Cooling fit for a mosque
Mosque HVAC in Al Rahmaniyah
In Al Rahmaniyah, east Jeddah, mosques need cooling systems that handle sudden crowding at every call to prayer and the intense summer heat and humidity. Alrabih designs the cold air distribution to cover the wide hall and high dome evenly, while keeping noise 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.
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
East Jeddah's Al Rahmaniyah district has multiple mosques with wide halls, high ceilings and domes, and they see sharp crowding surges during the five daily prayers and Taraweeh. The cooling system here must handle temperatures above 45°C in summer, high coastal humidity, and distribute cold air evenly across thousands of worshippers without clustering cold in one zone.
Al Rahmaniyah lies in east Jeddah, a modern residential district with large mosques featuring wide halls and high ceilings.
Most mosques in this area rely on central ducted systems distributed through wide duct networks to cover the entire prayer hall and side aisles.
The AC setup in Al Rahmaniyah
- 1
Central ducted distribution system
Mosque halls need complex duct networks to reach every space, with a separate plant room for the chiller and condenser unit.
- 2
Chiller unit for the main dome
Mosques with large domes use a central chiller that distributes cold air through ducts to the main hall and side aisles.
- 3
Auxiliary units for entrance and courtyard areas
The courtyard and entrance need additional cooling before worshippers enter, so we install distributed units around waiting areas.
Before the visit
Before our visit in Al Rahmaniyah
- 1
Request a mosque layout and existing duct map
Ask the mosque management for the hall layout and current duct schematic, plus available space for the plant room and outdoor units.
- 2
Schedule visits outside prayer times
Installation and measurement require extended periods without disrupting worship, so visits must be scheduled between prayer times.
- 3
Confirm outdoor unit placement and equipment access
Ensure the outdoor space allocated for the chiller, condenser, and generator allows for regular maintenance and proper ventilation.
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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 handle the sudden surge in crowding at prayer time?
We size the capacity and ducts to absorb peak heat load when the hall fills completely, with multiple distribution points to deliver cold air evenly to every row.
Al Rahmaniyah's streets are wide, does this ease installation?
Yes, adequate outdoor space allows us to position outdoor units and generators easily, and makes moving heavy equipment during installation and maintenance straightforward.
Does the extreme summer heat affect cooling efficiency?
Al Rahmaniyah's extreme summer heat and coastal humidity raise system load considerably, so we select condensers with extra capacity and carefully position outdoor units for optimal airflow and drainage.
Do high ceilings and domes require special design?
Yes, high ceilings require extra vertical ducts and distribution outlets in elevated areas to prevent hot air pooling under the dome.
