Precision-made ductwork
AC duct manufacturing in Umm Sidrah
In Umm Sidrah, east Jeddah, where modern residential investment projects have expanded rapidly, duct manufacturing is critical for connecting central units to multiple flats and studios. We fabricate distribution ducts in our workshop to precise dimensions, seal and insulate every joint, and deliver them numbered for organised assembly.
- Sealed seams
- Full insulation
- Delivered ready
Clients We're Proud to Serve
Organisations and companies that trusted Alrabih with their projects.
When duct quality makes the difference
- 1
Duct losing cold air
An open seam or an unsealed joint loses cold air before it reaches the room. We close every seam with Foster sealant in the workshop before shipping, so the seal does not depend on site work alone.
- 2
Condensation wetting the ceiling
In Jeddah's humid air any bare metal surface sweats and drips onto the ceiling or damages the unit insulation. We wrap with Kimmco or Armaflex at the thickness the site calls for.
- 3
A project with many duct runs
A villa or commercial building needs main trunks, branches and plenums in several sizes. We make sections in the workshop numbered to the site plan, so the hanging crew assembles without cutting or adjusting.
Who it's for
Replacing your villa's AC and need new ductwork
We make supply and return trunks and plenums to your villa's dimensions, insulated and numbered, ready for the hanging crew without any on-site cutting.
Ask on WhatsAppRunning a commercial fit-out that needs duct runs
We take your project drawings and produce numbered sections in batches matched to your site schedule, so the hanging crew is never waiting on supply.
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What the manufacturing covers
- Supply and return trunks
- Unit plenums to opening size
- Seams sealed with Foster
- Kimmco or Armaflex outer wrap
- Numbered sections ready to hang
How we work
How we work
- 1
Send sizes or drawings
Send us the duct drawing or a list of section sizes. If sizes are not fixed yet, we agree a site survey before production starts.
- 2
Review sizes and sheet gauge
We check each section's dimensions and pick the right sheet thickness for the duct size, then confirm quantities with you before cutting begins.
- 3
Fabricate, seal and insulate
We cut and fold the G90 galvanised sheet, lock the seams with Foster sealant, and wrap each section with Kimmco or Armaflex insulation in the workshop before shipment.
- 4
Number and deliver
We mark each section with its position and dimension from the site plan, so the hanging team identifies every piece without confusion and starts work on arrival.
Workshop-made or site-cut duct?
| Alrabih | The usual way | |
|---|---|---|
| Sealing | Foster on every seam in workshop | Uneven site sealing |
| Insulation | Kimmco or Armaflex fully wrapped | Partial or delayed wrap |
| Sheet gauge | Chosen for each duct size | One gauge for everything |
| Assembly time | Numbered, assembled straight away | Cut and adjust on site |
| Joint fit | Workshop dimensions close every joint | Hand trimming breaks the seal |
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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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
Umm Sidrah's rapidly growing projects house many flats and studios, with each central unit serving multiple units through complex numbered ducts. Field-cutting in these dense projects causes major cool-air loss and unbalanced air distribution across flats. Full workshop fabrication ensures even distribution and consistent insulation, reducing complaints about poor cooling in some units.
Umm Sidrah is in north-east Jeddah, a district of dense modern residential investment projects with many flats and studios.
Most projects here have dozens of units served by one or two central units, requiring complex, tightly sealed distribution ducts.
The AC setup in Umm Sidrah
- 1
Multi-branch main distribution ducts
Dense projects need long main ducts with many branches, each feeding a precisely calculated flat group.
- 2
Distributed outlets with damper dampers
We fabricate different-sized outlets for each flat or studio, with dampers to balance cool air as needed.
- 3
Highly sealed insulated ducts
Dense projects need top sealing and insulation standards to minimise leakage between closely spaced flats.
Before the visit
Before our visit in Umm Sidrah
- 1
Have the full project plan with flat numbering
Send the full project blueprint with each flat and studio numbered and located before we calculate.
- 2
Pinpoint central unit location and ceiling/attic
Specify central unit location and length and height of attic or ceiling runs, essential for duct layout.
- 3
Tell us the flat and studio count
Specify the total number of flats and studios and how they are distributed across floors or sections for precise duct calculation.
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FAQ
Questions about AC duct manufacturing
How do you make sure the duct does not leak air at the seams?
We close the long seams with a tight mechanical lock as the sheet is formed, then seal every seam and every joint between sections with Foster sealant before insulating. Sections leave the workshop with matching flanges that tighten evenly when hung, because any small gap in cold duct means lost air and a point where condensation forms.
Does the duct arrive ready to hang, or is it assembled on site?
Sections arrive fabricated, insulated, sealed and numbered to the route drawing, so the fitters know where each piece goes without cutting or altering on site. What is left on site is joining the sections, fixing them to the hangers and connecting the unit and outlets, which shortens the work above the ceiling.
Do you make plenums for cassette and cabinet units?
Yes, we fabricate plenums for both types. A cassette unit plenum is measured to match the unit's outlet frame exactly so air reaches the branch runs without leaking at the connection. A cabinet unit plenum is made to carry both the supply and return paths if the design calls for it. Both types are insulated with Kimmco or Armaflex and sealed with Foster sealant before they leave the workshop.
Can you manufacture duct for a large commercial project?
Yes. The workshop is equipped to fabricate large supply and return trunk runs suited to commercial, government and industrial buildings. Each section is made to the project drawings, numbered and delivered ready to hang after insulation and sealing. When engineering drawings are available, the technical team reviews them before fabrication starts to confirm that the duct dimensions fit the ceiling voids on site.
Why are the duct sections insulated in the workshop before delivery?
The duct carries cold air through a ceiling void that may be hot and humid. Without external insulation, water vapour condenses on the cold sheet and drips onto the false ceiling or the goods below. So each section is wrapped in Kimmco or Armaflex in our workshop and every edge and joint is sealed with Foster sealant before delivery.
Our project has 40 flats and one central unit, how do you make balanced distribution ducts for that many units?
We fabricate main distribution ducts then branches for each flat group, with outlets and diameters calculated to balance cool air across all units.
The studios are very small, can you make appropriately sized outlets for them?
Yes, we fabricate smaller outlets sized for each studio, allowing efficient cooling without waste in tight spaces.
Some residents complain of poor cooling in their units, could unbalanced ducts be the cause?
Yes, field-cut or poorly sealed ducts cause cold-air loss and imbalance. Workshop-made and properly sealed ducts distribute air evenly.
How many sections and outlets does a 40-flat project need?
It depends on the flat layout and central unit location; send the project blueprint and we'll calculate the exact section and outlet count.
