Cost of replacing the boiler
Costs of replacing a boiler 2026
The cost of replacing a boiler averages between €900 and €12,000, depending on the type of boiler you have installed. During replacement, your old or defective boiler is removed and a new boiler is installed for heating and hot water. The price depends on factors such as power, efficiency, and whether you choose a high-efficiency (HE) boiler or a hybrid heat pump. In this price guide, you can read about the costs of a new boiler and what to look out for during replacement.
Table of Contents
- What does a new boiler cost?
- Boiler costs by brand and CW class
- Price-determining factors for replacing a boiler
- Additional costs and surcharges for boiler replacement
- How does the professional work when replacing a boiler?
- How can you save on replacing a boiler?
- When should you replace a boiler?
- Find the best professional for replacing your boiler
- Frequently asked questions about boiler replacement
- Book a professional for replacing your boiler
- Useful links
What does a new boiler cost?
A new boiler costs on average between €900 and €12,000, depending on the type you choose. An improved efficiency (IE) boiler is the cheapest option with prices starting from €900, while an HRe boiler with the highest efficiency can cost up to €12,000. In addition to these prices, there is the installation labour, which varies between €500 and €1,000. A complete project to replace your boiler therefore starts from €1,150 including installation.
Costs per type of boiler
| Type of boiler | Average costs |
|---|---|
| IE boiler | €900 - €1,500 |
| HE boiler | €1,400 - €3,000 |
| HRe boiler | €8,000 - €12,000 |
| Installation costs | €500 - €1,000 |
The IE boiler is the most affordable option but saves less energy than more modern types. A HE boiler offers significantly better energy efficiency and is currently the most sold boiler in the Netherlands. The HRe boiler delivers an efficiency of up to 140% by making optimal use of flue gases, but requires a significant upfront investment. What a new boiler costs including installation ultimately depends on the power you need and the complexity of the installation in your home.
All prices include 21% VAT and the labour of the affiliated professional.
Boiler costs by brand and CW class
The cost of a new boiler depends on the brand and the CW value (Comfort Hot Water). A higher CW value means more hot water per minute and a higher purchase price. Below you can see what different brands and CW classes cost.
Costs per price segment and brand
| Price segment | Brands | Average costs |
|---|---|---|
| Low | Remeha, Intergas, Ferroli, AWB | €800 - €1,100 |
| Mid | Vaillant, Daalderop, Bosch | €1,300 - €1,700 |
| High | Nefit, Atag | €1,700 - €2,200 |
Costs per CW class
| CW class | Average costs | Litres per minute | Suitable for |
|---|---|---|---|
| CW1 | €900 - €1,400 | 4 litres | Kitchen |
| CW2 | €1,100 - €1,400 | 6 litres | Kitchen or shower |
| CW3 | €1,200 - €1,800 | 10 litres | Kitchen, shower or bath (not simultaneous) |
| CW4 | €1,400 - €2,000 | 13 litres | Kitchen, shower or bath (partially simultaneous) |
| CW5 | €1,800 - €2,000 | 17 litres | Kitchen, shower or bath (almost simultaneous) |
| CW6 | €2,400 - €3,000 | 20 litres | Kitchen and shower or bath (simultaneous) |
A single person often finds CW2 sufficient, while a family with two children needs at least CW4. How much a new boiler costs including the correct capacity depends on how much hot water your household uses simultaneously.
Price-determining factors for replacing a boiler
What does a new boiler cost in your situation? This depends on various factors that influence the total price. Below you can read which aspects determine the costs and how they affect the end result.
Type of boiler and efficiency
The type of boiler you choose has a direct influence on the purchase price. An IE boiler costs €900 to €1,500, while a HE boiler costs between €1,400 and €3,000. The difference lies in the efficiency: HE boilers achieve 100-107% efficiency through condensation technology that recovers heat from flue gases. An HRe boiler costs €8,000 to €12,000 but delivers maximum energy benefits.
CW value and hot water requirement
The CW value determines how much hot water the boiler delivers per minute. A higher CW class means more capacity and a higher price. For a household with several bathrooms, at least CW4 is needed, which costs more than a CW2 boiler for single persons. How much hot water you use simultaneously determines which investment is necessary.
