Some common signs your boiler may need replacing include:

• Rising heating bills

• Frequent breakdowns or repairs

• Strange noises (banging, gurgling, etc.)

• Uneven heating or water temperature

• Low water pressure or leaks
  If your boiler is 15+ years old, it’s usually more cost-effective to replace it than keep repairing it.

🔧 What type of boiler do you install?

I typically install modern, energy-efficient gas boilers, but I can advise on the best option based on your home, heating needs, and budget. If you're unsure whether you need a combi boiler, system boiler, or something else—I’ll walk you through the pros and cons of each.

💶 How much does a boiler replacement cost?

Costs will vary depending on:

• The size of your home

• Type of boiler needed

• Any additional work (e.g. flushing the system, new controls, new radiators, new feeds required for replacement installations etc.)

Most standard boiler replacements I carry out budget between €2,000–€3,000, fully installed with warranty—but I always provide a free, fixed-price quote upfront.

🏠 How long does it take to replace a boiler?

Most boiler installations take 1 to 2 days, depending on the job. I always aim to minimise disruption and leave your home clean and tidy. But I am not rushing, it is too important to get it right for you and your family. I have fixed too many rushed jobs done by others, you will get great value for the rate I charge.

📜 Will I get a warranty?

Yes. All boilers I install come with a manufacturer warranty—typically 1 to 10 years, depending on the brand. I’ll also provide documentation and show you how to keep the warranty valid through regular servicing. In addition, you get the RGII (Registered Gas Installer Ireland) paperwork and test settings.

🟢 Can you help with SEAI grants?

Yes—I can explain what grants you might be eligible for through the Sustainable Energy Authority of Ireland (SEAI) and guide you through the application process where needed. You may qualify for a Boiler Upgrade Grant or Heating Controls Grant, depending on your circumstances.

🧰 Do you remove the old boiler?

Absolutely. I handle safe removal and disposal of your old boiler, included in the service—so there’s nothing for you to worry about.

🧼 Will there be a mess?

Nope. I treat your home with respect—dust sheets, clean tools, and a full tidy-up at the end of the job. You wouldn’t even know I was there (except your heating will work better and my wife will give out that I don't leave our house as tidy).

📍 What areas do you cover?

I provide boiler replacements in:

• Dublin bordered by the M50 and areas accessible from it

• Carrickmacross and surrounds

• Nearby areas—just ask!

📞 How do I get started?

Just call or message me directly. I’ll arrange a quick chat or visit to assess your setup, then provide a clear, no-pressure quote.

Below is a long, detailed list of FAQs about gas boiler replacement in Ireland, including the ones plumbers often avoid (pricing, hidden costs, warranty, regulations, etc.).

General Boiler Replacement Questions

1. Do I really need to replace my gas boiler, or can it just be repaired?
Not always. A good installer should assess your boiler honestly. If repairs are cost-effective and safe, replacement may not be necessary. However, if your boiler is old, inefficient, or unsafe, replacement is often the smarter choice.

2. How long does a boiler replacement take?
Most standard gas boiler replacements take 1–2 days, depending on the complexity of the job (e.g., moving the boiler to a new location or upgrading pipework).

3. What is the average lifespan of a gas boiler in Ireland?
On average, a gas boiler lasts 12–15 years if properly serviced. Beyond this, efficiency drops and breakdowns become more frequent.

4. Can I replace my own gas boiler?
No – by law in Ireland, only a Registered Gas Installer (RGII) can carry out gas boiler installations. DIY installation is unsafe and illegal.

5. Will replacing my boiler really save me money on energy bills?
Yes. Modern condensing gas boilers are up to 90%+ efficient, compared to some older boilers that may run at 65–70%. Over time, this means significant savings.

Cost & Pricing Questions (The Ones Many Plumbers Avoid)

6. How much does a new gas boiler cost in Ireland?
A typical boiler replacement (supply & fit) costs between €2,000 and €3,500, depending on the brand, size, and complexity of the job.

7. Are there hidden costs I should watch out for?
Yes – some quotes don’t include extras like system flushing, upgrading controls, removing the old boiler, or upgrading flues/pipework. Always ask for a detailed breakdown in writing.

8. Why do different plumbers quote different prices for the same boiler?
Prices vary due to brand preferences, labour charges, aftercare packages, and sometimes mark-up margins. A higher quote doesn’t always mean better service — but the cheapest quote isn’t always the best either.

9. Should I go for the cheapest quote I can find?
Not always. A cheap job may cut corners (no flushing, poor-quality parts, or lack of warranty registration). Value for money is more important than just the lowest cost.

