Desert cooler, proper duct
Evaporative (desert) duct installation in Prince Fawaz North
In Prince Fawaz North, south Jeddah, evaporative duct installation suits large villas and family warehouses with broad floor plans and high ceilings. We carefully open and seal the roof against rain and dust, run galvanised duct across the space, and the survey confirms whether evaporative cooling fits your home.
- 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.
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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
Prince Fawaz North is a densely packed residential area of large villas and modern apartment blocks, alongside family warehouses and small workshops. Demand for energy-saving cooling in large villas is rising, and evaporative duct cooling significantly cuts the electrical load, but fitting it to the villa's design, roof integrity and the close spacing between buildings requires a detailed pre-install survey.
Prince Fawaz North lies in south Jeddah, a district of large villas and modern apartment blocks built closely together.
Large villas here typically need 450 mm or larger duct to cover living rooms, bedrooms and multiple open spaces.
The AC setup in Prince Fawaz North
- 1
Evaporative duct for large open areas
Large halls and reception rooms in villas need 450, 550 mm duct for effective cooling.
- 2
Dual duct runs for multi-storey coverage
Multi-storey villas may need separate duct branches for balanced cooling of lower and upper floors.
- 3
High-density insulation for exposed roofs
Sun-exposed villa roofs need extra duct insulation to maintain cool air during distribution.
Before the visit
Before our visit in Prince Fawaz North
- 1
Confirm roof and structural integrity
Inspect the roof to confirm it is free from moisture and cracks, and tell us of any issues before the visit.
- 2
Identify overhead wiring and piping routes
Tell us where electrical wires and pipes (water, gas) run in the ceiling so we avoid them.
- 3
Agree exhaust locations with neighbours
Talk to neighbours before the visit about proposed exhaust opening locations to ensure agreement and avoid disputes.
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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.
Is evaporative cooling suitable for my large villa?
Evaporative cooling suits spacious villas with high ceilings and open floor plans. Our survey checks the villa's design and roof condition to see whether it is the best choice compared to central AC.
Villas here are very close together, will exhaust openings trouble neighbours?
We carefully choose exhaust opening locations to avoid directing warm air toward neighbouring windows and balconies.
My villa has concrete and steel roof, is drilling safe?
We inspect the roof before drilling to confirm no cables or pipes run inside the concrete, and the survey identifies safe drilling points.
How do I integrate evaporative duct with my existing central AC?
Evaporative duct can be installed in certain villa zones (such as the main hall) while central AC serves the bedrooms. The survey identifies the optimal cooling distribution plan.
