Boiler installation · Dublin
New boilers supplied and installed from €2,360 €2,950Black Friday, 20% off
Supplied, fitted, flushed and certified by RGI registered engineers in Dublin, with a straightforward replacement usually completed in a single day.
- RGI registered
- Fully insured
- 4.3 stars from 92 reviews
The starting price of €2,360 covers a like-for-like boiler replacement in the existing location.
The following are not included in the starting price: upgrading the gas supply pipework; altering or rerouting the flue; relocating the boiler; a power flush where the system is found to be heavily contaminated; and any building or electrical work required to accommodate the new appliance or heating controls.
The final price is subject to a pre-installation survey, charged at €169 (incl. VAT). Should the customer proceed with the installation, this survey fee will be deducted from the final installation cost.
What is included in the €2,360 starting price
The fixed quote covers the labour and standard parts needed for a like for like boiler replacement. Upgrades, relocations and extra building work are priced separately after the survey.
Boiler prices
Around 80 percent of the boilers we fit in Dublin homes are the Ideal Logic2 System, 15 kW to 30 kW, which suits the majority of houses we survey. The two cards below cover the Ideal range we fit most. Where a house calls for a different brand, we install it and quote it at the survey.
Ideal
Logic2 System Gas Boiler
- Output
- 15 kW to 30 kW
- Type
- System
- Warranty
- 10 years
From €2,360 installed
Get a quote for this boilerIdeal
Logic Max Combi
- Output
- 24 kW to 35 kW
- Type
- Combi
- Warranty
- 10 years
From €2,360 installed
Get a quote for this boilerThe figure on each card is a starting price for a straightforward replacement. What moves the final number is the house rather than the appliance: the size of the property and the number of radiators it has to heat, how many bathrooms are in regular use, whether the flue route or the gas supply pipework needs upgrading to meet current requirements, whether the boiler is moving to a new position, and whether the existing system is dirty enough to need a power flush rather than a standard flush. All of that is measured at the survey and written into one fixed figure before anything is ordered.
Signs it is time to replace rather than repair
Age on its own is not a reason to replace a boiler, but it changes the odds. Once an appliance is past about fifteen years, seals harden, heat exchangers scale up and the electronics start to fail in ways that are no longer economic to chase. The clearer signal is the pattern of repairs. One breakdown in a decade is normal wear. Two or three call outs in a single heating season, especially for different faults, usually means the appliance is at the end of its working life rather than suffering from one bad part.
Parts availability matters just as much. When a model has been discontinued long enough that a fan, a gas valve or a PCB has to be sourced second hand or waited on for weeks, a household can lose heat in the middle of winter with no realistic fix. We check parts availability for your specific model before recommending anything, because it is often the deciding factor rather than the age on the badge.
Other symptoms are worth taking seriously. Radiators that take far longer than they used to before the room feels warm, or that are hot at the top and cold at the bottom, point to a system full of sludge as much as to a failing boiler. Pressure that keeps dropping week after week means water is leaving the system somewhere, and that is a repair question before it is a replacement question. Gas bills climbing while your habits stay the same is a slower signal, but a real one, because efficiency falls away as an appliance ages. Frequent lockouts, a burner that cycles on and off constantly, or a boiler that has become noticeably louder all belong on the same list.
Replacement is not always the right answer, and we will tell you when it is not. If your boiler is under ten years old, parts are readily available and the fault is a single component, we will quote you for the repair and say plainly that a new appliance is not money well spent this year. There is more long term work in being straight about that than in selling a household a boiler it did not need. If a repair is the better call, we will book it as a boiler repair instead, and if the appliance is simply overdue attention, an annual boiler service is often all that is needed to settle it down.
Choosing the right boiler for your home
Almost every gas boiler sold in Ireland now is a condensing appliance, so the real choice is not efficiency on paper. It is the type of system, the output in kilowatts and the model that suits how your household actually uses hot water.
Combi boilers
A combi heats water on demand straight from the mains. There is no cylinder and no attic tank, which frees up the hot press and removes the standing heat loss that comes with storing hot water. It suits the majority of two and three bedroom Dublin homes with one bathroom, and it is the simplest system to live with because there is no need to plan ahead for hot water. Its limit is flow rate. A combi can only heat water as fast as the mains delivers it, so running a shower and a bath at the same time is where households get caught out.
System boilers
A system boiler works with a pressurised hot water cylinder. The expansion vessel and pump are built into the appliance, so the installation is tidy, and stored hot water can supply two or three outlets at once without the pressure collapsing. This is the usual answer for houses with two or more bathrooms in regular use, for larger family homes, and for properties where the incoming mains cannot support a combi. The trade off is that you need space for the cylinder and you can run out of hot water if the cylinder is undersized for the household.
Conventional boilers
A conventional or open vent system uses a cylinder plus a cold water tank in the attic. It is the older arrangement found in many Dublin houses. It is rarely the choice for a new installation, but it remains sensible where the existing pipework and radiators are not suited to the higher pressures of a sealed system, or in a large house where the gravity fed layout works well and a full conversion would not repay the disruption.
How bathrooms and water pressure drive the decision
The single most useful measurement at a survey is the flow rate at the mains, taken at the kitchen tap in litres per minute. A combi that looks perfect on paper will disappoint in a house with weak incoming mains, because the appliance cannot invent water it is not being given. Count the bathrooms and en suites that get used at the same time on a normal weekday morning rather than the number that exist. Two showers running together is the point at which stored hot water usually wins.
