Partial or total renovation of an elevator and the creation of an appliance must consider several important criteria: 

- Compliance with the following codes certifications, 

- The evaluation of all related work around the unit to create or modernize 

- A detailed study to define the best solution depending on the environment before committing to a budget be sure to invest for the long term and avoid the preliminary work are useless in a later stage.

- A follow-up work to the contractor fulfilled its commitments. 

- A final audit before commissioning to eliminate all deficiencies and monitor compliance according to the technical specifications.