AHU servicing
AHU maintenance in Al Asalah
AHU maintenance in Al Asalah restores air balance and quality in residential towers, hospitals and hotels. When air quality drops or temperatures differ floor by floor, the cause usually lies inside the air handling unit 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.
Ask on WhatsApp
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.
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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 Asalah's modern residential and hotel towers rely on complex central AC systems with large air handling units that distribute air through metal ducts to multiple floors. These units demand regular maintenance because their filters, coils, belts and dampers face constant strain in Jeddah's hot and humid climate. Cleaning cooling and heating coils, checking belts and bearings, and restoring damper balance across each zone keeps the system efficient and prevents breakdown during peak heat seasons.
Al Asalah is in north Jeddah, a district of modern residential and hotel towers with complex central air systems.
Most towers here rely on large air handling units serving multiple floors through a single ductwork network.
The AC setup in Al Asalah
- 1
Large central air handling units
Towers are served by large AHUs housed in mechanical rooms on the roof or basement level, distributing air through extensive metal ductwork.
- 2
Multi-zone airflow systems
Each floor or block of floors has separate dampers to adjust the air reaching it independently.
- 3
Complex filters and coils
AHUs contain multi-stage filters and advanced cooling and heating coils that require regular inspection and cleaning.
Before the visit
Before our visit in Al Asalah
- 1
Locate the mechanical room and unit size
Tell us in advance where the mechanical room housing the AHU is located (roof, basement) and how many floors it serves.
- 2
Agree maintenance times with building management
Coordinate the visit time with tower or hotel management, as any shutdown affects occupants or guests.
- 3
Ensure equipment access
Confirm the mechanical room is easily accessible and you have management's permission to bring maintenance tools inside.
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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.
Our towers are new, why does air quality drop then?
The AHU filters clog fast in Jeddah's heat, and the cooling coils gather moisture and dust, so air quality drops even though the main chiller is sound.
The upper floor is cooler than the lower one, is it a design fault?
Usually the issue is damper imbalance inside the AHU, not the design. Rebalancing the dampers for each zone restores even temperatures across floors.
Humidity is very high on some floors, what causes it?
The cooling coils in the AHU may be dirty or unable to dehumidify properly because of Jeddah's salt-laden sea breeze, and cleaning them solves the problem.
Do we need to shut down the tower during maintenance?
It depends on the maintenance scope and whether backup units exist. A site visit determines whether shutdown is necessary or if staged work is possible.
