HOW TO HIRE · PLUMBING & HEATING · CHECKED OCTOBER 2026
How to hire a water tank installer in Ireland
The checks, the questions and the paperwork.
A water tank installation in Ireland costs €300–€1,000 per install, typically around €550. 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 water tank installer in five steps
- Are you a trader, and can I see that in writing?No register covers water tank installer work, so trader status is what your consumer rights hang on — tank Selection — choosing the right type of water tank is crucial.
- How does type of tank change the price?The style chosen can double the hours on the same job. — ask before the quote rather than after.
- How does installation complexity change the price?It is the part of the job hardest to judge from a photograph. — ask before the quote rather than after.
- How does any necessary modifications to existing plumbing change the price?A job left too long costs more than one done on time. — ask before the quote rather than after.
- What is not included?Site Assessment — A professional plumber will conduct a thorough assessment of your property to determine the best location for the water tank — get the exclusions named in the quote, because a water tank installer job is priced on what was agreed and not on what was assumed.
BEFORE YOU BOOK
Check before you book
No register applies
NO REGISTER APPLIES TO PLUMBING ITSELF. Anyone may trade as a plumber. The line that does exist is gas: any work on a gas appliance or gas pipework is restricted to the Registered Gas Installer scheme, and a plumber who is not on it may not touch the gas side of a boiler however competent they are at everything else. Ask which side of that line your job falls on before you book.
Look for the trader badge and the ID-checked badge on the Locufy profile — both are checked by us, not claimed by the provider.
What to check instead
Whether any part of the job touches gas — if it does, the gas register applies and a plumbing qualification is not a substitute; A trade qualification or apprenticeship, which is voluntary but checkable; Public liability insurance, and who the insurer is; Whether they carry the parts or price them separately; A written scope naming what is isolated, drained and reinstated; How a leak discovered mid-job changes the price, agreed in advance.
Ask for each of these before you agree a price, and get the answers in the same message as the quote.
Insurance
Expect public liability, and ask specifically about water-damage cover. 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: No register covers water tank installer work, so trader status is what your consumer rights hang on — tank Selection — choosing the right type of water tank is crucial.
A good answer: The style chosen can double the hours on the same job. — ask before the quote rather than after.
A good answer: It is the part of the job hardest to judge from a photograph. — ask before the quote rather than after.
A good answer: A job left too long costs more than one done on time. — ask before the quote rather than after.
A good answer: Site Assessment — A professional plumber will conduct a thorough assessment of your property to determine the best location for the water tank — get the exclusions named in the quote, because a water tank installer job is priced on what was agreed and not on what was assumed.
A good answer: Expect public liability, and ask specifically about water-damage cover — expansion Tank Installation — installing an expansion tank to accommodate thermal expansion in hot water systems, preventing pressure build-up.
A good answer: A written scope and a price before the water tank installer starts, and an itemised invoice after — water Tank Relocation — moving an existing water tank to a new location within the property, requiring careful planning and plumbing adjustments.
Getting the quote right
- Type of tank — the style chosen can double the hours on the same job.
- Installation complexity — it is the part of the job hardest to judge from a photograph.
- Any necessary modifications to existing plumbing — a job left too long costs more than one done on time.
- Site Assessment — a mobile visit costs more than going to them.
- 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 will not talk about it: type of tank — the style chosen can double the hours on the same job
- They will not talk about it: installation complexity — it is the part of the job hardest to judge from a photograph
- They will not talk about it: any necessary modifications to existing plumbing — a job left too long costs more than one done on time
- A price for the water tank installer before anyone has asked the size, the access or the condition of what they are working on
- Cash only, or a large deposit before anything at all has started
- No written quote, or one that moves once the water tank installer has begun
What a water tank installer costs: €300–€1,000 per install
The figures are for the job, per install, and a quote for your own is the only number that binds anyone. Hot water tank installation and Cold water tank installation each carry their own band. Water Tank 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
Water tank 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 tank — the style chosen can double the hours on the same job — that is what the water tank installer is judging on the first visit, and a price given without it is a guess.
- Agree what is being doneInstallation complexity — it is the part of the job hardest to judge from a photograph — put in writing before anyone starts, because it is the document you both read back at the end.
- The work itselfAny necessary modifications to existing plumbing — a job left too long costs more than one done on time — and anything found on the day that was not in that is priced before it is started.
- Check it togetherSite Assessment — a mobile visit costs more than going to them — walked against the written scope rather than against the feeling of it, while the water tank installer is still there.
- What you are handedThe itemised invoice and any guarantee on the workmanship and the parts, consider the safety standards and regulations for water tank installations in your area.
- Site Assessment
- A professional plumber will conduct a thorough assessment of your property to determine the best location for the water tank.
- Tank Selection
- Choosing the right type of water tank is crucial.
- Cold Water Tank Installation
- Setting up a tank for the storage of cold water, often used in conjunction with other plumbing systems.
- Combination Boiler Installation
- Installing a combination boiler that provides both heating and hot water from a single unit, ideal for smaller homes.
- Replacement of Old Water Tanks
- Removing and replacing outdated or malfunctioning water tanks to improve efficiency and reliability.
- Water Tank Relocation
- Moving an existing water tank to a new location within the property, requiring careful planning and plumbing adjustments.
AFTER
When the job is done
Hiring a water tank installer: questions people ask
The cost can vary based on the type of tank, installation complexity, and any necessary modifications to existing plumbing. Additional features like insulation or emergency installations may also increase costs.
A standard water tank installation usually takes between 4 to 8 hours, depending on the tank type and existing plumbing conditions. More complex installations may require additional time.
Many plumbing services offer emergency or same-day installations, but availability can depend on demand and the specific service provider. It's best to inquire directly with local plumbers.
Yes, many plumbing companies offer discounts for booking multiple services at once. This can include related jobs like pipe replacement or boiler servicing, which can save you time and money.
Out of scope work may include extensive plumbing renovations, structural modifications, or electrical upgrades that are not directly related to the tank installation. Always clarify with your plumber what is included in the service.
NO REGISTER APPLIES TO PLUMBING ITSELF. Anyone may trade as a plumber. The line that does exist is gas: any work on a gas appliance or gas pipework is restricted to the Registered Gas Installer scheme, and a plumber who is not on it may not touch the gas side of a boiler however competent they are at everything else. Ask which side of that line your job falls on before you book.
MORE GUIDES
More hiring guides in plumbing & heating
Water tank installers near you
Sources — checked October 2026
- CRU — RGI and Safe Electric schemes
- CCPC — your rights when you buy a service
- Consumer Rights Act 2022
- Courts Service — small claims
- Revenue — PLUMBING SERVICES (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