What this work involves
Work on gas combustion installations requires a company with the required CO-vrij certification. Confirm the appropriate contractor beforehand.
- Existing installation
- Appliance, emitters and controls
- Maintenance and handover records
Use the following design considerations when coordinating this service with a wider project. Agree which parts apply to your request.
Coordinate water, power and heating interruptions with temporary facilities.
Decide this before construction
Link each order date to the phase needing the component. Before a disruptive transition, check that materials, decisions and temporary facilities are actually available.
Allow for later maintenance
Keep agreements and changes by phase, using consistent room names. Later questions about concealed work and outstanding items remain traceable.
Cost factors for this service
Costs depend on appliance choice, pipework, flue provisions and commissioning. Ask for the scope and selected specification to be described separately.
Bring this to the discussion
Photographs of the existing situation, available drawings and your requirements for boilers & heating maintenance. Identify the elements that should remain.
Questions about the work
What should I discuss before arranging boilers & heating maintenance?
Discuss comfort issues and future plans together. This site does not claim in-house CO certification; the certified contractor must be identified.
Official background: Dutch Government (Dutch).
The design situations here illustrate choices; they are not completed projects or a diagnosis of your property.