How sizing in kilowatts works
Output in kilowatts describes how much heat the boiler can produce. For a combi, the headline figure relates mostly to hot water performance, and the heating output is usually lower. Sizing is not a matter of buying the biggest available. An oversized boiler in a small house short cycles, switching on and off repeatedly, which wastes gas and wears components out early. Sizing is worked out from the heat loss of the property, the number and size of radiators and the hot water demand, not from the output of the appliance being replaced, which was often guessed at when it was fitted.
Key considerations
- Efficiency. Every appliance we fit is a modern condensing boiler, and the controls fitted with it have as much effect on running cost as the appliance itself.
- Brand and model. Choose from brands with strong parts availability in Ireland, so a future repair is a next day job rather than a wait.
- Correct sizing. The output has to match the heat loss and the hot water demand of your property, worked out at the survey rather than copied from the old boiler.
The installation process
Typical installation duration is one day for a like for like replacement and two days for a conversion or a relocation. Lead time from accepted quote to fitting is [FILL: typical lead time in working days].
Survey and fixed quote
An engineer visits the house, checks the existing pipework, flue route and gas supply, measures the mains flow rate and counts the radiators. You get one written fixed quote covering the appliance, the labour, the flush, the filter, the certification and the removal of the old boiler, along with the timescale for the work. The survey visit is €169, this is credited to an install.
Booking and preparation
Once the quote is accepted the office books a date and confirms it in writing. Before the day, clear access to the boiler, the hot press and the attic hatch if a conversion is involved, move anything breakable out of the working area, and make sure someone over eighteen is at home for the full day. If you have pets, plan where they will be while doors are open.
Installation day
The engineer arrives between 8am and 9am, protects floors and worktops, and isolates the gas and water. A like for like replacement is normally completed in one day. A conversion or a change of position normally takes two. The old appliance is removed and taken away, the system is flushed, the magnetic filter is fitted and the new boiler is set to work. On a one day job heating and hot water are back on the same evening. On a two day job the office tells you in advance which night you will be without hot water.
Commissioning, handover and paperwork
The boiler is commissioned to the manufacturer's figures, the combustion readings are recorded and the controls are set up with you rather than left on a default programme. The engineer walks you through the thermostat, the pressure gauge and how to top the system up. You then receive the paperwork pack and the warranty is registered in your name.
Warranties, certification and paperwork
Everything below is handed over on the day of commissioning, and a copy is kept on file at the office so it can be reissued if you lose it.
- Manufacturer warranty
- Up to 10 years depending on the model chosen, registered in your name by us on the day. The exact length for each appliance is shown on the boiler cards above and confirmed in your quote. An annual service is a condition of every manufacturer warranty.
- Sylo workmanship guarantee
- Our own labour and the fittings we supply are guaranteed for [FILL: workmanship guarantee length]. If something we installed is at fault, we return and put it right without a call out charge.
- Gas installation certificate
- A declaration of conformance for the gas work, issued by the RGI registered installer who carried out the installation, with the work notified as required.
- Commissioning record and BER
- The commissioning checklist with the combustion readings taken on the day. Where a BER assessment applies to your property, the new appliance details are provided in a form your assessor can use to update the rating.
- Landlord gas safety certificate, Annex E
- Available on request and charged separately from the installation. It is a different document from the installation certificate, so ask the office to add it when you book if you need one for a tenancy.
Finance and grants
SEAI grants do not cover a gas boiler swap
It is worth being clear about this before you plan a budget around it. SEAI home energy grants are aimed at reducing fossil fuel use, so replacing a gas boiler with another gas boiler is not grant supported. No installer can change that, and any suggestion otherwise should be checked directly with SEAI.
What is supported is work that reduces the heat your home needs or moves it off gas: attic and wall insulation, heat pump installation where the property is suitable, heating controls upgrades, and the whole house approach through a registered One Stop Shop. If grant funded work is your priority, the sensible order is usually insulation first, because it lowers the heat demand and makes any later heating decision cheaper. Current grant amounts and eligibility are published by SEAI and change from time to time, so check their site rather than relying on a figure quoted by a contractor.
What Dublin customers say
4.3 stars from 92 Google reviews. Names and dates are as they appear on the review.
Review from Google
I have been using Sylo for a few years and have always got a great service from this company, no hassle and always arrive when they're supposed to.
Review from Google
5 star rating to Sylo Plumbing, Heating & Electrical, they serviced my Gas Boiler this year having taken over from Dublin Gas Works and I have to say, I was very impressed with Aaron who I dealt with in Sylo, he was very professional, had all my details and knew I had been a client of DGW and really looked after me. The Engineer turned up on time, was very professional, serviced the boiler and I got a full report emailed the next day. Brilliant company to deal with, so I highly recommend and I know Sylo will do very well going forward.
Review from Google
Very pleased with Sylo tradesmen. Efficient, clean and good workmanship
Areas we install in
Engineers are based across the city, north and south. If your area is not listed, ring the office and we will tell you straight away whether we cover it.
Boiler installation questions
The questions the office is asked most often before an installation is booked.
Get a fixed price for your new boiler
Send your details and the office arranges a survey at a time that suits. You get one written figure covering the appliance, the labour, the flush and the certification.
Or ring the office
(01) 429 8666Monday to Saturday, 8am to 6pm. RGI registered and fully insured.