Ceiling cassette air conditioning in Portsmouth
From a single room to a whole floor: ceiling cassette air conditioning in Portsmouth, planned around your trading hours.
- 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 Portsmouth?
Budget roughly £2,450–£5,695 per cassette ex VAT in Portsmouth. For a typical job — shop or restaurant with 2–3 cassettes — expect £5,695–£15,500 plus VAT. You get a fixed written quote after the free survey.
A ceiling cassette is an air conditioning indoor unit that sits inside a suspended ceiling with only a square grille visible.
Portsmouth and surrounding areas
In Portsmouth, commercial premises range from city-centre office blocks and shopping streets to restaurants, hotels and industrial estates.
We work across Portsmouth's postcode districts, including PO5. Nearby, we also cover Gosport (about 3 km), Fareham (about 9 km) and Havant (about 10 km). In Portsmouth, outdoor unit positions are often the deciding factor: a rear flat roof or yard is usually straightforward, while a front elevation may need landlord or planning consent first.
What the job covers
- Compact 600 mm or full-size cassette selection
- 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 Portsmouth
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 Portsmouth
Check the void
We confirm void depth, grid size and any obstructions such as beams, sprinkler pipes or ductwork. For sites in Portsmouth we confirm access and parking beforehand.
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.
Test and commission
The condensate pump is water-tested, the system pressure tested and charged, and air directions set.
Local points to consider
Condensate
Most cassettes include a pump. The discharge still needs a route to a drain, which we design at survey.
Leased premises
If your Portsmouth premises are leased, the landlord's written consent is usually needed for external units, wall penetrations and roof access. We provide drawings and data sheets for the request.
Cleaning access
Filters need cleaning regularly, so cassettes should be reachable with a step ladder.
Working hours
Most Portsmouth businesses prefer noisy work outside trading hours. Early starts, evenings and weekends can be arranged and are priced up front.
Who we work with in Portsmouth
- Restaurants and cafés: dining rooms that stay comfortable next to a hot kitchen and a busy service.
- Salons and spas: comfortable salons and treatment rooms despite dryers, lamps and steam.
- Schools and education: classroom cooling, ventilation and IT room cooling, installed in the holidays.
- Gyms and leisure: high-capacity cooling and fresh air for gym floors, studios and changing rooms.
Compliance in England: refrigerant work falls under GB F-gas rules, and buildings with more than 12 kW of air conditioning in total need a periodic energy inspection (often called TM44).
Your questions answered
How much does a ceiling cassette cost in Portsmouth?
Guide prices in Portsmouth 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 Gosport, Fareham and Havant?
Yes. Alongside Portsmouth, we also cover Gosport, Fareham and Havant. Each has its own page with local guide prices.
Which postcodes do you cover in Portsmouth?
All of them, including PO5. Give us your postcode when you enquire and we will confirm the visit details.
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.
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 Portsmouth
Free survey and fixed written quote. We reply with a guide price or to book the survey.