Dedicated duct workshop
Duct fabrication in Al Aziziyah
In Al Aziziyah, central Jeddah, workshop duct fabrication precedes installation, so your central run arrives with calculated dimensions and exact fittings ready to hang. We cut and join galvanised or aluminium sheet to your site measures and drawings.
- 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.
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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.

Split AC installation
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Duct installation
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Central AC installation
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Duct fabrication
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Cold room installation
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Electro-mechanical works
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Chiller & AHU installation
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HVAC design
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AC repair & faults
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AC cleaning
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Refrigerant charging
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Central AC maintenance
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Chiller maintenance
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AC removal & refitting
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Duct cleaning & sanitising
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AC servicing by brand
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Operation & maintenance contracts
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AHU maintenance
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Fridge & freezer service
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Cold rooms
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Display fridges & chillers
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Factory HVAC
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Warehouse HVAC
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Villa & home HVAC
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Hotel HVAC
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School HVAC
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Hospital HVAC
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Mosque HVAC
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Mall & retail HVAC
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Restaurant & cafe HVAC
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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 Aziziyah is a mixed neighbourhood with modern villas, multi-storey residential blocks and some commercial compounds, with wider spaces between buildings. Many new projects here build central AC from the start, and pre-fabricated duct cut to exact dimensions saves on-site time and ensures outlets and take-offs fit without waste.
Al Aziziyah in central Jeddah mixes modern villas and residential blocks with reasonable spacing between them.
Central runs here usually pass through solid bases and standardised ceiling voids, allowing uniform duct installation without major adjustments.
The AC setup in Al Aziziyah
- 1
Main rectangular duct with round branches
Runs here start with a main rectangular trunk through the central ceiling, with round branches to each room or unit to cut noise and resistance.
- 2
Fabricated duct with thermal insulation
In areas exposed to direct sun or unprotected ceiling voids, we add external insulation during fabrication or installation.
- 3
Custom transitions for corners and openings
Each complex corner needs a custom bend or transition fabricated in advance to ensure tight fit without extra field work.
Before the visit
Before our visit in Al Aziziyah
- 1
Send the architect's plan or ceiling void measurements
Before fabrication starts, send us the precise architect's plan or measurements of ceiling voids and horizontal passages on each floor.
- 2
Mark existing pipe and wire routes
Tell us where water, gas and electrical lines run in the ceiling voids so we route the duct to avoid any crossings.
- 3
Confirm all openings and entry points are ready
Check that all entry, exit and distribution openings in the ceiling or walls are drilled or marked and ready before installation begins.
More districts for Duct fabrication
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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 want central AC in our new villa, where do we start with the duct?
Send us the architect's drawing or measurements of ceiling voids and corridors. We fabricate the duct to match the drawing exactly, so it arrives on site ready to hang immediately.
Al Aziziyah has large apartment projects, do you make duct for multiple units in one building?
Yes, we fabricate duct for multiple units in one building if you have a unified drawing showing each unit and its location. We cut the transitions to fit each unit's position, speeding up parallel installation.
Heat in Al Aziziyah is high, does the duct need insulation?
In ceiling voids exposed to direct heat, we recommend external insulation on the duct to reduce cooling loss. Insulation can be added during fabrication or after installation as needed.
Does fabricated duct fit with electrical and plumbing systems in modern buildings?
We measure the actual ceiling voids and account for existing electrical and water routes. We fabricate the duct to pass safely around these systems without conflict or costly rerouting.












































































