Warehouse Cooling
Warehouse HVAC in Al Mahjar
Warehouse HVAC in Al Mahjar, south Jeddah, faces intense heat from high metal roofs and temperature-sensitive stock. We design zoned cooling systems matched to each area's use to protect goods and keep workers comfortable.
- Zone control
- Stock protection
- Directed ventilation
Clients We're Proud to Serve
Organisations and companies that trusted Alrabih with their projects.
When your warehouse needs a proper HVAC system
- 1
Heat that damages stored stock
Food, pharmaceutical and electronics stock all have storage temperature limits. When a metal warehouse roof bakes under Jeddah's sun, the air inside becomes a direct threat to shelf life and product quality. The solution starts with a survey of the racking layout to find the critical zones.
- 2
Workers overheating in the picking area
Workers in the picking and loading area move constantly under a hot roof. Natural ventilation alone is not enough in summer. We choose between direct cooling and evaporative cooling based on a site survey and the indoor humidity level.
- 3
Warehouse offices that are never comfortable
Supervisor and reception offices have different needs from the large storage hall. Putting them on one system raises cost and weakens performance in both areas. We give the office zone its own system and link it to the warehouse with pressure-control points.
Who it's for
Storing heat-sensitive stock in a warehouse
We locate the critical zone in the racking layout and design an independent cooling system with its own controls, keeping that area at a safe temperature separate from the rest of the warehouse.
Ask on WhatsAppBuilding a new warehouse and need HVAC from the start
We join the project at design stage before the roof closes, mapping cooling zones, ventilation and duct routes to fit the racking plan and loading doors from the outset.
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What the system covers
- Racking layout and zone map
- Cooling units per zone
- Ductwork from our workshop
- Independent controls per zone
- Airflow check after start-up
How we work
How we work
- 1
Site survey
We visit the warehouse, measure the internal height, review the racking layout and the positions of loading doors and offices, then map the main thermal zones before proposing any system.
- 2
System design and zoning
We design a system for each zone: central or split units for offices and critical stock areas, and evaporative or mechanical ventilation for the picking area where indoor humidity allows it.
- 3
Duct fabrication and installation
We fabricate round and rectangular ductwork in our workshop from G90 galvanised sheet to the site dimensions, insulate with Armaflex or Kimmco materials, then mount the units, run the copper and connect the control points.
- 4
Start-up and handover
We start each zone separately, measure airflow at multiple points across the warehouse floor, and check that all drain lines are clear before handing over.
A zoned system or unplanned scattered units?
| Alrabih | The usual way | |
|---|---|---|
| Zone design | Surveyed and mapped before fitting | Units added when complaints come |
| Ductwork | Fabricated to site dimensions | Flex duct without calculation |
| Evaporative cooling | Where humidity allows it | Fitted without measuring humidity |
| Sensitive stock | Separate zone with its own control | Left in the general air |
| Copper runs | Mueller, weld-free to 30 m | Multiple welded joints |
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.
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 Mahjar's warehouses are large with high metal roofs, holding varied stock from raw materials to finished goods, some needing steady cooling. Metal roof heat penetrates all day and coastal humidity rises the interior moisture load, pushing running costs up if zones are not split smartly. We install multiple cooling units with separate air ducts for each zone, keeping stock at safe temperatures and cutting power consumption.
Al Mahjar is in south Jeddah, an industrial and storage district with large warehouses and high metal roofs exposed directly to the sun.
Most warehouses here need multiple cooling units with separate ducts to cover large floor areas and high ceilings efficiently.
The AC setup in Al Mahjar
- 1
Multi-zone system with separate ducts
We divide the warehouse by use and stock type, giving each zone its own cooling unit and dedicated air ducts.
- 2
Outdoor units on roof or side walls
Outdoor units are mounted on the metal roof or side walls to allow easy periodic maintenance and sufficient external airflow.
- 3
Graduated-diameter ducting across zones
Duct diameters vary by zone size and cooling load, ensuring even cold air distribution across the warehouse without efficiency loss.
Before the visit
Before our visit in Al Mahjar
- 1
Provide warehouse layout and stock distribution
Send us a warehouse map showing storage zones and stock types in each area so we can design the system accurately.
- 2
Confirm roof and side-wall access is clear
Check that the roof and side walls are safely accessible for mounting outdoor units and starting installation.
- 3
Mark routes for cable runs and ducts
Agree with us on the best routes for duct runs and electrical cables inside the warehouse before the site visit.
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FAQ
Questions about Warehouse HVAC
Is evaporative cooling right for a warehouse in Jeddah?
It depends on indoor humidity levels and the type of stock stored. In well-ventilated open areas where stock is not sensitive to a small rise in humidity, evaporative cooling can work well. The site survey gives a clear answer before any decision is made.
How do you handle the height in tall warehouse bays?
In a tall bay, cool air settles low and hot air rises, which works in your favour when diffusers are aimed correctly at the working level and the racking. We set diffuser angles and positions during design based on the racking height and the movement aisles.
Can cold storage zones link to the rest of the warehouse system?
Cold rooms and freezer rooms run on their own refrigeration systems, which we install as a separate service. What we handle here is the ambient air around those room doors, so warm warehouse air does not rush in when they open, managed by pressure zoning between the two spaces.
Do warehouse air ducts need insulation?
Yes, especially ducts that run close to the hot metal roof. Without insulation, cool air gains heat before it reaches the diffusers and loses much of its effect. We insulate with Armaflex or Kimmco materials and seal joints with Foster sealants to stop air leaks.
Does airflow distribution differ between tall racking aisles and open floor areas?
Yes. In tall racking aisles the airflow path narrows and slows, so we choose directional diffusers that push air along the aisle length rather than spreading it sideways. In open floor areas we use wider-angle diffusers. The angle and position of each diffuser are set at design stage based on the aisle width and racking height.
Our stock is heat-sensitive; how do you protect it from temperature spikes?
We divide the warehouse by stock sensitivity and install a separate cooling unit and temperature control for each zone to maintain steady conditions.
The metal roofs heat the warehouse fast; does this affect the system choice?
Yes, metal roofs significantly raise the heat load, so we choose higher-capacity cooling units and assess whether adding thermal insulation or reflective roof coating is possible.
Sea-air humidity seeps into the warehouse; does it affect cooling performance?
Yes, coastal humidity raises the cooling load, so we add separate dehumidifying units in zones holding moisture-sensitive stock.
How do you route ducts and outdoor units across a large warehouse?
We survey the warehouse layout first and install ducts of different diameters for each zone's size; outdoor units are mounted on the roof or side walls for easier service and airflow.
