Window unit to split
Window-to-split conversion in Al Mahjar
In Al Mahjar, south Jeddah, converting from a window unit to a split system reclaims your window and cuts noise and heat seepage. We seal the window opening with blockwork, plaster, insulation and paint, then install a new split through its own small core hole.
- 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
Al Mahjar is a spacious residential district with villas and mid-rise apartment blocks with adequate spacing between buildings, and many of the older units still rely on window AC. Conversion to split suits these buildings because it saves facade space and eliminates the noise that disturbs neighbours in adjacent flats, and the distances between buildings allow our team safe access and equipment placement.
Al Mahjar is in south Jeddah, a spacious residential zone of villas and mid-rise blocks with reasonable spacing between buildings.
Most of the older residential units here have window ACs installed in exterior windows facing the street or back courtyard.
The AC setup in Al Mahjar
- 1
New split with dedicated air outlet
After sealing the window opening, we install a compact modern split indoor unit with copper lines running through a small hole no larger than three inches in the wall.
- 2
Secure architectural seal with thermal insulation
The old opening is sealed with blockwork, plaster, thermal insulation and paint, which improves insulation efficiency and gives the facade a uniform architectural finish.
- 3
Outdoor unit on a safe, easy-access location
We select a safe, accessible location for the outdoor unit based on the villa or building layout, making routine maintenance and cleaning straightforward.
Before the visit
Before our visit in Al Mahjar
- 1
Tell us about your old window unit
Send a photo or short video of the window unit location, the window itself and surrounding walls so we can estimate the opening size and best outdoor unit placement.
- 2
Ensure the team can safely access the exterior wall
Confirm that the exterior wall or roof selected for the outdoor unit can be reached safely without obstacles or hazards before the visit date.
- 3
Check if any walls are shared with neighbours
If the exterior wall is shared with an adjacent villa or flat, confirm there are no legal or architectural restrictions before conversion.
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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 closing the window opening affect the room's light?
No, we seal the opening permanently and safely, but the window itself remains and still lets in natural light and air just as it did before the window unit was fitted.
Our villa facades are quite wide, where do you place the outdoor split unit?
The spacing between villas gives us multiple options for the outdoor unit, either on a side wall, back wall or the garage roof, and we choose the best spot during the first visit.
Summer heat in Al Mahjar is intense, will the new split handle it?
We select units with cooling capacity matched to the room size and solar exposure typical of Al Mahjar, and modern split systems are designed to handle Jeddah's high summer temperatures.
Does the outdoor unit's water drainage need piping work?
The outdoor unit typically needs no complex drainage since condensate evaporates, but if the site requires drainage we choose the best solution during the visit based on ground slope and distance from the building.
