I have 3 units of different sizes — how is the total price calculated, and is there a discount?
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I live in a house in Voluntari with 3 units: a 9,000 BTU one in the bedroom, a 12,000 one in the living room and an 18,000 one in the downstairs family room, larger because it's an open space. And is there a discount for doing three at once? See current rates on the Prices page.
What is really happening
The fouling mechanism is the same regardless of size — biofilm develops on any evaporator surface above 80% humidity — but an 18,000 BTU unit has a larger cooling coil, so more mechanical pressure-washing time and more detergent used, which justifies the price difference from a 9,000 BTU unit, not an arbitrary fee.
- Inspection: assessing condition and symptoms.
- Service check: checks and measurements appropriate to the unit.
- Cleaning: removing deposits.
- Sanitising: suitable treatment of cleaned surfaces.
The actual scope is confirmed before the visit.
- Mould does not grow below roughly 80% surface relative humidity, but the cold surfaces inside an air conditioner constantly exceed this threshold. [WHO / NCBI Bookshelf, 2009]
- Washing with alkaline detergent, brushing and high-pressure rinsing reduces fungi inside the unit by more than 99%. [Indoor Air, 2023]
What we do on site
- See current rates on the Prices page.
- Discount for the second and third unit in the same visit, for any size.
- Each: sealed double cover, alkaline detergent, adjustable pressure wash of evaporator/roller/pan/hose, sanitising, filters, outdoor unit in place.
- One trip to Voluntari for all three, in a single morning.
What you can do yourself
- Book all units at once — you save on the discount and on time lost with separate bookings.
- Give the exact size (BTU, from the indoor unit's label) at booking, for a price with no surprises.
What NOT to do
- See current rates on the Prices page.
- Do not book separately, on different days, if you can do all three at once — you lose the discount.
Prevention
See current rates on the Prices page.
When to call us
0764 012 943, WhatsApp, Monday–Saturday 08:00–20:00; give us the sizes of the 3 units for the exact total price.
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The information on this page is educational and based on cited sources; it does not replace medical advice. We do not do repairs, installation or refrigerant circuit work.