Sale or letting
If the home has an internal gas installation over 15 years old, include the assessment in the property documentation.
Installation over 15 years old
Check gas safety before selling or letting
Identify faults in pipework, fixed appliances and ventilation that may put occupants at risk.
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- Installation
- Over 15 years
- Sale
- Under 3 years
- Letting
- Under 6 years
WHEN A DPE IS REQUIRED
What applies to your property
You already have a report
Whether you can reuse it depends on its date and scope, and on the transaction. A report prepared for a sale less than six years ago can be used for letting.
CHECK THE EXEMPTIONS
Special cases and accepted alternatives
- No qualifying internal gas installation
- This requirement does not apply if there is no internal gas installation. Tell us about any fixed pipework, even if the appliance has been removed.
- Recent installation or certificate of conformity
- An installation no more than 15 years old falls below the threshold. Some certificates can stand in for the assessment. Have the date and issuer checked.
KEEP YOUR REPORT HANDY
Can you still use your report?
Three years for a sale, six years for a letting.
The assessment does not replace a boiler service. A serious hazard may lead to the affected supply being shut off.
How to prepare for your visit
Gather before the visit
- Previous assessment and any certificate of conformity.
- Access to appliances, pipework and vents.
- Confirm access instructions and whether the gas supply will be on before the visit.
During the visit
We check fixed appliances, pipework and ventilation under the statutory assessment procedure.
When you receive the report
Check the conclusions, the scope and limitations of the assessment, and any next steps. Keep the whole report, including its appendices.
Check your records before booking another assessment
A report or certificate that still meets the criteria can save a repeat visit. Have the whole document checked, including its date.
The legal framework,
explained.
Official sourcesLégifrance · French public services
LEGISLATION · LÉGIFRANCE
French Construction and Housing Code · Articles R.126-37 to R.126-41Read the official guidance (opens in a new tab)
What this means for youSets out the gas assessment's scope, content and accepted alternative documents.
LEGISLATION · LÉGIFRANCE
Decree of 11 August 2016 · gas assessments for lettingsRead the official guidance (opens in a new tab)
What this means for youSets out the rules for letting, the six-year validity period and accepted alternatives.
PRACTICAL ANSWERS
FAQ
What you may want to know before the appointment
Does a new boiler mean I don't need an assessment?
Not automatically. The assessment also covers the installation's pipework and ventilation.
Will you take the appliances apart?
The statutory assessment is carried out without dismantling equipment. The report records any access limitations.
What should I prepare around the appliances?
Leave appliances, connections and ventilation openings accessible. Tell us about appliances that are switched off or out of use, and about any access difficulties.
Is the assessment the same as a boiler service?
No. Servicing covers how the appliance operates. The assessment looks at the safety of the installation within the agreed scope. Keep both documents.
Can I send my previous report?
Yes. Send the full report, including its date and findings, and any records of changes made since then.
Is this a certificate of conformity?
No. It assesses risks in the existing installation. It does not certify a new installation.
Unsure about
your property?
If a report is difficult to follow, give us a call and we'll talk it through.
06 80 35 31 84