Own staff, not subcontractors Call +971 50 898 2644 info@mrtechnicalservices.ae Sat–Thu 08:00–20:00
AC repair & servicing in Dubai

Cooling that fails in August was failing in May

Weak cooling, water dripping from the indoor unit, a compressor that trips the breaker. We service and repair Daikin, O General, Gree and Carrier.

  • Same-day callout
  • Split, ducted and cassette
  • Written quote before we start
HVAC certifiedRefrigerant handling
Same-day calloutBook before 3pm
90-day warrantyOn workmanship
All systemsSplit, ducted, cassette, FCU
What we fix

Recognise any of these?

Six faults account for most AC callouts in Dubai. Each has a likely cause worth knowing before anyone quotes you.

Blowing warm air

Usually low refrigerant from a slow leak, a dirty condenser coil, or a failing compressor. Topping up gas without finding the leak means you pay again in three months.

Water dripping inside

A blocked condensate drain line, nine times out of ten. Left alone it soaks the ceiling gypsum below and turns a small job into a repaint.

Tripping the breaker

A short in the compressor windings, a failed capacitor, or a circuit carrying more than it was rated for. Worth switching off until checked.

Weak airflow

Clogged filters and a fouled evaporator coil. Common in Dubai because fine dust gets past filters that have not been cleaned since installation.

Short cycling

The unit starts and stops every few minutes. Often an oversized unit, a faulty thermostat, or refrigerant pressure that is off.

Loud or rattling

Loose fan blades, worn bearings, or mountings that have vibrated free. Cheap to fix early, expensive once the fan motor is damaged.

Scope of work

What a service actually includes

Worth comparing against any other quote you have. AC servicing means very different things depending on who is saying it.

Included in the service

  • Full chemical wash of evaporator and condenser coils
  • Filter clean or replacement
  • Condensate drain line flush and test
  • Refrigerant pressure check against manufacturer spec
  • Electrical connections, capacitor and contactor check
  • Thermostat calibration and airflow test
  • Written report on the unit condition

Quoted separately

  • Refrigerant gas itself, if a top-up is needed
  • Replacement compressors, fan motors or PCBs
  • Duct replacement or new ducting runs
  • Building NOC fees, where a tower requires one

Nothing here is charged without your approval first. If we open a unit and find a failed part, you get a price before we continue.

Systems we work on

Which type do you have?

Knowing this before you call saves a conversation. If you are not sure, send a photo of the indoor unit and we will tell you.

Wall-mounted split

The common apartment unit. An indoor box on the wall, a condenser outside on a balcony or roof.

Service time45-90 min
IntervalTwice a year
Common faultBlocked drain

Ducted / concealed

Hidden above a false ceiling, feeding several rooms through grilles. Standard in newer villas and offices.

Service time2-3 hours
IntervalEvery 3-4 months
Common faultDuct dust load

Cassette

Square ceiling-mounted unit blowing from four sides. Usual in retail units, clinics and meeting rooms.

Service time60-120 min
IntervalEvery 4 months
Common faultDrain pump failure

Chilled water / FCU

Fed by a central district cooling plant. You have a fan coil unit and a thermostat, not your own condenser.

Service time60-90 min
IntervalTwice a year
Common faultValve & coil fouling
Brands we service and installParts sourced through authorised UAE suppliers, with the manufacturer warranty passed to you in full.
DAIKINO GENERALGREECARRIERLGSAMSUNGMIDEASUPER GENERAL
Simple process

How It Actually Goes

You will know the price before anyone picks up a tool.

01 First step

Send a photo

WhatsApp is fastest. Most repairs we can price straight off the photo.

02 Second step

We come and do it

The right trade, with the right parts already on the van. Floors covered before the toolbox opens.

03 Third step

Look at it, then pay

Walk round the finished work with the technician while he is still there. Warranty starts that day.

Worth understanding

Why air conditioners fail faster in Dubai

A split unit that would last fifteen years in a temperate climate often starts giving trouble here at year six.

Runtime

The run hours are roughly double

A manufacturer service interval assumes a cooling season of three to four months. In Dubai it runs March to November, and in many apartments the AC never fully switches off.

8-10 monthsof runtime a year, against the four the service schedule assumes
Dust

The dust load is the real killer

Fine desert dust passes straight through basic mesh filters and settles on the evaporator coil, where condensation bakes it onto the fins.

1-2 monthsthe DEWA bill rises before the room actually feels wrong
Humidity

A blockage becomes a ceiling repair

Humidity means these units pull a lot of water out of the air, all of it leaving through one narrow condensate drain.

#1most common AC callout we get
Salt air

Corrosion near the coast

Marina, JBR, Jumeirah and Palm sit in salt-laden air that eats the condenser aluminium fins and copper.

