SAUDI ENGINEERING · FIELD DELIVERY · DOCUMENTED RESULTS
Integrated engineering solutionsfor water, automation and infrastructure
We deliver rehabilitation, commissioning and maintenance for industrial systems and water facilities, connecting process, equipment, electrical and controls until the result can be tested, operated and handed over.
WATER · AUTOMATION · INFRASTRUCTURE
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ABOUT UNITED NAAS
We start with the technical problem, not a task list.
United NAAS acts as an engineering and delivery partner for water, automation and electromechanical projects. We first identify what prevents the system from performing, then define a clear rehabilitation, execution and testing scope.
This approach is especially important in live facilities where design, supply and operation responsibilities overlap and successful rectification depends on reading the complete process.
20+projects and documented delivery experience
6disciplines coordinated in one scope
KSAdelivery and support across the Kingdom
SERVICES & EXPERTISE
Capabilities built around field requirements.
We do not deliver disciplines in isolation. We connect mechanical process, power, controls and testing while keeping responsibilities clear throughout delivery.
Water & Wastewater
RO, BWRO, STP, MBR, grey-water and chemical-dosing systems.
Automation & Controls
PLC, SCADA, VFD, instrumentation, signals and functional integration.
Electrical Works
MCC panels, cables, protection, electrical testing and equipment integration.
Mechanical Works
Pumps, blowers, piping, valves, installation and maintenance.
Operations & Maintenance
PM and RCM programs, reliability improvement, operational support and outage response.
Rehabilitation & Commissioning
Condition assessment, rectification, functional testing and documented handover.
ENGINEERING INTELLIGENCE
We read the complete system—not each asset in isolation.
Technical strength comes from connecting process, equipment, power and controls. Continue scrolling to move automatically through each analysis layer before execution decisions are made.
Can the hydraulic and treatment path achieve the required performance?
We review hydraulic balance, treatment sequence, actual capacities and bottlenecks before recommending any replacement or modification.
- Flow and capacity at each stage
- Bottlenecks and recirculation
- System-wide impact of changes
ENGINEERING OUTCOMEA scope based on the root cause—not the symptoms.
SYSTEM VIEWPROCESS → CONTROL
DECISION BASISDATA + FIELD
DELIVERYTESTABLE SCOPE
STATUSCONNECTED
ENGINEERING DELIVERY FRAMEWORK
A clear engineering path—from understanding the site to provable handover.
The stages are not isolated headings. They are connected decisions that move the project from its existing condition to a tested and documented system.
FIELD01Existing condition
DESIGN02Coordinated solution
BUILD03Integrated execution
VERIFY04Logic & performance
READY05Documented handover
FIELD DATA ACQUIRED20%
Assessment
We assess the existing system on site, identify constraints, tie-in points and what prevents the asset from performing.
- Existing-condition review
- Fault and constraint identification
- Scope boundary definition
LIVE LIFT STATION SCADA
A simplified lift station that responds to your commands and operating values in real time.
Change the control mode, adjust inlet flow, run the pumps manually or let AUTO logic manage the level. Values, trends and alarms update live.
PROCESS OVERVIEWAUTO / NORMAL
INLET FLOW38 m³/h
WET WELL54%
HH 90%
P2 78%
P1 62%
STOP 30%
LT-101
DISCHARGE0 m³/h
0.4 bar
LEVEL54%
FLOW0 m³/h
PRESSURE0.4 bar
ENERGY0.0 kW
WET WELL LEVEL TREND54%
DISCHARGE FLOW TREND0 m³/h
EVENTS & ALARMS
OPERATIONAL READINESS GATE
Operational readiness is not assumed—it is demonstrated through clear verification gates.
This model shows what we review before a system is considered ready. Select a gate to view its verification points.
01GATEMECHANICAL COMPLETE
Are equipment, piping and valves installed and ready for safe inspection and operation?
Installation, direction and tie-in verification
Closure of observations affecting operation
Lubrication, alignment and mechanical guarding readiness
We do not move to operation because installation looks complete. We verify that assets can be tested without creating new risks or failures.
