Boiler maintenance explained

🔧 CV boiler maintenance explained

What exactly is a central heating boiler?

A central heating boiler is the heart of your home. It keeps you warm in the winter and provides hot water when you shower or do the dishes.
But... just like a car, a central heating boiler needs to be serviced occasionally. If you don't, it can break down, consume more gas, or even become dangerous.

What is central heating boiler maintenance?

Boiler maintenance means that a technician will come and check, clean and test your boiler.
Think of it like brushing your teeth: if you never brush, you get cavities. It's the same with a central heating boiler: if you never have it checked, it will break down faster or stop working properly.

How does central heating boiler maintenance work?

During a maintenance service a mechanic actually does four things:

Check – He checks if everything looks okay. Are there any cracks, leaks, or strange things?
Cleaning – The boiler often accumulates dust and dirt. This is removed so the boiler is clean again.
Measuring – The technician measures whether the flames are burning properly and whether no dangerous gases are being released.
Adjustment – The boiler is adjusted to use just the right amount of gas. Not too much, not too little.

Why is maintenance so important?

🔒 Safety → Without maintenance, carbon monoxide can build up. This is a gas you can't see or smell, but it can make you very sick or even kill you.
⚡ Save → A clean boiler uses less gas. That reduces your energy bill.
🛠️ Preventing breakdowns → You don't want to stand under a cold shower or in the cold in winter. Maintenance prevents breakdowns.
📅 Longer lifespan → A boiler that is well maintained will last much longer.

What is a CO inspection?

A CO inspection is an additional safety check .

The technician places a special measuring device in the boiler exhaust.
This device measures whether carbon monoxide (CO) is released.
If the values are too high, an alarm will sound.
The mechanic will immediately resolve this by replacing or readjusting parts.

Starting in 2023, a CO inspection will even be mandatory during maintenance. This way, you can be sure your boiler is safe.

What do you need for good central heating boiler maintenance?

A certified mechanic (i.e. someone with a diploma and CO certificate).
A maintenance contract , so that you automatically receive a check every year.
A boiler logbook or maintenance report , in which everything is recorded.
Possibly a CO detector in the house (a kind of smoke detector, but for carbon monoxide).

How often should your boiler be serviced?

Once a year is ideal → then your boiler remains safe and economical.
If you wait longer (2 or 3 years), you run the risk of malfunctions or danger.
With some contracts the engineer comes once every 2 years , but annually is better.

What happens if you don't do maintenance?

The boiler may break down → expensive repair or even buying a new one.
Your gas bill is going up → because the boiler is working less and less efficiently.
Carbon monoxide may be released → this is dangerous and sometimes even fatal.
Warranty voids → many manufacturers require annual maintenance.

Tips for you

Place a CO detector near your boiler.
Take out a maintenance contract → you'll never have to think about it again.
Don't wait until your boiler starts acting up → having it checked is always cheaper than repairing it.
Always hire a certified technician → doing it yourself is dangerous.

In short

CV boiler maintenance is basically: checking, cleaning, measuring and adjusting .
This way, your boiler remains safe, efficient, and reliable. With a CO inspection, you can be sure your family is protected.

👉 At New Heating, we take care of it all. Operating nationwide, always on-site quickly, and always safe.

Frequently Asked Questions (FAQ)

1. How do I know if my boiler needs maintenance?
If your boiler is making strange noises, frequently shutting down, or if your radiators aren't heating up properly, it's time for maintenance. A sudden increase in your gas bill could also be a sign.

2. How long does a central heating boiler last?
Average lifespan: 12 to 15 years. With proper maintenance, it can last up to 18 years. Without maintenance, it can last only 7 to 8 years.

3. Can I clean my boiler myself?
No, not the inside. You can keep the boiler room clean and ensure there's plenty of fresh air. A technician will need to come out for the real work.

4. What is a maintenance contract?
This is an agreement where the technician comes automatically every year. You pay a fixed amount per month or year, so you never have to think about it again.

5. What happens in the event of a malfunction?
With a contract, you get 24/7 assistance. Call us, and a technician will be there quickly. Without a contract, you'll have to pay extra costs and sometimes wait longer.

Checklist: What can you do yourself?

