More discreet than a wall-mounted unit, but requiring far less ceiling void depth than a full ducted system — slim duct air conditioning fits in shallow ceiling voids and delivers conditioned air through a small linear grille. We install slim duct systems in homes and commercial premises across Leicester.
See why homeowners and businesses across Leicester choose Elite Cooling & Heating for slim duct air conditioning.
Slim duct units — also known as low-static pressure ducted units or concealed ceiling units — occupy the space between a wall-mounted split and a full ducted system. The indoor unit body is thin enough to fit within a ceiling void of as little as 200mm depth, making it practical in rooms where a full ducted system's indoor unit (which typically requires 300–400mm) would not fit. One or two short duct runs carry conditioned air from the unit to supply grilles in the ceiling — the only visible elements in the finished room.
Slim duct is a popular choice for high-specification bedroom installations, boutique hotel rooms, residential reception areas and any space where a wall-mounted unit would compromise the interior finish but a full ducted system would involve more disruption than the project warrants. We check ceiling void depth during the survey and confirm whether a slim duct unit can be accommodated — or whether a full concealed system or alternative unit type would be better suited to the space.
Slim duct units are particularly popular in master bedrooms and luxury residential installations where a wall-mounted unit would look out of place but a full ducted system is not needed. The ceiling grille is subtle and easy to overlook in a finished room.
We check your ceiling void depth, confirm slim duct feasibility and plan the duct routes and grille positions. Free, no-obligation survey across Leicester.
Get in TouchMore discreet than wall-mounted, less disruptive than full ducted — the practical middle ground.
Only a slim linear grille in the ceiling is visible — the unit body is completely hidden.
Fits from 200mm void depth — practical in many existing properties with limited ceiling void.
Perfect for bedrooms and reception rooms where a wall unit would affect the interior aesthetic.
Unit operates remotely from the occupied space — only airflow from the supply grille is heard.
Simpler installation than a full ducted system — suitable for retrofit as well as new builds.
Slim duct suits properties and rooms where wall-mounted units are unwanted and full ducted is impractical.
Discreet cooling and heating for master bedrooms without a wall-mounted unit visible from the bed.
Premium residential living rooms where a wall-mounted unit would detract from the interior design.
Concealed air conditioning for formal dining rooms and open-plan kitchen-diner spaces.
Boutique hotel bedrooms and suites where a wall unit would not suit the interior style.
Silent, hidden cooling for home cinema rooms where noise and visual distraction must be minimised.
Discreet installation in listed buildings where wall-mounted units may not be permitted.
Incorporated during renovation when ceilings are open — minimal disruption to finished surfaces.
Director offices and boardrooms where a wall-mounted unit would not suit the boardroom standard.
Void assessment and careful planning before a clean, concealed installation.
We check ceiling void depth, confirm slim duct feasibility and plan the unit and grille positions.
We select the right slim duct unit size and plan short duct runs to the supply grilles.
Unit body fitted in the ceiling void. Supply grille(s) installed flush with the ceiling. Outdoor unit connected externally.
System commissioned and tested. Full handover documentation provided on completion.
We supply and install slim duct units from leading air conditioning manufacturers.
We install slim duct air conditioning throughout Leicester and surrounding areas.
Most slim duct indoor units require a minimum void depth of around 200–250mm. Standard ceiling joists in UK properties are typically 150–200mm, which may be tight — we check the available void depth precisely during the survey, including the space needed for insulation and services.
A single slim duct unit can typically supply one main room and one smaller adjacent room via a branched short duct run. For more rooms, multiple slim duct units would be required, or a full concealed ducted system designed to cover the whole floor.
No — slim duct units are generally quieter in the room because the indoor unit is remote from the occupied space above the ceiling. Only the gentle airflow from the supply grille is heard at room level, which is typically less audible than a wall-mounted unit at the same output.
Yes, though access to the ceiling void is required during installation. In properties undergoing renovation or refurbishment where ceiling finishes are being replaced, slim duct is straightforward. In fully finished properties, careful planning of access hatches or a small section of ceiling is needed — we'll confirm what's required during the survey.
Contact Elite Cooling & Heating for slim duct air conditioning across Leicester and surrounding areas.
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