Dedicated duct workshop

Duct fabrication in Al Bayan

In Al Bayan, east Jeddah, where modern villas and spacious apartment blocks spread across wide plots, central AC requires a complex duct network linking the unit to multiple rooms. We fabricate duct in our workshop from galvanized or aluminium sheet to fit each building's design precisely, with no air loss at the joints.

  • G90 sheet
  • Site dimensions
  • Complex fittings

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

Who needs workshop-fabricated duct?

  1. 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. 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. 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 WhatsApp
  • Renovating 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
Request a quote

How we work

How we work

  1. 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. 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. 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. 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?

AlrabihThe usual way
Dimensional accuracyWorkshop machines, tight dimsHand variation on site
Complex fittingsCorrect elbows and transitionsDistorted, leaking air
Seam qualityTight lock, low leakageGaps weaken pressure
Site scheduleArrives ready to hangExtra time and site noise
Salt and humidityAluminium where site demandsOne sheet regardless

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.

Worked with us? Leave a review

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

Most Al Bayan buildings are new with spacious interiors and high ceilings, allowing a branching duct system across multiple floors and wings. These complex networks need pre-fabrication in the workshop to ensure precise fit between diameters, transitions and elbows, rather than random site cutting that causes air leaks and cooling loss. When we fabricate from site measurements or drawings, the duct arrives ready to hang with no dimensional loss.

Al Bayan lies in east Jeddah, a district of modern villas and spacious residential blocks spread across wide plots.

Most new villas and blocks here choose central AC over multiple splits, since the ceiling height and open floor plans support a well-designed duct layout.

The AC setup in Al Bayan

  1. 1

    Central branching duct across multiple floors

    New villas and blocks in Al Bayan need duct linking one cooling unit to multiple rooms across different floors, with complex elbows and transitions.

  2. 2

    Galvanized or aluminium sheet by design choice

    We choose the sheet type based on the building design and environment, with galvanized lasting longer in humid and salty air.

  3. 3

    Precise joints with no air loss

    Workshop-fabricated duct arrives with matching openings and tight joints, so no air escapes between sections.

Before the visit

Before our visit in Al Bayan

  1. 1

    Bring the engineering drawing or floor plan

    Send us the engineering drawing or villa floor plan before the visit so we can measure the spaces and diameters precisely.

  2. 2

    Mark the outdoor unit location and duct paths

    Tell us where the outdoor unit will be mounted and where the duct will run through walls and ceilings in the villa.

  3. 3

    Ensure duct delivery access to the villa

    Check that the villa's gate and interior doors can fit the fabricated duct sections, or that we have a clear passage for delivery and installation.

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 fabricate duct for new villas in Al Bayan?

Yes, we fabricate rectangular and round duct for new villas and blocks in Al Bayan, from engineering drawings or direct site measurements.

My villa needs duct across several floors with complex branches, can you match sections precisely?

Yes, we measure each section on site and fabricate it in the workshop so that diameters and openings match precisely, and the duct arrives ready to install with no gaps.

My villa's high ceilings need many elbows and transitions, can you handle the complexity?

Yes, we fabricate elbows, transitions and offsets at any angle from galvanized or aluminium sheet to match the design, with each piece numbered and ready to install.

The gaps and passages between floors vary, will the duct fit the available space?

We measure the available space on each floor and section, and design the duct to fit precisely so it does not clash with other works and flows efficiently.

The Jeddah corniche in cool weather

Send your drawings or measure the site with us

WhatsApp us your duct drawings or site photos and we will arrange measurement and fabrication, Saturday to Thursday, anywhere in Jeddah.

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