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Engineering & Construction

Engineering Construction Main Banner
The Engineering & Construction (E&C) division of Rezayat Group offers comprehensive EPC (engineering, procurement, and construction) and LSTK (lump-sum turnkey) solutions for key industries. Our services span the power, oil & gas, water, petrochemical, and other industrial infrastructure sectors. Our cluster consists of three specialized companies: National Contracting Co. Ltd (NCC), Rezayat Company Limited (RCL) and 4A Design & Engineering Private Ltd. Each company contributes its own technical expertise and sector-specific capabilities to our projects. Our core strengths:
  • Strong regional presence
  • Advanced engineering expertise
  • Integrated project controls
  • Strict adherence to HSE standards and commitment to quality assurance
  • Consistent on-time project delivery
  • Alignment with client and regulatory requirements
Engineering Construction Main Banner
The Engineering & Construction (E&C) division of Rezayat Group offers comprehensive EPC (engineering, procurement, and construction) and LSTK (lump-sum turnkey) solutions for key industries. Our services span the power, oil & gas, water, petrochemical, and other industrial infrastructure sectors. Our cluster consists of three specialized companies: National Contracting Co. Ltd (NCC), Rezayat Company Limited (RCL) and 4A Design & Engineering Private Ltd. Each company contributes its own technical expertise and sector-specific capabilities to our projects. Our core strengths:
  • Strong regional presence
  • Advanced engineering expertise
  • Integrated project controls
  • Strict adherence to HSE standards and commitment to quality assurance
  • Consistent on-time project delivery
  • Alignment with client and regulatory requirements

Products and Services

General Building Construction

General Building Construction

Building durable structures across industrial, commercial, and residential sectors.
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Civil Construction

Civil Construction

Developing infrastructure like roads, foundations, and utilities.
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Operation and Maintenance

Operation and Maintenance

Maintaining facilities for smooth, efficient operation.
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Facility Management

Facility Management

Overseeing daily facility operations and maintenance.
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Electro-mechanical Services

Electro-mechanical Services

Installing and maintaining HVAC (heating, ventilation, and air conditioning) and refrigeration systems.
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Building Assessment, Civil Solutions and Specialties

Building Assessment, Civil Solutions and Specialties

Providing tailored civil engineering and structural solutions.
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Concrete Repairs

Concrete Repairs

Repairing and restoring damaged concrete structures.
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Engineering Design Services

Engineering Design Services

Specialized in detailed engineering for EHV substations, transmission lines, underground cables, and infrastructure projects across power and building sectors.
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Proposal Engineering and Consultancy Services

Proposal Engineering and Consultancy Services

Providing strategic support in proposal engineering, technical documentation, and consultancy to help clients secure and execute complex infrastructure projects efficiently.
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Additional Specialization

Additional Specialization

Specialization in hot line crossings and working on live lines, hot tie-in connections at process plants.

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Oil and Gas

Oil and Gas

With over 5 years of experience, we undertake a wide range of maintain potential and upgrade projects as a lump-sum turnkey (LSTK) and lump-sum procure & build (LSPB) contractor.

Project expertise:

  • Gas–oil separation plants
  • Refineries
  • Petrochemical facilities
  • Bulk storage plants
  • Gas plant facilities
  • Seawater transmission projects
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Electromechanical Construction in other sectors

Electromechanical Construction in other sectors

With over 30 years of experience, we specialize in undertaking electromechanical (EMI) construction works across diverse sectors.

Sector expertise:

  • Petrochemical
  • Mining
  • Fertilizer
  • Paper plants
  • Turnaround (shutdown)
  • Operation and maintenance
  • Tie-in connections in process plants
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High Voltage Substation and Power Transmission Line

High Voltage Substation and Power Transmission Line

With over 40 years of industry leadership, we are established as a trusted expert in the execution of extra high voltage transmission and distribution projects.

We undertake projects as EPC (engineering, procurement, and construction) on a lump-sum turnkey (LSTK) basis, delivering reliable, high-quality solutions across the full power infrastructure spectrum.

Capabilities:

  • AIS – outdoor substations up to 400 kV
  • GIS – gas-insulated substations up to 400 kV
  • AC overhead transmission lines up to 765 kV
  • ±DC overhead transmission lines up to 500 kV
  • Underground cabling up to 400 kV

Services include:

  • Maintenance of overhead transmission lines, including retrofitting of overhead ground wire with OPGW and fiber optic cable installation associated with power lines
  • Maintenance of equipment up to 400 kV substations
  • Extension, modification, upgrading, integration, and maintenance of substations

We prioritize safety in all our operations, adhering to the highest industry standards to protect our workforce, utilities, and the communities we serve.

Utilizing world-class software, we deliver precise and optimized solutions, ensuring the highest quality and performance in every project. We pride ourselves on delivering high-quality services that meet the evolving needs of the energy sector. From concept development to final handover, we follow a structured project management approach aligned with international standards and best practices across utilities, industrial, and infrastructure sectors.

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Fiber Optic Installation

Fiber Optic Installation

In addition to our main area of business, we are experts in:

  • Retrofitting of overhead ground wire / optical ground wire
  • Fiber optic cable installation works associated with power lines. Experts in substation expansion / modification works.
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Power Generation

Power Generation

With over 30 years of experience, we specialize in executing diverse power generation projects as an EPC (engineering, procurement, and construction) contractor, including testing and commissioning on a lump-sum turnkey (LSTK) basis.

Project expertise:

  • Simple cycle power plants
  • Combined cycle power plants
  • Conversion of simple cycle to combined cycle power plants
  • Cogeneration plants
  • Diesel generator
  • Oil-to-gas fuel conversion in existing facilities
Our services also extend to grid substation interfaces, as well as the operation and maintenance of power plants until final handover to the client
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High Voltage Maintenance Work

High Voltage Maintenance Work

Proven records in maintenance of substations and overhead transmission lines, plant operation and maintenance, warranty support services.

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Contact us

We would appreciate the opportunity to better understand your requirements and explore how we can support your objectives.

Kingdom of Saudi Arabia
013 663 6000 Ext. 1104
info.eccluster@rezayat.net