Commercial duct cleaning
Central AC duct cleaning in Al Marj
In Al Marj, north-east Jeddah, modern residential buildings and spacious villas rely on central AC systems with ductwork running through multiple floors. Duct cleaning restores airflow and reduces the load on the outdoor unit.
- Live cleaning
- Coils and trunks
- Resealed access
Clients We're Proud to Serve
Organisations and companies that trusted Alrabih with their projects.
When does a central system need duct cleaning?
- 1
Repeated complaints from occupants
Staff complaining of stale air, dust settling on surfaces quickly or uneven temperatures between rooms. These often point to buildup inside the ductwork rather than a refrigerant fault, and cleaning is the right first step before any other adjustment.
- 2
AHU running harder than it should
A dust-coated AHU coil blocks heat transfer, so the motor runs longer without reaching the set temperature. Cleaning the coil and plenum recovers the efficiency the unit has lost gradually as deposits built up.
- 3
A building with no duct cleaning history
Many offices, schools and government buildings in Jeddah run their central system for years without opening the ductwork. Dust and salt from Jeddah's coastal air build up in the metal trunks until the galvanised layer is affected and corrosion begins.
Who it's for
Office staff complaining of stale air and dust
We survey the duct network and plenum, then set a section schedule that lets your staff keep working throughout the cleaning.
Ask on WhatsAppPreparing your school or clinic before opening
We cut access doors in the main trunks and clean the coil and plenum before occupants arrive, then fit and seal metal access doors airtight.
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What the cleaning covers
- Camera inspection before work
- Main trunk section by section
- AHU coil and plenum
- Access doors cut and resealed
- Pressure and airflow check
How we work
How we work
- 1
Survey and plan
A technician visits, maps the duct network, marks where access doors will go and agrees the section order with you so the occupied parts of the building stay clear of the work area.
- 2
Open and isolate the section
We cut access doors in the main trunks at the agreed points, isolate the section with temporary dampers and photograph the interior with a camera to record its condition before cleaning starts.
- 3
Agitate and vacuum
Powered brushes break loose the deposits and lift compacted dust while an industrial vacuum unit works in the opposite direction, collecting everything displaced without letting it spread through the occupied space.
- 4
Seal, run and test
Access doors are fitted and sealed airtight, then we run the system and measure flow at the grilles to confirm balance is restored across the sections we cleaned.
Methodical cleaning or surface cleaning?
| Alrabih | The usual way | |
|---|---|---|
| Main trunks | Access doors and industrial vacuum | Cleaned from grilles only |
| AHU coil | Direct clean with documentation | Left or wiped on the surface |
| Building continuity | Section by section, no full shutdown | All areas shut at once |
| Access doors | Sealed and tested after fitting | Sealed with adhesive tape |
| Condition record | Camera photos before and after | No visual record |
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 Marj is a relatively modern district with multi-storey apartment blocks and detached villas on larger plots, most built with central AC systems distributed through floors and walls. After years in service, dust and fibres build up in the ducts, especially in villas with gardens and multiple entrances, choking the flow of cool air to inner rooms. Duct cleaning from inside needs safe access to the main unit, usually on the roof or in a distribution room.
Al Marj sits in north-east Jeddah, a modern residential district of detached villas and apartment blocks served by central systems.
Most villas and apartment blocks here have central AHU units on the roof or in a distribution room, with metal or plastic ductwork running through the floors.
The AC setup in Al Marj
- 1
Central AHU unit with distributed metal ductwork
Most villas and apartment blocks in Al Marj have a central AC unit on the roof or in a distribution room, with metal ducts branching to the rooms.
- 2
Sectioned ductwork per floor level
The ductwork is divided into main branches per floor, allowing section-by-section cleaning without a full system shutdown.
- 3
Evaporator coil and drainage in the distribution room
The main unit, coil and filter are typically in a dedicated room, making them contained but requiring coordinated access.
Before the visit
Before our visit in Al Marj
- 1
Tell us where the main unit and ductwork are located
Specify the main unit location (roof, distribution room, basement) and confirm whether the duct is metal or plastic so the team can prepare.
- 2
Ensure the roof or distribution room is safe and accessible
Check that the roof or dedicated room is safe to work in, and that stairs and passages are in good condition before the visit.
- 3
Coordinate with residents about temporary cooling gaps
Tell residents that some rooms may lose cooling briefly during the work, and agree on visit times that suit them.
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FAQ
Questions about Central AC duct cleaning
Can duct cleaning be done without shutting the whole system down?
Yes, section-by-section working is standard on large buildings. We isolate the section being cleaned with temporary dampers and work on it while the rest of the building continues running normally. The surveyor sets the section schedule after seeing the network layout.
How do you control airflow through dampers during section-by-section cleaning?
Before isolating any section, the technician checks and closes the associated dampers so that suction is directed into the section being cleaned and dust cannot travel into adjacent zones. Once a section is finished, the dampers are returned to their original positions and air distribution is checked before the team moves to the next section.
How do you handle access doors in suspended ceilings?
We agree the door positions with building management during the survey so they do not affect the visible finish. We cut the duct and fit metal doors screwed and sealed airtight. If ceiling tiles need to be cut, we coordinate that with whoever is responsible for the fit-out.
Do you clean the AHU coil and its filters in the same visit?
Yes, AHU coil and plenum cleaning is a core part of the central duct work, not a separate job. Filters are inspected in the same visit, and if they are badly damaged they are replaced as part of the work. The technician decides the actual condition after a direct inspection of the unit.
How do you reach ductwork above areas with no ceiling access?
During the survey the technician maps the main duct positions relative to available void spaces and selects the nearest reachable points for cutting access doors. If certain sections are fully blocked, the technician decides after direct inspection whether an alternative route exists or whether coordination with the fit-out team is needed.
Can you clean the villa duct without shutting down the whole AC system?
Yes, we clean the main duct sections progressively, so parts of the villa keep getting cool air during the work. This minimises disruption to residents.
Is the villa roof access safe and easy to reach for the team?
We need to confirm beforehand that the roof is safe to work on, and that the outdoor unit and main duct are accessible without obstruction. Tell us when booking if there are any access issues.
With Jeddah's dust and humidity, how often should the duct be cleaned?
It depends on system usage and the local environment. Jeddah's humid and dusty coastal air speeds up moisture and mould buildup in ducts, especially in villas near the sea.
Does the duct material need special care during cleaning?
Both metal and plastic ducts are common here. We match cleaning tools to the duct material to avoid damage, and check the insulation and seals as we go.
