Cooling fit for a mosque
Mosque HVAC in Petromin
Petromin in south Jeddah serves dense working populations in an industrial and commercial zone, so a cooling system that handles crowding and high heat is essential for a mosque. Alrabih designs systems to distribute cold air evenly across the prayer hall while keeping the space quiet for 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
Petromin is a high-economic-activity area, and its mosques draw large numbers of workers and employees during peak hours and prayer times. Temperatures here run very high because the zone is open and surrounded by warehouses and workshops that emit extra heat, and the hot southern wind adds pressure to the cooling system. The design must provide enough cooling capacity to avoid strain under heavy attendance, and deliver cold air evenly across every prayer row without draughts or noise that would disturb worship.
Petromin lies in south Jeddah, an open economic zone surrounded by warehouses, workshops and a large workforce.
Most Petromin mosques are large halls with high ceilings, sometimes with lower sections, requiring purpose-designed air distribution.
The AC setup in Petromin
- 1
Central cooling unit with distributed ductwork
The large halls in Petromin need a powerful central cooling unit with ductwork reaching every corner, and diffusers that control air precisely.
- 2
Advanced filtration for industrial dust
The industrial zone requires high-efficiency filters to capture dust and pollutants before cold air enters the prayer hall.
- 3
Acoustic dampers in the ductwork
We place acoustic dampers in sections of the network to reduce air-flow noise and ensure the hall remains a quiet space for worship.
Before the visit
Before our visit in Petromin
- 1
Provide a floor plan and prayer row layout
Send us a floor plan showing the number of prayer rows, pillars and exits, so we design the air distribution precisely.
- 2
Confirm the expected attendance
Tell us the expected attendance at regular prayers and on Friday, so we size the system based on actual crowding.
- 3
Mark the outdoor unit and air inlet locations
Choose a safe location on the roof or outside the mosque for the outdoor unit, and decide where fresh air enters the cooling system.
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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.
Our mosque hall is very large with many pillars; how do you distribute the cold air evenly?
We design a duct and diffuser network that delivers cold air from the cooling unit to every corner of the hall, avoiding strong draughts in the prayer area. The pillars help us hide some ducts and position the vents to suit the prayer layout.
This area is very hot and there are warehouses all around; will the cooling system be sufficient?
We size the unit based on the hall's volume, expected attendance and the extreme heat in the industrial zone, so it maintains steady temperature even during peak times. An on-site visit confirms the actual requirements.
Workers come from hot and dusty workshops; does that affect the AC filters?
Yes, industrial dust accumulates faster in the filters, so we install high-efficiency ones and recommend cleaning every few weeks during the hot season.
How do you avoid AC noise during prayer and the sermon?
We select low-noise cooling units and design the ducts to reduce air sound, and add acoustic baffles where needed to keep the hall quiet.
