Design before you buy
HVAC design in Al Hindawiyah
In Al Hindawiyah, old downtown Jeddah, HVAC design starts with the building's existing age and structure. Closely built, older buildings need simpler designs, usually independent split units per shop or flat rather than complex central systems.
- 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
Request this serviceDuct installation
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Request this serviceDuct fabrication
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Request this serviceAC repair & faults
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Request this serviceAC removal & refitting
Request this serviceDuct cleaning & sanitising
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Request this serviceRestaurant & cafe HVAC
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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 Hindawiyah's buildings are old and closely packed, without the space for complex central systems with intricate ductwork. HVAC design here focuses on independent splits per residential or commercial unit, meaning each shop or flat is calculated separately. Narrow streets and close-set entries also mean outdoor unit placement needs care to avoid blocking neighbours or windows.
Al Hindawiyah sits in historic downtown Jeddah, an older district of closely built residential and commercial blocks around the popular markets.
Most shops and flats in Al Hindawiyah rely on simple independent splits, with outdoor units mounted on narrow facades or small balconies.
The AC setup in Al Hindawiyah
- 1
Simple independent split per shop and flat
Most older Al Hindawiyah buildings rely on one split per shop or flat, with an outdoor unit on a narrow facade or small balcony.
- 2
Dual split for slightly larger spaces
Some larger shops and relatively spacious flats may need a dual split, but outdoor units remain carefully hidden on narrow facades.
- 3
Window cooling for exceptional cases
Very old buildings may not allow even a split unit, so window cooling remains a temporary or permanent option in rare cases.
Before the visit
Before our visit in Al Hindawiyah
- 1
Check the available facade for the outdoor unit
Inspect your exterior walls and balconies and tell us of any available space to mount the unit safely and away from neighbours.
- 2
Coordinate with the shop or building owner about placement
If you are in a shop or rented flat, confirm with the owner or landlord about the outdoor unit location before design.
- 3
Ask about the condition of old electrical wiring
Old buildings may need a new dedicated electrical circuit for the split. Check the main breaker and wiring condition before the visit.
More districts for HVAC design
Other services in Al Hindawiyah
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 building is very old, can I install a central system?
Most old buildings in Al Hindawiyah cannot support a central system because of tight spaces and aged structure. Independent splits are the most practical choice.
The street is very narrow, where can I place the outdoor unit?
We visit and assess options, whether a balcony, exterior wall or high window. We choose a safe spot that does not block the street or affect neighbours.
Humidity is high here, how do I choose the right split type?
High humidity means the split needs strong drainage features and an outdoor unit in a well-ventilated spot. We choose units with good drainage capacity and outdoor placement that gets airflow.
Only a narrow facade separates my unit from the neighbour, does that affect design?
Yes, it greatly affects outdoor unit placement. We calculate the load based on the actual available facade and choose a unit size and location that respects your neighbour's space.