10 kminland is a genuinely different service need
Sizing

Oversizing nobody mentions

Bigger cools faster, and that is the problem. It hits the setpoint before it has run long enough to dehumidify.

Start-upis where most compressor wear happens
Repair or replace

When a unit stops being worth fixing

If the unit is over ten years old and the repair costs more than about a third of a replacement, replace it. Older units also run R22 refrigerant, now being phased out.

10 yrsover ten years old and repair above a third of replacement cost means replace
When a new unit is the cheaper answer
Repair or replace

When a new unit is the cheaper answer

Past a certain age, repair stops being economics and starts being postponement. Older units also run R22 refrigerant, now being phased out, so a gas top-up gets harder and dearer every year regardless of what the compressor is doing. AC installation in Dubai is mostly about the things nobody quotes for: whether the drain line has enough fall, whether the condenser has airflow where it is going, and whether the unit is sized for the room rather than the showroom. An oversized split cools fast, short-cycles, never dehumidifies, and wears out its compressor doing it. We survey before quoting, handle the building NOC, and remove the old unit.

  • Ask about a replacement

Service intervals

How often yours actually needs servicing

The manufacturer annual interval is written for a different climate. This is what we recommend for Dubai properties.

Apartments Twice a year Split units. Before summer, and once during it.
Ducted systems Every 3-4 months Longer duct runs collect more dust.
Coastal property Twice a year + Add a condenser check for salt corrosion.
Villas Before summer Drain lines checked separately mid-season.
Holiday lets Each tenancy Service between guests, not on a calendar.
If your AC needs gas every few months, that is a leak

A sealed refrigerant system does not consume gas. Repeated top-ups are paying for the same unfixed fault over and over.

Book a leak test
Annual contracts

Stop paying for the same fault twice

Most of what we get called out for in July was visible in March. A drain running slow, a coil filling with dust, a breaker running warm. None of it stops you using the flat, so none of it gets fixed, and then all of it fails in the same week. An annual maintenance contract covers scheduled servicing across every trade you actually have, plus minor callouts as they come up. Visits are planned around your building's access rules rather than booked in a panic. It suits landlords with more than one unit, holiday-let operators, and anyone who has worked out that the third emergency of the year costs more than a whole year of planned work.

  • Scheduled visits across every trade
  • Minor callouts included
  • One contract, one point of contact
  • Priority scheduling through summer

AC Repair Across Dubai

No travel charge for any of these. Outside them, ring us and we will tell you honestly whether it is worth the trip.

  • Deira
  • Bur Dubai
  • Al Nahda
  • Al Qusais
  • Karama
  • Satwa
  • Jumeirah
  • Al Barsha
  • Dubai Marina
  • JLT
  • Business Bay
  • Downtown
  • Silicon Oasis
  • Mirdif
  • Sports City
  • Discovery Gardens
  • Al Warqa
  • International City
FAQ

Questions We Get Asked

Twice a year for apartment split units, before summer and once during it. Ducted systems every three to four months because longer duct runs collect more dust. Coastal properties need an extra condenser check for salt corrosion. The manufacturer's annual interval is written for a climate with a four-month cooling season, not an eight to ten month one.

Because there is a leak. A sealed refrigerant system does not consume gas. Repeated top-ups are paying for the same unfixed fault over and over, and the leak usually gets worse. Ask for a leak test rather than another refill.

A blocked condensate drain line, nine times out of ten. Dubai humidity means these units pull a lot of water out of the air and all of it leaves through one narrow pipe. Left alone it soaks the ceiling gypsum below and a drain flush becomes a repaint.

Yes, along with wall-mounted splits and chilled water fan coil units fed by district cooling. If you are not sure which you have, send a photo of the indoor unit and we will tell you.

Yes. We survey first, handle the building NOC, size the unit for the room, and take the old one away. Parts and units are sourced through authorised UAE suppliers with the manufacturer warranty passed to you.

Usually. AC failures go to the front of the queue and a booking before mid-afternoon is normally same-day. Through the middle of summer every competent company in Dubai is running days behind, so call rather than message if it is urgent.

Most of Dubai, including Deira, Bur Dubai, Al Nahda, Al Qusais, Al Barsha, Dubai Marina, JLT, Business Bay, Mirdif and Silicon Oasis, with no travel charge inside any of them.

Opens WhatsApp with the details typed out. Nothing sends until you press send.

Book your service

Tell Us What Is Broken

Fill this in and it opens WhatsApp with the details already written out. A photo attached to it usually saves a survey visit.

  • Sat to Thu, 8am to 8pm
  • Friday from 2pm
  • Reply inside 15 minutes
  • Cash, card or bank transfer
Call Now WhatsApp