About Us

Commercial Sub Service S.r.l. is a company specialising in underwater and maritime works, based in Civitavecchia. Thanks to consolidated technical skills, more than 30 years of site experience more than 30 years and the support of a team of highly qualified O.T.S, we offer a professional service with full availability for consulting technical advice, operational planning and optimisation of safety standards.

We operate continuously in the port area, in maintenance on oil platforms oil platforms and in interventions at thermoelectric, hydroelectric and coal-fired power stations. We also carry out technical and research activities with professional professional equipment and state-of-the-art technology

Services

Port infrastructure and maritime works

We specialise in the construction and maintenance of port infrastructure and maritime works, supporting shipyards and port authorities in all operational phases. We carry out installation, maintenance and structural consolidation work on quays and sea beds, guaranteeing operational precision, continuity of work and full compliance with safety standards. Activities also include operations on live work on vessels and mooring systems.

Civil and industrial underwater works

We perform civil and industrial underwater works in support of infrastructures, plants and complex construction sites. We carry out metalwork, underwater cutting and welding, protective treatments and technical cleaning operations, as well as assisting in the laying of pipelines of various types. Each activity is carried out with controlled procedures and certified equipment, in compliance with safety and quality requirements.

Energy, offshore and large installations

We operate in the energy and offshore sector, guaranteeing interventions on large plants and strategic infrastructures. We perform ordinary and extraordinary maintenance on energy production plants and oil and gas platforms, as well as work on photovoltaic systems installed on dams.
Operations are carried out according to strict technical and safety protocols, ensuring operational continuity and reliability over time.

Inspections, surveys and specialist activities

We perform inspection, surveying and specialised support activities aimed at the technical evaluation and documentation of underwater environments. We carry out soundings, bathymetric and topographic surveys, R.O.V. activities and underwater filming services, also operating in specialised fields such as underwater archaeology and the search for war remnants. We also provide underwater assistance for film productions and operate in compliance with the procedures required for R.I.N.A. certifications.

Other Services

We design, build and manage installations in the civil and industrial sectors, with solutions oriented towards energy efficiency, safety and full regulatory compliance. We also carry out building and complementary works, from renovation to finishing, guaranteeing complete and coordinated interventions, carried out according to high quality standards

- Advanced plant design
- Centralised heating systems
- Air conditioning and ducted air conditioning
- Underfloor heating
- Cogeneration and micro-cogeneration
- Swimming pool installations
- Photovoltaics, solar thermal and thermodynamics
- Certified installations and gas lines
- Third Plant Manager
- Energy efficiency and renewable energy consulting
- Thermal, electrical and plumbing installations
- Sanitising premises and installations
- Residential plant certifications
- Pellet boilers and stoves
- Civil and industrial renovations
- Thermal coat
- Carpentry and provisional works
- Paintings and decorations
- Flooring and cladding
- Demolition and Disposal
- Insulated and wooden roofs
- Supply and installation of fixtures
- Ironwork

Contact us for more information on our services

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