Services

OSSA’s extensive track record in the world of underground works has allowed it to accumulate a great wealth of experience in all aspects of this kind of work. OSSA’s experienced personnel are fully capable of handling the most complex projects involving installations in underground works: lighting, electrical systems, safety systems, ventilation, etc. Among them it is worth highlighting the waterproofing works that OSSA carries out through its affiliate HISISA. In addition, OSSA provides technical assistance to companies and entities requiring support in the execution of underground projects.

The extensive experience accumulated by OSSA’s engineers allows them to provide technical assistance to companies that, without OSSA’s support, would be unable to undertake complex underground works projects. OSSA’s technical assistance is a guarantee of success.

OSSA carries out the waterproofing on all the works it undertakes, as well as working for third parties, through its affiliate HISISA.

In the tunnel projects carried out by OSSA, especially those involving metro and railway lines,  OSSA has executed all the installations required in order to assure a good standard of service to users.

SOME OF OUR WORKS

Waterproofing B-40 Tunnel

Waterproofing B-40 Tunnel

Project Information: The work consists of installing two...

Waterproofing Pedralba Tunnel

Waterproofing Pedralba Tunnel

Project Information: The work consists of installing two...

Waterproofing Mondragón-Elorrio Section

Waterproofing Mondragón-Elorrio Section

Project Information:  Tunnel: Consists of installing sheets that...

Gilboa HydroPower Project

Gilboa HydroPower Project

Project Information: Technical consultancy for Inner Lining Concrete...

New Llamaquique Local Railway Station

New Llamaquique Local Railway Station

Project Information: Construction of New Railway Station of...

New Miribilla Station

New Miribilla Station

Project Information: Construction of the New Miribilla Station,...

Santiago Metro. Civil Construction Works Los Leones Station: Line 6

Santiago Metro. Civil Construction Works Los Leones Station: Line 6

Project Information: Los Leones station will be both a...