Dartford, Kent
Commercial ventilation design and installation in Dartford
Supply and extract with heat recovery for offices, shops, clinics and fit-outs. Covering Dartford and DA1, DA2 and DA8.
- From £8,750 + VAT per system
- Free survey

For Dartford landlords and occupiers, we can design the ventilation or install to your consultant's drawings.
Customers in Dartford can get a guide price online in a couple of minutes. It uses South East rates, which is what we would charge for the same job anywhere in Kent. The survey is free for new installations on the UK mainland, and the quote that follows is fixed and in writing.
Commercial ventilation in Dartford at a glance
- Town
- Dartford, Kent
- Postcode districts
- DA1, DA2 and DA8
- Nearby
- Bexley (3 miles), Swanley (4 miles) and Belvedere (4 miles)
- Price region
- South East
- Survey
- Free survey (UK mainland)
How we approach commercial ventilation in Dartford
In practice, designers work to rates such as 10 litres a second per person for offices, taken from Approved Document F and CIBSE guidance, and adjust for meeting rooms, kitchens and toilets. Typical jobs are fit-outs and refurbishments: a new tenant needs ventilation to match a new layout, an old system cannot keep up with more staff, or a change of use needs a fresh design.
Demand control
CO2 or occupancy sensors that slow the system when rooms are empty.
Design and build or install-only
We design it, or install to a consultant's drawings.
Guide prices in Dartford
| Work | Guide price |
|---|---|
| Small office or shop: heat recovery unit, ductwork and controls (up to about 150 m²) (per system) | £8,750–£18,650 + VAT |
| Office supply and extract ventilation with heat recovery, during a fit-out (per m² of floor) | £60–£140 + VAT |
South East rates shown. Prices exclude VAT. The fixed price is confirmed in writing after we have seen the job.
Signs it is time to call us
- Stuffy meeting rooms and afternoon drowsiness
- More staff than the system was designed for
- A fit-out or change of layout
Rules that apply in England
English building work follows Approved Document F (2021 edition) for ventilation rates, installation and commissioning. Employers have a separate duty under the Workplace Regulations 1992 to provide effective and suitable ventilation.
Questions from Dartford
How do I get a price for commercial ventilation in Dartford?
Use the guide price tool, the form on this page, live chat, WhatsApp or call 0800 088 6341. A postcode and a couple of photos help us give you a useful answer first time.
Do we need building regulations approval?
New or altered ventilation in non-domestic buildings usually forms part of the building control application for the works. We provide the design information and commissioning records needed.
Can the system cool as well?
Ventilation alone moves air; it does not cool much. Where cooling is needed we can coordinate with the air conditioning installer.
What area around Dartford do you work in?
All of Kent. Near Dartford that includes Bexley, Swanley, Belvedere and Swanscombe.
Do you cover Dartford and nearby?
Yes. We cover Dartford and nearby places including Bexley, Swanley, Belvedere and Swanscombe. Send your postcode and we will confirm.
We provide commissioning records for every Dartford handover.
Commercial ventilation near Dartford
More services in Dartford
Get a guide price in two minutes
Answer a few questions for a price range, or send photos and we will come back to you with a written quote.