HVAC for learning spaces

School HVAC in Al Bahjah

In Al Bahjah, north-east Jeddah, modern schools serve pupils from surrounding neighbourhoods, so AC must run reliably under high daily thermal stress. Alrabih's team designs a flexible system handling heavy load with comprehensive seasonal maintenance.

  • Even distribution
  • Quiet in class
  • Summer maintenance

Clients We're Proud to Serve

Organisations and companies that trusted Alrabih with their projects.

  • Saudi Aramco
  • Ministry of Energy
  • Royal Saudi Land Forces
  • Royal Saudi Naval Forces
  • Al Baik
  • Centro Hotels by Rotana
  • King Abdullah Economic City
  • First Mills
  • Juffali
  • eXtra
  • Dr. Soliman Fakeeh Medical Center
  • Alesayi Motors
  • Abu Zaid
  • Water Desalination
  • Attieh Steel
  • SSCO
  • Creet
  • Emad Rizq
  • Alfaneyah
  • Rawat Alam Al Tasmeem
  • IBI Magix Arabia — Construction Services
  • Midtown for Construction
  • Petra Engineering Industries Co.
  • Hyrmas
  • Batterjee Medical College
  • Advanced Horizons Contracting Company
  • D.Metals
  • Benchbox — Masters of Space
  • Sadafco
  • Umm Al-Qura University
  • Saudi Arabian Drug Store (SADS)
  • Foamco
  • Ahmad A. R. Bin Afif Industries Co. (Sandwich Panel Factory)
  • Namariq
  • ALS

When a school needs a specialist

  1. 1

    Hot classrooms affecting learning

    When teachers report heat that breaks concentration and tires students by midday, the problem is usually in air distribution, not unit capacity. A site survey finds where it goes wrong and what is needed.

  2. 2

    Unit noise interrupting the lesson

    A unit in the wrong spot, a clogged filter or an unbalanced fan creates noise that distracts the class. We find the source on site and fix it, and at installation we choose units and routes suited to a classroom environment.

  3. 3

    Upgrading the system over summer

    The long summer break is the only window for installation or replacement work that needs extended hours inside classrooms. We plan with school management to finish before the first school day so the timetable is not affected.

Who it's for

  • Running a school that needs maintenance

    We set up a preventive and corrective maintenance contract covering classrooms, the prayer room and corridors, carrying out major work in the summer break so the school year starts with a sound system.

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  • Building a new school that needs AC design

    We review drawings with the contractor and design air distribution and ductwork before ceilings close, so every classroom has even airflow and low noise from the first day of use.

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What our school work covers

  • Survey of all rooms
  • Air distribution and unit placement
  • Units beyond students' reach
  • Ductwork to SMACNA standards
  • Preventive and corrective maintenance contracts
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How we work

How we work

  1. 1

    School building survey

    We visit the school, measure classrooms, corridors and the prayer room, and record heat sources and loads in each space before making any recommendation.

  2. 2

    System design and planning

    We draw a layout showing unit positions, duct routes and ventilation openings, and agree an installation schedule with school management so work does not clash with classes.

  3. 3

    Installation during the break

    We carry out installation during the holiday or at times that do not disrupt school, mounting units in high or protected positions away from students.

  4. 4

    Commissioning and handover

    We run the full system and check air distribution in every classroom, measuring the air at desk level, then hand over to the school with a record of what was done.

Planned installation or scattered units?

AlrabihThe usual way
Air distributionDesigned for the classroomUneven, corners stay hot
Noise levelSiting and route reduce noiseUnit drowning out the teacher
Unit positionOut of students' reachAt hand height
Summer servicePlanned before term startsFaults appear in the first week
Fresh air supplyDesigned into the layoutAn open window or nothing

Some of our work

Ductwork, rooftop units and diffusers, from work we've completed in Jeddah.

  • Galvanized rectangular duct trunk with branch takeoffs and round diffusers, hung from a black ceiling, a Carrier unit visible behind — interior finishing stage.
  • Round diffusers and a spiral duct trunk in a tiled stairwell service shaft.
  • Rooftop ductwork and an exhaust fan, with Jeddah buildings in the background.
  • Rooftop packaged AC units with rectangular duct transitions, city buildings behind.
  • Insulated rooftop duct run beside a packaged unit, a warehouse roof in the background.
  • A grid of round diffusers in an open-plan office ceiling, mid-construction.
  • An insulated rooftop duct elbow, against a mountainous backdrop.
  • Large insulated ductwork running along a factory ceiling, with workers visible below.
  • A yellow round diffuser mid-installation, with spiral duct and a suspended ceiling grid.
  • Duct insulation wrap in progress on a construction site, bare duct still exposed.
  • A black-painted duct trunk with round diffusers and track lighting, in a finished retail interior.
  • An indoor AHU unit connected to round ductwork in a mechanical plant room, exposed concrete ceiling.
Similar project? Send us the details

Customer reviews

What our customers say

4.8

From 10 Google reviews

  • 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”

Read every review on Google

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 review

Service 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.