You don't have to play mechanic yourself, but there are a few simple things you can do:

✅ Place a CO detector in the room where the boiler is located.
✅ Keep the space clean and free of clutter .
✅ Check occasionally whether the water pressure is between 1.5 and 2 bar.
✅ Bleed your radiators a few times a year.
✅ Call us if you notice any unusual odors, noises, or error codes.

Explanation for families and children

Imagine this: the central heating boiler is like a large water heater that serves the entire house. It produces hot water for the shower and heats the radiators.
If the "big kettle" gets too dirty or broken, it won't work properly anymore. That's why a boiler doctor (the technician) comes out every now and then. They clean the kettle, give it a checkup, and ensure it stays healthy.

This way the house stays warm and safe – and children can play happily without getting cold.

Additional tips for safety and saving

🔒 Always install a CO detector – This small device can save lives.
🌍 Have annual maintenance done – It’s cheaper than waiting until something breaks.
💡 Choose a maintenance contract – Then you know for sure that everything will be fine, without any stress.
⚡ Replace your old boiler in time – A new boiler often saves hundreds of euros per year.
🛠️ Always use a certified technician – Safety first.

A central heating boiler is the heart of your home. Maintenance is like an annual car inspection: it ensures everything remains safe, efficient, and reliable. With a CO inspection, you can be sure your home and family are protected from dangerous gases.

👉 At New Heating, we take care of everything from A to Z. Everywhere in the Netherlands, with experienced technicians, 24/7 assistance, and tailor-made contracts.

💡 Practical examples from everyday reality

Example 1 – Jan from Utrecht
Jan hadn't had his boiler checked in four years. One cold winter's day, it stopped working. No heating, no hot water. The technician came and discovered dirt in the burner. The cost? €350 for the repair.
👉 If Jan had had a maintenance contract, this problem would have been discovered earlier and he would have paid only €12 per month.

Example 2 – The De Vries family from Eindhoven
The De Vries family suddenly smelled a strange odor in the utility room. They called immediately. The technician performed a CO2 test and discovered a dangerous leak. Luckily, they were in time! After cleaning and adjusting the boiler, it was working safely again.
👉 Without CO inspection this could have become life-threatening.

Example 3 – Grandma from Groningen
Grandma had an 18-year-old boiler. It still worked, but it was a heavy gas consumer. The engineer recommended a new high-efficiency boiler. Result: €400 less gas consumption per year.
👉 Sometimes replacing is cheaper than sticking around.

💰 Costs of central heating boiler maintenance – simply explained

Individual maintenance (1x service): €150
Maintenance contract: from €10 to €20 per month
→ often including 24/7 breakdown service
CO inspection: included in maintenance

👉 With a contract, you know exactly what you're getting. No surprises, always secure.

⚠️ What happens without maintenance?

Higher gas consumption → you pay hundreds of euros too much per year.
Faults → cold showers, radiators that do not work.
Danger → risk of carbon monoxide, which you cannot smell or see.
More expensive repairs → small problems become big if you don't solve them.
Shorter lifespan → a boiler without maintenance often lasts 5 years less.

🔄 When to replace?

If your boiler is older than 15 years , it is wise to consider replacement.
New HR boilers are much more economical → save hundreds of euros per year.
Sometimes maintenance is enough, but a mechanic can give you honest advice.

✅ In short (explained even more simply)

A central heating boiler is just like a car:

Without an MOT it can become dangerous.
With maintenance you drive (or in this case: heat) safely, economically and for longer.
A mechanic is actually the doctor for your boiler.

👉 New Heating takes care of it all. Throughout the Netherlands. For everyone.

CV boiler maintenance throughout the Netherlands – safe, economical and professional

A well-maintained central heating boiler is essential for comfort, safety, and low energy costs. At New Heating, you're assured of reliable maintenance, carried out by certified technicians. We operate in all provinces, cities, and towns in the Netherlands .

Why choose New Heating?

🔒 Safety first – carbon monoxide and gas leaks are prevented in time.
⚡ Lower energy bills – a clean boiler uses less gas.
🛠️ Fewer disruptions – prevent unexpected outages in winter.
📅 Longer lifespan – your boiler will last years longer.
🌍 National coverage – we come to every region.

Our working method

Safety check → gas pipes, connections and flue gas exhaust are checked.
Cleaning → burner, heat exchanger and fan are cleaned.
Adjustment & measurement → efficiency and performance are optimally set.
Advice → tips to save energy and prevent malfunctions.

