Full preventative service: coil clean, filter replacement, drain flush, gas pressure check and electrical torque test. In Montecasino Precinct this is luxury gated estates work on midwall split systems, attended within about 60 minutes of dispatch.On Dunham-Bush equipment specifically — industrial chillers, fan coils and commercial hvac plant — the faults we see most in Montecasino Precinct are chiller evaporator fouling and oil return problems on long pipe runs.Every visit starts with a full diagnostic and a written quote before any part is fitted.Precinct permits and after-hours-only work in public areas. Aircon Repairs & Servicing bookings in Montecasino Precinct are logged against Block 12 so we can allow for power availability on site.

Typical response window
60 minutes from Fourways & Northern Suburbs
Distance from Sandton CBD
12.9 km
Municipal water hardness
hard (185 ppm)
Load-shedding schedule
Block 12
Access & compliance
Precinct permits and after-hours-only work in public areas.
Typical installed systems
High-volume restaurant refrigeration, coldrooms and central HVAC.

Refrigerant data

GasClassificationSuction pressureDischarge pressureTypical use
R410aHFC blend (A1)280-320 kPa at 7 degrees C evaporating2 600-3 000 kPa at 45 degrees C ambientMost inverter splits, ducted systems, VRV/VRF and heat pumps installed since 2005.
R32HFC (A2L, mildly flammable)300-340 kPa at 7 degrees C evaporating2 700-3 100 kPa at 45 degrees C ambientCurrent-generation inverter splits and heat pumps.
R22HCFC (phased out)480-520 kPa at 7 degrees C evaporating1 700-2 000 kPa at 45 degrees C ambientLegacy splits and ducted plant installed before the phase-out.

Common questions

Can you work after trading hours?

Yes. Retail, restaurant and office work is routinely scheduled at night or early morning under a permit-to-work so trading is not interrupted.

Is a compressor replacement guaranteed?

Yes. Replacements are done with a system flush and new drier, and both part and workmanship are warranted, provided the original cause of failure is corrected.

How fast can you get to me?

Emergency callouts are dispatched to the next available technician, with the arrival window confirmed by SMS when the vehicle leaves.

Do you top up gas without finding the leak?

No. A weighed charge into a leaking system is money out the window, so the leak is found and repaired first, then the system is evacuated and charged to the plated weight.

Request a callout or quote

Send it straight to our WhatsApp for the fastest response, or call 069 268 0988 / email info@reyds.co.za.