From a single inverter split that actually reaches the corner room to a full ducted retrofit in an occupied villa, we run the load calc before we sell the unit.
Family-run since 2009. Manual-J load calc on every install. Refrigerant lines brazed (not flared and prayed over), evacuated to spec, leak-tested before commissioning. The unit you order is the tonnage your house actually needs.
Coolair started in 2009 with a single Suzuki van and a senior tech named Naveed Hussain who had spent eighteen years on commercial chiller plants and decided he could build the same discipline into residential splits. The rule: never sell a tonnage you cannot back with a load calc.
Today we run nine vans across Karachi, Hyderabad, and DHA City. Naveed still does the commissioning walk-through on every ducted job himself.
Cameras and pressure tools, not guesswork.
Clear pricing before any wrench turns.
From a midnight pipe burst to a planned commercial re-pipe — one number, one accountable team.
Manual-J sizing, copper line set brazed and pressure-tested, condensate routed to drain (not just the wall). Outdoor unit on a vibration pad, neat conduit. Filter swap and gas top-up free in year one.
Fully ducted retrofit on occupied buildings — supply runs in soffits, return air sized properly, manual-D duct design. We coordinate with your false-ceiling contractor or run point ourselves.
For multi-zone homes and small offices where you need independent control room-by-room. Engineered, programmed, commissioned with a printed report.
Two visits a year (pre-summer / pre-winter). Coil deep-clean with foaming wash, refrigerant pressure check, filter swap, drain pan flush, electrical termination check.
Median arrival 90 minutes across Karachi. Genuine refrigerant only — never blended, never topped off without finding the leak first. Quote before we open the gas can.
Stand-alone HEPA filtration, energy-recovery ventilator (ERV) installs, basement dehumidification. We measure CO₂ and PM2.5 before recommending — no upselling.
Three vendors quoted me 4-ton splits in every bedroom. Coolair ran a load calc, sized 1.5-ton inverters, and the rooms are colder than my brother's house with the bigger units. Bills are half.
Our cassette unit died on a Saturday during a board meeting. They had a tech on-site within the hour, found a contactor failure, replaced it, and we were back online before tea break.
I will not run a ducted job without Coolair on the manifold. Their duct sizing is the only reason my clients' upstairs rooms cool the same as the lounge.
Talk to a live dispatcher. We confirm a window before we roll, and you'll get a name and photo of the tech on their way.
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