Welling, Greater London
Commercial ventilation design and installation in Welling
Supply and extract with heat recovery for offices, shops, clinics and fit-outs. Covering Welling and DA6, DA15 and DA16.
- From £9,550 + VAT per system
- Free survey

Businesses in Welling often need us when meeting rooms get stuffy or a new layout leaves areas with no fresh air.
Customers in Welling can get a guide price online in a couple of minutes. It uses London rates, which is what we would charge for the same job anywhere in Greater London. Surveys for new installations are free on the UK mainland, with a written quote afterwards.
Commercial ventilation in Welling at a glance
- Town
- Welling, Greater London
- Postcode districts
- DA6, DA15 and DA16
- Nearby
- Abbey Wood (2 miles), Plumstead (2 miles) and Bexley (2 miles)
- Price region
- London
- Survey
- Free survey (UK mainland)
How we approach commercial ventilation in Welling
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.
Toilet and kitchenette extract
Dedicated extract for welfare areas.
Demand control
CO2 or occupancy sensors that slow the system when rooms are empty.
Guide prices in Welling
| Work | Guide price |
|---|---|
| Small office or shop: heat recovery unit, ductwork and controls (up to about 150 m²) (per system) | £9,550–£20,350 + VAT |
| Office supply and extract ventilation with heat recovery, during a fit-out (per m² of floor) | £65–£150 + VAT |
These ranges use our London rates. Prices exclude VAT. You get a fixed written price before any work is booked.
When to get it looked at
- Old units that are noisy, inefficient or failing
- Stuffy meeting rooms and afternoon drowsiness
- More staff than the system was designed for
Rules that apply in England
English building work follows Approved Document F (2021 edition) for ventilation rates, installation and commissioning. Workplaces must also be ventilated with a sufficient quantity of fresh or purified air under the Workplace (Health, Safety and Welfare) Regulations 1992.
Questions from Welling
How do I get a price for commercial ventilation in Welling?
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.
Can you work as a subcontractor on a fit-out?
Yes. We can install to a main contractor's programme and consultants' drawings, and supply commissioning records for handover.
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.
What area around Welling do you work in?
All of Greater London. Near Welling that includes Abbey Wood, Plumstead, Bexley and Sidcup.
Do you cover Welling and nearby?
Yes. We cover Welling and nearby places including Abbey Wood, Plumstead, Bexley and Sidcup. Send your postcode and we will confirm.
We provide commissioning records for every Welling handover.
Commercial ventilation near Welling
More services in Welling
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.