Design before you buy
HVAC design in Al Ghawla
HVAC design in Al Ghawla is based on calculating the heat load for each room according to its area, windows and sun exposure. We select the right system and draw the layouts before you purchase any equipment.
- 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 Ghawla is a residential district in east Jeddah with medium-sized villas and flats built to more traditional designs than some newer neighbourhoods. This means most units have clearly separate rooms and fewer windows than open-plan layouts, though this does not reduce the need for accurate heat-load calculation. Choosing between independent splits per room or a single split with balanced air distribution depends on the villa or flat size and outdoor-unit location.
Al Ghawla is in east Jeddah, a residential district of medium villas and flats with more traditional designs and higher residential density than newer neighbourhoods.
Most villas and flats here have separate rooms and a moderate number of windows, suiting either independent splits per room or a dual-head split covering two zones.
The AC setup in Al Ghawla
- 1
Independent split per room or zone
Medium villas in Al Ghawla typically suit an independent split per bedroom or living room, giving individual temperature control.
- 2
Dual or triple-head split for smaller units
Smaller flats and villas may benefit from a single outdoor unit with multiple indoor units distributed across main rooms.
- 3
Hidden duct system for villas with adequate ceiling space
Some villas have ceiling space allowing hidden central ductwork, reducing the number of visible outdoor units.
Before the visit
Before our visit in Al Ghawla
- 1
Provide details of the intended outdoor-unit location
Tell us exactly where you plan to place the outdoor unit, on the ground, wall or roof, so we can calculate copper-line lengths accurately.
- 2
Gather the floor plan with room dimensions
We need an accurate plan showing each room's dimensions and the location of windows and doors, so we can calculate heat load for each area separately.
- 3
Ensure interior construction is complete before the visit
Ensure walls, ceilings and openings are finished before the visit, so we can see the actual spaces and unit-mounting locations.
More districts for HVAC design
Other services in Al Ghawla
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.
My villa is medium-sized, do I need one split or more?
This depends on the number of rooms and the distance between indoor and outdoor units. We calculate the load for each zone and recommend either a single split if distances are short, or multi-head splits if rooms are spread out.
My bedroom is far from the living room, how do I ensure even cooling distribution?
If rooms are spread out, we design a multi-head split system where each room has its own indoor unit connected to one or more outdoor units as needed.
My villa has limited outdoor-unit placement, does this affect the design?
Yes, the outdoor-unit location affects copper-line length and quantity. If space is limited, we may choose separate splits per zone instead of a unified system.
My villa has space above the ceiling, can we run ducts there?
Yes, if the space is adequate and safe, we can design hidden ductwork above ceilings distributed to multiple rooms, reducing the number of outdoor units needed.
