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
Sha'na's mosques are spacious, with tall-ceilinged halls and few columns, and see intense seasonal crowding especially during religious holidays. Coastal heat and humidity strain the system hard in summer, and the high ceiling makes cold-air distribution challenging without precisely balanced ducts and outlets. Design requires careful airflow study and sufficient duct static pressure to reach every height and corner, plus effective seasonal dehumidifying.
Sha'na is an east-side residential district with large mosques featuring tall halls that fill massively during holiday celebrations.
Most Sha'na mosques have large-capacity rooftop units with complex ductwork to cover the tall space and large floor area.
The AC setup in Sha'na
- 1
Large-capacity rooftop units
Most Sha'na mosques have units rated 5 to 8 tonnes or higher, with complex ductwork distributing cooling to various heights.
- 2
Balanced constant-pressure duct system
The system requires precise balancing to ensure even airflow in all branches and outlets, especially at high elevations and corners.
- 3
Multi-level air outlets
Outlets are distributed across different ceiling and wall levels to ensure cold air reaches the entire hall without concentrating in one zone.
Before the visit
Before our visit in Sha'na
- 1
Choose a time well away from religious gatherings
Call the mosque manager at least 10 days ahead, pick a day and time well clear of lessons, prayers and evening observances, and confirm the expected duration.
- 2
Map out unit, duct and outlet locations
Before arrival, locate outdoor units, hidden ducts, and outlets in ceiling and walls, and identify safe access routes to them.
- 3
Confirm logistical support from administration
Arrange with administration for adequate power supply, safe roof access, necessary keys, and mosque staff for immediate liaison during the work.
More districts for Mosque HVAC
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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.
The tall hall does not get equal cooling, how do we fix it?
Tall ceilings require fine balancing of outlets and duct pressure. We inspect airflow in ducts and add outlets or adjust fan speed to ensure cooling reaches every height and distant corner.
Intense summer heat overwhelms the mosque and the AC is not enough, should we expand capacity?
We first check the condenser, drains and outlets, as the problem may be servicing rather than capacity. If capacity truly falls short, we may add a parallel unit.
Coastal humidity makes the air inside feel heavy, how do we address it?
The AC dehumidifies automatically, but intense humidity may need periodic cleaning of the condenser and drains, and possibly a separate dehumidifier unit during seasonal peaks.
How do you coordinate maintenance around religious lessons and evening prayers?
We contact the mosque administration a week ahead, choose slots outside required prayers, religious programmes and evening prayers, and strictly avoid disruption.
