Ceiling cassette air conditioning in Isleworth
Cooling and heating for offices, shops and hospitality venues in Isleworth, with a free site survey and a fixed written quote.
- Free site survey and fixed written quote
- Unit sizes, refrigerant and price set out in writing
- Work planned around your opening hours
How much does a ceiling cassette cost in Isleworth?
Our guide range in Isleworth is £2,750–£6,350 per cassette before VAT; a typical job (shop or restaurant with 2–3 cassettes) is £6,350–£17,295 plus VAT. Your exact price is fixed in writing once we have surveyed.
A ceiling cassette is an air conditioning indoor unit that sits inside a suspended ceiling with only a square grille visible.
Working in Isleworth
Isleworth sits within London's dense commercial fabric: shopfronts, offices above, studios and venues, where outdoor unit positions and access need careful planning.
We work across Isleworth's postcode districts, including TW7. We also cover Hounslow, Heston and Richmond, all within easy reach of Isleworth. We plan installations in Isleworth so the noisy work — core drilling, ceiling access, lifting plant — happens when it disturbs your business least.
What the job covers
- Survey of the ceiling void depth and grid
- Pipework, condensate pump and drain connection
- Fresh-air spigot connection where ventilation ductwork is available
- Wired controller or central control
- Commissioning and F-gas records
Local guide prices for Isleworth
Guide prices for Isleworth, set for London. Your fixed price comes in writing.
| Item | Guide price (ex VAT) | Inc VAT | Basis |
|---|---|---|---|
| Compact 600 mm cassette (up to about 5 kW) | £2,750–£5,050 | £3,300–£6,060 | per unit |
| Full-size four-way cassette (7–14 kW) | £3,795–£6,350 | £4,554–£7,620 | per unit |
| Ceiling tile and grid alterations | £120–£505 | £144–£606 | per unit |
| Fresh-air spigot connection | £245–£760 | £294–£912 | per unit |
Ex VAT, supply and install on a single or multi-split system.
The steps for a project in Isleworth
Check the void
We confirm void depth, grid size and any obstructions such as beams, sprinkler pipes or ductwork.
Set positions
Cassettes are placed against the lighting and grid layout so air reaches the whole space.
Hang and connect
Units are hung on drop rods, connected to pipework and the condensate line. We keep work areas in Isleworth screened and tidy at the end of each day.
Test and commission
The condensate pump is water-tested, the system pressure tested and charged, and air directions set.
Before you book in Isleworth
Condensate
Most cassettes include a pump. The discharge still needs a route to a drain, which we design at survey.
Conservation areas
Historic streets and listed buildings in and around Isleworth are more likely to need planning permission for outdoor units on visible elevations. We check with the local planning authority before work is booked.
Void depth
Compact cassettes typically need around 250–300 mm of clear void; larger units need more. We measure before quoting.
Working hours
Most Isleworth businesses prefer noisy work outside trading hours. Early starts, evenings and weekends can be arranged and are priced up front.
Typical premises in Isleworth
- Restaurants and cafés: dining rooms that stay comfortable next to a hot kitchen and a busy service.
- Offices: zoned cooling and heating for open-plan floors, meeting rooms and comms rooms.
- Healthcare and dental: clean, quiet cooling for surgeries, clinics, dental practices and care settings.
- Salons and spas: comfortable salons and treatment rooms despite dryers, lamps and steam.
Two rules matter for most businesses in England: GB F-gas rules (leak checks from 5 tonnes CO2e) and the periodic energy inspection for more than 12 kW of air conditioning.
Common questions from businesses in Isleworth
How much does a ceiling cassette cost in Isleworth?
Guide prices in Isleworth run from about £2,750 to £6,350 per cassette, plus VAT. A typical job (shop or restaurant with 2–3 cassettes) costs £6,350–£17,295 plus VAT. We fix the price in writing after a free survey.
Do you also cover Hounslow, Heston and Richmond?
Yes. Alongside Isleworth, we also cover Hounslow, Heston and Richmond. Each has its own page with local guide prices.
Which postcodes do you cover in Isleworth?
All of them, including TW7. Give us your postcode when you enquire and we will confirm the visit details.
Do I need a suspended ceiling for a cassette?
Yes, or a ceiling void with access. In solid ceilings a wall-mounted or ducted unit is usually the better option.
How noisy are ceiling cassettes?
At normal fan speeds modern cassettes are quiet enough for offices and restaurants. We select fan speeds and unit sizes so they are not working flat out.
Get a guide price for Isleworth
Free survey and fixed written quote. We reply with a guide price or to book the survey.