Commercial ventilation in Johnstone
A free survey, a clear specification and a fixed price for commercial ventilation in Johnstone.
- 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 Johnstone?
Budget roughly £2,850–£23,500 per system ex VAT in Johnstone. For a typical job — supply and extract for a 150 m² office — expect £6,650–£15,850 plus VAT. You get a fixed written quote after the 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.
Our coverage in Johnstone
In a town like Johnstone, a single wall unit for a shop or a cassette for a surgery makes a real difference in summer. Glasgow is about 17 km away.
Postcode districts we cover in Johnstone include PA5. We also work in nearby Paisley, Barrhead and Erskine. Buildings across Renfrewshire and Inverclyde 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 is included
- 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
Local guide prices for Johnstone
These guide prices are adjusted for Scotland, where labour and access costs run about 4% below the UK guide.
| Item | Guide price (ex VAT) | Inc VAT | Basis |
|---|---|---|---|
| Toilet or kitchenette extract | £475–£1,395 | £570–£1,674 | per room |
| Supply and extract system, small premises | £2,850–£9,550 | £3,420–£11,460 | per system |
| CO2 demand control | £380–£1,195 | £456–£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 a job in Johnstone works
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 Johnstone screened and tidy at the end of each day.
Balance
Air flows are measured and balanced to the design.
Before you book in Johnstone
Heat recovery
Bringing in cold air in winter costs energy. Heat recovery units reclaim much of it.
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.
Building Regulations
New or altered ventilation in Scotland must meet Section 3 of the Scottish building standards. We design to it and hand over the commissioning records.
Conservation areas
Historic streets and listed buildings in and around Johnstone 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 Johnstone
- Gyms and leisure: high-capacity cooling and fresh air for gym floors, studios and changing rooms.
- Restaurants and cafés: dining rooms that stay comfortable next to a hot kitchen and a busy service.
- Pubs and bars: cooling for busy bars, function rooms and cellars, sited with neighbours in mind.
- Salons and spas: comfortable salons and treatment rooms despite dryers, lamps and steam.
In Scotland, systems holding 5 tonnes CO2 equivalent of refrigerant or more fall under GB F-gas rules, with regular leak checks and records; systems with an effective output of 12 kW or more also need a periodic energy inspection.
Questions about commercial ventilation in Johnstone
How much does commercial ventilation cost in Johnstone?
Guide prices in Johnstone run from about £2,850 to £23,500 per system, plus VAT. A typical job (supply and extract for a 150 m² office) costs £6,650–£15,850 plus VAT. We fix the price in writing after a free survey.
Do you also cover Paisley, Barrhead and Erskine?
Yes. Alongside Johnstone, we also cover Paisley, Barrhead and Erskine. Each has its own page with local guide prices.
Which postcodes do you cover in Johnstone?
All of them, including PA5. Give us your postcode when you enquire and we will confirm the visit details.
Can ventilation and air conditioning work together?
Yes, and they should. We coordinate grilles, controls and set points so both systems work efficiently.
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.
Need commercial ventilation in Johnstone?
Free survey and fixed written quote. We reply with a guide price or to book the survey.