AHU servicing
AHU maintenance in Al Ta'awun
In Al Ta'awun, South Jeddah, air handling units serve multi-storey residential buildings and hotels. When air quality drops or temperatures vary between floors, the cause usually lies in the AHU itself, not the chiller.
- 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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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
Al Ta'awun has relatively modern mid to high-rise residential buildings with complex central air systems relying on large air handling units. These units run continuously in South Jeddah's hot, humid climate, making regular maintenance of filters, fans and belts essential each season to prevent the distribution balance from degrading across the flats.
Al Ta'awun lies in South Jeddah, a district of modern mid-rise residential buildings with complex central air systems.
Most AHUs here serve extended ductwork networks covering dozens of flats and need periodic maintenance of air filters and fan assemblies.
The AC setup in Al Ta'awun
- 1
One or two central AHUs per building
Most residential buildings in Al Ta'awun rely on one or two large AHUs serving all floors and flats through an extended ductwork network.
- 2
Intermediate and high-efficiency filters in series
The units here are fitted with dual or triple filter stages to block dust and excess moisture from the outside air before it enters the distribution network.
- 3
Cooling coils exposed to outside air intake
The coils receive hot, humid outside air before cooling it, exposing them to salt and mould buildup, especially in summer and damp periods.
Before the visit
Before our visit in Al Ta'awun
- 1
Confirm the plant room location and access
AHUs are usually in a plant room on the ground floor or roof, so make sure our team can reach it easily and that doors open without obstruction.
- 2
Coordinate with building management about the maintenance time
Building management may prefer maintenance at a specific time to minimise air interruption to residents, so agree the time in advance.
- 3
Ensure the main electrical panel is accessible
We may need to cut power to the AHU for certain maintenance tasks, so confirm the main panel's location and that the unit's breaker is clearly marked.
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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.
What is the difference between a chiller fault and an AHU fault?
The chiller cools the water, while the AHU distributes that cold air to the flats. If the temperature is low but airflow is weak or unbalanced, the fault is in the AHU, not the chiller.
Do AHUs in high-rise buildings need more maintenance than split units?
Yes, because a single AHU serves dozens of flats and runs continuously under higher load, so dirt builds up in the filters and fan bearings much faster.
Does South Jeddah's high humidity damage the AHU coils?
Yes, coastal humidity accelerates mould and deposit formation on the coils and passages, reducing heat transfer efficiency, so coil cleaning must be part of regular maintenance.
Do the high-power electrical connections for the fan motors need special checking?
Yes, fan motors in large AHUs draw high electrical power, so regular inspection of wiring, connectors and terminals is essential to prevent electrical leaks or overheating.
