Dedicated duct workshop
Duct fabrication in Industrial City
In Industrial City, south Jeddah, food, textile and assembly factories operate at large scale and need precisely fabricated ductwork made in the workshop. Alrabih fabricates rectangular and round duct to high standards to suit massive central cooling systems.
- G90 sheet
- Site dimensions
- Complex fittings
Clients We're Proud to Serve
Organisations and companies that trusted Alrabih with their projects.
Who needs workshop-fabricated duct?
- 1
A contractor with project-specific sizes
Your project has non-standard sizes or volumes too large for site cutting. We fabricate rectangular and round sections from your drawings at exact dimensions, labelled and ready to hang when they reach the site.
- 2
Fittings too awkward to cut on site
Elbows, transitions, offsets and takeoffs come out distorted when cut by hand on site, leaking air and creating noise in the line. We make them in the workshop at the right dimensions with tight seams.
- 3
Extending or renovating an existing duct network
You need new branches, a damaged section replaced or a fitting that matches an old duct size. We measure the existing network on site and fabricate the pieces to match what is already there.
Who it's for
Building a facility that needs non-standard duct sizes
We read your project drawings and fabricate all sections and fittings at exact dimensions from G90 or aluminium sheet, labelled and ready to hang the moment they reach your site.
Ask on WhatsAppRenovating home AC and need fittings to match old duct
We measure the existing ductwork in your home and fabricate the branches, transitions and elbows needed to match the original duct without replacing the whole network.
Ask on WhatsApp
What the fabrication covers
- Site measure or drawings
- G90 or aluminium duct
- Elbows transitions and takeoffs
- Tight seams to SMACNA
- Labelled sections ready to hang
How we work
How we work
- 1
Take measurements
A technician visits the site or you send us the drawings; we list every duct section needed, its size and the correct sheet thickness for that section.
- 2
Fabricate sections and fittings
We cut, form and lock the sheet in the workshop, including all elbows, transitions, offsets and takeoffs, and each section comes out at its exact dimension.
- 3
Label and prepare for delivery
We number every section and fitting against the assembly plan so the installation crew knows exactly where each piece goes, with no guessing on site.
- 4
Deliver to site
We deliver the duct to your Jeddah site protected and ready to hang. If you need an installation crew, we can arrange that as a separate step.
Workshop fabrication or site cutting?
| Alrabih | The usual way | |
|---|---|---|
| Dimensional accuracy | Workshop machines, tight dims | Hand variation on site |
| Complex fittings | Correct elbows and transitions | Distorted, leaking air |
| Seam quality | Tight lock, low leakage | Gaps weaken pressure |
| Site schedule | Arrives ready to hang | Extra time and site noise |
| Salt and humidity | Aluminium where site demands | One sheet regardless |
Everything your AC needs, from one team
From system design and duct fabrication to installation, commissioning and maintenance.
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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
Industrial City houses heavy factories specialising in food processing, textiles and automated assembly, all needing continuous, reliable cooling to protect production lines and products. The central system runs at high power and may have special air filtration or isolation needs, requiring duct fabricated to very tight tolerances. Cutting duct on site cannot achieve this precision and risks production disruption, whereas pre-fabricating in the workshop ensures reliable performance.
Industrial City in south Jeddah is a dense industrial park of specialised heavy and medium factories with advanced mechanical equipment.
Most factories in Industrial City run high-power central cooling with rectangular and round duct spanning very large areas.
The AC setup in Industrial City
- 1
High-capacity central duct system with multiple levels
Large factories need a precisely calibrated main duct branching to multiple levels covering production lines and storage areas.
- 2
Round duct and special ducts for sensitive zones
Some production zones may need round duct or special conduits for air quality and filtration, which we fabricate to very high standards.
- 3
Tight joints with precise system documentation
Every joint is fabricated to extremely high precision with complete system documentation to simplify later maintenance and audit.
Before the visit
Before our visit in Industrial City
- 1
Provide complete system engineering drawings
Provide complete system drawings including production lines, the central unit and all required branches before the visit.
- 2
Tell us available production shutdown windows
Confirm when production can be safely halted for installation without line disruption.
- 3
Coordinate access and heavy equipment needed
Discuss with us access to different areas and any cranes or lifting equipment needed for heavy duct handling and installation.
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FAQ
Questions about Duct fabrication
Can you fabricate from drawings without visiting the site?
Yes, when the drawings are clear and carry the actual as-built dimensions. If a dimension is uncertain or a field change has been made, we prefer a site visit to avoid a fabricated piece that does not fit. We discuss the better approach with you before starting work.
What is the difference between galvanized and aluminium sheet for duct?
G90 galvanized sheet is the standard choice for interior duct: strong and suited to a range of pressures. Aluminium is lighter and handles Jeddah's coastal humidity and salt air better, making it right for some exposed applications or where structural load is a limiting factor. The correct choice depends on the site.
Can you make elbows and transitions to match an existing duct network?
Yes. We measure the existing network on site to match sizes precisely, whether you need a new branch added, a damaged fitting replaced or an extension tied into the original ductwork. The right approach is confirmed after the site visit.
How do you choose sheet thickness for each section?
Thickness follows section size: a large duct needs heavier sheet to hold its shape under pressure, a small one can use lighter material. We apply the SMACNA requirements to each section in the project individually, not a single thickness across the whole job.
Does Jeddah's humidity and salt air affect which sheet material to use?
Yes, particularly for sections exposed to outdoor air or installed near fresh-air intakes. G90 galvanized sheet performs well inside the building, but aluminium is the better choice where duct is in continuous contact with Jeddah's humid, salt-laden air. The site survey determines the right material for each section.
We need multi-level ductwork in our factory, can you fabricate it entirely in the workshop?
Yes, we fabricate a complete duct system in main sections and multi-level branches to your engineering drawings, delivered in safe transport sections for assembly.
Our production lines are sensitive to delays, how do you speed up installation?
Pre-fabrication greatly reduces on-site time, so the duct arrives ready for direct installation with no cutting or adjustment, minimising production stoppage.
The factory runs very hot, can the duct withstand this?
We use high-grade galvanised material that withstands high heat and humidity, and may add special insulation to suit the system and keep cooling efficiency high.
We need precise calibration of air distribution across production lines, how do you ensure this?
We fabricate branches sized to calculated airflow requirements per zone, coordinating with your system engineers to ensure optimal balance before installation.
