One-off service · No contract needed
Boiler servicing in The Hague
A thorough clean. Professional checks. Clear advice about your boiler.
Call to arrange a service070 888 5156 · We discuss availability and costs first.

Your local boiler specialist. CO-certified company (Dutch register, opens in a new tab).
More than a quick look
What happens during your boiler service?
ANO adapts the work to your boiler and the manufacturer’s instructions. Cleaning, technical checks and combustion measurements belong together.
Clean
The engineer opens the boiler and cleans the relevant parts, including the burner and heat exchanger, as required for the appliance.
Check
We inspect the appliance’s condition and visible components. Signs around the air supply, flue and connections can call for further investigation.
Measure & explain
We carry out CO and flue-gas analysis, assess operation and adjust where needed. We record the service and explain the findings.
A working boiler is not the whole story
During a real ANO maintenance visit, Anouar found an incorrect flue connection above a bedroom. That is why we look beyond whether the boiler turns on. See the real job and video (in Dutch).
Know what you are agreeing to
A service, without a subscription
Choose a one-off maintenance visit. There is no requirement to take out a maintenance plan.
Work matched to your boiler
We discuss your boiler, the maintenance needed and the price before you agree. Tell us the brand, model, address and when it was last serviced, if known.
Extra work is discussed first
Parts and materials, repairs and changes to the installation are not included. If we find a defect or an unsafe situation, we explain it and discuss the next step and any additional costs.
Want ongoing maintenance instead? Compare our boiler maintenance plans . Prices, cover and terms are on that separate page.
Your next step
Arrange your one-off service
- 01
Tell us about your boiler
Call with the boiler brand and model, your postcode and any maintenance history. Tell us about faults or concerns before arranging routine maintenance.
- 02
Discuss the visit and costs
We review your situation and availability with you. An enquiry is not yet a confirmed appointment.
- 03
Service and feedback
At the agreed visit, ANO carries out the maintenance and explains the findings. Additional work is discussed with you first.
Prefer to send your details? Use our maintenance request form in English. Your receipt email is also in English. Submitting it does not book a visit or take a payment.
A fault or safety concern needs a different response
No heating or hot water? Use our boiler repair page or call ANO. Do not use a routine maintenance request as an emergency report.
Questions about one-off boiler servicing
Do I need a maintenance contract?
No. You can arrange a single boiler service without taking out a plan. A maintenance plan is a separate choice for periodic servicing and the breakdown cover described in its terms.
How much does a one-off boiler service cost?
Contact ANO with your address, boiler brand and model. We discuss the work and price before you agree. Parts and materials, repairs and changes to the installation are not included in the service. Any additional work and costs are discussed first.
Is servicing the same as fixing a fault?
No. Servicing focuses on cleaning, checking, measuring and adjustment where needed. If your heating or hot water has stopped working, tell us about the fault first. A service is not a promise that an existing fault will be repaired.
How often should my boiler be serviced?
Follow the maintenance schedule for your boiler and any applicable warranty or contract conditions. If you do not know when it was last serviced, tell ANO the model and what maintenance records you have. We can discuss the appropriate next step.
Can I open or clean the boiler myself?
Do not open the boiler or work on its gas components, burner or flue. Use a CO-certified company for this work. You can note the boiler model and keep the surrounding area accessible without dismantling anything.
I rent my home. Should I arrange the service?
Check the existing maintenance arrangements with your landlord or property manager before requesting work. Tell them if a fault or safety concern has appeared. Do not delay emergency action while waiting for permission.
Does a working boiler mean the whole installation is safe?
No. A boiler can still heat the home while a connection or another part of the installation needs attention. ANO considers the condition of the appliance and signs around its air supply and flue, and discusses any further investigation needed.
Safety information (in Dutch): Dutch fire service: carbon monoxide and ACM ConsuWijzer: gas emergencies.
The Hague and surrounding areas
Contact ANO about maintenance in The Hague and nearby, including Voorburg, Rijswijk, Wassenaar and Zoetermeer. We discuss availability for your address.
Call to arrange a service