Clients We're Proud to Serve
Organisations and companies that trusted Alrabih with their projects.
When an AHU needs attention
- 1
Weak airflow or smells in the building
A clogged filter or dirty cooling coil cuts airflow and carries a musty smell through Jeddah's humid air. Occupants complain and productivity falls before anyone identifies the source.
- 2
Unusual noise from the plant room
A grinding or vibrating fan usually points to a worn bearing, a slack belt or an unbalanced blade. Delaying the diagnosis can turn a simple fix into a full motor replacement.
- 3
Uneven distribution between zones
One zone too cold and another too warm in the same building usually means a balancing valve not working or a stuck damper. The site survey decides which dampers and valves need adjusting or cleaning.
Who it's for
Your office staff are complaining about poor cooling
We inspect the unit under load, check filters, coil and dampers, and restore balanced airflow across every office zone.
Ask on WhatsAppYou run a medical facility or a large hall
We check the fresh-air intake, dampers and drain pan, verify the drain fall, and issue a written report documenting the condition of every component.
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What AHU servicing covers
- Filters checked, cleaned or replaced
- Belts and bearings checked, tensioned
- Coil and drain pan cleaned
- Dampers and fresh-air intake set
- Airflow, noise and motor measured
How we work
How we work
- 1
Unit and system survey
We review the system layout, unit sizes and count, run the unit and record airflow, pressure and noise readings before touching anything.
- 2
Mechanical inspection
We open the access panel and inspect belts, bearings, the fan blade and mounts, recording what needs tensioning or replacing before starting work.
- 3
Clean and adjust
We clean the coil and drain pan, verify the drain fall, adjust dampers and valves, and replace worn filters, belts and bearings as needed.
- 4
Performance check and handover
We run the unit again, measure airflow and compare it with the opening reading, then give you a brief written report of what was done and anything that needs follow-up.
Planned servicing or breakdown response?
| Alrabih | The usual way | |
|---|---|---|
| Filters and coils | Inspected and cleaned regularly | Ignored until failure |
| Belts and bearings | Changed before they fail | Found after the unit stops |
| Air quality | Clean and balanced airflow | Ongoing occupant complaints |
| Condition report | Written after every visit | No record kept |
| Fresh-air intake | Checked and adjusted each visit | Neglected until air quality worsens |
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.
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 Marsa's coastal buildings face unique challenges from high humidity and salt air, so AHUs work harder to remove moisture from the incoming air, which speeds wear on coils, filters and belts. Our maintenance focuses on deep coil cleaning to ensure moisture removal works properly, and checks for accelerated wear on mechanical parts from salt and humidity.
Al Marsa sits on the coast south of Jeddah and holds hotels, shopping centres and residential towers facing the sea.
Most coastal buildings in Al Marsa use AHUs with double or enhanced cooling coils to handle excess moisture.
The AC setup in Al Marsa
- 1
AHUs with double cooling coils
Al Marsa's coastal hotels and shopping centres use AHUs with double cooling coils to increase moisture removal in the humid seaside environment.
- 2
Complex condensate drainage systems
High humidity produces large volumes of condensate, so AHUs need complex drain lines with precise slopes and P-traps.
- 3
Extra corrosion protection
Motors and metal components of Al Marsa AHUs need salt and rust-resistant coating because of direct sea winds.
Before the visit
Before our visit in Al Marsa
- 1
Schedule maintenance with the hotel or shopping centre
Tell building management the maintenance date in advance and confirm the AHU can be safely shut down without affecting guests or shoppers.
- 2
Confirm safe roof and plant access
Check that pathways, stairs and railings on the roof are safe and clear before the visit, especially considering coastal winds.
- 3
Arrange power and clean water for cleaning operations
Provide a safe, grounded power outlet and clean water or a connected hose near the AHU for deep coil cleaning.
More districts for AHU maintenance
Other services in Al Marsa
FAQ
Questions about AHU maintenance
What is the difference between AHU servicing and duct cleaning?
AHU servicing focuses on the mechanical and thermal parts inside the unit itself: filters, coil, drain pan, bearings and dampers. Duct cleaning removes dust from the distribution network. The two jobs use different tools and address different problems, and we offer each as a separate service.
Can the AHU be serviced while the building is occupied?
In many cases yes, depending on the system layout and the number of units. If the building can run a standby unit while we work on another, servicing continues without cutting cooling to any zone. The technician confirms this at the first survey.
How does Jeddah's humidity affect AHUs specifically?
High humidity loads the dehumidification coil harder and speeds up algae growth in the drain pan, blocking the drain much faster than in dry climates. For that reason we give the pan clean and the drain fall check particular attention when servicing AHUs in Jeddah.
When does a bearing need replacing rather than just greasing?
If a bearing shows audible grinding, measurable heat on the housing or radial play when checked by hand, greasing will not fix it. We measure and inspect on site and decide the right action there, because bearing type and size vary from one unit to another.
How do you tell whether the fan needs balancing rather than just lubricating the bearings?
Continuous vibration with a steady hum usually points to an unbalanced fan wheel or dirt build-up on the blades, while an irregular grating sound comes from the bearing itself. The technician measures vibration on the frame and on the shaft; if it is higher on the frame he balances the wheel, and if it is higher on the shaft he inspects the bearing and decides whether to replace it or lubricate it depending on the degree of wear.
The hotel air feels humid even with the AC running, is it a chiller problem?
Often the cooling coils in the AHU are fouled with salt and marine algae, reducing moisture-removal capacity. Deep coil cleaning restores performance.
The AC plant on the roof is exposed to sea wind and salt spray, how do you access it safely?
We check the plant is securely mounted before maintenance, use safety equipment as needed, and coordinate with building management to secure the area.
Does salt air shorten the life of the motor and filters?
Yes, salt accelerates corrosion and rust on the AHU motor and filters alike, so replacements are needed more often than inland areas.
How do you handle the condensate drain system from the AHU?
We check the drain lines and gradients for blockages and algae, and confirm proper drainage to prevent moisture buildup inside the coils.