10. Do you offer finance or payment plans for boiler replacement?
Some installers do – always ask upfront. Spreading the cost over a year or more can make boiler replacement more affordable.

Grants, Insurance & Legal Questions

11. Is there a grant available for replacing a gas boiler in Ireland?
Yes. The SEAI Better Energy Homes Scheme offers grants, but only when installing energy efficiency upgrades like heating controls alongside the boiler.

12. Will my home insurance cover boiler replacement?
Typically, no. Insurance may cover damage caused by a faulty boiler, but not the cost of replacing the boiler itself.

13. Is it illegal to use an unregistered plumber to fit a boiler?
Yes. In Ireland, only RGII-registered installers can legally carry out gas boiler work. Using an unregistered installer could invalidate your home insurance and warranty.

Installation & Technical Questions

14. Do I need new pipework or radiators when replacing my boiler?
Not always. A good installer will test your system and only recommend upgrades if necessary (e.g., undersized pipes, leaking radiators, or sludge build-up).

15. Do I need to flush my system when replacing a boiler?
Yes. System flushing (power flush or chemical flush) is essential to remove sludge and debris. Skipping this step can damage your new boiler and void the warranty.

16. Can my new boiler be installed in a different location?
Yes, but moving a boiler can add extra cost for new flue runs, pipework, and labour.

17. How noisy will my new boiler be?
Modern boilers are much quieter than older models, often no louder than a fridge humming.

18. Will I lose hot water and heating during installation?
Yes, but usually for less than a day. Installers aim to minimise disruption.

Warranty & Aftercare Questions

19. How long is the warranty on a new gas boiler?
Most boilers come with 5–10 year warranties, depending on the brand and installer. Some premium models offer longer coverage.

20. Are there conditions to keep my boiler warranty valid?
Yes. Annual servicing by an RGII-registered installer is usually required to maintain the warranty. Skipping a service could void it.

21. Do you register my new boiler for warranty, or do I need to do it?
A professional installer should register the warranty for you – but always ask and keep the paperwork.

22. What aftercare should I expect from my installer?
At minimum, you should receive a warranty certificate, service schedule, and installation documentation. Some installers offer a first-year service included.

Safety Questions

23. What happens if a gas boiler is fitted incorrectly?
A poor installation can cause gas leaks, carbon monoxide poisoning, or system breakdowns. That’s why RGII registration is crucial.

24. Do new boilers have carbon monoxide safety features?
Yes, modern boilers have multiple built-in safety mechanisms. However, you should also install a separate carbon monoxide alarm in your home.

25. How often should my gas boiler be serviced?
Every year. Regular servicing keeps your boiler efficient, safe, and within warranty.

“Awkward” Customer Questions Plumbers Don’t Always Like

26. Why are labour charges so high for a one-day installation?
You’re paying not only for the day’s work but also for qualifications, certification, liability insurance, RGII compliance, and expertise.

27. Do plumbers make commission on selling certain boiler brands?
Sometimes. Some installers have partnerships with brands or suppliers. Always ask if they are recommending the best boiler for you or the one that gives them the best deal.

28. Will you take away my old boiler for free?
Not always. Some installers include removal and disposal in the price, others charge extra. Always ask before booking.

29. Can a plumber cut corners to save time or money?
Unfortunately, yes. Common shortcuts include skipping system flushing, using cheaper materials, or not registering warranties. Customers should always request written confirmation of the work being done.

30. Why do some installers avoid giving written breakdowns of costs?
Because it makes it harder for customers to compare like-for-like quotes. Always insist on a detailed written quote.

31. Can I buy my own boiler and just pay a plumber to fit it?
Some plumbers refuse because it can affect warranty and aftercare responsibility. If you supply your own boiler, you may lose warranty cover if not installed through approved suppliers.

32. Why do boilers sometimes break down just after the warranty ends?
It’s not always a coincidence – parts wear out over time. Regular servicing and choosing a reliable brand help extend lifespan.

Many homeowners don’t know what to check before hiring someone for a gas boiler installation in Ireland, and it can make a huge difference in terms of safety, cost, and reliability. Here’s a clear checklist you could even use on your website to educate customers and build trust:

When replacing or installing a gas boiler, the installer you choose is just as important as the boiler itself. Here’s what you should look for:

✅ 1. RGII Registration (Legal Requirement)

• Only a Registered Gas Installer (RGII) is legally permitted to install, repair, or service a gas boiler in Ireland.
  
  

• Always ask for their RGII number and verify it on the official register.
  
