Boiler · Naples and Campania
Boiler replacement in Naples: costs and how to choose
When a boiler is many years old and faults keep coming back, at some point replacing it makes sense. In the Naples area a replacement generally costs between 450 and 2,500 €, depending on the model and the work on the system. We set the price after a site visit. If you like, we can also prepare a first estimate remotely.
From €110 + VAT about 1 hourCleaning, flue gas check and logbook. Compliance sticker (bollino) is extra

Changing the boiler involves the gas system and the flue. It must be done by a business qualified for gas systems: do not accept installations done by someone who cannot give you the declaration of conformity.
Recognise the problem
- The boiler is more than 15 years old and breaks down every winter
- A technician told you a spare part can no longer be found
- The last repair quote came close to the price of a new boiler
- Gas bills rise even though you are not using the heating more
- The flue gas analysis gave values outside the limits
The most common causes
- 1
Spare parts unavailable
On boilers many years old, some parts are no longer made. Sometimes a compatible one can be found, but waiting times grow longer and the next fault is just around the corner.
- 2
Heat exchanger at the end of its life
The heat exchanger is the most expensive part. When it perforates on an old boiler, the repair bill comes close to that of a new boiler.
- 3
Low efficiency
Condensing boilers recover part of the heat in the flue gases, which traditional boilers lose up the chimney. For the same use, gas consumption usually goes down.
- 4
Combustion out of limits
If the flue gas analysis is outside the limits and adjustment is not enough, the boiler cannot stay in operation like that.
What you can safely check yourself
- Photograph the data plate of the current boiler, with brand, model, power and year.
- Photograph the flue, both where it leaves the boiler and where it ends outside, on the wall or the roof.
- Note how many bathrooms you have and how many showers are taken one after another: it helps choose the power for hot water.
- Find the system logbook and the latest flue gas analyses.
Never open the boiler or the gas water heater, and always switch off the power before touching an electrical appliance. If in doubt, call us.
When you need a technician at home
- You want the final price: the site visit confirms measurements, flue and connections
- You are moving from a traditional boiler to a condensing one and a condensate drain is needed
- The flue has to be modified or brought up to standard
- You want to move the boiler to another point in the house
How much it costs
Boiler service and flue gas analysis (our price)
Cleaning, flue gas check and logbook. Compliance sticker (bollino) is extra
from €110 + VAT
Boiler replacement
indicative market price in the Naples area; varies a lot with the model and the work on the system
450-2.500 €
Market figures are indicative for the Naples area. You know our exact price before we start; prices apply near our base in Parete, and further away you see them in full when you choose your town.
How much it costs to replace a condensing boiler
The range is wide because it covers everything: the model and its power, removing the old one, work on the flue and the condensate drain, the connections. A replacement in the same place, with drains already suitable, sits at the lower end. Moves and new drains push it up.
In flats with one bathroom, 24 kW is among the most common outputs. The price of a 24 kW boiler changes a lot from brand to brand: compare quotes for the same model and the same included work, not just the total.
In our quote you find the boiler, the labour and any extra work written separately, so you can see where the money goes. We set the exact price after the site visit and before we start.
Boiler incentives 2026: what to know before signing
There are tax incentives for replacing a boiler, but percentages, requirements and documents change from one year to the next and depend on your situation. That is why we do not quote figures to you verbally.
Before signing, check with your accountant or on the Agenzia delle Entrate website which deductions apply in 2026 for your case and what is needed, for example the type of invoice and the way of paying. At the end of the work we give you the declaration of conformity required by DM 37/2008.
Condensing boiler or heat pump?
Today many people also consider a heat pump. It suits some homes more than others: insulation, the type of radiators and the outdoor space for the external unit all matter.
On a video call we can talk it through calmly, looking at your home, and tell you what makes sense in your case before you ask for quotes.
Want to know what it is first? Show us
On a video call we look at your current boiler, the data plate, the point where the flue gases leave and the pipes below. From this we work out what type of boiler you need and which extra works are likely, and give you an approximate quote. We confirm the final price after the site visit.
Video consultation, up to 15 minutes: €9.90 (€14.90 on Sundays), deducted from the bill if we then come to your home.
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Frequently asked questions
How much does it cost to replace a boiler in Naples?
In the Naples area the market runs from about 450 to 2,500 €, depending on the model and the work. A replacement in the same place, with the flue already suitable, sits at the lower end of the range. We give you the final quote after the site visit. If you want an idea beforehand, an approximate estimate can also be made remotely.
What power should the new boiler have?
For a flat with one bathroom, a 24 kW is often enough. With two bathrooms used together or a large house, more may be needed. We decide by looking at the house, the system and your habits.
How long does the work take?
A simple replacement in the same place is usually finished in one working day. If the drains or the position change, more time is needed, and we write it in the quote.
How much is the 2026 boiler incentive?
We do not tell you verbally, because the rules change and depend on your tax situation. Check with your accountant or the Agenzia delle Entrate before signing the quote.
Which documents do I get at the end of the work?
The declaration of conformity required by DM 37/2008, the updated system logbook and the documentation of the new boiler. Keep them together: they are needed for flue gas checks and for any tax deductions.
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Boiler all over Campania
We work in Naples, Posillipo, Caserta and all over the region. Near our base in Parete there is no travel cost; further away you see the full price before you confirm.
Ready when you need us.
Book your visit by choosing a day and time. For emergencies we answer 24 hours a day, across Campania.