Commercial ventilation in Farnworth
A free survey, a clear specification and a fixed price for commercial ventilation in Farnworth.
- 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 Farnworth?
Our guide range in Farnworth is £2,895–£23,995 per system before VAT; a typical job (supply and extract for a 150 m² office) is £6,795–£16,150 plus VAT. The fixed price follows a free survey.
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.
Covering Farnworth and nearby
In Farnworth, typical premises are high-street shops, offices above them, surgeries, salons and local industrial units. Bolton is about 4 km away.
We work across Farnworth's postcode districts, including BL4 and WA8. We also work in nearby Bolton, Radcliffe and Tyldesley. Buildings across Greater Manchester range from converted period offices to modern units with deep ceiling voids, so we measure each site rather than relying on a standard package.
What you get
- Fresh-air rate calculation for each space
- Filters, attenuators and fire dampers where required
- Controls such as timers or CO2 sensors
- Air-flow measurement and balancing
- Commissioning records
Local guide prices for Farnworth
These guide prices are adjusted for the North West, where labour and access costs run about 2% below the UK guide.
| Item | Guide price (ex VAT) | Inc VAT | Basis |
|---|---|---|---|
| Toilet or kitchenette extract | £485–£1,395 | £582–£1,674 | per room |
| Supply and extract system, small premises | £2,895–£9,750 | £3,474–£11,700 | per system |
| CO2 demand control | £385–£1,195 | £462–£1,434 | per zone |
| Ductwork | £65–£190 | £78–£228 | per metre |
Ex VAT. Larger systems and fire-rated ductwork are priced from a full design.
How it works in Farnworth
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 Farnworth screened and tidy at the end of each day.
Balance
Air flows are measured and balanced to the design.
What to think about in Farnworth
Building Regulations
New or altered ventilation in England must meet Approved Document F. We design to it and hand over the commissioning records.
Leased premises
If your Farnworth 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.
Fire
Ducts passing through fire-rated walls or floors need fire dampers.
Roof and height work
Flat roofs, high walls and atriums need the right access equipment and edge protection. We plan towers, MEWPs or scaffold before the job, not on the day.
Types of premises we cover in Farnworth
- 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.
- Salons and spas: comfortable salons and treatment rooms despite dryers, lamps and steam.
- Offices: zoned cooling and heating for open-plan floors, meeting rooms and comms rooms.
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 Farnworth?
Guide prices in Farnworth run from about £2,895 to £23,995 per system, plus VAT. A typical job (supply and extract for a 150 m² office) costs £6,795–£16,150 plus VAT. We fix the price in writing after a free survey.
Do you also cover Bolton, Radcliffe and Tyldesley?
Yes. Alongside Farnworth, we also cover Bolton, Radcliffe and Tyldesley. Each has its own page with local guide prices.
Which postcodes do you cover in Farnworth?
All of them, including BL4 and WA8. 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.
Do you install kitchen extraction?
Commercial kitchen canopies are a specialist area. We focus on general supply and extract, toilets and heat recovery, and can advise on kitchen requirements.
Need commercial ventilation in Farnworth?
Free survey and fixed written quote. We reply with a guide price or to book the survey.