Design before you buy
HVAC design in Al Buddur
In Al Buddur, east Jeddah, designing your HVAC system based on actual heat load prevents overspending on oversized units. Alrabih measures your building's specific thermal pressures before choosing the right type and capacity.
- 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 fabrication
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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
Al Buddur is a relatively new residential area with modern apartment buildings and some small to medium villas at slightly higher elevation above sea level. These buildings feature newer architecture with better-efficiency glazing and insulated walls, but increased sun exposure and some elevated sites can raise midday heat load. Pre-design accounts for the site's geography, elevation and modern construction to select the optimum system without excess.
Al Buddur is in the east at higher elevation above sea, a district of modern apartment buildings mixed with smaller villas.
Buildings in Al Buddur need precise heat load calculations because elevation and location affect cooling efficiency compared to lower-lying areas.
The AC setup in Al Buddur
- 1
Single or dual split depending on area
Al Buddur flats and villas vary in size, so the design chooses between one split for smaller units or two for larger areas.
- 2
Central system for larger residential buildings
Some of the modern apartment buildings in Al Buddur are designed to accept a unified central HVAC system for several units with separate ducts.
- 3
Outdoor units with safe ventilation on roofs and balconies
The slight elevation and open spaces on roofs and balconies provide good ventilation for outdoor units without obstructions.
Before the visit
Before our visit in Al Buddur
- 1
Send details on building orientation and glazing
Tell us the direction of the main facades and window positions so we calculate sun exposure accurately.
- 2
Specify available location for outdoor unit
Tell us where the outdoor unit can be mounted and confirm there is enough space and good airflow around the location before the visit.
- 3
Gather information on noise and performance needs
Clarify any special needs for noise reduction or performance targets (such as separate control for different building areas) so we can include them in the design.
More districts for HVAC design
Other services in Al Buddur
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.
Does our elevation affect air-conditioning needs here?
Yes, the slight elevation affects air density and ventilation speed around the outdoor unit, so we factor that into heat load calculations and unit efficiency.
The sun seems harsh on some facades here; is that right?
The location and elevation increase sun exposure on east and south facades, especially at noon, so we select units with adequate capacity to handle that exposure.
The walls are well insulated in the new buildings here; does that reduce cooling needs?
Yes, good thermal insulation in walls and windows reduces heat loss, so we calculate load based on the actual properties of the modern building, not outdated standards.
Does the design account for future tree shade or landscaping?
Yes, if there are plans for landscaping or shading future facades, we account for that to prevent over-sizing the design in a few years' time.
