of it, while the boiler replacement 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 new boiler for long-term savings.
- Initial Assessment
- A qualified technician will conduct a thorough assessment of your current boiler system.
- Old Boiler Removal
- The service involves safely disconnecting and removing your old boiler.
- Post-Installation Support
- After the installation, you will receive guidance on how to operate your new boiler efficiently.
- Combination Boiler Replacement
- This involves replacing an existing combination boiler, which provides both heating and hot water, with a new model that offers improved efficiency.
- Regular Boiler Replacement
- Replacing a regular boiler that uses a cold water tank, with a focus on improving overall performance and efficiency.
- High-Efficiency Boiler Installation
- Installing a high-efficiency boiler designed to reduce energy consumption and lower utility bills while providing reliable heating.
AFTER
When the job is done
Hiring a boiler replacement: questions people ask
The cost can vary based on the type and brand of the boiler, installation complexity, and any necessary upgrades to existing systems. Additional factors include local labour rates and disposal fees for the old unit.
Typically, a boiler replacement can take anywhere from 4 to 8 hours, depending on the complexity of the installation and any additional work required. Larger systems or complicated configurations may take longer.
Yes, it is essential to hire a qualified specialist for boiler replacement, as they must comply with safety regulations and standards. This includes licensed gas engineers for gas boilers and certified electricians for electrical connections.
Many plumbing and heating services offer emergency or same-day replacements, but availability can vary. It's best to contact local providers directly to confirm if they can accommodate your urgent needs.
Out-of-scope work may include extensive plumbing or electrical upgrades, structural modifications, or repairs to existing heating systems. It's important to discuss any potential additional work with your contractor before starting.
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 replacements 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