Dedicated duct workshop
Duct fabrication in Al Ma'rifah
In Al Ma'rifah, north Jeddah, real estate developments and residential complexes use complex central AC systems needing precisely fabricated duct. We make rectangular and round duct with all bends and fittings in our workshop from galvanized or aluminium sheet.
- 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 Ma'rifah is experiencing rapid development with large residential projects, luxury villas and commercial complexes, all needing extensive AC systems and long duct networks running through building and villa ceilings. On-site cutting cannot match the precision and complexity these large projects demand, so workshop fabrication ensures strict standards and perfect fit between all parts.
Al Ma'rifah lies in north Jeddah and is undergoing rapid development with large residential projects, villas and extensive central AC systems.
Most new projects in Al Ma'rifah use complex multi-branch ductwork linking several indoor and outdoor units in the same system.
The AC setup in Al Ma'rifah
- 1
Unified central ductwork for large projects
Large residential projects in Al Ma'rifah need a single unified duct network serving multiple buildings from one or more outdoor units.
- 2
Branching duct for luxury multi-storey villas
Luxury villas in Al Ma'rifah are often large and multi-storey, needing complex duct with multiple branches and transitions to cover all wings and rooms.
- 3
High-performance round duct for large systems
Large systems in commercial complexes and hotels in Al Ma'rifah use round duct for higher efficiency and better airflow.
Before the visit
Before our visit in Al Ma'rifah
- 1
Gather the complete engineering drawings
Before the visit, make sure you have the complete engineering drawings including ceilings and planned duct routes.
- 2
Coordinate with the project team on timelines and phases
Agree with the project manager on when duct needs to be ready and which phases will have duct installation on site.
- 3
Identify storage and site access
Designate a storage area for the fabricated duct and ensure safe access for long duct runs from storage to the site through project gates.
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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.
Do you work with contractors on large projects in Al Ma'rifah?
Yes, we work with project teams and contractors on duct specifications and production schedules. We take engineering drawings and fabricate duct to match the installation timeline.
Al Ma'rifah projects are large with hundreds of metres of sectioned duct, how do you ensure all parts fit together?
We fabricate all duct sections from unified drawings and apply strict standard dimensions to sizes, angles and joints to ensure perfect fit during installation.
Does the coastal humidity and heat in Al Ma'rifah affect duct durability?
Galvanized duct has a protective coating that resists moisture and rust. Aluminium is also a strong choice in coastal areas because it does not oxidise.
Can you fabricate flexible duct alongside rigid duct in the same project?
We fabricate rigid rectangular and round duct in the workshop. Flexible duct is usually installed as a finish stage on site, but we coordinate with you to align both types.
