Commercial ventilation in Llantwit Major
Commercial ventilation for businesses in Llantwit Major — 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 Llantwit Major?
Budget roughly £2,795–£23,500 per system ex VAT in Llantwit Major. For a typical job — supply and extract for a 150 m² office — expect £6,595–£15,695 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 Llantwit Major and nearby
In a town like Llantwit Major, a single wall unit for a shop or a cassette for a surgery makes a real difference in summer. Cardiff is about 23 km away.
That includes premises in CF61 and the surrounding districts. We also cover Bridgend, Barry and Porthcawl, all within easy reach of Llantwit Major. Commercial ventilation in Llantwit Major is priced from a written specification that lists the equipment, positions, controls and commissioning.
What the job covers
- Fresh-air rate calculation for each space
- Supply and extract fans, ductwork and grilles
- Controls such as timers or CO2 sensors
- Air-flow measurement and balancing
- Commissioning records
Guide prices in Llantwit Major
Prices below include our regional adjustment for Wales (5% below the UK guide).
| Item | Guide price (ex VAT) | Inc VAT | Basis |
|---|---|---|---|
| Toilet or kitchenette extract | £470–£1,395 | £564–£1,674 | per room |
| Supply and extract system, small premises | £2,795–£9,450 | £3,354–£11,340 | per system |
| CO2 demand control | £375–£1,195 | £450–£1,434 | per zone |
| Ductwork | £60–£185 | £72–£222 | per metre |
Ex VAT. Larger systems and fire-rated ductwork are priced from a full design.
How it works in Llantwit Major
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 Llantwit Major screened and tidy at the end of each day.
Balance
Air flows are measured and balanced to the design.
Local points to consider
Fire
Ducts passing through fire-rated walls or floors need fire dampers.
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.
Heat recovery
Bringing in cold air in winter costs energy. Heat recovery units reclaim much of it.
Conservation areas
Historic streets and listed buildings in and around Llantwit Major are more likely to need planning permission for outdoor units on visible elevations. We check with the local planning authority before work is booked.
Who we work with in Llantwit Major
- Healthcare and dental: clean, quiet cooling for surgeries, clinics, dental practices and care settings.
- 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.
- Schools and education: classroom cooling, ventilation and IT room cooling, installed in the holidays.
Compliance in Wales: 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 Llantwit Major?
Guide prices in Llantwit Major run from about £2,795 to £23,500 per system, plus VAT. A typical job (supply and extract for a 150 m² office) costs £6,595–£15,695 plus VAT. We fix the price in writing after a free survey.
Do you also cover Bridgend, Barry and Porthcawl?
Yes. Alongside Llantwit Major, we also cover Bridgend, Barry and Porthcawl. Each has its own page with local guide prices.
Which postcodes do you cover in Llantwit Major?
All of them, including CF61. 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.
Can ventilation and air conditioning work together?
Yes, and they should. We coordinate grilles, controls and set points so both systems work efficiently.
Need commercial ventilation in Llantwit Major?
Free survey and fixed written quote. We reply with a guide price or to book the survey.