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Déroulement d'un diagnostic complet

  In all cases , the diagnosis begins with a site visit to identify and ensure that all the rooms are accessible. If certain parts are not accessible then you agree not to be covered for all of the hidden defects , which is the first goal of these diagnoses. In this case , if asbestos or leaded materials or there are termites, for example, and they are found after the sale of the property , the purchaser may turn against you and the company will not be recognized as responsible , so be careful that everything is visited !!!


  Once this first round has been completed, each piece will be described (type of material used) and a sketch of the property will be drawn.


  Then each diagnosis has its specificities (see below).



Conventional method:

  Several things are to be identified in this method:

     - the type of materials used for walls, floors, ceilings, joinery which lead to lossy parts (exterior or unheated premises)

     - the surface of these materials

     - the orientation of the opening

     - the habitable thermal surface

     - the type of heating and domestic hot water

     - its year of construction

  Once, all this information measured and identified, it must be entered in the software approved by the ministry (also called 3CL-DPE, DEL6-DPE or Comfie-DPE)   which will calculate a theoretical consumption of the accommodation.

  Their algorithms are defined in the decree of November 9, 2006 approving various calculation methods for the diagnosis of energy performance in mainland France.

  This method is used for all housing built from 1949.

Actual consumption method or invoice method:

  As for the other method, we need the same elements, however, unlike the other method, the software will not calculate energy consumption alone.


  We therefore need the property's heating and sanitary bills:

     - over the last 3 years or failing that, at least 1 year

  Why 3 years? It's simple, the goal is to have an average over several years of consumption, since, consumption is different depending on the weather and temperatures.

  Once these consumptions entered in the software, it will be able to calculate by dividing these consumptions by the habitable thermal surface of the accommodation.

  This method is used for all housing built before 1949.

The asbestos identification report


  The asbestos detection report should not be confused with a diagnosis before work or demolition. This statement is exclusively for sales and rentals of real estate and cannot be used to present to a company before work.


  It is a visual location without destructive work (for example: the interior of the walls are not part of the location), however for certain materials, we have an obligation to take samples to be sure of the presence of asbestos (case of list A: see table below).

Liste A : annexe 13-9 du Code de la Santé Publique
liste a amiante.png
Liste B : annexe 13-9 du Code de la Santé Publique
liste b amiante.png

  There is a list C which is used exclusively for diagnostics before works or demolition.


  When asbestos materials are identified, they are subject to a conservation assessment, that is to say that depending on their physical state and the situation of the place where they are found, they will have to be classified from 1 to 3. for list A and of EP (periodic evaluation), AC1 (corrective action only 1st level) and AC2 (corrective action of 2nd level) for list B.

Résultat et conclusion des grilles d'évaluation pour la liste A
grille éval A.png

  Periodic evaluation must be done within 3 years, Dust measurement within 3 months of diagnosis. For the work obligation, the owner must send a copy of the report to the prefect of the property department within 2 months and send a detailed plan of the work which will be done within 12 months, he will then have 36 months to perform this removal or containment work.

These are the actions to be done for list A exclusively.

  List B is much less drastic, since it is only a question of recommendations, the periodic evaluation is generally done during a change of owner, the 1st and 2nd level corrective actions are similar since it acts of containment or withdrawal plan of the material, the difference is that it is necessary to make a dust measurement for the 2nd to make sure that particles are no longer suspended in the air.


The Termite diagnosis

  The Termite diagnosis consists of a visual examination of visible and accessible parts for a search for signs of infestation (cords or tunnel-tunnels, insects, remains, damage, ...), a search for cellulosic products not attached to the frame (wood debris, boards, crates, paper, cardboard, ...), research on non-cellulosic materials attached to the frame (insulation, electrical sheaths, floor or wall covering, ...) and research in the areas conducive to the passage and / or development of termites (cellars, crawl spaces, networks, arrival and departure of fluids, manholes, ducts, cables, ventilation, ...)


  After the visual examination, you must probe the visible and accessible woods. This borehole is non-destructive using a punch, if the woods are degraded the borehole can be deepened and if necessary destructive. The elements in contact with the masonry must be subject to close drilling, approximately every 20/30 cm. Examination of the furniture can also be a good means of investigation.

The Lead Exposure Risk Statement (CREP)


  The lead in the paints will be able to be found thanks to an X-ray fluorescence machine which we will pass in all the rooms of the housing as well as the exterior on each element of the room. In the report, we differentiate between each wall, door, window, baseboards, etc. for a good understanding of the people who will read our work, with a sketch showing the positive measures found in the property.



The Electricity diagnosis

  The diagnosis of the electrical installation starts from the main differential circuit breaker (EDF), then check all the electrical panels linked to the accommodation and outbuildings as well as the proper functioning of the residual current differential circuit breakers (DDR) which allow personal safety by cutting before the electric shock if a fault appears in the installation. There is a check of all electrical outlets, light fixtures and the ground installation. Most of these checks are made using a measuring and testing device as well as a visual check (section of conductors, unprotected wires, ...)

The gas diagnosis


  The diagnosis of the interior gas installation begins at the gas meter of the accommodation with the verification of a presence of flow loss in the installation and a verification of each appliance connected to the gas network with test to see if there is loss of gas or loss of carbon monoxide. The tests are done using a measuring and testing device.


  Warning !!! If a Serious and Immediate Danger (DGI) is discovered in the installation, the operator can condemn one or all of the gas installation in order to carry out work to remove this or these anomalies.

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