👉 Request your maintenance contract now and benefit from certainty, safety and comfort.

📍 New Heating work area: all cities and villages in the Netherlands

Below you will find an overview of our services per province.

North Holland

English: Amsterdam, Aalsmeer, Alkmaar, Amstelveen, Beemster, Beverwijk, Blaricum, Bloemendaal, Bussum, Castricum, Diemen, Edam, Enkhuizen, Haarlem, Haarlemmermeer, Heerhugowaard, Heemskerk, Heemstede, Heiloo, Hilversum, Hoofddorp, Hoorn, Huizen, IJmuiden, Landsmeer, Langedijk, Laren, Medemblik, Monnickendam, Muiden, Naarden, Oostzaan, Opmeer, Ouder-Amstel, Purmerend, Schagen, Texel, Uithoorn, Uitgeest, Velsen, Volendam, Weesp, Wervershoof, Wijdemeren, Wormer, Wormerveer, Zaanstad, Zaandam, Zandvoort, Zijpe.

(And all smaller villages in North Holland, such as: Andijk, Bergen, Callantsoog, Egmond aan Zee, Groet, Heiloo, Limmen, Obdam, Schoorl, Twisk, Warder, Wieringerwerf, etc.)

✅ South Holland – CV boiler maintenance in all cities and villages

New Heating is also the leading specialist in central heating boiler maintenance in South Holland . Whether you live in major cities like Rotterdam, The Hague, and Leiden , or in a smaller village, we ensure your boiler continues to operate safely, efficiently, and trouble-free.

Cities and villages in South Holland

Rotterdam, The Hague, Leiden, Delft, Dordrecht, Zoetermeer, Gouda, Schiedam, Vlaardingen, Spijkenisse, Katwijk, Alphen aan den Rijn, Rijswijk, Capelle aan den IJssel, Ridderkerk, Hellevoetsluis, Naaldwijk, Wassenaar, Voorburg, Maassluis, Leidschendam, Barendrecht, Hoogvliet, Krimpen aan den IJssel, Nieuwerkerk aan den IJssel, Bergschenhoek, Berkel and Rodenrijs, Pijnacker, Wateringen, Voorschoten, Valkenburg, Hazerswoude, Boskoop, Bodegraven, Bleiswijk, Benthuizen, Moordrecht, Zevenhuizen, Schoonhoven, Nieuwkoop, Reeuwijk, Papendrecht, Sliedrecht, Hardinxveld-Giessendam, Zwijndrecht, Hendrik-Ido-Ambacht, Oud-Beijerland, Numansdorp, Mijnsheerenland, Puttershoek, Maasdam, Strijen, Klaaswaal, Westmaas, Heinenoord, 's-Gravendeel, Stellendam, Ouddorp, Goedereede, Middelharnis, Dirksland, Sommelsdijk, Oude-Tonge, Nieuwe-Tonge, Herkingen, Melissant, Rockanje, Oostvoorne, Brielle, Rozenburg, Hoogvliet, Pernis.

(And all surrounding villages in South Holland, such as: Giessenburg, Brandwijk, Goudswaard, Maasland, Schipluiden, Ameide, Lexmond, Hoornaar, etc.)

✅ Utrecht – CV boiler maintenance in all cities and villages

New Heating also operates in the province of Utrecht . From the city of Utrecht to small villages in the Groene Hart region, we provide professional boiler maintenance everywhere.

Cities and villages in Utrecht:
English: Utrecht, Amersfoort, Zeist, Nieuwegein, Veenendaal, Houten, IJsselstein, Woerden, Leusden, Baarn, Soest, Bunnik, De Bilt, Bilthoven, Maarssen, Breukelen, Loenen aan de Vecht, Abcoude, Mijdrecht, Vinkeveen, Montfoort, Oudewater, Wijk bij Duurstede, Rhenen, Doorn, Driebergen, Leersum, Maarn, Scherpenzeel, Benschop, Lopik, Harmelen, Cothen, Odijk, Langbroek, Amerongen, Werkhoven, Zegveld, Kockengen.

✅ Gelderland – CV boiler maintenance in all cities and villages

Gelderland is the largest province in the Netherlands, and we operate everywhere here: from Arnhem to the Achterhoek and from Nijmegen to the Veluwe.

