Design before you buy
HVAC design in Al Rawdah
In Al Rawdah, west Jeddah, closely built medium-rise apartment blocks need careful AC design that accounts for limited outdoor space and multiple floors. We calculate the cooling load for each flat and choose the units before any work begins.
- Accurate heat loads
- System selection
- Duct drawings
Clients We're Proud to Serve
Organisations and companies that trusted Alrabih with their projects.
Who needs a considered design?
- 1
Owner planning a new build
Before walls and ceilings are finished you still have the chance to route ducts and place units correctly. Early design prevents costly surprises during fit-out and delivers rooms that cool evenly from the first day of operation.
- 2
Architect or contractor needing drawings
The project needs mechanical drawings to co-ordinate with the structure, electrical and plumbing trades. We produce duct layout drawings, equipment positions and installation heights in a format the site can use directly.
- 3
Existing building with uneven cooling
Some rooms stay hot even with the AC running while others are over-cooled. The cause is usually wrong airflow distribution or uncalculated capacity. A redesign finds the fault and defines what needs changing before any new purchase.
Who it's for
Building a villa and want design before fit-out
We calculate the heat load for every room in the villa and draw duct routes before ceilings are closed, so you avoid breaking the finished work later.
Ask on WhatsAppRunning a commercial building with hot rooms
We review the current airflow distribution and recalculate loads per space, then identify faults in the ducts or equipment and draw the required changes before any purchase.
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What the design covers
- Heat load per room
- Right system type selected
- Equipment from authorised brands
- Duct distribution layout drawings
- Equipment schedule for construction
How we work
How we work
- 1
Gather building data
We ask for the architectural drawings or visit the site to measure spaces and record glazing, orientation and internal loads from people, equipment and kitchens.
- 2
Calculate heat loads
We calculate the heat load for each space separately, accounting for Jeddah's intense sun, high humidity and exposed facades, so every unit is sized on real load not guesswork.
- 3
Select system and equipment
Based on loads and building type we choose between splits, ducted systems, central air and chiller, and specify equipment from Carrier, YORK, General, Midea, Gree and Smart Gold to suit the project.
- 4
Draw and deliver
We draw duct routes, unit positions, diffuser locations and installation heights, and deliver a complete equipment schedule ready for construction or tendering.
Calculated design or buying blind?
| Alrabih | The usual way | |
|---|---|---|
| Unit size | Based on actual load | Guessed or oversized |
| Airflow distribution | Drawing that achieves even flow | Diffusers placed at random |
| Co-ordination | Drawings before fit-out | Costly changes later |
| System type | Suited to building and budget | Whatever the shop suggests |
| Humidity and salt air | Accounted for in equipment choice | Discovered after installation |
Everything your AC needs, from one team
From system design and duct fabrication to installation, commissioning and maintenance.
Split AC installation
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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
Al Rawdah buildings are relatively modern with multiple flats per tower, and the blocks sit very close together, limiting outdoor space for unit placement. Design here focuses on separate split units per flat or shared splits between two flats where possible, with tight calculations for copper runs and narrow duct routes. Each flat sits at a different height and faces different sun exposure by orientation, so the design accounts for all this variation.
Al Rawdah is in west Jeddah, a district of closely packed medium-rise apartment towers with very limited outdoor space.
Most Al Rawdah flats require a separate split unit per flat because the closely built blocks do not allow a unified central system.
The AC setup in Al Rawdah
- 1
Separate split unit per flat
Most Al Rawdah cases need an independent split unit per flat because of building density and lack of shared space.
- 2
Shared split between two adjacent flats
In some cases two adjacent flats may share one outdoor unit to save space, but this requires precise duct design and temperature control planning.
- 3
Low to medium capacity units by flat size
Al Rawdah flats are typically small to medium, so unit capacity selection matches actual space to avoid overconsumption and noise.
Before the visit
Before our visit in Al Rawdah
- 1
Get building management approval in advance
Each Al Rawdah building may have specific conditions for outdoor unit placement on facades or roofs; confirm approval before design.
- 2
Bring exact flat measurements and window sizes
We need exact flat dimensions, window sizes and open and enclosed areas to accurately calculate heat loads.
- 3
Identify electrical and plumbing locations
Tell us where electrical outlets and existing pipes are in the flat and exterior walls so we can plan the best route for copper and ducts.
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FAQ
Questions about HVAC design
When is a chiller more suitable than split units?
The decision depends on the building area, number of spaces and how it is used. In large commercial and hotel buildings a chiller gives flexible control and simplifies central maintenance. In apartments and smaller villas a split or ducted system usually fits better. The calculated heat load is what determines the right choice for your building.
How does a large glazed facade affect the design?
Large glazing exposed to Jeddah's sun raises the heat load noticeably, especially on west and north-west facades. We calculate solar gain through each facade separately, and this can change the unit type selected for that room or require extra diffusers to handle the higher load.
Can you design for an existing building with no architectural drawings?
Yes. When no drawings exist we visit the site and measure every space ourselves, recording facades, glazing and how each room is used. The survey takes longer than reviewing ready drawings, but the calculations still rest on real measurements rather than estimates, which is what makes the results reliable.
Does the design include diffuser types and dampers?
The drawings specify diffuser types, positions and sizes to match ceiling height and room shape, and show where dampers are needed to balance airflow to each zone. These details matter because a diffuser in the wrong place wastes a large part of the system capacity even when the units are correctly sized.
Does duct design differ between the ground floor and upper floors?
Yes. The top floor typically carries a higher heat load because the roof is directly exposed to the sun, which affects duct sizes and the number of diffusers needed on that level. We design each floor separately based on its own calculated load and show where dampers are needed to balance airflow between floors.
The flat is small and outdoor space is very tight; how do we choose the unit size?
We calculate the cooling load based on flat size, windows and expected occupancy, then choose a unit capacity that fits the available outdoor mounting space.
The buildings are packed tight; can we mount outdoor units on walls or only on the roof?
We determine the right mounting location by flat and building, which may be exterior wall, balcony or roof, but all depends on building drawings and management approval.
Humidity is high in Al Rawdah, especially near the coast; does that affect unit choice?
Yes, we select units with strong dehumidification capacity to handle coastal moisture and ensure ducts and drains are positioned to prevent water buildup.
The flat is on an upper floor with sun hitting the window all day; do we need a larger unit?
We calculate the extra heat from sun and exposed glass and may select a higher-capacity unit based on flat depth, window size and orientation.