SELECTED CASE STUDIES
Projects presented through their outcomes and operational value.
Each case study focuses on scope, engineering challenge and what was achieved on site.
PIF Tower Water Systems Rehabilitation – KAFD
Rehabilitation and commissioning of three existing systems—BWRO, Kitchen RO and Grey Water—inside a live facility requiring precise coordination and clear testing and handover boundaries.
ScopeRehabilitation & Commissioning
SystemsBWRO · Kitchen RO · Grey Water
MBR Wastewater Treatment Plant Rehabilitation & Commissioning
A multidisciplinary intervention covering piping, instrumentation, dosing and CIP systems, blower maintenance, panel rehabilitation and automatic-function testing for critical equipment.
ClientWETICO
ScopeMechanical · Electrical · Control
ENGINEERING INSIGHTS
Technical knowledge that helps clients make better decisions.
Short notes drawn from rehabilitation, commissioning and integrated systems—explaining where problems begin and how to assess them before approving a solution.
COMMISSIONING · 6 MINWhy can commissioning fail when every asset runs individually?
A running pump or panel does not mean the system is ready. The gap is often in signals, interlocks and operating sequence.
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Proper testing starts with the complete operating scenario: start permissives, failure modes, alarm response and agreement between field readings, PLC values and the operator interface. Commissioning is therefore an integration test—not a collection of isolated equipment tests.
RO SYSTEMS · 5 MINBefore replacing RO membranes, what should be checked first?
Low production or high pressure may originate in feed conditions, dosing or measurement—not only the membranes.
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We compare flow, pressure and conductivity across the stages, then review filters, dosing, recovery ratios and calibration. Replacing membranes without this assessment can allow the problem to return and add cost without resolving the root cause.
PLC / SCADA · 7 MINFrom the I/O list to process performance: where does the control gap occur?
Complete signals in the program do not guarantee that the logic reflects process needs or protects equipment.
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We link every signal to its operating function, then review cause-and-effect, interlocks, alarm limits and failure states. The target is not an attractive screen, but logic that makes the system behave correctly in normal and abnormal operation.
PROJECT FOOTPRINT
Delivery across different sites and operating conditions.
Browse the cities to explore our delivery footprint and the range of site conditions we work within across the Kingdom.
04selected projects
CENTRAL REGION
Riyadh
Water-system rehabilitation, RO membrane replacement, odour-control works and rehabilitation of live facilities and warehouses.
- KAFD – PIF Tower water systems rehabilitation
- Al-Shumaisi – RO membrane replacement
- Al-Hair & Heet – odour control systems
- NWC – central warehouse rehabilitation
LEADERSHIP & CORE TEAM
Executive leadership backed by specialized engineering expertise.
United NAAS brings together executive direction, technical depth and field experience to support faster decisions, tighter coordination and more reliable delivery.
01
Chief Executive Officer
Eng. Fahad Nasser Al-Awaji
Leads the company’s executive direction, business development, strategic partnerships and growth path, supported by a strong engineering background in instrumentation, electrical systems and automation.
Executive LeadershipBusiness GrowthEngineering Oversight
QUALITY, HSE & CONTROL
Quality is not a final activity; it is how decisions are made.
Safety, risk control and technical documentation are embedded from initial assessment through final handover.
Risk Management
Identify site risks and operational interfaces before work begins.
Quality Control
Inspection, testing and acceptance points linked to the actual work scope.
Field Safety
Permits, isolations, PPE and procedures for confined-space and electrical work.
Documentation & Handover
Test results, open items and responsibility boundaries that can be reviewed.
PROJECT ENQUIRY
Share the technical challenge, not only the project name.
Send the scope, problem description or essential contact information. We will use it to understand the requirement and define the next step—not to send a generic response.
01Initial scope reviewDetermine whether the available data is sufficient for pricing or requires clarification.
02Appropriate technical routingRoute the enquiry to the relevant water, mechanical, electrical or controls discipline.
03Structured responseA clear list of missing information and a proposed next step instead of open-ended correspondence.