Window unit to split
Window-to-split conversion in Petromin
In Petromin, south Jeddah, converting from a window unit to split restores your window and cuts out the noise and heat loss. We seal the opening with blockwork, insulation and paint, then fit a new split with a neat indoor head.
- Sealed opening
- Window restored
- Quiet split
Clients We're Proud to Serve
Organisations and companies that trusted Alrabih with their projects.
Why owners make the switch
- 1
Non-stop noise from the old unit
The window unit motor runs right inside the room, and the vibration gets worse over the years. Many owners say sleeping next to it has become impossible, and switching to a split removes the source entirely.
- 2
The wall opening lets in heat and dust
The foam and tape sealing the gap around a window unit frame degrade in Jeddah's salty, humid air. The large opening becomes a clear source of heat loss, dust in the windy season and sometimes rain in winter.
- 3
The blocked window darkens the room
A window unit fills the whole window or most of it, so the room loses its natural light and ventilation at times when you do not need cooling. Getting the window back fully changes the room noticeably.
Who it's for
Own a villa and want the windows back
We remove the window units from your villa rooms, close each opening with block, insulation and plaster, then fit a split in each room through its own core hole.
Ask on WhatsAppManaging a rental flat and want to raise its value
We convert the flat's window unit to a quiet split and restore the wall and window to their original condition, improving the unit for the next tenant.
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What the conversion covers
- Remove old unit and frame
- Block plaster and insulation
- Paint inside and outside
- New core hole for split
- Insulated copper and drain
How we work
How we work
- 1
Survey the wall and opening
We check the wall thickness and the build around the old opening, agree where the new core hole for the split goes away from the old frame, and decide where the outdoor unit will sit.
- 2
Remove and close
We remove the window unit and its frame without breaking the surrounding wall, then close the opening with blockwork or lightweight concrete to match the original construction, with thermal insulation set inside the layers before plastering.
- 3
Plaster and paint both sides
We plaster and paint the closed opening on both the inside and outside faces to match the existing wall, leaving no trace of the old opening that could let in air or moisture.
- 4
Fit the new split
We core the agreed spot for the split, run insulated Mueller copper and a drain line with the correct fall, vacuum the line before start-up and test everything with you present.
A proper seal or a quick patch?
| Alrabih | The usual way | |
|---|---|---|
| Closing the opening | Block, plaster and insulation | Foam or a timber board |
| Outside face | Plastered and painted flush | Visible mark or cracks |
| Thermal insulation | Inside wall before plastering | None |
| New split core hole | Chosen away from old frame | Wherever drilling is easiest |
| Outside paint | Matched to existing wall colour | Different colour or unpainted |
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
Petromin is a modern residential district of mid-rise flats and detached villas, many with large windows where old window units block daylight and airflow. Switching to split saves space and comfort, especially since the hot, humid weather makes old foam-sealed openings prone to leaking and rust. Petromin's nearness to the coast means high humidity speeds up the breakdown of insulation around window units.
Petromin is in south Jeddah, a modern residential area of mid-rise and spread-out buildings with large windows.
Most of Petromin's relatively newer flats have old window units in the main windows, as they were the cheaper option when the buildings went up.
The AC setup in Petromin
- 1
Sealing the old window opening
We block the window opening with load-bearing brick, thermal and acoustic insulation, then paint to match the wall finish.
- 2
Separate core hole for split pipes
We drill a separate 65 mm hole next to the sealed window to pass the refrigerant lines, electrical cable and drain hose through.
- 3
Split with coastal humidity resistance
We select units with rust-protective coating and mould-resistant internal parts suited to Petromin's high humidity.
Before the visit
Before our visit in Petromin
- 1
Confirm balcony or facade access
Ensure the balcony or facade where the outdoor unit will mount is safe and can bear its weight.
- 2
Clear the space around the window
Remove any curtains, shelves or plants around the window so the team can work comfortably.
- 3
Choose the paint colour
Decide on the paint colour for sealing the window opening and show the team before the visit day.
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FAQ
Questions about Window-to-split conversion
Do you restore the original window after closing the AC opening?
It depends on what the original opening was. In some rooms the opening was cut into a solid wall with no window frame, so it is fully closed. If the original build can take a window, we discuss that at the survey and tell you what is actually possible in your wall.
Can the old window unit hole be reused as the new split core hole?
The old opening is usually much larger than the small core a split needs, and its position may not suit the copper and drain route. It is safer to close it fully and drill a new hole in the right place, so no hidden gaps remain to let air through or collect moisture.
How do you stop humid salty air coming through the closed opening?
We place thermal insulation inside the wall layers before plastering, and use sealing materials that form a continuous barrier from inside to outside. Jeddah's combination of humidity and salt accelerates the breakdown of any temporary patch, so we treat the closed opening as a new wall section, not a surface repair.
Do I need permission from the building management before closing the opening?
In a rented flat it is wise to check with the owner or management office first, because the work changes the building's outside face. In a villa you own the decision is yours. We explain the full scope at the survey so you can get any approval needed before the work day.
Does the job change if the wall is concrete rather than block?
Yes. A concrete wall needs a different filling method and may require a repair mix rather than standard block. We identify the wall type at the survey and choose the material that bonds solidly with the existing concrete, leaving no hidden gaps for moisture to enter later.
Does fitting the split need major wall changes?
No, we seal the window opening with blockwork and insulation, then drill a separate small hole for the split head beside it. The result is a complete window and clean wall.
Does Petromin's coastal humidity affect the split's efficiency?
The new split is designed for high humidity with a better drain pan than the window unit, but regular coil cleaning prevents mould buildup.
After conversion, does air still get in through the old window opening?
No, we fully seal the opening with blockwork and insulation, then paint it, so no air or dust enters through there.
Where does the outdoor unit go for the split?
We mount the outdoor unit on the balcony or facade next to the window, depending on the best layout for running the pipes and cables safely.
