Ceiling cassette air conditioning in Dartford
Cooling and heating for offices, shops and hospitality venues in Dartford, 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 Dartford?
Budget roughly £2,450–£5,695 per cassette ex VAT in Dartford. For a typical job — shop or restaurant with 2–3 cassettes — expect £5,695–£15,500 plus VAT. The fixed price follows a free survey.
A ceiling cassette is an air conditioning indoor unit that sits inside a suspended ceiling with only a square grille visible.
Covering Dartford and nearby
Businesses in Dartford range from independent shops and restaurants to offices, clinics and warehouses. Basildon is about 22 km away.
We cover every Dartford postcode, including DA1. We also work in nearby Bexley, Swanley and Welling. For ceiling cassette air conditioning in Dartford, the survey looks at where the outdoor unit can go, how pipework will reach the indoor units and whether the electrical supply has capacity.
What you get
- Survey of the ceiling void depth and grid
- Compact 600 mm or full-size cassette selection
- Pipework, condensate pump and drain connection
- Fresh-air spigot connection where ventilation ductwork is available
- Commissioning and F-gas records
Ceiling cassettes prices in Dartford
Prices below include our regional adjustment for the South East (15% above the UK guide).
| Item | Guide price (ex VAT) | Inc VAT | Basis |
|---|---|---|---|
| Compact 600 mm cassette (up to about 5 kW) | £2,450–£4,550 | £2,940–£5,460 | per unit |
| Full-size four-way cassette (7–14 kW) | £3,395–£5,695 | £4,074–£6,834 | per unit |
| Ceiling tile and grid alterations | £110–£455 | £132–£546 | per unit |
| Fresh-air spigot connection | £225–£685 | £270–£822 | per unit |
Ex VAT, supply and install on a single or multi-split system.
How it works in Dartford
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. In Dartford we agree timings around your opening hours.
Test and commission
The condensate pump is water-tested, the system pressure tested and charged, and air directions set.
Before you book in Dartford
Void depth
Compact cassettes typically need around 250–300 mm of clear void; larger units need more. We measure before quoting.
Shared buildings
In multi-let buildings, roof space, risers and plant areas are often controlled by a managing agent. We work to their permits and method-statement requirements.
Ceiling grid
Compact cassettes drop into a 600 mm grid; full-size units need the grid adapting around a larger panel.
Roof and height work
Flat roofs, high walls and atriums need the right access equipment and edge protection. We plan towers, MEWPs or scaffold before the job, not on the day.
Who we work with in Dartford
- Restaurants and cafés: dining rooms that stay comfortable next to a hot kitchen and a busy service.
- Schools and education: classroom cooling, ventilation and IT room cooling, installed in the holidays.
- Retail and shops: comfortable shop floors, stockrooms and entrances, even with the door open.
- Gyms and leisure: high-capacity cooling and fresh air for gym floors, studios and changing rooms.
In England, systems holding 5 tonnes CO2 equivalent of refrigerant or more fall under GB F-gas rules, with regular leak checks and records; buildings with more than 12 kW of air conditioning in total also need a periodic energy inspection.
Common questions from businesses in Dartford
How much does a ceiling cassette cost in Dartford?
Guide prices in Dartford run from about £2,450 to £5,695 per cassette, plus VAT. A typical job (shop or restaurant with 2–3 cassettes) costs £5,695–£15,500 plus VAT. We fix the price in writing after a free survey.
Do you also cover Bexley, Swanley and Welling?
Yes. Alongside Dartford, we also cover Bexley, Swanley and Welling. Each has its own page with local guide prices.
Which postcodes do you cover in Dartford?
All of them, including DA1. Give us your postcode when you enquire and we will confirm the visit details.
Can a cassette bring in fresh air?
Many cassettes have a knock-out for a fresh-air duct, so ventilation air can be connected. The ventilation system still needs designing separately.
How often should cassettes be cleaned?
Filters should be cleaned every few months in busy premises, with a full service and coil clean at least once a year.
Talk to us about your premises in Dartford
Free survey and fixed written quote. We reply with a guide price or to book the survey.