Brand and quality level
Budget brands such as Remeha, Intergas, Ferroli and AWB cost €800 to €1,100. Premium brands such as Nefit and Atag cost €1,700 to €2.200. The difference lies in warranty conditions, lifespan and noise production.
Installation location and accessibility
The location where the boiler is placed determines the labour time. In a boiler room with good ventilation and accessibility, the installation proceeds faster than in a cramped meter cupboard or bathroom. Ventilation requirements and options for flue gas discharge differ per location, which affects the installation time.
Property type and practical challenges
In apartments, extra challenges often arise such as VvE permission, limited installation space and noise nuisance requirements for neighbours. This can delay preparation and execution.
Combi-boiler versus solo boiler
A combi-boiler heats tap water directly and is easier to install. A solo boiler with a separate cylinder requires more space and installation time, but is more economical with high hot water consumption.
Regional differences
In large cities, labour costs are often higher than in rural areas. This difference affects what replacing a boiler ultimately costs.
Urgency and planning
Urgent jobs are more expensive than planned work. A boiler that breaks down in winter often requires urgent replacement with associated surcharges. Preferably plan replacement before problems occur.
Weekend versus weekdays
Work at the weekend costs more than during the week. Therefore, preferably plan the replacement on a weekday to limit labour costs.
Timing and prevention
Do not postpone replacement when your old boiler shows signs of wear. An old boiler with declining efficiency increases your energy bill. Tackling small problems early is more economical than a complete boiler replacement in peak season.
Local professional and travel costs
Local professionals can be on site faster and have lower travel costs. This saves on the total price of your new boiler.
Preparation and accessibility
Ensure that the workspace is clear and accessible. This saves labour time and prevents delays during installation.
Transparent price agreement
At Zoofy, you know what you pay in advance, without call-out charges and without surprises afterwards. You only pay after completion via a QR code.
Additional costs and surcharges for boiler replacement
Extra costs are situation-dependent and at Zoofy you pay no call-out charges.
- Urgency surcharge: For urgent jobs, a surcharge often applies because the professional has to adjust their schedule
- Weekend surcharge: Work at the weekend is more expensive than during the week
- Pipe replacement: Outdated or non-fitting pipes must be replaced, which involves extra material and labour costs
- Adjusting flue gas discharge: When upgrading to a HE boiler, a HE-compatible flue gas discharge is required
- Radiator adjustments: Modern boilers sometimes require new radiators or thermostatic valves for optimal operation
- Disposal of old boiler: The old boiler must be disposed of and recycled according to legal regulations
How does the professional work when replacing a boiler?
Replacing a boiler follows a set plan with attention to safety and functionality.
- Inspection and preparation: The professional checks the existing installation, pipes and flue gas discharge. He assesses whether adjustments are needed and discusses the desired boiler location with you.
- Removing old boiler: The old boiler is safely disconnected from gas, water and electricity. The boiler is removed for recycling in accordance with legal regulations.
- Checking pipes and discharge: Existing pipes are checked for suitability. With a HE boiler, it is checked whether the flue gas discharge needs to be adjusted for condensate drainage.
- Placing new boiler: The new boiler is mounted in the correct place with attention to ventilation requirements and accessibility for future maintenance.
- Connecting systems: The boiler is connected to gas pipes, water pipes and the central heating system. Electrical connections for the thermostat are made.
- Filling and bleeding: The central heating system is filled with water and all radiators are bled for optimal operation.
- Test run and CO measurement: The professional performs a test run to check operation. A mandatory CO measurement (carbon monoxide) is done to guarantee safety. He hands over the warranty certificates and explains the operation.
Replacing a boiler takes an average of 4 to 6 hours.
How can you save on replacing a boiler?
There are several ways to save costs when replacing your boiler.
- Buy in the summer: Purchase the boiler in the summer when demand is lower. Prices are then more favourable than in the cold winter months.
- Plan replacement in time: Do not wait until the boiler is defective. In winter, installers are busiest and urgency rates apply. Plan replacement well in advance.
- Prepare the workspace: Ensure the space around the boiler is clear and accessible. This saves labour time and keeps costs low.
- Choose the right type: Determine in advance which CW class you need. Overkill means unnecessarily high purchase costs, too little capacity causes comfort problems.
