To perfectly deliver this monumental historic work, the Group recruited world class expert teams either for its infrastructure, eletromechanical apparatus, interior designs, or for the environmental protection and energy conservation, ensuring that the building is delivered with to the highest standard, with an aiming to renew its past glory. This project is the most labor-intensive renovation project undertaken in London during the past ten years. It took 3.5 million hours to complete this project and 26,000 sensors, 75,000 metres of pipeline and 1.32 million meter cables were installed in the building.

either is one thing or another thing, It is either hot or cold.  You do not use either with a list of things.  good work, D 

could someone revise this passage about a hotel building ? Thank you so much!!

This project is the most labor-intensive renovation project in London during the past ten years. It took 3.5 million hours to complete this project and 26,000 sensors, 75,000 metre meter pipeline and 1.32 million meter cables were installed in the building.

could someone revise this passage about a hotel building ? Thank you so much!!

Though there is nothing grammatically wrong with the first sentence, it should be broken up into two sentences as it's really long. :)