Desert cooler, proper duct
Evaporative (desert) duct installation in Al Furqan
In Al Furqan, north Jeddah, evaporative duct installation suits the spacious villas and homes seeking efficient, energy-saving cooling. We mount the cooler on the roof and run galvanised duct throughout the house with exhaust openings for air release.
- 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.
Ask on WhatsApp
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
Request this serviceDuct installation
Request this serviceCentral AC installation
Request this serviceDuct fabrication
Request this serviceCold room installation
Request this serviceElectro-mechanical works
Request this serviceChiller & AHU installation
Request this serviceHVAC design
Request this serviceAC repair & faults
Request this serviceAC cleaning
Request this serviceRefrigerant charging
Request this serviceCentral AC maintenance
Request this serviceChiller maintenance
Request this serviceAC removal & refitting
Request this serviceDuct cleaning & sanitising
Request this serviceAC servicing by brand
Request this serviceOperation & maintenance contracts
Request this serviceAHU maintenance
Request this serviceFridge & freezer service
Request this serviceCold rooms
Request this serviceDisplay fridges & chillers
Request this serviceFactory HVAC
Request this serviceWarehouse HVAC
Request this serviceVilla & home HVAC
Request this serviceHotel HVAC
Request this serviceSchool HVAC
Request this serviceHospital HVAC
Request this serviceMosque HVAC
Request this serviceMall & retail HVAC
Request this serviceRestaurant & cafe HVAC
Request this service
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 Furqan features modern villas with secure roofs and large floor areas, making installation simpler than in older districts. Most homes here have high ceilings and long hallways, which allows effective distribution of cool air through the duct run. Evaporative cooling performs better in relatively dry zones, and Al Furqan offers those conditions with reasonable distance from the sea. The design relies on an accurate site survey to size both the duct and the cooler unit to match the villa's area.
Al Furqan lies north of Jeddah, comprising modern villas and spacious apartment blocks with open roofs.
Most Al Furqan villas feature wide roofs and open-plan living areas, making it straightforward to run galvanised duct through the home's structural frame.
The AC setup in Al Furqan
- 1
Roof-mounted cooler with central duct run
Modern Al Furqan villas provide secure roofs and open spaces that allow uniform cool-air distribution through the home's floors.
- 2
Exhaust openings distributed through rooms
We locate exhaust openings in living and bedroom areas according to the villa's layout, ensuring efficient cool-air circulation.
- 3
Galvanised duct in varied diameters
We select duct diameter based on each zone's size and distance from the cooler, balancing pressure and airflow.
Before the visit
Before our visit in Al Furqan
- 1
Confirm safe roof access
Let us know if the roof needs additional ladders or safe anchor points before the visit.
- 2
Decide where the cooler should go
The cooler's location on the roof affects distribution efficiency. Choose an open spot away from trees and obstacles.
- 3
Clear interior pathways for duct routing
Ensure hallways and ceiling spaces are clear of furniture and obstacles to make running the galvanised duct through the home straightforward.
More districts for Evaporative (desert) duct installation
Other services in Al Furqan
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.
Will evaporative duct cooling work in my Al Furqan villa?
That depends on the villa's location, relative humidity and intended use. A site visit by our team confirms whether evaporative duct cooling suits your space and climate conditions.
How do you get equipment onto my villa roof safely?
We agree in advance on roof access from inside the villa or via an external pathway, and we ensure the roof and surroundings stay safe during installation whilst sealing against rain and dust.
Summer heat in Al Furqan is intense; will one cooler unit cool the whole villa?
The cooler's capacity depends on the villa's size and room count. The site survey determines whether you need one unit or two, and sizes the duct to ensure even distribution of cool air.
Will my roof need modifications before installation?
We open the roof around the cooler's mounting point, then reseal and slope it carefully to prevent water and dust leaks. We inspect the roof condition during the first visit.
