Ceiling Cassette AC Cleaning, Repair and Installation

Ceiling cassette (four-way split) units are recessed into the ceiling for even air distribution — common in offices and retail spaces. Learn about cleaning prices, repair inspection, and installation.

When this service is suitable

Ceiling cassette air conditioners are recessed into the ceiling and distribute conditioned air in four directions, making them suited to commercial spaces requiring even cooling. Filter maintenance, drainage and unit operation are the key service concerns. Cleaning is priced by number of units with a published starting price; repair and installation are inspection-first, quote-after.

  • Cleaning is priced from a published starting price per number of units
  • Ceiling height, access panels and protective arrangements are confirmed before work begins
  • Repair and installation are inspection-first, quote-after; no advance guarantee of outcome

Cleaning

Cassette cleaning covers all removable components and heat exchange surfaces, drain flushing, and a post-clean test run. Protective covers are laid before work begins based on the ceiling position. Kärcher high-temperature steam cleaning is available as an add-on. Published starting prices are listed by unit count.

  • Pre-clean inspection and operational check
  • Protective covering of surrounding area based on ceiling position
  • Clean removable components, filters and vent areas
  • Flush the drain and carry out a test run
  • Optional Kärcher steam cleaning add-on available

Repair and Fault Inspection

Common cassette AC issues include uneven cooling, odour from the vents, dripping water and unusual noise. Repair is inspection-first, quote-after: the technician assesses the unit position and fault before explaining findings and confirming a course of action.

  • Uneven airflow: assess the fan and vent panels
  • Dripping: assess drain pipe, drain pan and installation
  • Noise or odour: evaluate components and filter condition
  • Weak cooling: rule out filter blockage before assessing parts and refrigerant
  • Repair confirmed and quoted only after on-site inspection

Installation and Removal

Cassette AC installation requires confirming the ceiling structure, refrigerant pipework routing, and drainage. Installation is site-review-first: the technician assesses conditions before proposing a plan and quote.

  • Confirm ceiling structure can support the unit weight
  • Route refrigerant pipework and insulation
  • Ensure the drain pipe maintains a continuous downward slope to prevent dripping
  • Schedule work based on the premises' operating hours
  • Post-installation test run to confirm airflow from all four vents

Price and quote factors

  • Number of units and location: multiple cassette units at one site can be scheduled by work sequence
  • Ceiling height and access: high or restricted access requires a preliminary method assessment
  • Repair scope: fault cause determines the work needed; a quote is only given after on-site inspection

Frequently asked questions

How often should an office cassette AC be cleaned?

It depends on operating hours, dust levels, and any changes in odour or airflow. High-usage offices may benefit from scheduled inspections, with cleaning frequency adjusted to the level of build-up found.

What if there is still an odour after cleaning?

Persistent odour after cleaning may relate to mould in the drain pipe, accumulated debris in parts, or another issue. A fault inspection (inspection-first, quote-after) is recommended to confirm the cause.

Can cassette AC cleaning be scheduled outside business hours?

Yes. Office and retail cassette cleaning can be arranged during off-peak hours. Mention the premises type and preferred service window when booking.

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