HVAC electro-mechanical

Electro-mechanical works in Al Khumrah

In Al Khumrah, south Jeddah, electro-mechanical work on AC and refrigeration spans spacious villas, commercial buildings and mixed-use blocks. Alrabih ensures power panels, wiring and pumps fit each project's needs, whether standalone or central.

  • Power panels
  • Control automation
  • Site coordination

Clients We're Proud to Serve

Organisations and companies that trusted Alrabih with their projects.

  • Saudi Aramco
  • Ministry of Energy
  • Royal Saudi Land Forces
  • Royal Saudi Naval Forces
  • Al Baik
  • Centro Hotels by Rotana
  • King Abdullah Economic City
  • First Mills
  • Juffali
  • eXtra
  • Dr. Soliman Fakeeh Medical Center
  • Alesayi Motors
  • Abu Zaid
  • Water Desalination
  • Attieh Steel
  • SSCO
  • Creet
  • Emad Rizq
  • Alfaneyah
  • Rawat Alam Al Tasmeem
  • IBI Magix Arabia — Construction Services
  • Midtown for Construction
  • Petra Engineering Industries Co.
  • Hyrmas
  • Batterjee Medical College
  • Advanced Horizons Contracting Company
  • D.Metals
  • Benchbox — Masters of Space
  • Sadafco
  • Umm Al-Qura University
  • Saudi Arabian Drug Store (SADS)
  • Foamco
  • Ahmad A. R. Bin Afif Industries Co. (Sandwich Panel Factory)
  • Namariq
  • ALS

When these works are needed

  1. 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. 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. 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 WhatsApp
  • Your 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.

    Ask on WhatsApp

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
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How we work

How we work

  1. 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. 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. 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. 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?

AlrabihThe usual way
Electrical panelSized for the actual loadRough sizing causes problems later
Control wiringDocumented to drawingsRun without documentation
Site coordinationFollowed with every tradeEach trade works in isolation
Start-up testFull test before handoverFaults found after handover
Change documentationRecorded at handoverVerbal changes, no record

Some of our work

Ductwork, rooftop units and diffusers, from work we've completed in Jeddah.

  • Galvanized rectangular duct trunk with branch takeoffs and round diffusers, hung from a black ceiling, a Carrier unit visible behind — interior finishing stage.
  • Round diffusers and a spiral duct trunk in a tiled stairwell service shaft.
  • Rooftop ductwork and an exhaust fan, with Jeddah buildings in the background.
  • Rooftop packaged AC units with rectangular duct transitions, city buildings behind.
  • Insulated rooftop duct run beside a packaged unit, a warehouse roof in the background.
  • A grid of round diffusers in an open-plan office ceiling, mid-construction.
  • An insulated rooftop duct elbow, against a mountainous backdrop.
  • Large insulated ductwork running along a factory ceiling, with workers visible below.
  • A yellow round diffuser mid-installation, with spiral duct and a suspended ceiling grid.
  • Duct insulation wrap in progress on a construction site, bare duct still exposed.
  • A black-painted duct trunk with round diffusers and track lighting, in a finished retail interior.
  • An indoor AHU unit connected to round ductwork in a mechanical plant room, exposed concrete ceiling.
Similar project? Send us the details

Customer reviews

What our customers say

4.8

From 10 Google reviews

  • 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”

Read every review on Google

Your satisfaction matters to us! If you had a great experience with us, we'd love a 5-star rating and a kind review.

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Service 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.

Map of Jeddah by sector, with Alrabih's base in Al Aziziyah
Don't see your district?Message us. We most likely cover it.

What sets this district apart

Al Khumrah is diverse, mixing spacious villas with gardens, mixed-use commercial-residential blocks, workshops and showrooms. Electro-mechanical work here varies because some projects need separate panels per unit, whilst others require unified central systems with strong pumps and circuits. Coordinating residential and commercial needs is vital for safe, efficient design.

Al Khumrah sits in south Jeddah, a diverse zone mixing villas, mixed-use blocks, workshops and small shops.

Villas here run on standalone electrical panels, while mixed-use buildings need robust main panels feeding multiple units.

The AC setup in Al Khumrah

  1. 1

    Separate panel per villa with dedicated space

    Large villas get a separate sub-panel in a dedicated room or rear section of the villa.

  2. 2

    Strong main panel for mixed blocks with distribution sub-panels

    Mixed-use buildings have a robust main panel with distribution sub-panels for each residential or commercial unit.

  3. 3

    Pumps and equipment in dedicated rooms or protected enclosures

    Pumps and transformers are housed in dedicated rooms or thermally insulated cabinets protecting them from high heat and dust.

Before the visit

Before our visit in Al Khumrah

  1. 1

    Assess the project's electrical load needs

    Tell us whether it is a separate villa or mixed building and what main appliances and systems are planned.

  2. 2

    Confirm planned panel and pump locations

    Show us the architectural drawings and identify where the main panel, pumps and transformers will be sited before work starts.

  3. 3

    Coordinate with main contractor on pipes and wiring

    Agree with the contractor on routing for pipes and wires from panels to units and pumps.

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 does electro-mechanical work differ between villas and mixed-use buildings?

Villas need modest standalone panels, while mixed-use blocks need stronger main panels distributed across multiple units.

Villas have gardens, are there specific locations for transformers and pumps?

Yes, we site transformers and pumps in dedicated rooms or rear areas away from living spaces, with safe connections and thermal insulation.

Do summer heat and humidity affect wiring and outdoor-sited pumps?

Yes, we use enhanced-insulation wiring and protect pumps with metal covers or insulated cabinets to withstand the heat.

When should large mixed-use projects have full electro-mechanical testing before handover?

We test all circuits, pumps and fans under full load before final handover to ensure system stability.

The Jeddah corniche in cool weather

Start with a drawing review

Send us the project drawings or get in touch to set a time for a requirements review, Saturday to Thursday.

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