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What does it consist of?

Your natural gas installation requires periodic inspections in order to guarantee optimal use of the energy and the highest level of safety in its use. We will answer any questions you might have about how the periodic inspection works:

What is the periodic inspection and how does it affect me?

Periodic inspection

Your natural gas installation must be inspected once every five years to check that it complies with technical and safety requirements.


This inspection can be done by a licensed installation company or your natural gas distribution company.


The upkeep, conservation and correct use of the gas installation is the responsibility of its owner or user.  

What are the possible outcomes of the periodic inspection?

Periodic inspection


Satisfactory. Your installation was in order at the time of the inspection.


Not satisfactory. Anomalies that need to be corrected have been detected.

Out. The inspection could not be carried out and a new visit must be arranged. 

What is inspected in the periodic inspection?

Periodic inspection

  1. The absence of any gas leaks from the installation
  2. The gas pipes (visible and accessible parts) are checked
  3. Ventilation conditions and the location of the meters
  4. Ventilation of premises with natural gas appliances
  5. The natural gas connection with the appliances
  6. Heater and boiler flues
  7. Combustion check in natural gas water heaters, boilers and cooktops
  8. The working conditions of appliances that use natural gas


How is a facility maintained in good condition?

Periodic inspection

  1. Keep the area round the heater or boiler clean and accessible.
  2. Do not tamper with the installation or gas appliances in any way. Seek professional assistance.
  3. Do not prevent air from entering inlets and do not obstruct ventilation.
  4. Do not hang items over the gas pipes or their valves.
  5. Do not keep combustible products near gas appliances. 

What happens if I do not allow the inspection to be carried out?

Periodic inspection

Your natural gas installation requires some maintenance to ensure it is usable. Do not let the inspection go by, it is for your safety. If the inspection is not carried out, the competent body in your Autonomous Region will be notified and your gas supply might be cut off.

Get in touch with our Customer Service by ringing 900 100 252, available 24 hours a day, to arrange a new visit.