The unit above the ceiling
Concealed central AC in Al Bahjah
In Al Bahjah in north-east Jeddah, modern villas and residential blocks use concealed central AC in the ceilings. Cleaning the coils and drain behind the plasterboard requires a team that respects the interior's beauty and ceiling delicacy.
- Stain-free ceiling
- Clean drain
- Balanced airflow
Clients We're Proud to Serve
Organisations and companies that trusted Alrabih with their projects.
When does a concealed unit need attention?
- 1
A damp stain on the plasterboard
Yellowing or a swollen plasterboard panel below the unit means the drain pan is overflowing. The cause is usually a blocked drain line or a dry trap that has lost its air seal, and leaving it widens the stain and damages the board.
- 2
Weak air from certain grilles
When grilles in one room weaken while others stay cool, the evaporator or blower inside the concealed unit needs cleaning. Jeddah's heavy dust settles on the fins and blower wheel and gradually cuts the airflow.
- 3
Humming or vibration from above
A recurring sound from the ceiling void may come from the blower wheel if it is dirty or unbalanced, or from the unit if its mounts have loosened. Finding the source means reaching the unit through the access panel and inspecting inside.
Who it's for
Installing a concealed unit in your new home
We check the ceiling void depth, mark the unit position, access panel location and drain route before the plasterboard is closed, so nothing needs reopening later.
Ask on WhatsAppA ceiling stain has appeared in your office or shop
We reach the concealed unit through the access panel, find whether the overflow is from the drain pan or the drain line and fix it without breaking the fitted-out ceiling.
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What the service covers
- Access panel check
- Evaporator coil and drain pan
- Drain fall and trap test
- Blower check and airflow balance
- Electrical readings and overflow tray
How we work
How we work
- 1
Locate and access
We check that the access panel is in the right place and large enough for the technician to reach the full unit without damaging the ceiling; if there is no panel, we mark where one should go.
- 2
Internal inspection
Through the access panel the technician inspects the evaporator, blower, drain pan and drain line and records the condition of each, so we know exactly where the fault is before starting work.
- 3
Clean and reset the drain
We clean the evaporator with a suitable cleaner, clean the blower wheel and drain pan, then flush the drain, check the trap and confirm the line falls the right way all the way to the discharge point.
- 4
Run and confirm
We run the unit, measure airflow at each grille and watch the drain pan to confirm no water is collecting, then show you what we found and what we did.
Proper service or wait for damage?
| Alrabih | The usual way | |
|---|---|---|
| Drain pan | Cleaned and fall confirmed | Overflows, ceiling stains |
| Drain trap | Checked and refilled if dry | Dries, air enters line |
| Evaporator coil | Cleaned, cooling maintained | Dust cuts cooling |
| Access panel | Located and easy to reach | Missing or in the wrong place |
| Blower wheel | Cleaned, balance restored | Dirt causes vibration |
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 Bahjah is a modern residential neighbourhood featuring spacious villas and upscale apartment blocks with orderly streets and shared gardens. Central AC is completely hidden in the ceiling, and the ceilings here are usually designed carefully with modern architectural touches. Coastal humidity and direct sunlight on upper ceilings speed up dust and moisture buildup. Accessing the coils and drain demands special care to avoid any damage to the beautiful ceiling.
Al Bahjah is in north-east Jeddah, a modern district of spacious villas and upscale blocks with carefully designed ceilings.
All modern villas and blocks in Al Bahjah have hidden central AC, typically with outdoor units mounted on roofs or side walls.
The AC setup in Al Bahjah
- 1
Central system hidden in architectural ceilings
The coil, drain and ducts are fully hidden in the ceiling void, with the ceiling itself carefully designed with modern architectural details.
- 2
Complex distribution ducts to multiple rooms
Distribution ducts run through the villa or flat serving all rooms with precise balance; cleaning them requires full knowledge of the system.
- 3
Complex drain with water trap and separate piping
The drain is indirect, featuring a water trap and pipes extending outside the building, requiring careful inspection to ensure free drainage.
Before the visit
Before our visit in Al Bahjah
- 1
Precisely locate all ceiling access panels
Tell us where the access panels are in each room, especially if they are hidden or not obvious due to the modern design.
- 2
Confirm roof and outdoor unit access is safe
If the unit is on the roof, check that stairs and railings are safe and there are no obstacles on the roof.
- 3
Report any moisture or odours near the ceiling
If you notice moisture stains or odours near the ceiling, let us know so we can focus on the drain and coils.
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FAQ
Questions about Concealed central AC
How does the technician reach the unit without breaking the ceiling?
Through the dedicated access panel in the plasterboard. If the panel is there and directly in front of the unit, the technician goes straight in. If it is missing or in the wrong place, we mark the right position and cut it cleanly without touching the rest of the ceiling.
What causes the drain pan to overflow onto the plasterboard?
The two most common causes in Jeddah are a drain line blocked by algae that grow in the high humidity, and a dry trap that lets air in and stops the water moving. Both can be fixed without replacing the unit, provided there is no mechanical damage.
Does Jeddah's humidity affect concealed units more than other types?
Yes, a concealed unit sits in a closed void with little ventilation, so more condensate collects on the drain pan than in an exposed unit. That makes the drain line and trap more likely to block or dry out, and keeping them clear matters more here than for any other unit type.
Can a concealed unit go into a ceiling that does not have enough depth?
The depth needed varies with the unit type and dimensions, and only a site survey decides. If depth is borderline, we check whether the plasterboard ceiling can be dropped slightly in the unit zone. If that is not possible, we suggest a better fit for the room size and ceiling height.
Does the plasterboard ceiling need a minimum void depth to fit both the concealed unit and the drain line?
Yes, the unit body needs a certain height, and on top of that the drain line must slope continuously from the unit to the discharge point. The actual void depth required depends on the unit type, the drain run length and where the discharge is; only a site survey gives the exact answer.
How do you handle carefully designed ceilings without damaging them?
We open access panels with extreme precision using specialised tools to avoid any scratch or mark. Everything is replaced exactly with no trace left.
The sun heats the upper ceilings, does this affect cleaning?
Yes, direct heat increases dust and mould buildup in the drain and coils. We clean carefully and inspect the drain to ensure it is not blocked by moisture.
The shared gardens are nearby, is there more dust here?
Gardens increase humidity and mould but reduce external dust. The drain and coils may be affected more by mould, which is why we clean them with special care.
The outdoor units are distant, how do you reach them for service?
Most outdoor units in Al Bahjah are on roofs or side walls. We confirm safe access before each visit and plan the time based on their distance.
