


30+ Years in HVAC & Electromechanical Systems
Nefal was founded in 1993 with deep-rooted expertise in air conditioning and ventilation, building its place as a trusted engineering partner across Saudi Arabia.
Today we deliver integrated electromechanical solutions: HVAC, electrical, plumbing and fire-fighting, from design and supply to installation, commissioning and warranty.
Why Nefal?
A clear engineering method from design to handover.
Execution to Precise Engineering Drawings
We build to approved drawings and load studies, reviewing every route and technical detail before and during execution.
Architectural & MEP Coordination on Site
We coordinate HVAC routes with architecture, electrical, fire and plumbing trades to avoid clashes and keep the system integrated.
Testing & Commissioning Before Handover
Pressure, leak and air-balance tests plus final commissioning, to confirm performance and stability before handover.
In-House Duct Plant & Field Crews in Riyadh and Khobar
An automated SMACNA duct fabrication plant, with execution and maintenance crews covering the Central and Eastern regions.
Integrated HVAC & MEP Solutions… Under One Roof
From drawing review and load calculation to execution, testing, commissioning and maintenance.
HVAC Systems
Integrated solutions covering central AC and chillers, VRF / VRV, concealed and evaporative cooling, and ventilation systems.
DetailsElectrical Works
Execution, cabling and distribution of electrical works to the project's drawings and requirements.
DetailsFire Fighting
Fire-fighting, sprinkler and pumping networks with testing, within the project scope and approved requirements.
DetailsPlumbing Works
Water and drainage networks, sanitary fittings, and pressure and leak testing.
DetailsHVAC Contracting Services for Projects
Integrated HVAC contracting for residential and commercial projects: engineering design, professional execution, and handover to approved drawings.
Chilled Water Central Systems
DetailsThese systems use chiller units to cool water, which is then pumped through a piping network to air handling units and fan coil units that cool the different spaces inside the building.
VRF / VRV Smart Inverter Systems
DetailsThese air conditioning systems connect several indoor units to one outdoor unit or a group of interconnected outdoor units, and vary the refrigerant flow according to the needs of each zone, providing independent control and operational flexibility.
Rooftop Central Package Units
DetailsThese systems include packaged units, which combine all cooling components in a single unit, and split units, which consist of an outdoor unit and an indoor unit. Conditioned air is distributed through a ductwork network.
Concealed Ducted Systems
DetailsConcealed (ducted) AC uses an indoor unit installed inside the false ceiling, connected to an outdoor unit and a ductwork network, to distribute air through outlets that suit the interior design without the unit being visible.
Ductwork Fabrication & Layouts
DetailsWe fabricate and install ductwork to each project's dimensions and specifications, for efficient air distribution and easy operation and maintenance.
Mechanical Ventilation & Fresh Air
DetailsVentilation systems bring in outside air and extract unwanted air in carefully calculated quantities, helping to improve indoor air quality and reduce the build-up of odours, humidity and pollutants.
One Team from Drawing to Handover
Engineering and execution experience across every project stage, with supervision and testing before handover.
Experience
30+ years of technical planning, system design and project delivery.
Engineering Drawings
Shop drawings, coordinated layouts and full project documentation.
Multi-Scope Execution
HVAC, electrical, fire and plumbing in one project under one coordination.
Testing & Commissioning
Pressure, leak and air-balance tests with performance checks before handover.
Site Supervision
Installation supervision, technical coordination and on-site quality control.
Selected Projects We Delivered
Examples of our HVAC and electromechanical work for a wide range of projects across the Kingdom.
- System Type
- Concealed System
- City
- Riyadh
- Cooling Capacity
- 16300+ TR
- Brand
- LG
- Scope
- HVAC and ventilation for classrooms and school facilities
- System Type
- Package & Concealed System
- City
- Riyadh
- Cooling Capacity
- 4600+ TR
- Brand
- Daikin
- Scope
- HVAC and ventilation for lecture halls and large teaching spaces
- System Type
- Package & Concealed System
- City
- Riyadh
- Cooling Capacity
- 3400+ TR
- Brand
- Trane
- Scope
- HVAC and ventilation across resort facilities and guest units
- System Type
- Chilled Water System
- City
- Riyadh
- Cooling Capacity
- 1500+ TR
- Brand
- Dunham-Bush
- Scope
- Chilled water network, insulated piping and rooftop plant
- System Type
- VRV System
- City
- Riyadh
- Cooling Capacity
- 1800+ TR
- Brand
- Daikin
- Scope
- Fan coil units, ductwork and internal distribution across office floors
- System Type
- VRF System
- City
- Riyadh
- Cooling Capacity
- 1700+ TR
- Brand
- Toshiba
- Scope
- HVAC and ventilation for guest rooms and hotel facilities
Our Scope Across HVAC Projects
We deliver HVAC projects at every scale, from private villas to towers, malls and government projects, to each project's requirements and operating standards.
