Ducted Air Conditioning Systems
Ducted systems condition air centrally and distribute it through a network of ducts and diffusers, giving a completely concealed finish with no visible indoor units. Rooftop packaged units combine the compressor, coil and air handling in a single weatherproof cabinet mounted on the roof, ideal for retail floors, office suites and commercial buildings that want a clean ceiling with no exposed equipment.
Key Features
Concealed Finish
No visible indoor units: only discreet diffusers and grilles at ceiling level.
Zoned Control
Motorised dampers allow different areas to be conditioned independently from one system.
High Airflow Capacity
Handles large conditioned air volumes for open-plan and multi-room layouts.
Fresh Air Integration
Can incorporate outdoor air intake for ventilation compliance in one system.
Rooftop Package Options
Self-contained rooftop units simplify installation on single-storey commercial buildings.
Benefits
Typical Applications
Available Capacities
Optional Accessories
Available Models
LG 36,000 BTU Ducted
Manufacturer: LG. 36,000 BTU/hr ducted split system. Indicative price: KES 309,500. Supplied and installed by Frosten. Request Quotation
Brands We Supply
Installation Options
Preventive Maintenance
Warranty
Manufacturer parts and compressor warranty of 1–5 years depending on brand; Frosten warranty covers ductwork fabrication and installation workmanship.
Industries Served
Typical Installation Cost
From KES 180,000
This is Frosten's published starting rate for ducted AC installation in Nairobi. It covers a basic single-zone concealed system; your final quotation depends on:
- Capacity and number of zones
- Ductwork routing and length
- Grilles and diffuser layout
- Ceiling works and concealment
- Controls and zoning
- Electrical requirements
- Site access and building type
- Commissioning
Indicative costs vary according to site conditions and equipment selection, and final pricing is confirmed after we assess your installation requirements. Request a free quotation for a project-specific price. See our full AC installation cost guide for a breakdown by system type.
Why Choose Frosten
Professional Installation
100% in-house delivery, no subcontractors, from design through commissioning.
Preventive Maintenance
Documented maintenance plans sized to your equipment and site.
Genuine Spare Parts
Parts sourced through authorised brand channels, not grey-market substitutes.
Qualified Technicians
Trained, accountable in-house engineers, the same team from survey to aftercare.
Fast Response
24/7 breakdown response across our service footprint.
Warranty Support
Manufacturer warranty backed by Frosten's own workmanship guarantee.
Frequently Asked Questions
How is a ducted system different from a VRF system?
A ducted system typically uses one or a small number of air handling units distributing air through ducts to many rooms; VRF uses multiple individually-controlled indoor units connected to shared outdoor condensers. Ducted suits uniform open areas, VRF suits many independently-controlled rooms.
How much ceiling void do I need for ductwork?
As a rule of thumb allow at least 250–350mm of usable void, though this depends on duct sizing, diffuser type and any crossing services; confirmed during design.
Can a rooftop package unit be installed on any building?
It needs a structurally sound roof or curb capable of carrying the unit's weight and a route for ductwork or direct discharge into the space below; assessed during site survey.
