Professional duct routing
Duct installation in Al Balad
In Al Balad's cramped downtown buildings, duct installation requires careful planning because the old residential and commercial blocks have tight ceilings crammed with water and power lines. Alrabih's team maps the route beforehand, seals every joint with Foster sealant and insulates with Armaflex to ensure even airflow to every room.
- Sealed joints
- Proper insulation
- Balanced branches
Clients We're Proud to Serve
Organisations and companies that trusted Alrabih with their projects.
When you need a specialist duct installer
- 1
Rooms that cool unevenly
One room freezing, another barely cool, even though they share the same system. The cause is usually a wrong branch takeoff or an unbalanced diffuser. We inspect the existing route and fix the fault at its real source, not at the thermostat.
- 2
Adding a room or a new wing
You have added a room or extended office space and need to connect it to the existing duct network. We inspect the current network to confirm it can carry the extension, then connect the new branch in a way that does not reduce airflow to the other rooms.
- 3
Air leaking above the false ceiling
You can hear air above the suspended ceiling, or some diffusers have grown weak since a previous maintenance visit. Unsealed joints waste cold air in the ceiling void before it reaches the rooms. Sealing them with Foster sealants solves the problem at its source.
Who it's for
Fitting out a new office that needs duct runs
We survey the ceiling voids before they are closed and route duct runs with correct hangers and branch takeoffs.
Ask on WhatsAppSome rooms barely cool and you suspect the duct
We inspect the duct route and fix wrong branch takeoffs and open joints at their exact location.
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What the work covers
- Duct routed above false ceiling
- Hangers and supports fitted
- Branch takeoffs and diffusers connected
- Joints sealed with Foster
- Duct insulated with Armaflex
How we work
How we work
- 1
Site survey
We inspect the ceiling void, plan a route clear of electrical and plumbing conflicts, and measure the actual dimensions of every section of the network.
- 2
Hang and route the duct
We fix hangers at correct spacing to prevent sag, then mount duct sections, connect branch takeoffs, and fit diffusers and grilles in the positions agreed at the survey.
- 3
Seal and insulate
We seal every joint with Foster sealants to stop air leakage, then insulate the duct with Armaflex or Kimmco to prevent condensation in Jeddah's humid air and keep the air cold along its full run.
- 4
Check and hand over
We run the system and confirm that air comes from every diffuser, then address any diffuser that seems weak before the false ceiling is closed and the site is handed over.
Planned routing or quick routing?
| Alrabih | The usual way | |
|---|---|---|
| Joints | Sealed with Foster sealants | Tape that fails in heat |
| Insulation | Full Armaflex or Kimmco | Patchy or missing |
| Hangers | Correct spacing, no sag | Too few, duct sags |
| Branch takeoffs | Positioned to balance airflow | Wherever space allows |
| Duct route | Planned at survey | Decided on site |
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 Balad's old buildings have low false ceilings and tight gaps between beams, so duct installation needs precise planning to avoid existing water and power pipes. Most shops and flats here were not designed for a central system, so we adapt the run to fit the available space and seal every joint carefully because any leak leaves a room without cooling. Coordinating with the building management or shop owner is essential since fitting takes time and may disrupt business or occupancy temporarily.
Al Balad is in the heart of historic Jeddah, a dense district of old buildings used heavily for both residential and retail around the popular souks and old market.
Most duct work here converts existing split units into a central system for a flat or shop, rather than a new build installation.
The AC setup in Al Balad
- 1
Converting split units to a central system
Most customers here convert existing split units to a central ducted system to cover a whole flat or shop without multiple outdoor units.
- 2
Tight routes between false and original ceiling
The gap between the false ceiling and the structural slab is very tight, so we choose duct diameter carefully and adapt the route to fit.
- 3
Individual branches to small rooms
Flats and shops here are often small with many rooms, so we design separate branches to each room with dampers to control flow.
Before the visit
Before our visit in Al Balad
- 1
Survey existing spaces and pipes
Before the visit, ensure the building manager or shop owner can safely access the false ceiling for route assessment.
- 2
Coordinate timing with business or occupancy
Fitting may take several hours or spread over days, so agree with us on visit times that do not disrupt shop hours or flat occupancy.
- 3
Prepare safe access to the ceiling and outdoor unit
Ensure the team can safely reach the false ceiling and the planned outdoor unit location before fitting begins.
More districts for Duct installation
Other services in Al Balad
FAQ
Questions about Duct installation
How do you know the existing network can carry an extension?
Before any extension the technician checks the main duct dimensions and existing branch takeoffs, and measures air velocity at the current diffusers. If velocity is already low or the main run is narrow, he explains what must be corrected first. The site survey determines whether the extension is feasible on the existing network or whether the supply section needs to be enlarged.
Why does moisture form on the duct above the false ceiling?
Warm humid air trapped above the false ceiling meets the cold duct surface and moisture condenses on the outside of the duct wall. The most common cause is torn insulation or open joints that let warm air reach the bare metal. Armaflex or Kimmco insulation is fitted around the full perimeter and every joint is sealed with Foster sealants so no path remains for outside air to reach the duct surface.
Can you re-hang sagging duct without replacing the whole network?
Usually yes. The technician first identifies the cause of the sag: a failed hanger, a loose anchor point in the ceiling structure, or deformation of the duct itself. If the duct is undamaged, hangers are repositioned and spaced to prevent the sag from recurring. If the duct is deformed or the insulation has failed, the technician explains what needs replacing before re-hanging proceeds.
When is a damper needed at a branch takeoff?
A damper is fitted at a branch takeoff when the cooling load differs between zones connected to the same main duct run, for example a room with a large window compared with an interior corridor. Without a damper the path of least resistance takes most of the air and the other rooms receive less. The site survey identifies which branch points require a damper and which can be balanced by adjusting the takeoff size alone.
Can duct runs be extended after the false ceiling is closed?
It is usually possible by opening access panels or cutting limited sections in the false ceiling to reach the void above. The technician maps the route before starting to keep the number of openings to a minimum. Once the duct run, insulation and sealing are complete, panels are refitted or the cut sections are restored. The complexity and number of openings depend on the false ceiling type and any obstructions present, which the site survey establishes.
Our building is very old, can duct work really fit it?
Yes, we adapt the route to fit the existing gaps between beams and pipes. A site visit confirms whether fitting is possible and identifies the best path.
The street is too narrow to bring in materials, how do you manage that?
We bring materials and equipment in stages and store them on site, and coordinate with you beforehand about the best delivery and access point.
Does Al Balad's high humidity affect the duct insulation?
Yes, the coastal humidity demands thick Armaflex insulation to prevent condensation on the duct surface and ensure long-term performance.
The building's wiring is weak and water pipes are tangled, does that complicate fitting?
That requires extra planning. We survey the existing pipes and connections before fitting to avoid any conflicts.












































































