Cooling fit for a mosque
Mosque HVAC in Al Karamah
In Al Karamah, south Jeddah, mosques need cooling that handles high halls and domes, plus fluctuating prayer crowds at every call. We design an even cold-air distribution across every row, keeping noise levels low enough not to disturb worship.
- Even distribution
- Quiet units
- Scheduled servicing
Clients We're Proud to Serve
Organisations and companies that trusted Alrabih with their projects.
When a mosque needs a specialist approach
- 1
Heat reaching the back rows
Cold air pools near the units and never reaches the back of the hall. In Jeddah's humidity, worshippers in the far rows feel the heat even with the system running. That is a design problem, not a unit fault.
- 2
Noise that disturbs prayer
Unit noise in a quiet hall distracts worshippers and breaks concentration. The right unit type, its position and the air velocity setting all reduce noise to the lowest possible level, and those choices are made at the survey.
- 3
A dome or high ceiling that traps heat
Hot air rises and collects under the dome, so the breathing level stays warm even with large units running. We set diffuser angles and air paths at the survey to push that hot layer out rather than cool over the top of it.
Who it's for
Building a new mosque that needs AC from the start
We join the design stage to fix duct routes and unit positions before ceilings are closed, so the installation is clean and efficient with no remedial work needed later.
Ask on WhatsAppYour existing mosque cools unevenly across the rows
We survey the existing system, find the cause of uneven distribution and propose changes to the airflow paths or units without disrupting the mosque.
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What the work covers
- Hall survey and airflow mapping
- Ductwork to SMACNA standard
- Units fitted at surveyed positions
- Airflow check across the rows
- Contracts scheduled between prayers
How we work
How we work
- 1
Mosque survey
We visit the mosque outside prayer times to measure the hall, ceiling height and dome, and agree diffuser positions, duct routes and unit locations before any work begins.
- 2
Design and fabrication
We design the system from the survey data and fabricate the ducts in our own workshop from G90 galvanised sheet, then prepare them for installation.
- 3
Installation at agreed times
We coordinate with mosque management to work between prayers or at times that do not interrupt activities, and we leave the hall clean at the end of each working day.
- 4
Testing and handover
We run the system and measure air distribution at the front and back rows and sound levels, adjusting the balance until comfort is even across the whole hall.
Designed for a mosque or units placed at random?
| Alrabih | The usual way | |
|---|---|---|
| Air distribution | Even across every row | Cold front, hot back |
| Sound | Assessed at survey | Not considered |
| Dome and high ceiling | Planned airflow paths | Hot layer left above |
| Maintenance | Scheduled between prayers | Visits that disrupt use |
| Startup scheduling | Programmed before each prayer | Manual, inconsistent start |
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 Karamah and surrounding areas host mosques of varying sizes, from small neighbourhood ones to large mosques with high domes and outdoor courtyards. Coastal heat and humidity in summer create high load on the cooling system, especially during the five daily prayers when the mosque fills suddenly with worshippers, rapidly raising heat and moisture. A central distribution system with multiple floor and wall outlets is essential to cover the vast halls and high ceilings without acoustic interference.
Al Karamah, in south Jeddah, is a residential area with several large public mosques featuring spacious halls, high domes, and outer courtyards.
Most large mosques here run a central system with concealed ductwork and multiple distribution outlets for the main prayer hall and secondary prayer rooms.
The AC setup in Al Karamah
- 1
Central system with insulated ductwork
High halls and domes require large concealed ducts in the ceiling or walls with acoustic insulation to prevent noise transmission.
- 2
Multiple distribution outlets in floor and walls
Even cold-air distribution across prayer rows requires low-noise outlets evenly spaced throughout the hall.
- 3
Large chiller units on roof or courtyard
Vast prayer areas require powerful chiller sets, often multiple units mounted on the roof or placed in a courtyard corner away from worshippers.
Before the visit
Before our visit in Al Karamah
- 1
Obtain the mosque's floor plan and room layout
A plan showing the main hall dimensions, dome heights, and prayer rooms helps us calculate system capacity accurately before design.
- 2
Confirm roof and courtyard access for unit placement
Ensure the roof is safe for mounting large units, and the courtyard has enough space away from seating and prayer areas.
- 3
Coordinate work timing with mosque management
Agree on installation and testing times outside the five daily prayers and other religious activities.
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FAQ
Questions about Mosque HVAC
How do you make sure the far rows get enough cooling?
At the survey we set diffuser angles, air velocity and duct routing so cold air travels to the last row. After installation we measure the temperature difference between the front and back rows and adjust each diffuser's balance until that difference is as small as the space allows.
Can you work in a functioning mosque without disrupting prayers?
Yes. We agree a phased schedule with mosque management in advance and divide the work into sessions between prayers. Before each call to prayer we lift tools, cover any temporary openings and return the hall to a usable state, then resume afterwards.
What type of ductwork do you use in prayer halls?
We fabricate ducts in our own workshop from G90 galvanised sheet, round or rectangular as the design requires. We use Armaflex and Kimmco insulation and Foster sealants to limit heat gain and keep sound transmission through the ductwork as low as possible.
Can the system be set to start just before each prayer time?
Yes. The controls on Carrier, YORK, General, Midea, Gree and Smart Gold units support scheduled start and stop times. At the survey we confirm the scheduling options for the chosen units and programme the timings at handover, so the hall is already cool when worshippers arrive.
Can we cool only part of the hall when fewer people attend?
Yes, if the system is designed in zones. We divide the hall into sections, each with its own unit or closable outlets, so you run the front rows alone when few people attend and the whole hall for Friday prayer and occasions, cutting power use without affecting worshippers.
How do you cool a large prayer hall without noise that disturbs worship?
We use acoustically insulated ductwork and distribution outlets designed to minimise air noise, with airflow speed adjusted to the hall size and expected prayer attendance.
The mosque fills suddenly at prayer times, how does the system handle this rapid load change?
The central system distributes cold air evenly across all rows, and the ductwork's capacity allows greater airflow when needed without dropping pressure in any zone.
Coastal humidity is strong here, does it affect system performance in summer?
Yes, high humidity and intense summer heat increase load on the chiller and fans, so we select cooling units with sufficient capacity and robust condensate drainage to handle excess moisture throughout summer.
The outer courtyard is exposed to the sun, where do you place the outdoor units?
We place the large outdoor units in courtyard corners or on the roof away from prayer gathering areas, shielded from direct sun where possible to improve cooling efficiency.
