AHU servicing
AHU maintenance in Al Ajwad
AHU maintenance in Al Ajwad balances ventilation in large hospitals, malls and commercial centres across east Jeddah. We clean filters, coils and fans to restore even air distribution across all sections and floors.
- Balanced airflow
- Clean air
- Quiet operation
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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Central AC installation
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Duct fabrication
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Cold room installation
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Electro-mechanical works
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Chiller & AHU installation
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HVAC design
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Refrigerant charging
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Central AC maintenance
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Chiller maintenance
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AC removal & refitting
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Duct cleaning & sanitising
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AC servicing by brand
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Operation & maintenance contracts
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AHU maintenance
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Fridge & freezer service
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Cold rooms
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Display fridges & chillers
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Factory HVAC
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Warehouse HVAC
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Villa & home HVAC
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School HVAC
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Mall & retail HVAC
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Restaurant & cafe HVAC
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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 Ajwad holds large commercial and medical buildings including malls, courts, hospitals and hotels with complex central cooling systems. AHUs in these large structures run under extremely heavy load to cover vast floor areas and high numbers of visitors and staff. Dust, moisture and mould accumulating in filters, coils and ducts cause rapid blockage and severe drops in air distribution between different sections and floors, affecting comfort, health and retail performance.
Al Ajwad sits in east Jeddah and holds large commercial and medical buildings including malls, hospitals and courts.
AHUs in Al Ajwad are very large with extremely high capacity, running at near-maximum rates throughout the year.
The AC setup in Al Ajwad
- 1
Massive multi-section air handling units
Large malls and hospitals use huge AHUs with separate sections for each zone or floor.
- 2
Advanced four-stage filter system
Large units have advanced four-stage filters for protection against pollutants, mould and moisture.
- 3
Long distribution ducts and complex networks
Ducts run across multiple floors and zones in the mall, requiring intensive regular cleaning.
Before the visit
Before our visit in Al Ajwad
- 1
Confirm the building's closing hours
Agree with us on the best time for maintenance, usually outside working hours or before opening, to avoid disrupting visitors and staff.
- 2
Pinpoint the AHU location and main ducts
Tell us the location of the main unit and primary and secondary ducts, and how many floors and zones it covers.
- 3
Coordinate with building management and central maintenance
Notify mall or hospital management a week in advance, and coordinate with in-house maintenance for safe access, lighting and assistance.
More districts for AHU maintenance
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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 mall is huge and temperatures differ widely between areas, could this be the AHU?
Yes, the large AHUs in malls need precise maintenance to balance air distribution between retail areas, restaurants and storage. Blocked filters significantly reduce flow.
The hospital is in the mall area with high humidity and pollution, does this affect the coils?
Yes, greatly. Coils face high exposure to pollutants and mould. Intensive maintenance every two to three months keeps the air clean and safe for patients.
The air ducts in the mall are very long, do they clog quickly?
Yes, long ducts collect dust and moisture quickly, especially in a mall with high footfall and pollution. Regular duct cleaning maintains airflow.
How do you clean such a huge AHU in a busy mall without disturbing customers?
We coordinate with mall management to schedule maintenance during closing hours or before opening, or in segregated areas away from customers. Send a photo on WhatsApp for exact measurements.












































































