Design before you buy
HVAC design in Al Nuzha
HVAC design in Al Nuzha focuses on the central mixed-use area with residential buildings, commercial spaces, offices and hotels. We calculate heat load precisely and select the right system before purchase to avoid mistakes and thermal waste in diverse buildings.
- 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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Request this serviceMall & retail HVAC
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 Nuzha is a diverse central area of Jeddah mixing residential villas, apartment blocks, hotels and commercial offices on a relatively tight footprint. Buildings here are closer together than northern districts, and receive varying sun exposure by orientation and height. Design needs more flexibility because each building type requires different heat load, hotels needing continuous high cooling and offices concentrating cooling during business hours. Calculations must account for building use, expected occupancy, lighting and electrical equipment.
Al Nuzha is in central Jeddah, a mixed-use area combining residential, commercial and hotel buildings on limited land.
Diverse buildings in Al Nuzha need different AC systems by type, from simple splits for small villas to powerful central systems for large hotels and offices.
The AC setup in Al Nuzha
- 1
Separate splits for small villas and flats
Small villas and residential flats in Al Nuzha use one or two splits due to limited space and closely built blocks.
- 2
Powerful central system for hotels and large offices
Hotels and large offices need powerful central units with advanced zone controls and complex duct distribution to cover many rooms and staff.
- 3
Window or portable units in small shops
Small shops in Al Nuzha often use window or portable units due to tight space and inability to fix permanent AC.
Before the visit
Before our visit in Al Nuzha
- 1
Provide building use details and expected occupancy
Tell us the building type and use (residential, hotel, office, shop) and expected occupancy, so we can calculate precise heat load.
- 2
Identify available outdoor unit locations
Because buildings are close, explore alternative rooftop, side wall and parking locations and tell us all available options.
- 3
Confirm electricity and future maintenance access
Check adequate power is available, and confirm outdoor units can be safely accessed for routine maintenance and cleaning.
More districts for HVAC design
Other services in Al Nuzha
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.
I own a small hotel in Al Nuzha, how is the design different from a residential villa?
Hotels need continuous cooling all day, and heat load includes guest numbers, lighting and equipment. We calculate much higher loads and select robust units with advanced controls.
Closely built buildings in Al Nuzha limit outdoor unit space, how do we handle this?
We study alternative rooftop, side wall or parking locations, select appropriately sized high-efficiency units, and may use multiple smaller units instead of one large one.
I have a commercial office in Al Nuzha with fixed working hours, can we reduce electricity use?
Yes, we design systems with temperature control by working hours, and you may benefit from night cooling when air is cooler to reduce main unit use.
Al Nuzha is near the sea, does this affect material and system choice?
Yes, coastal humidity increases corrosion and mould. We select salt-resistant units and ducts, and design a strong condensation drainage system.
