tamam covers Sharjah City for ac maintenance the same way it covers every UAE community: multiple vetted vendors, AED ranges you can see up front, and booking that takes a couple of taps.
Download the appBook on WhatsAppIn Sharjah City, the difference between a smooth ac maintenance visit and a wasted afternoon usually comes down to whether the vendor has worked the area before.
Demand here is high, so slots move quickly — booking a day ahead usually gets you the window you actually want. Budget roughly 1–3 hours on site for ac servicing, plus a little for access if the building has a lift protocol.
Scheduled service: filters, coils, drainage, gas check.
Refrigerant is not fuel. It circulates in a sealed loop and is never consumed, so a unit that needs gas has a leak — full stop. The honest version of a regas visit: find the leak with a detector or nitrogen pressure test, repair it, pull a vacuum on the lines, then weigh in the exact charge printed on the nameplate. The dishonest version is a hose, a cylinder, and see-you-next-summer. If you have paid for top-ups two years running, you have paid twice for one unfixed leak.
The gas itself matters. Older UAE units run R22 — the gas everyone still calls freon — which is being phased out under the Montreal Protocol; imports are restricted and the shrinking supply gets pricier every year, so regassing an old R22 unit can cost a startling share of its remaining value. Most systems from the last decade use R410A, and newer machines increasingly use R32, more efficient but mildly flammable. The gases are not interchangeable: R410A runs at much higher pressures than R22, so you cannot refill an old system with new gas. When a technician says an ageing R22 unit with a leaking coil is not worth repairing, the arithmetic usually supports them.
A surprising share of no-cooling complaints end at the thermostat. In chilled-water flats the stat controls the blower speed and an actuator valve that lets chilled water into the coil. Actuators stick and their small motors burn out, leaving a fan blowing room-temperature air over a dry coil — which feels exactly like a broken AC and costs a fraction to fix. In DX systems, a drifted sensor can make the compressor short-cycle on and off every few minutes, the fastest known way to shorten its life. Placement causes phantom faults too: a stat on a wall backing a west-facing exterior reads hot and overcools the flat, and dying batteries produce random behaviour that gets misdiagnosed as everything else first.
A note on smart thermostats, the most common upgrade request: many imported models are built for 24-volt North American systems, while UAE fan coil units typically switch 220 volts directly. Fitting the wrong one is a fire question, not a compatibility question. Proper 220V smart stats for FCUs and Gulf-market splits exist — specify one, and treat installation as electrician-grade work rather than a DIY afternoon.
That musty, gym-bag smell when the AC first kicks on has a specific cause: biofilm. Fine dust that gets past the filter lands on a coil and drain pan that stay wet for six months of the year, and the mixture grows mould and bacteria. The smell is the mildest symptom — black dust streaks around supply vents and indoor allergy flare-ups point the same way, and in a country where people live sealed indoors from May to October, indoor air quality is not a luxury concern.
Duct cleaning and coil cleaning are different jobs; know which you are buying. A chemical coil wash treats the wet heart of the unit — evaporator, blower wheel, drain pan — and fixes most smells; it earns its keep annually. Duct cleaning treats the tunnels: proper firms use rotating brushes or air whips to agitate dust and a negative-pressure vacuum to extract it, section by section. A man with a household vacuum and a torch is redistributing your ducts' contents, not cleaning them. Honest frequency is boring: every two to three years, sooner after renovation (gypsum dust is ductwork's worst enemy) or when moving into a flat with unknown history. Anyone insisting every home needs it every six months is selling frequency, not hygiene.
If you would rather not use the app, message tamam on whatsapp and a coordinator will arrange a vetted vendor in Sharjah City for you.
Trade licences are checked against the issuing municipality, not self-declared, and insurance has to be current for a vendor to stay listed.
ac servicing generally falls in the AED 150–700 band. Comparing several verified vendors on the same job description is what stops you overpaying.
As a rough guide for ac servicing: full villa service, 3–5 units around AED 350–700; chemical coil wash (deep clean, per unit) around AED 200–400; thermostat replacement, including standard part around AED 150–350.
What you finally pay depends on the vendor and tier you choose — all of it visible before booking.
Refrigerant does not deplete in a sealed system, so a top-up without finding the leak is renting the same repair annually. Insist on a leak test and a written note of gas type and quantity added. Two top-ups in two years is proof of a leak nobody looked for.
Ice is a symptom of airflow or refrigerant trouble, and running the unit frozen strains the compressor while the melt can flood the drain pan. Chipping ice bends the soft aluminium fins and can puncture the coil, converting a cleaning job into a major repair. Thaw on fan-only mode and diagnose the cause.
On a ducted system, closed supply vents raise static pressure in the ductwork rather than saving money: airflow across the coil drops, icing risk rises, and the blower strains. If a room genuinely never needs cooling, the right answer is a damper adjustment at the unit or a zoning setup, not a shut grille.
No. Refrigerant circulates in a sealed loop and is never consumed, so needing gas means there is a leak. A proper visit finds and repairs the leak, vacuums the lines, and weighs in the nameplate charge. Annual top-ups mean you are paying repeatedly for one unfixed fault.
Everything on your side of the wall: the fan coil unit's blower, the actuator valve, the thermostat, filters, coil cleanliness and the drain pan. The temperature of the chilled water arriving from Empower, Tabreed or the building plant is outside their control, so if the FCU checks out and cooling is still weak, the next call is to facilities management.
That smell is biofilm — mould and bacteria growing on a coil and drain pan that stay damp for months, fed by fine dust. It is the most common indoor air complaint in the UAE and a chemical coil wash resolves most cases. If black dust also appears around the vents, add a duct inspection.
It is urgent rather than dangerous: the condensate drain is blocked and the pan is overflowing, and the water will find your ceiling or walls. Switch the unit off to stop new condensate forming and book a drain flush. In apartments, note that a ceiling stain may come from the upstairs neighbour's unit rather than yours.
Compare like with like: ask exactly what the visit includes, since a filter rinse and a full service with coil wash, drain flush and written readings can carry the same label. Seeing several verified vendors' AED ranges side by side in the tamam app shows you where the market sits, and an outlier in either direction deserves questions.
We cover Sharjah City and the surrounding Sharjah communities. Message on whatsapp if you want a specific time confirmed first.
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