Central AC, start to finish
Central AC installation in Harat Al Mazloum
Central AC installation in Harat Al Mazloum in old downtown faces the constraints of traditional construction and tight spaces. Alrabih designs the system to fit the older building layout and executes it with flexible methods to ensure a working system from day one.
- Design and build
- Own-workshop ducts
- Full commissioning
Clients We're Proud to Serve
Organisations and companies that trusted Alrabih with their projects.
Who needs a complete central system?
- 1
A new villa before finishing
The finishing stage is the right time to run central AC ducts before the ceilings close. Delaying the decision means extra cost later or compromises in the duct route that weaken airflow in certain rooms.
- 2
A commercial or office building
A commercial building needs airflow that fits how the floors are divided and how the load varies between levels. The site survey sets unit count, duct routes and outlet positions before any decision is made.
- 3
An old system draining power
Old units, deteriorating ducts and leaking copper push the electricity bill up without cooling the space properly. Replacing the whole system starts with a fresh load calculation, not with larger units pushed into the same old ductwork.
Who it's for
Building a villa and need ducts before ceilings close
We visit during the finishing stage, design duct routes and outlet positions, fabricate the ducts in our workshop and install them before the ceilings close, so you take over a fully working villa.
Ask on WhatsAppManaging a commercial building and replacing an old system
We recalculate the loads, design airflow to match the current floor layout and replace both units and ductwork completely so the system runs reliably without repeated faults.
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What the contract covers
- Load calc and system design
- Units from authorised distributors
- Duct fabrication and fitting
- Insulated Mueller copper runs
- Full commissioning and handover
How we work
How we work
- 1
Survey and load calculation
The engineer visits, measures each zone, and calculates the thermal load per area, accounting for facade orientation, ceiling height and how the space will be used in Jeddah's hot and humid conditions.
- 2
Design and unit selection
We draw duct routes and outlet positions and select units from Carrier, YORK, General, Midea, Gree or Smart Gold, then present the design to you before any work begins.
- 3
Fabrication and installation
Round and rectangular ducts are fabricated in our workshop from G90 galvanised sheet to SMACNA standards, then installed on site alongside the copper runs, insulation and electrical connections.
- 4
Commissioning and handover
We pressure-test the copper lines, vacuum them, check air balance at every outlet and condensate drain fall, then hand the system over to you in full working order.
One contractor or several parties?
| Alrabih | The usual way | |
|---|---|---|
| Design and build | One party accountable | Designer and installer split |
| Ducts | Our workshop, G90 standard | Unmonitored outside suppliers |
| Copper | Mueller up to 30 metres unwelded | Unknown source, many joints |
| Commissioning | Pressure test, vacuum, air balance | Straight power-on, no testing |
| Insulation | Armaflex and Kimmco fitted | Patchy or missing |
Everything your AC needs, from one team
From system design and duct fabrication to installation, commissioning and 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
Harat Al Mazloum has older residential blocks with high ceilings and thick walls, with shops on the ground floors. Spaces are tight and exterior streets narrow between closely built blocks, limiting outdoor unit placement and requiring short, precise copper runs. Coordination with building and shop owners is essential to schedule the visit, find the best equipment access route, and confirm the custom duct path.
Harat Al Mazloum sits in Jeddah's historic downtown, an older zone of residential blocks with shops and narrow, close-set streets.
Most older blocks here have high ceilings but lack horizontal voids for unified ducts, and outdoor units mount in tight spaces on external walls or small balconies.
The AC setup in Harat Al Mazloum
- 1
Metal ducts on the roof or balcony
In tight older buildings, we run ducts across the flat roof or mount them on external balconies with full thermal insulation.
- 2
Insulated flexible pipes along interior walls
When rooftops are not an option, we run foam-insulated flexible pipes along interior walls to each room.
- 3
Single outdoor unit in confined space
The outdoor unit mounts in the smallest available space on an external wall or tiny balcony, needing no side yard.
Before the visit
Before our visit in Harat Al Mazloum
- 1
Coordinate with building management and flat owners
Tell building management about the visit and expected installation time, and coordinate with neighbouring flats if ducts will cross shared walls.
- 2
Confirm access to the roof and external balconies
Check that the team can reach the roof and balconies safely, and there are no restrictions from building management.
- 3
Identify the nearest parking and equipment entry point
Harat Al Mazloum's streets are narrow, tell us the nearest spot for the van and the easiest stairway or passage for moving parts.
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FAQ
Questions about Central AC installation
How do you decide the right unit size for my villa?
We calculate the thermal load for each zone based on its area, ceiling height, number of external openings, orientation and how it will be used. In Jeddah the sun's effect on west-facing facades is significant, and high humidity goes into the calculation. We choose the unit size after this calculation, not before.
Do you make the ducts yourselves or buy them ready-made?
We fabricate round and rectangular ducts in our own workshop from G90 galvanised sheet or aluminium sheet depending on what the project needs. This lets us cut ducts to the exact site dimensions and fit them tightly, avoiding ill-fitting sections that leak air and raise electricity consumption.
What if the copper run to an outdoor unit is very long?
We use Mueller copper in runs of up to 30 metres without welded joints, which reduces potential leak points. If a run exceeds that, the survey determines whether the outdoor unit position needs rethinking or whether the refrigerant charge needs adjustment according to the type shown on the unit's nameplate.
Can each floor of the villa run on its own?
Yes, and it is settled at the design stage. Each floor can have its own unit, or the network can be split into zones with dampers and a thermostat in each, so you do not cool the whole upper floor while the family sits in the majlis. We recommend the right option after the load calculation.
Do the outdoor units need a special base on the roof?
Yes, and the roof surface determines what kind of base is needed. For villas we fabricate a raised steel frame that keeps the unit clear of pooled rainwater and allows airflow beneath it. The exact height and angle depend on the roof pitch and the condensate drain position, which the site survey establishes. The aim is to keep the unit level and to prevent vibration movement during operation.
The old building has no space for ducts, how do you install a central system?
We design ducts for the roof or run insulated pipes along interior walls, choosing the least disruptive route, so there is one indoor unit feeding the whole flat.
The streets and stairways are very narrow, how do you get the equipment and parts to the flat?
Our team carries parts by hand up the stairs, splits the outdoor unit if needed, and ducts are either made on the roof or brought up piece by piece.
Humidity and salt from the sea, do the copper pipes corrode quickly?
Genuine copper pipes withstand coastal humidity, but we insulate them thickly to reduce condensation and corrosion, and use stainless steel fittings.
The old building's electrical supply is weak, can we still install central AC?
We inspect the main switchboard and total capacity first, and if insufficient we recommend upgrading the circuit or increasing supply capacity with the utility before installation.
