Desert cooler, proper duct
Evaporative (desert) duct installation in Al Kandarah
In Al Kandarah, central Jeddah, evaporative duct installation suits modern villas and homes with wide roofs. We mount the cooler on the roof, run galvanised duct to rooms and halls, and fit distributed exhaust openings for efficient air renewal.
- Sealed roof
- Galvanised duct
- Air changes
Clients We're Proud to Serve
Organisations and companies that trusted Alrabih with their projects.
When you need evaporative cooler duct
- 1
A large workshop or warehouse
Large industrial spaces get very hot in Jeddah summers and split units are expensive to run there. An evaporative cooler with distribution duct brings air to work areas at lower running cost, provided the space is ventilated and not sealed shut.
- 2
A majlis tent or seasonal space
Outdoor majlis areas and seasonal tents do not suit split AC units because of the structure. Evaporative duct delivers a cool air stream as long as the space is open enough for air changes, which the survey confirms.
- 3
Old duct with poor airflow
Old sheet duct cracks over time and air leaks from the joints before reaching the space. On site we check whether the problem is leaking duct, poor distribution, or the cooler size itself.
Who it's for
Need to cool a large workshop at reasonable running cost
We survey the workshop and check its ventilation, then run galvanised duct from the roof cooler to the work areas with exhaust openings that keep air moving through the space.
Ask on WhatsAppYou have an outdoor majlis that needs seasonal cooling
We check how open the majlis is and assess its structure, then design the duct route and exhaust openings so cool air reaches the seating area without humid air building up inside.
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What the work covers
- Weatherproof roof collar fitted
- G90 galvanised duct runs
- Branch and air outlet connections
- Exhaust openings for air changes
- Airflow check after start-up
How we work
How we work
- 1
Site survey first
We visit, measure the space and check how open it is, because evaporative cooling needs enough ventilation; without it humidity rises inside and the cooling effect drops.
- 2
Plan the duct route
We plan the main duct run, branches, air outlet positions and exhaust opening locations, and show you the layout before any work starts.
- 3
Install duct and seal roof
We open the roof, fit and seal the collar against leaks, then run the galvanised duct and hang it on proper supports so it does not sag.
- 4
Start-up and test
We run the evaporative cooler and check that air reaches every outlet and that the exhaust openings are working so fresh air is visibly moving through the space.
Planned duct or a quick run?
| Alrabih | The usual way | |
|---|---|---|
| Roof seal | Weatherproof, sealed collar | Silicone that cracks in heat |
| Sheet | G90 galvanised | Unspecified gauge |
| Exhaust | Sized openings for air changes | Left to chance |
| Space suitability | Confirmed by survey | Not checked |
| Duct supports | Fixed hangers along the full run | Duct left unsupported |
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.
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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 Kandarah is a relatively modern residential neighbourhood with large contemporary villas featuring wide roofs and clear architectural lines. Internal spaces here are open and spacious, and roofs are typically clear and easy to access, making cooler and duct installation professional and straightforward. Evaporative cooling operates efficiently in modern homes because the architectural design allows air to distribute regularly and smoothly.
Al Kandarah lies in central Jeddah, a modern residential neighbourhood of large villas with wide roofs and contemporary architectural designs.
Most villas in Al Kandarah have generous roof areas and open internal layouts, making them suitable for moderate to large evaporative duct systems.
The AC setup in Al Kandarah
- 1
Modern roof-mounted cooler for large villa
Modern villas in Al Kandarah can accommodate an efficient evaporative cooler serving most rooms and halls through a unified duct network.
- 2
Professionally designed galvanised duct run
Duct is designed to match the villa's modern interior layout, with evenly distributed openings in each room.
- 3
Roof weatherproofing against heat and dust
After installation we seal the area around the duct with insulating materials to protect the building from extra heat and fine dust infiltration.
Before the visit
Before our visit in Al Kandarah
- 1
Agree on the cooler location on the roof
Choose with the team the best roof position for the cooler that preserves the villa's appearance and allows easy future maintenance.
- 2
Verify roof and access safety
Verify that the roof and access paths are safe for team movement and equipment before the visit day.
- 3
Coordinate visit timing with household
Inform household members of the visit date and scope so they are prepared and can facilitate roof and interior room access.
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FAQ
Questions about Evaporative (desert) duct installation
Does evaporative cooling work in Jeddah in summer?
Evaporative cooling relies on water evaporation and weakens when humidity is high. In Jeddah, humidity is higher near the coast and lower inland. The survey decides whether the space and the season are suitable, which is why we do not start before visiting the site.
Why do exhaust openings matter as much as the duct runs?
An evaporative cooler pushes fresh air in continuously. Without an exit path, humid air builds up inside and the felt temperature rises. Properly sized exhaust openings keep air moving through, not piling up, and that is the core of how this type of cooling works.
What sheet do you use for the duct?
We use G90 galvanised steel sheet, which resists rust in Jeddah's humid and salty air. The duct sections are formed in our workshop before being taken to site, then hung on supports along the run to stop them sagging.
Can one cooler supply duct to more than one area?
Duct can be branched from one unit to more than one outlet, but each branch reduces the airflow at every opening. The survey decides whether the cooler has enough output for the total area, or whether a separate unit for each wing is the better answer.
Can evaporative cooler duct run through a false ceiling?
Evaporative cooling depends on continuous air movement and exchange, which requires exhaust openings in the same space the duct serves. A false ceiling restricts that flow unless dedicated openings lead air out of the building. The site survey decides whether the structure allows it, because the duct run and the exhaust are designed together as one system, not separately.
Our modern villa has contemporary design, does evaporative duct fit the aesthetic?
Yes, galvanised duct can be mounted on the roof professionally without affecting the villa's overall appearance. We survey the site to ensure full compatibility.
Our roof is wide but has old central AC units, can you install the new cooler?
Yes, we can position the new cooler in a separate area away from old equipment, or you can have the old units removed if you prefer.
Heat and dust in Al Kandarah are high, is evaporative cooling sufficient?
It depends on space size and building occupancy patterns. The site survey will show if evaporative cooling alone is adequate or if you need supplementary cooling.
How do you secure the roof after opening and installation?
We open the roof carefully and mount the cooler on a quality-insulated base, then seal all openings and edges around the duct to prevent water and dust leakage.