Map of Jeddah by sector, with Alrabih's base in Al Aziziyah
Don't see your district?Message us. We most likely cover it.

What sets this district apart

Al Bahjah schools are modern in a developing residential area, with classrooms on multiple floors and long corridors needing uniform cooling. Being near other residential zones means the school draws large student numbers daily, increasing cooling stress during morning and midday peaks. Modern drop ceilings allow flexible ductwork routing, and large windows provide natural light but increase solar load. Full summer maintenance is essential to ensure everything is ready before students return.

Al Bahjah sits in north-east Jeddah, a newly built residential neighbourhood with schools and educational facilities serving a developing community.

Most schools in Al Bahjah use central AC with ducts distributed across multiple floors, using one or more outdoor units based on school size.

The AC setup in Al Bahjah

  1. 1

    Central system distributed across floors

    Multi-floor schools in Al Bahjah use ducts from one or more units with balancing dampers per floor to ensure each level gets equal cooling.

  2. 2

    Outdoor units on roof or ground area

    Modern Al Bahjah buildings offer multiple options for outdoor unit placement, whether on roof or in secure ground areas away from students.

  3. 3

    Smart central thermostat with zoning

    A smart central thermostat manages overall temperature with local dampers in each zone for student and staff comfort.

Before the visit

Before our visit in Al Bahjah

  1. 1

    Collect building and ceiling details

    Tell us floor count, classroom count and building footprint, and any obstacles in drop ceilings affecting ductwork routing.

  2. 2

    Identify available outdoor unit locations

    Tell us where outdoor units can be mounted (safe roof or clear ground area) and confirm adequate space and safe access.

  3. 3

    Coordinate visit date with school administration

    Best timing for visits and full maintenance is during long summer break, a few weeks before students return.

FAQ

Questions about School HVAC

How do you keep noise low inside the classroom?

Noise usually comes from high air velocity or an indoor unit mounted on a shared wall between two classrooms. We select units with low sound ratings, calculate air velocity at each outlet to prevent whistling, and insulate duct runs above the suspended ceiling. The exact unit position and diffuser angle are decided during a site survey of each room.

How do you handle the prayer room and corridors alongside classrooms?

The prayer room needs wide, quiet air distribution at low level above worshippers, which is quite different from a classroom. Corridors need enough cooling to prevent hot air from flowing into classrooms when doors open. We design each zone on its own air circuit with a separate thermostat; the final layout depends on floor area and ceiling height on site.

Can ductwork be added to an existing school building?

In most cases, yes. We check the gap between the ceiling and the slab, and how accessible the ceiling void is, before making any decision. We fabricate round or rectangular ducts in our own workshop to match the building's exact dimensions, and we route them to avoid structural columns and penetrations. Where ceiling space is too tight, cassette or concealed units may be the better fit.

Why are indoor units positioned out of students' reach?

A low-mounted unit in a room full of students is easily damaged: fins get bent, the drain port gets blocked, and the fan grille gets broken. We mount units at heights and positions that keep them clear of students, while still delivering cooled air down to the seated zone. The precise position is set after the team measures ceiling height and seating layout in each room.

Can the work be done during the school year?

Large tasks such as running new ductwork or replacing multiple units are scheduled during the long summer break to avoid any disruption to lessons. Routine maintenance and isolated repairs can be arranged outside school hours or at weekends in coordination with school management. Work inside classrooms during the school day requires a site assessment first to confirm it can be done without causing disruption.

Our school draws pupils from several neighbourhoods, can the system handle the daily load?

We design and size cooling based on expected student and classroom numbers. We choose adequate capacity and plan for peak hours (mornings and midday), conducting full maintenance before term to ensure readiness.

How often should we maintain the system per year?

We recommend full maintenance before summer and before term restarts, plus regular filter and duct cleaning during the school year. This ensures high efficiency and longer equipment lifespan.

Students and teachers complain about uneven cooling between classrooms, how do we fix it?

The issue may be unbalanced ducts or clogged filters. We assess the system, check filters and adjust balancing dampers to ensure equal cooling in every classroom.

Large windows cause intense heat, are our units sufficient?

It depends on window count, orientation and area. If sun hits windows all day, an additional unit may be needed. We visit to measure solar exposure and confirm.

The Jeddah corniche in cool weather

Plan your school HVAC before the season

Contact Alrabih to book a school survey, Saturday to Thursday, and we will set a plan that finishes before the first day of term.

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