Commercial ventilation in Dumfries
Commercial ventilation for businesses in Dumfries — 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 Dumfries?
Budget roughly £2,850–£23,500 per system ex VAT in Dumfries. For a typical job — supply and extract for a 150 m² office — expect £6,650–£15,850 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.
Covering Dumfries and nearby
Dumfries has a compact centre of shops, cafés and offices, with business units on its outskirts.
We work across Dumfries's postcode districts, including DG1. We plan work in Dumfries so the noisy parts happen when they disturb your business least.
What the job covers
- 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
Commercial ventilation prices in Dumfries
Prices below include our regional adjustment for Scotland (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.
From enquiry to handover in Dumfries
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 Dumfries screened and tidy at the end of each day.
Balance
Air flows are measured and balanced to the design.
Things to check in Dumfries
Heat recovery
Bringing in cold air in winter costs energy. Heat recovery units reclaim much of it.
Leased premises
If your Dumfries 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.
Noise
Fans and grilles are selected and attenuated to keep noise down.
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.
Premises we work in around Dumfries
- Schools and education: classroom cooling, ventilation and IT room cooling, installed in the holidays.
- 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.
- 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.
Your questions answered
How much does commercial ventilation cost in Dumfries?
Guide prices in Dumfries 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.
Which postcodes do you cover in Dumfries?
All of them, including DG1. 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 Dumfries?
Free survey and fixed written quote. We reply with a guide price or to book the survey.