HVAC electro-mechanical
Electro-mechanical works in Al Mahjar
In Al Mahjar, south of Jeddah, installing the electro-mechanical systems for AC and refrigeration calls for precision in large industrial zones and warehouses. Alrabih's team manages the electrical connections, controls, pumps and fans in full coordination with the main contractor to deliver an integrated system at handover.
- Power panels
- Control automation
- Site coordination
Clients We're Proud to Serve
Organisations and companies that trusted Alrabih with their projects.
When these works are needed
- 1
A new central HVAC project
In commercial, government and industrial buildings, fitting units and ducts is not enough. You need electrical runs sized for the loads, a control panel that starts and stops equipment in the right order, and pumps and pipework designed for the building.
- 2
Extending an existing HVAC system
Adding units or new control zones means extra load on the panel and new control cabling. We review the available capacity on site and define what the extension needs before any work starts.
- 3
Electrical faults stopping the equipment
A unit that will not start despite being in good order, a pump that burns out repeatedly, breakers tripping for no clear reason: these are usually a wiring or panel problem, not a fault in the equipment, and need diagnosis from a technician who understands both sides.
Who it's for
Building a new commercial or government project
We review drawings with the main contractor and take on power panels, electrical runs, control automation, pumps and ventilation from start to handover.
Ask on WhatsAppYour HVAC equipment keeps breaking down
We diagnose the electrical and mechanical side of the system and identify whether the fault is in the panel, the wiring or the control circuits before any work begins.
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What the works cover
- Power panels and load distribution
- Electrical runs for HVAC
- Automation and control circuits
- Pumps and pipework installation
- Ventilation and exhaust fans
How we work
How we work
- 1
Review project drawings
We go through the electrical and mechanical drawings with the designer or main contractor and define the power requirements and cable routes before any materials are prepared.
- 2
Site coordination
Electro-mechanical works cross paths with civil works and finishes. We follow the site programme and agree the sequence with other contractors so no trade is held up by a clash.
- 3
Run cables and fit equipment
We pull cables, mount panels, pumps and ventilation fans, then wire the control and automation circuits according to the approved site drawings.
- 4
Coordinated testing and start-up
We test each circuit individually then run the full system together with the AC equipment, checking that automation starts and stops everything in the right order before handover.
Planned coordination or clashes that delay the project?
| Alrabih | The usual way | |
|---|---|---|
| Electrical panel | Sized for the actual load | Rough sizing causes problems later |
| Control wiring | Documented to drawings | Run without documentation |
| Site coordination | Followed with every trade | Each trade works in isolation |
| Start-up test | Full test before handover | Faults found after handover |
| Change documentation | Recorded at handover | Verbal changes, no record |
Everything your AC needs, from one team
From system design and duct fabrication to installation, commissioning and maintenance.
Split AC installation
Request this serviceDuct installation
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Request this serviceAC repair & faults
Request this serviceAC cleaning
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Request this serviceDuct cleaning & sanitising
Request this serviceAC servicing by brand
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Request this serviceAHU maintenance
Request this serviceFridge & freezer service
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Some of our work
Ductwork, rooftop units and diffusers, from work we've completed in Jeddah.
Customer reviews
What our customers say
- Muhammadramzan 2641
“MashaaAllah. Services are so good. Behaviour and kindness 100/100. Prices are less then Market. Fully recommended”
- shahzeb armani
“Wow. Prices are so comfortable. Outstanding services. People are so talented and nice”
- Tawfik AlyawerLocal Guide
“U can find all u need for air conditioning”
Your satisfaction matters to us! If you had a great experience with us, we'd love a 5-star rating and a kind review.
Worked with us? Leave a reviewService areas
We come to you anywhere in Jeddah
From Al Shiraa and Al Yaqout in the north to Al Thaghr and Al Quraiyat in the south, with our base in Al Aziziyah.
What sets this district apart
Al Mahjar is a heavy industrial and commercial zone with large warehouses and factories needing robust central cooling, and projects here typically are large, requiring dedicated electrical panels, long copper runs and tight coordination among multiple contractors. The electro-mechanical work in Al Mahjar covers connecting central cooling systems, pumps and large fans, while ensuring the electrical connections are safe under high loads.
Al Mahjar sits in Jeddah's industrial south, a zone of warehouses, parts storage and manufacturing with wide-span buildings and open spaces.
Most systems here are large-capacity central units needing separate electrical distribution panels and copper runs exceeding 20 metres.
The AC setup in Al Mahjar
- 1
Large-capacity central cooling systems
Warehouses and factories in Al Mahjar need central systems with capacities exceeding hundreds of tonnes, with powerful pumps and compressors.
- 2
Standalone electrical distribution panels
Each cooling system in Al Mahjar needs a separate distribution panel to manage power supply and control pumps and fans safely.
- 3
Long copper runs between components
The wide distances between the warehouse and outdoor units require long insulated copper runs to ensure efficient power transmission.
Before the visit
Before our visit in Al Mahjar
- 1
Confirm electrical panel location and equipment staging
Before the visit, confirm where the distribution panel will be mounted and where equipment and cables can be safely stored near the installation site.
- 2
Liaise with site manager and main contractor
Coordinate with the site manager and main contractor to confirm entry routes, working hours, and shared responsibilities when connecting to other trades.
- 3
Verify temporary power supply is available
Ensure the site has safe temporary electrical connections available to power installation and testing equipment before connecting to the main supply.
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FAQ
Questions about Electro-mechanical works
Can you handle the electro-mechanical works when there is already another civil contractor on site?
Yes. We work as a specialist subcontractor alongside the main contractor, coordinating cable routes, pipework and equipment positions with the other trades on site. Before work begins, we identify where our scope crosses the civil and structural work and agree on the sequence of installation to avoid clashes.
What is the difference between the power circuit and the control circuit in an HVAC project?
The power circuit carries current from the panel to the compressor, motor or fan; cable size is set by the load. The control circuit carries low-voltage signals between sensors, thermostats and the controller; it issues run, stop and modulation commands. A fault in either circuit disables the whole system, so each is routed and terminated independently.
Does your work include connecting the automation system to a building management network?
Yes, when a building management network is already present on site. We connect the HVAC control units to the designated interface points and test signal exchange between the two sides. Protocol details and configuration are agreed with the team responsible for the building management network before installation begins.
How do you handle a clash between cable routes and ducts or pipework?
We identify clashes at the planning stage before installation starts, then consult the relevant trades to agree on an alternative route. If a site resolution is not possible, the clash is escalated to the project supervisor for a decision. Priority is always given to keeping the correct bending radius for cables and the required fall on condensate drain pipes, as compromising either affects system performance.
How do you handle a clash between cable routes and ducts or pipework?
Clashes between cable routes, ducts and pipework are common on medium and large projects. We identify them during the drawing review stage, before any trenching or pulling begins, and agree an alternative route with the trades involved. Changing a route on paper is far simpler than reworking it on site.
How do you handle electrical connections in large warehouses?
We design dedicated electrical distribution panels for each cooling system, and connect pumps and fans with insulated copper wiring sized to match the building's electrical capacity.
Can your team access the warehouse floor with installation equipment?
Yes, but we need advance coordination with the site manager to confirm access routes and temporary equipment storage away from production lines or stock.
Does the hot and humid environment in Al Mahjar affect the wiring and connections?
We use high-grade insulated wiring rated for heat and humidity, and mount electrical panels in shaded locations or protective enclosures to keep the connections safe.
How do you ensure all parts work together at final handover?
We test every component from the electrical panel, pumps and fans before final start-up, and provide the main contractor with a comprehensive test report confirming all connections and the start-up sequence are safe.