Commercial Plazas & Malls
Towers & Hospitality Buildings
Touristic Resorts & Villages
Schools & Educational Centers
Restaurants & Cafés
Mosques & Prayer Halls
Residential Compounds
Villas & Private Palaces
Sports Clubs & Gyms
Government & Civil Projects
Administrative & Office Hubs
Factories & Warehouses
We study each project and select the most suitable system for performance, efficiency and operating needs.
How We Deliver Projects at Nefal
A structured sequence that guarantees execution accuracy, reliable operation, and handover to the approved drawings.
Project Study & Requirements
Analysing the project, its spaces and operating needs, and calculating thermal loads to build an accurate engineering picture before work starts.
Design & Drawing Approval
Preparing, reviewing and approving shop drawings, and coordinating all routes with the architecture and other systems.
Execution & Installation
Installing HVAC, ductwork and services to approved drawings under technical supervision, fully coordinated across trades.
Testing & Handover
Testing, commissioning and air balancing to confirm performance before handover and the move into operation and maintenance.
This method ensures every HVAC project is built on a real load study, the right system selection, and efficient execution that delivers stability and a long operating life.
Explore systems & services in detailStrict Quality & Safety Standards
To ensure compliant execution and reliable delivery.
QA/QCQuality Control
Ongoing inspections and hold points to meet specifications.
HSESite Safety
Daily safety practices with full HSE compliance.
TestingTesting & Verification
Performance testing and balancing for system readiness.
DocumentationDocumentation
Test reports, As-Built drawings and O&M manuals.
Three Decades of Growth
Founded in Riyadh
Nefal began work in air conditioning and ductwork.
Khobar Branch Opens
Extending our services to projects in the Eastern Province.
Integrated Electromechanical Services
Expanding our scope to electrical, fire-fighting and plumbing works.
Projects Delivered
A continuing presence across residential, commercial, hospitality and industrial projects.
AC Maintenance Contracts for Homes & Buildings
Periodic maintenance contracts for residential and commercial AC systems, designed to keep efficiency high, cut sudden breakdowns, and extend system life under a structured programme.
- Periodic inspection and unit/filter cleaning
- Leak testing and fault repair
- Operation tuning and performance follow-up
- Original spare parts from authorised agents
Clients Trust Nefal to Deliver Their HVAC Projects
With over three decades executing HVAC and MEP systems for residential, commercial and government projects, Nefal is a trusted partner to owners, contractors, consultants and government bodies.
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What Our Clients Say
Real reviews from clients we delivered HVAC and MEP projects for.
Accreditations & Official Certificates
We work to technical and regulatory standards, under systems certified by official bodies.
HVAC Insights From Our Field Experience
Practical know-how and technical tips on HVAC and ventilation, drawn from real projects in residential and commercial buildings.

Linear AC Diffusers (FlowBar) and How to Combine Design with Air Distribution
Thin lines in the ceiling may look like part of the lighting or an architectural detail, while in fact they are openings for distributing AC air.
Read Article
Water Leakage Around AC Pipes and the Importance of Sealing Roof Openings
Rainwater can seep in through a small gap around AC pipes where they exit onto the roof, even when the pipes themselves are intact.
Read Article
The Air Handling Unit (AHU) and How Fresh Air Reaches Inside the Building
Providing fresh air inside a building requires more than an opening connected to the outside; outdoor air may be hot and laden with dust and humidity, and it needs treatment suited to the conditions of the site.
Read Article
Send Us Your Drawings, Get a Clear Study Back
Our engineering team reviews your drawings, calculates the thermal load and recommends the system that fits the building's use and your budget — before you commit to anything.










































