Design before you buy
HVAC design in Al Mahamid
In Al Mahamid, east of Jeddah, the area is known for modern residential blocks and medium-size villas in a fully serviced neighbourhood. We design the AC system by precisely calculating heat load for each home before buying 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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Request this serviceDuct cleaning & sanitising
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Request this serviceAHU maintenance
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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 Mahamid is a relatively modern residential area in the east, marked by modern blocks and medium villas with narrow courts and small gardens. Buildings here sit closer than Taiba or Al Nakhil, requiring careful design because villas are tightly spaced and apartment blocks are tall. Calculating sun exposure and shading from neighbouring buildings matters greatly, as does choosing outdoor unit locations so they do not disturb neighbours.
Al Mahamid is in east Jeddah, an area of modern mid-rise blocks and medium villas with narrow gaps between them.
Most mid-size blocks and villas in Al Mahamid use split units or a compact central system, depending on storeys and room count.
The AC setup in Al Mahamid
- 1
Separate split per flat in residential blocks
Residential blocks in Al Mahamid typically use separate splits per flat to avoid odour and heat transfer between flats.
- 2
Compact central system for medium villas
Medium villas in Al Mahamid with three or four rooms benefit from a compact central system with compressed ducts.
- 3
Vertical or wall-mounted outdoor unit
The tight outdoor spaces in Al Mahamid suit compact vertical units or units wall-mounted on courtyard walls.
Before the visit
Before our visit in Al Mahamid
- 1
Identify possible outdoor unit locations
Know where you want the outdoor unit (ground, wall, roof), and confirm it allows good airflow and maintenance access.
- 2
Tell us about surrounding buildings and expected shading
Know which sides have tall neighbouring buildings providing shade, so we factor this into the heat calculation.
- 3
Provide information about neighbours and tight spaces
Tell us how close the neighbour is to available space, so we choose the outdoor unit location to minimise noise and disturbance.
More districts for HVAC design
Other services in Al Mahamid
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 gap between my villa and the neighbour's is very tight, where do I place the outdoor unit?
We carefully survey the site and choose a location balancing access, airflow and neighbour consideration. Usually we recommend a rear or side position away from the neighbour's windows.
My new building has 12 flats on four storeys, how do we choose central AC?
We calculate heat load per storey and flat, then choose between one large central system or separate splits per flat. We draw the best option before you buy.
Shading from surrounding blocks changes sun hours, does that reduce the heat load?
Yes, shading does reduce heat load, but we do not rely on it entirely. We calculate for the worst case (no shade) then apply documented shading as a bonus factor.
The outdoor unit takes up space in my narrow courtyard, is there a more compact option?
Yes, we can choose vertical compact outdoor units or wall-mount them instead of placing them on the ground. We draw the different options and you choose what fits the space.