Cities and villages in Gelderland:
English: Arnhem, Nijmegen, Apeldoorn, Ede, Wageningen, Zutphen, Doetinchem, Tiel, Harderwijk, Barneveld, Culemborg, Wijchen, Beuningen, Putten, Ermelo, Nijkerk, Elburg, Lochem, Brummen, Doesburg, Dieren, Zevenaar, Duiven, Westervoort, Groesbeek, Millingen aan de Rijn, Beek-Ubbergen, Malden, Druten, Beneden-Leeuwen, Zaltbommel, Geldermalsen, Neerijnen, Kesteren, Lienden, Culemborg, Hedel, Rossum, Ochten, Velp, Rheden, Eerbeek, Brakel, Neede, Winterswijk, Lichtenvoorde, Groenlo, Borculo, Aalten.

✅ North Brabant – CV boiler maintenance in all cities and villages

In North Brabant we are active in both the major cities and the smallest villages.

Cities and villages in North Brabant:
's-Hertogenbosch, Eindhoven, Tilburg, Breda, Helmond, Oss, Uden, Veghel, Waalwijk, Oosterhout, Roosendaal, Bergen op Zoom, Boxtel, Best, Vught, Goirle, Valkenswaard, Geldrop, Son en Breugel, Nuenen, Mierlo, Asten, Someren, Deurne, Laarbeek, Gemert, Boekel, Cuijk, Grave, Boxmeer, Mill, Sint Anthonis, Schijndel, Sint-Oedenrode, Heesch, Haaren, Drunen, Heusden, Dongen, Kaatsheuvel, Rijen, Etten-Leur, Zevenbergen, Klundert, Steenbergen, Hoogerheide, Halsteren.

✅ Limburg – CV boiler maintenance in all cities and villages

In Limburg, you can always count on New Heating. From Maastricht to Venray: we're here for you.

Cities and villages in Limburg:
Maastricht, Heerlen, Kerkrade, Landgraaf, Sittard, Geleen, Born, Stein, Beek, Meerssen, Valkenburg, Gulpen, Vaals, Eijsden, Margraten, Hoensbroek, Brunssum, Roermond, Venlo, Venray, Horst, Tegelen, Blerick, Weert, Nederweert, Echt-Susteren, Montfort, Maasbracht, Reuver, Swalmen, Panningen, Baarlo, Heythuysen.

✅ Friesland – CV boiler maintenance in all cities and villages

New Heating is also ready for professional central heating boiler maintenance in Friesland.

Cities and villages in Friesland:
Leeuwarden, Drachten, Heerenveen, Sneek, Harlingen, Franeker, Bolsward, Joure, Dokkum, Lemmer, Workum, Stiens, Grou, Akkrum, Wolvega, Surhuisterveen, Buitenpost, Burgum, Kollum, Beetsterzwaag, Oosterwolde, Balk, Makkum, Holwerd, Terherne, Tzummarum, Ferwert, Damwoude, Winsum, Marrum, Woudsend, Stavoren, Hindeloopen.

✅ Groningen – CV boiler maintenance in all cities and villages

In Groningen we are active in both the city and the surrounding villages.

Cities and villages in Groningen:
Groningen city, Hoogezand, Veendam, Winschoten, Stadskanaal, Appingedam, Delfzijl, Haren, Leek, Zuidhorn, Bedum, Uithuizen, Warffum, Loppersum, Middelstum, Ten Boer, Slochteren, Zuidbroek, Scheemda, Old Pekela, New Pekela, Musselkanaal, Baflo, Aduard, Winsum, Ezinge.

✅ Drenthe – CV boiler maintenance in all cities and villages

In Drenthe we provide maintenance for all brands of boilers, large and small.

Cities and villages in Drenthe:
: Assen, Emmen, Hoogeveen, Meppel, Coevorden, Roden, Beilen, Zuidlaren, Borger, Westerbork, Gieten, Norg, Vries, Diever, Ruinen, Havelte, Eelde, Paterswolde, Peize, Schoonoord, Sleen, Zweeloo, Valthe, Odoorn, Nieuw-Buinen, Gasselte, Rolde.

✅ Overijssel – CV boiler maintenance in all cities and villages

Our technicians are also available 24/7 in Overijssel for maintenance and service.

