Design before you buy
HVAC design in Madain Al Fahd
HVAC design in Madain Al Fahd, south Jeddah, works with a modern district of wider layouts suited to large residential projects and spacious villas. We calculate heat loads for each section and choose between central systems or separate splits depending on floor area and coastal humidity.
- 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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Request this serviceDuct cleaning & sanitising
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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
Madain Al Fahd is a modern residential district in south Jeddah, with spacious villas and mid-rise apartment blocks set in open spaces between buildings. The buildings here are newer and less dense than old town, and roofs and open areas are readily available. This means the design can choose a single central system for blocks or separate splits for each unit. But Madain Al Fahd's coastal location means high humidity and constant heat, so heat loads must be calculated carefully and drainage for units must be well planned.
Madain Al Fahd lies south of Jeddah, a relatively modern residential zone of villas and blocks with wider spaces between buildings.
In Madain Al Fahd, central systems are common in large residential blocks and separate splits are typical for villas and small flats.
The AC setup in Madain Al Fahd
- 1
Central system for large Madain Al Fahd blocks
Large residential blocks here benefit from a single central system, since floor heights and open spaces allow efficient ductwork runs.
- 2
Separate splits for villas and small flats
Spacious villas and small flats choose separate splits for independent control and maintenance separate from other units.
- 3
Hybrid systems for commercial projects
Shops and commercial offices in Madain Al Fahd may use a hybrid of separate splits and central cooling depending on project size.
Before the visit
Before our visit in Madain Al Fahd
- 1
Provide accurate building plans
Have building sketches ready showing floors, rooms and dimensions, or ensure our team can measure spaces and heights accurately.
- 2
Identify orientation, windows and terraces
Tell us the compass orientation, large windows, open terraces and sun-exposed areas.
- 3
Confirm roof and passage access
Check that roofs, passages and open spaces are safe and accessible for the team, and let us know of any restrictions or obstacles.
More districts for HVAC design
Other services in Madain Al Fahd
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 coastal heat and humidity in Madain Al Fahd are intense, how does this affect the design?
We calculate higher heat loads than inland areas and select higher-capacity units, and we plan water drainage carefully to prevent condensation and mould.
Can one central system cool an entire apartment block here?
Yes, if floor heights and layouts allow balanced ductwork. We calculate loads per floor and select a system with even pressure and distribution, or split into two if the block is very large.
On a large villa's roof, where does the outdoor unit sit?
We choose a location away from seating and window areas as much as possible, and ensure adequate ventilation around the unit. We visit first and draw a plan showing the best placement.
How does the design handle long refrigerant runs between indoor and outdoor units?
We minimize the run length by placing the outdoor unit reasonably close to the indoor one. If distance is unavoidable, we specify larger-diameter pipes and monitor pressures to ensure efficiency.