- Check subsidies: Subsidies are available such as ISDE (Investment Subsidy for Sustainable Energy) for sustainable heating solutions. Municipal schemes and green loans can lower purchase costs.
- Book via Zoofy: You get a fixed rate in advance, without call-out charges and without surprises. You only pay after the job is completed.
When should you replace a boiler?
A boiler has an average lifespan of 14 years, after which replacement becomes necessary.
Increasing breakdowns
If the boiler shows breakdowns more and more often and gives error messages, replacement is often more economical than repair. Frequent breakdowns indicate wear and tear of internal parts that can no longer be repaired economically.
Strange noises
Ticking, humming or knocking noises can indicate wear of internal parts. These noises indicate increased friction or defective pumps that lower efficiency.
Yellow flame
A yellow instead of blue flame indicates incomplete combustion and can be dangerous due to CO risk. This signal requires immediate action due to safety risks.
Increased gas consumption
If gas consumption rises without a change in heating behaviour, the boiler is no longer performing efficiently. This increases your energy costs and makes replacement more economical than further use.
Specific error codes
Certain error codes indicate defects that are no longer economically repairable. Ignoring these signals leads to higher energy costs and potentially unsafe situations.
Find the best professional for replacing your boiler
Replacing a boiler requires a certified professional for safety and reliability.
- Certified installer: Check if the professional has a valid installer certificate. Incorrect installation can lead to gas leaks or CO danger.
- No call-out charges: At Zoofy, you never pay call-out charges for having the affiliated professional come over.
- Fixed price in advance: You know exactly what a new boiler costs before installation starts, without surprises afterwards.
- Quick booking without quote hassle: You can book a professional directly and choose a time without first requesting quotes.
- Payment via QR code: You only pay via QR code after the job is fully completed and you are satisfied.
- Reliable professionals: All affiliated professionals are verified and score excellently on quality and reliability.
- Warranty conditions: Ask the installer about warranty conditions per manufacturer and what exactly is included in the replacement of your boiler.
Frequently asked questions about boiler replacement
What does a new boiler cost including installation?
A complete replacement costs from €1,400 for a HE boiler to €13,000 for an HRe boiler, including installation costs of €500 to €1,000. The price depends on the type of boiler, the power and the CW value you need.
How long does a boiler last?
A boiler has an average lifespan of 14 years. After this period, efficiency decreases and energy costs rise, making replacement recommended.
What is the difference between a HE and HRe boiler?
A HE boiler achieves 100-107% efficiency by recovering heat from flue gases. An HRe boiler combines this with power generation and achieves 140% efficiency, but costs considerably more to purchase.
Which CW value do I need?
For a single person, CW2 (6 litres per minute) is often sufficient. A family with two children needs at least CW4 (13 litres per minute). For multiple bathrooms or simultaneous use, CW5 or CW6 is recommended.
Can I get a subsidy for a new boiler?
No subsidy is available for standard boilers. However, there are subsidies such as ISDE for sustainable alternatives such as hybrid heat pumps.
How long does it take to replace a boiler?
The replacement takes on average 4 to 6 hours. With extra work such as pipe adjustments or flue gas discharge replacement, this can increase.
Must the flue gas discharge be adjusted with a new boiler?
When upgrading from an old boiler to a HE boiler, the flue gas discharge often has to be adjusted for condensate drainage. This involves extra material and labour costs.
What is the most expensive part of a boiler?
The heat exchanger is the most expensive part and largely determines what a new boiler costs. In the event of defects to this part, replacing the entire boiler is often more economical than repair.
How often should a boiler be maintained?
Annual maintenance is recommended. This involves checking combustion quality, gas pressure, pipes and safety features. Regular maintenance is often a warranty condition.
Is a combi-boiler better than a solo boiler with cylinder?
A combi-boiler is compact and suitable for smaller households with limited hot water consumption. A solo boiler with cylinder is more economical with high hot water consumption or multiple tapping points at the same time.
Book a professional for replacing your boiler
Ready to have your boiler replaced? At Zoofy, you book a professional directly, without quotes and without call-out charges. You see exactly what it costs in advance, and Zoofy connects you to a reliable professional who has been verified. You only pay when the work is done. Book a professional directly.