Design before you buy
HVAC design in Abhur Al Shamaliyah
HVAC design in Abhur Al Shamaliyah starts by calculating the heat load for each room based on its area, glazing and solar exposure. We select the right system type and draw the layouts before you buy 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
Abhur Al Shamaliyah is a relatively modern district of spacious villas on wide plots with direct sun exposure from the north and east. Correct HVAC design here must account for strong solar radiation on large glazed facades and the open gaps between villas, and undersizing the system leaves rooms uncooled during peak heat. We calculate the thermal load for each zone in the villa based on its orientation and use.
Abhur Al Shamaliyah lies in northwestern Jeddah, a district of modern villas on wide plots with large glass frontages.
Most villas in Abhur need a central AC system or multiple split units, not a single small unit, because of the large floor areas.
The AC setup in Abhur Al Shamaliyah
- 1
Central AC system with main ducts
Larger villas in Abhur usually benefit from a unified central system rather than separate units, since ceiling space is typically available.
- 2
Multiple split units with smart distribution
Some villas prefer multiple split units distributed across living, bedrooms and home offices, with the load calculated separately for each zone.
- 3
Supplementary units for covered verandas
Covered verandas and large front entries in villas often need a supplementary unit to keep cooling even across those zones.
Before the visit
Before our visit in Abhur Al Shamaliyah
- 1
Gather villa blueprints and dimensions
Bring the architectural drawings and full villa dimensions, especially the positions of windows, doors and load-bearing walls.
- 2
Identify space for outdoor units and vents
Identify where you will place the outdoor units and external vents, noting distances from neighbours and common areas.
- 3
Tell us the planned use of each room
Tell us if there are home offices, bedroom suites or large living areas, as this affects load calculation and design.
More districts for HVAC design
Other services in Abhur Al Shamaliyah
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.
Our new villa has large glass windows, how do you calculate the thermal load?
We calculate the solar contribution through each window based on its size, orientation and insulation, then add it to the load from ventilation, appliances and occupants.
Summer heat in Abhur is intense, does that mean I need larger units?
Yes, we factor in Abhur's high outdoor summer temperatures and strong solar radiation, to ensure the system capacity is enough to keep comfort even at peak heat.
The villa has rooms of different sizes and light exposure, does each need separate calculation?
Yes, we calculate the thermal load for each room separately based on its area, windows and solar exposure, then select AC units or ductwork branches suited to each zone.
Do the ducts and pipes need much ceiling space or will standard depth work?
It depends on the system design and the ceiling space available in your villa. We lay out the ducts based on their size and branches, ensuring the available space is adequate before you buy.
