Precision-made ductwork
AC duct manufacturing in Thuwal
In Thuwal, at Jeddah's far north where residential and hotel projects sprawl across open land, central AC requires long ductwork with precise sections. We manufacture supply, return and plenum trunks in our workshop to your project dimensions, seal every joint with Foster sealant, fully insulate, and deliver numbered sections ready to hang.
- 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
Thuwal is expanding rapidly with new residential and hospitality projects, and the buildings here are relatively modern on open plots, making central AC ducting feasible and efficient. Ductwork cut on site with a knife leaves gaps that bleed cold air and creates moisture hotspots in Jeddah's humid heat, whereas factory-made ducts ensure perfect fit and airtight insulation. The large projects here need precise coordination between workshop and site to deliver sections in the right sequence.
Thuwal sits at Jeddah's far north, known for new residential and hotel projects on open land.
Most central systems in Thuwal need ducts insulated to at least 50 mm gauge to maintain temperature difference over long runs.
The AC setup in Thuwal
- 1
Insulated central ducts for large systems
Thuwal's expansive projects require long, fully insulated ducts for even distribution and high efficiency across the entire building.
- 2
Plenums and distribution chambers
Large hotel and residential projects need insulated plenums to collect air from the central unit before routing it to branch runs.
- 3
Numbered sections with identification labels
Each section is manufactured and numbered in the workshop to match exactly with site drawings during installation.
Before the visit
Before our visit in Thuwal
- 1
Send complete project drawings
We need accurate drawings showing duct routes, dimensions and heights to ensure perfect fit in the workshop.
- 2
Confirm delivery date and quantities
Discuss total quantities and first delivery date with the project team so we can schedule workshop production.
- 3
Reserve temporary storage space on site
Manufactured ducts need a dry, sheltered storage area until installation, especially in Thuwal's moist climate.
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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.
Can you manufacture ductwork for a large hotel project in Thuwal?
Yes, we manufacture large duct volumes to your project drawings, numbering each section so it fits together on site without delay.
Long runs from the central unit to rooms lose temperature, how do you solve that?
Full insulation at the right thickness preserves temperature throughout the run, and factory-made ducts eliminate the air leaks that cut on site would cause.
Thuwal's intense heat and moisture from the north, do they damage ductwork?
Full insulation and Foster sealing on every joint prevents moisture buildup inside the ducts and protects against corrosion over time.
Workshop access and on-site delivery for large projects, how is this coordinated?
We confirm the manufacturing and delivery schedule with the project manager in advance, ensuring each section arrives when needed.
