Our services include the issuance of GAS FREE certificates, a document commonly required by the Harbour Master during maintenance work. Gibraltar Strait Surveyors has the right staff and our own properly certified gas measurement equipment.

In order to issue the certificate, the levels of gases present in confined spaces with potentially hazardous atmospheres are measured beforehand, thus ensuring that the entrance to the inspected area is safe and that the relevant tasks can be carried out within it: cleaning, inspection of the space in question or the different types of cold and/or hot work.