Cooling fit for a mosque
Mosque HVAC in Kilo 14
In Kilo 14, south Jeddah, mosques serve dense residential communities in modern buildings with large halls and high ceilings. Alrabih designs a central cooling system that distributes cold air evenly across all rows without disturbing prayer and concentration.
- 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
Kilo 14's neighbourhoods are relatively modern, with multi-storey residential blocks and commercial complexes; the mosques here are built with high ceilings and architectural domes that need custom cooling design. Coastal heat and humidity impose a heavy cooling load, especially during crowded prayer times, and the system must reach cold air to the back rows as efficiently as the front without harsh draughts.
Kilo 14 sits in the south, a modern residential growth area with tall blocks and mosques featuring spacious halls and high ceilings.
Most mosques in Kilo 14 use central cooling systems with ducts concealed in the high ceilings to distribute air uniformly.
The AC setup in Kilo 14
- 1
Central system with concealed ducts
Ducts are concealed in the high ceilings and walls, wrapped with sound and thermal insulation to protect units and reduce heat loss and noise.
- 2
Sound dampeners and multiple distribution grilles
We install sound dampeners in the main ducts and distribution grilles spread across the ceiling and walls to deliver cold air uniformly throughout the hall.
- 3
Multiple outdoor units for required capacity
Large mosques in Kilo 14 typically need more than one outdoor unit to achieve the cooling capacity required in summer and high humidity.
Before the visit
Before our visit in Kilo 14
- 1
Inspect ceilings, domes and insulation
Before the visit, confirm access to the ceiling space and dome, and identify planned duct routes and any existing insulation.
- 2
Confirm outdoor unit locations
Identify potential locations on roofs or exterior walls for the units, ensuring adequate space and safe clearance from mosque walls.
- 3
Coordinate with mosque management and avoid prayer times
Agree with the imam or mosque caretaker on visit times and measurements, avoiding mandatory prayer times and special congregations.
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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 distribute cold air evenly in a mosque hall with a very high ceiling?
We design an insulated duct network that releases air from multiple points along the high ceiling, so the flow descends gradually to all rows without sharp draughts. On-site testing confirms even distribution before final commissioning.
Does the central system make noise that disturbs prayer and recitation?
We install sound dampeners in the ducts and low-speed fans to keep noise levels very low. Sound stays below a whisper even at peak operation.
Summer and humidity here are intense, what cooling load should we expect?
Coastal humidity and summer heat significantly increase the cooling load, especially when worshippers gather. A site survey determines the exact capacity needed based on hall size, insulation and sun exposure.
Does the hall need large outdoor units, and where are they installed?
Yes, a central system of this scale needs multiple outdoor units or one large unit. Location is chosen for easy access, adequate unit ventilation and safe distance from the mosque walls.