Cities and villages in Overijssel:
: Zwolle, Enschede, Hengelo, Deventer, Almelo, Kampen, Oldenzaal, Hardenberg, Steenwijk, Raalte, Ommen, Dedemsvaart, Genemuiden, Zwartsluis, Vollenhove, Dalfsen, Tubbergen, Losser, Haaksbergen, Borne, Wierden, Rijssen, Holten, Nijverdal, Hellendoorn.

✅ Flevoland – CV boiler maintenance in all towns and villages

We are of course also active in the youngest province of the Netherlands, Flevoland.

Cities and villages in Flevoland:
Lelystad, Almere, Dronten, Emmeloord, Zeewolde, Urk, Swifterbant, Biddinghuizen, Ens, Rutten, Bant, Creil, Tollebeek, Nagele, Espel, Marknesse.

✅ Zeeland – CV boiler maintenance in all towns and villages

Finally, New Heating is also the specialist in central heating boiler maintenance in Zeeland.

Cities and villages in Zeeland:
Middelburg, Vlissingen, Goes, Terneuzen, Zierikzee, Hulst, Oostburg, Yerseke, Kapelle, Wemeldinge, Arnemuiden, Domburg, Veere, Koudekerke, Westkapelle, Cadzand, Breskens, Sluis, Axel, Sas van Gent, Philippine, Sluiskil, Kloosterzande, Sint Jansteen.

✅ Zeeland – CV boiler maintenance in all towns and villages

❓ Frequently asked questions about central heating boiler maintenance

1. How often should I have my boiler serviced?
It's best to do this once a year . This will keep your boiler safe, efficient, and last longer.

2. What happens during central heating boiler maintenance?
The technician will inspect, clean, measure, and readjust the boiler. It'll work like new again.

3. Why is central heating boiler maintenance mandatory?
A CO inspection has been mandatory since 2023. This is to prevent dangerous carbon monoxide.

4. How much does central heating boiler maintenance cost?
A single session costs €70-€120. With a contract, you often pay €10-€20 per month.

5. What is a CO inspection?
This is a test with a measuring device to check whether carbon monoxide is coming from your boiler.

6. What exactly is carbon monoxide?
That's a dangerous gas you can't see or smell. With a CO detector and proper maintenance, you're protected.

7. How do I know if my boiler is unsafe?
If you get a headache, feel drowsy or notice any strange odors, call a technician immediately.

8. Can I clean my boiler myself?
No, leave that to a technician. You can check the water pressure and bleed radiators yourself.

9. How long does a central heating boiler last?
Average lifespan: 12 to 15 years. With proper maintenance, it can last up to 18 years.

10. When should I replace my boiler?
If it is older than 15 years, breaks down often or uses a lot of gas.

11. Can I save on maintenance?
Yes! A clean boiler uses less gas. That can save you €100-€200 per year.

12. Is maintenance the same for all brands?
Yes. Whether you have a Remeha, Vaillant, Intergas, Nefit Bosch, or Atag: maintenance is always necessary.

13. What if I don't do maintenance?
Your boiler may then break down more quickly, use more gas or become dangerous.

14. How quickly will a technician arrive in the event of a breakdown?
With a maintenance contract, it's often done the same day. Without a contract, it can take longer.

15. Am I entitled to a warranty without maintenance?
No. Manufacturers require annual maintenance. Otherwise, the warranty is void.

16. What is better: a single service or a contract?
A contract is cheaper and easier. You never have to plan again.

17. Can I have my boiler inspected when buying/selling a house?
Yes, that's often done. This way you can be sure the boiler is safe.

18. Why is a CO detector important?
It alerts you if carbon monoxide is released, just like a smoke detector in a fire.

19. Can I have my boiler and radiators checked at the same time?
Yes. The technician can check everything at once.

20. Do you also do emergency repairs?
Yes, with a contract you have 24/7 breakdown service.

21. What is the difference between central heating boiler maintenance and service?
Maintenance = cleaning and checking. Service = assistance with malfunctions. These are often included in a contract.

22. How much does a new boiler cost compared to an old one?
A new HR boiler can use up to 30% less gas .

23. Can maintenance also be done in the summer?
Yes, that's even smart. Then you won't have to worry about winter outages.

24. What happens if I move?
The contract can often be moved or terminated.

Boiler maintenance