Commercial ventilation in Sevenoaks
Commercial ventilation for businesses in Sevenoaks — surveyed, designed and priced in writing before any work starts.
- Free site survey and fixed written quote
- Equipment, positions and price set out in writing
- Work planned around your opening hours
How much does commercial ventilation cost in Sevenoaks?
In Sevenoaks, guide prices run from about £3,395 to £27,995 per system, plus VAT. A typical job (supply and extract for a 150 m² office) usually comes to £7,995–£18,995 plus VAT. Your exact price is fixed in writing once we have surveyed.
Commercial ventilation brings outdoor air into a building and removes stale air, using fans and ductwork to supply and extract air at the rates needed for the number of people and the activity.
Working in Sevenoaks
Sevenoaks has a compact centre of shops, cafés and offices, with business units on its outskirts. Maidstone is about 23 km away.
That includes premises in TN13 and the surrounding districts. Neighbouring towns we cover include Tonbridge, Swanley and Royal Tunbridge Wells. For commercial ventilation in Sevenoaks, the survey looks at how the space is used, where equipment and ductwork can go and what the electrical supply can take.
What is included
- Supply and extract fans, ductwork and grilles
- Filters, attenuators and fire dampers where required
- Controls such as timers or CO2 sensors
- Air-flow measurement and balancing
- Commissioning records
Prices in Sevenoaks
Prices below include our regional adjustment for the South East (15% above the UK guide).
| Item | Guide price (ex VAT) | Inc VAT | Basis |
|---|---|---|---|
| Toilet or kitchenette extract | £570–£1,650 | £684–£1,980 | per room |
| Supply and extract system, small premises | £3,395–£11,450 | £4,074–£13,740 | per system |
| CO2 demand control | £455–£1,450 | £546–£1,740 | per zone |
| Ductwork | £75–£225 | £90–£270 | per metre |
Ex VAT. Larger systems and fire-rated ductwork are priced from a full design.
How it works in Sevenoaks
Assess
We work out how many people use each space and the fresh-air rate needed.
Design
Fan, duct and grille sizes are designed for air flow, noise and energy use.
Install
Ductwork and fans are installed and connected to controls. We keep work areas in Sevenoaks screened and tidy at the end of each day.
Balance
Air flows are measured and balanced to the design.
Before you book in Sevenoaks
Building Regulations
New or altered ventilation in England must meet Approved Document F. We design to it and hand over the commissioning records.
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.
Fire
Ducts passing through fire-rated walls or floors need fire dampers.
Leased premises
If your Sevenoaks 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.
Types of premises we cover in Sevenoaks
- Salons and spas: comfortable salons and treatment rooms despite dryers, lamps and steam.
- Gyms and leisure: high-capacity cooling and fresh air for gym floors, studios and changing rooms.
- Pubs and bars: cooling for busy bars, function rooms and cellars, sited with neighbours in mind.
- Restaurants and cafés: dining rooms that stay comfortable next to a hot kitchen and a busy service.
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 commercial ventilation cost in Sevenoaks?
Guide prices in Sevenoaks run from about £3,395 to £27,995 per system, plus VAT. A typical job (supply and extract for a 150 m² office) costs £7,995–£18,995 plus VAT. We fix the price in writing after a free survey.
Do you also cover Tonbridge, Swanley and Royal Tunbridge Wells?
Yes. Alongside Sevenoaks, we also cover Tonbridge, Swanley and Royal Tunbridge Wells. Each has its own page with local guide prices.
Which postcodes do you cover in Sevenoaks?
All of them, including TN13. Give us your postcode when you enquire and we will confirm the visit details.
Can ventilation and air conditioning work together?
Yes, and they should. We coordinate grilles, controls and set points so both systems work efficiently.
Does air conditioning provide fresh air?
No. Most air conditioning recirculates room air. Fresh air needs a ventilation system or openable windows.
Need commercial ventilation in Sevenoaks?
Free survey and fixed written quote. We reply with a guide price or to book the survey.