Dedicated duct workshop
Duct fabrication in Al Owaija
In Al Owaija, north-east Jeddah, factory and industrial warehouse projects need ductwork systems to high technical standards. Alrabih fabricates ductwork from the workshop with exact dimensions, strong connections and ready for quick installation.
- 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
Al Owaija is a growing industrial zone with factories, workshops and large industrial warehouses, each needing complex and reliable cooling and air distribution systems to protect goods, materials and workers from intense heat. Factories especially need ductwork with large sections and strong connections able to withstand high temperatures and strong air pressure. On-site cutting is insufficient, as industrial systems cannot tolerate air loss or weak connections. Workshop duct fabrication ensures system strength and high efficiency.
Al Owaija sits in the north-east of Jeddah, a growing industrial zone with large factories and workshops.
Most factories and industrial warehouses in Al Owaija use powerful central chilling units with large ductwork systems with wide sections.
The AC setup in Al Owaija
- 1
Large-section ductwork for big factories
Large factories need very wide duct sections to distribute huge volumes of air, which we fabricate from the workshop with high strength and robust connections.
- 2
Strong distribution branches for industrial warehouses
Industrial warehouses need a strong distribution system with multiple branches, which we fabricate with robust metal connections that withstand pressure and heat.
- 3
Strongly sealed duct against air leakage
Workshop fabrication achieves very strong sealing at every joint, essential for factories to achieve maximum energy efficiency.
Before the visit
Before our visit in Al Owaija
- 1
Obtain complete factory and warehouse layout
Ensure a complete layout showing spaces, heights and planned duct routes is available before fabrication begins.
- 2
Specify chilling unit locations and outlet points
Communicate the locations of central chilling units and planned outlet points in each factory section.
- 3
Confirm site capacity for heavy ductwork
Confirm factory entrances and doors are large enough for big duct pieces, or let us know if the duct needs splitting and reassembling on site.
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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.
Does your duct fabrication suit factories and industrial facilities?
Yes, we fabricate robust industrial duct systems with large sections and strong metal connections able to withstand high temperatures and high air pressure.
Can the intense heat in factories affect ductwork?
Galvanised steel withstands very high temperatures with complete stability, and our fabrication ensures duct connections do not warp or weaken even under high air pressure.
Does large, heavy ductwork need strong support during installation?
Yes, industrial duct with large sections needs strong engineering support, and we advise installing robust metal supports with correct spacing between anchor points.
How do you ensure zero air loss in large factory systems?
Every joint and every branch is sealed precisely in the workshop before delivery, and we inspect all seals to achieve very high efficiency in air distribution.
