Commercial ventilation in Northolt
Commercial ventilation for businesses in Northolt — 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 Northolt?
Our guide range in Northolt is £3,795–£31,500 per system before VAT; a typical job (supply and extract for a 150 m² office) is £8,895–£20,995 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 Northolt
Northolt sits within London's dense commercial fabric: shopfronts, offices above, studios and venues, where outdoor unit positions and access need careful planning.
That includes premises in UB5 and the surrounding districts. We also cover Greenford, Harrow and Southall, all within easy reach of Northolt. Commercial ventilation in Northolt is priced from a written specification that lists the equipment, positions, controls and commissioning.
What we do
- Fresh-air rate calculation for each space
- 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
Prices in Northolt
Prices below include our regional adjustment for London (28% above the UK guide).
| Item | Guide price (ex VAT) | Inc VAT | Basis |
|---|---|---|---|
| Toilet or kitchenette extract | £635–£1,850 | £762–£2,220 | per room |
| Supply and extract system, small premises | £3,795–£12,750 | £4,554–£15,300 | per system |
| CO2 demand control | £505–£1,595 | £606–£1,914 | per zone |
| Ductwork | £85–£245 | £102–£294 | per metre |
Ex VAT. Larger systems and fire-rated ductwork are priced from a full design.
How it works in Northolt
Assess
We work out how many people use each space and the fresh-air rate needed. For sites in Northolt we confirm access and parking beforehand.
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.
Balance
Air flows are measured and balanced to the design.
Before you book in Northolt
Building Regulations
New or altered ventilation in England must meet Approved Document F. We design to it and hand over the commissioning records.
Working hours
Most Northolt businesses prefer noisy work outside trading hours. Early starts, evenings and weekends can be arranged and are priced up front.
Noise
Fans and grilles are selected and attenuated to keep noise down.
Leased premises
If your Northolt 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.
Who we work with in Northolt
- Restaurants and cafés: dining rooms that stay comfortable next to a hot kitchen and a busy service.
- Offices: zoned cooling and heating for open-plan floors, meeting rooms and comms rooms.
- Healthcare and dental: clean, quiet cooling for surgeries, clinics, dental practices and care settings.
- Pubs and bars: cooling for busy bars, function rooms and cellars, sited with neighbours in mind.
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.
Your questions answered
How much does commercial ventilation cost in Northolt?
Guide prices in Northolt run from about £3,795 to £31,500 per system, plus VAT. A typical job (supply and extract for a 150 m² office) costs £8,895–£20,995 plus VAT. We fix the price in writing after a free survey.
Do you also cover Greenford, Harrow and Southall?
Yes. Alongside Northolt, we also cover Greenford, Harrow and Southall. Each has its own page with local guide prices.
Which postcodes do you cover in Northolt?
All of them, including UB5. Give us your postcode when you enquire and we will confirm the visit details.
How much fresh air does an office need?
Guidance for offices is typically around 10 litres per second per person, with more for rooms with higher pollutant loads. We calculate it per space.
Does air conditioning provide fresh air?
No. Most air conditioning recirculates room air. Fresh air needs a ventilation system or openable windows.
Get a guide price for Northolt
Free survey and fixed written quote. We reply with a guide price or to book the survey.