  

✅ 2. Clear, Written Quotes (No Hidden Costs)

• A trustworthy company will provide a detailed written breakdown of costs, including:
  
  

  • Boiler price
    
    

  • Installation labour
    
    

  • System flushing
    
    

  • Flue, controls, or pipe upgrades
    
    

  • Removal of the old boiler
    
    

• Be cautious of vague “all-in” quotes that leave room for add-ons later.
  
  

✅ 3. Experience & Reputation

• Look for installers with years of experience in gas boiler installations.
  
  

• Check for reviews, testimonials, or recommendations from other customers.
  
  

✅ 4. Warranty & Aftercare

• A reliable installer should:
  
  

  • Register your boiler with the manufacturer for warranty.
    
    

  • Provide at least a 5–10 year warranty (depending on boiler brand).
    
    

  • Offer follow-up servicing or support if needed.
    
    

✅ 5. Transparent Advice (Not Just Sales)

• A good plumber will assess your heating system and recommend the best boiler size and type for your home, not just push the brand they make the most margin on.
  
  

• Be wary if they only ever recommend one brand without explanation.
  
  

✅ 6. System Flushing Included

• Reputable companies will always carry out a power flush or chemical flush before fitting a new boiler.
  
  

• Skipping this step is a common shortcut that can shorten your new boiler’s lifespan and void the warranty.
  
  

✅ 7. Insurance & Certification

• Always confirm they have public liability insurance.
  
  

• Ask if they provide RGII completion certificates after installation (this proves the job was done legally and safely).
  
  

✅ 8. Availability & Support

• Do they offer after-hours support or emergency callouts if something goes wrong?
  
  

• Do they provide ongoing servicing packages to keep your boiler in top condition?
  
  

✅ 9. Energy Efficiency Knowledge

• A quality installer will also help you save money long-term by advising on:
  
  

  • Heating controls
    
    

  • Thermostats
    
    

  • Smart home integration
    
    

• This can reduce heating bills and may qualify you for SEAI grants.
  
  

✅ 10. Professionalism & Trust

• Do they arrive on time, answer questions clearly, and respect your home?
  
  

• The best installers are transparent, friendly, and put safety before profits.
  
  

 “Choosing the right installer is just as important as choosing the right boiler. At FlowHeat, we tick every box — from RGII registration and full warranties to clear pricing and expert aftercare.”

Most people I price for servicing argue it's too dear because they see it for 70-80 quid.  To do a proper service that is not worth my while! Another reason is the grief when you open a boiler that has been serviced by someone who has taken a shortcut, and you tell people it needs this and that, they argue because they think a service is a guarantee that nothing will ever go wrong.  So they start saying that you are chancing your arm!  And then if parts can't be got for it ..... 

• Click HERE to watch "This Morning"  ITVX, Tuesday 19th August: summer boiler checks could save you money.

  1. Service is not repair!!!

  2. Like an NCT.

  3. Not repairing things that are broken.

  4. Jobs you can do yourselves:

  5. Check boiler pressure: pressure gauge; filling loop on a combi boiler. 

     • towards 1.2 BAR

  6. Bleeding radiators!  Not a marathon

     • A bleeding key, not a dub, but as seen on Sunday brunch!

Here is what Google's AI overview says:

scheduling a boiler service during the summer offers numerous benefits, including potential discounts from engineers, fewer waiting times for appointments, and the ability to identify and fix minor issues before they become costly breakdowns during colder months. A professional service also ensures the boiler runs efficiently, which can lead to savings on energy bills and reduces the risk of carbon monoxide emissions. 

Benefits of a Summer Boiler Check

• Increased Availability:
  Engineers have more time to perform services during the summer, compared to the busy winter months when demand is high. 

• Discounted Prices:
  Some companies offer deals and discounts for boiler services during the off-peak summer season. 

• Preventative Maintenance:
  A service helps identify small issues before they become major problems, preventing expensive repairs and breakdowns in winter. 

• Improved Efficiency:
  A well-maintained boiler runs more efficiently, which translates to lower energy consumption and reduced heating costs. 

• Safety Assurance:
  It includes critical safety checks, reducing the risk of carbon monoxide emissions and ensuring the system is safe to operate. 

• Warranty Compliance:
  Many manufacturer warranties require annual boiler servicing, and doing it in the summer ensures your warranty remains valid. 

What to look for during a service:

• Pressure Gauge:
  Check the pressure gauge; a low reading can indicate an issue. 

• Leaks:
  Look for any signs of leaks in the system, as this needs professional attention. 

• Radiator Performance:
  Ensure your radiators are heating up properly, as uneven warming can point to problems. 

• Hot Water Functionality:
  Confirm that the boiler is reliably providing hot water for showers and taps. 

📱 Call Shane: 0877609143
📧 Email: shane@ajsplumbing.ie
Or [fill out the contact form here]