Commercial ventilation in County Durham
Commercial ventilation for businesses in County Durham — 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 County Durham?
Our guide range in County Durham is £2,750–£22,995 per system before VAT; a typical job (supply and extract for a 150 m² office) is £6,550–£15,500 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.
County Durham and surrounding areas
We cover all of County Durham, including Darlington, Hartlepool, Stockton-on-Tees, Durham and Chester-le-Street. Each town below has its own page with local guide prices.
Postcode districts we cover include DH1, DH7, DL1, DL12, DL17, TS16, TS23 and TS29. For commercial ventilation in County Durham, the survey looks at how the space is used, where equipment and ductwork can go and what the electrical supply can take.
What we do
- 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
Commercial ventilation prices in County Durham
Prices below include our regional adjustment for the North East (6% below the UK guide).
| Item | Guide price (ex VAT) | Inc VAT | Basis |
|---|---|---|---|
| Toilet or kitchenette extract | £465–£1,350 | £558–£1,620 | per room |
| Supply and extract system, small premises | £2,750–£9,350 | £3,300–£11,220 | per system |
| CO2 demand control | £370–£1,195 | £444–£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 County Durham
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. In County Durham we agree timings around your opening hours.
Balance
Air flows are measured and balanced to the design.
Things to check in County Durham
Fire
Ducts passing through fire-rated walls or floors need fire dampers.
Leased premises
If your County Durham 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.
Building Regulations
New or altered ventilation in England must meet Approved Document F. We design to it and hand over the commissioning records.
Conservation areas
Historic streets and listed buildings in and around County Durham are more likely to need planning permission for outdoor units on visible elevations. We check with the local planning authority before work is booked.
Premises we work in around County Durham
- Schools and education: classroom cooling, ventilation and IT room cooling, installed in the holidays.
- Offices: zoned cooling and heating for open-plan floors, meeting rooms and comms rooms.
- 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.
Compliance in England: 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).
FAQs for County Durham
How much does commercial ventilation cost in County Durham?
Guide prices in County Durham run from about £2,750 to £22,995 per system, plus VAT. A typical job (supply and extract for a 150 m² office) costs £6,550–£15,500 plus VAT. We fix the price in writing after a free survey.
Do you also cover Tyne and Wear, Northumberland and North Yorkshire?
Yes. Alongside County Durham, we also cover Tyne and Wear, Northumberland and North Yorkshire. Each has its own page with local guide prices.
Does air conditioning provide fresh air?
No. Most air conditioning recirculates room air. Fresh air needs a ventilation system or openable windows.
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.
Get a guide price for County Durham
Free survey and fixed written quote. We reply with a guide price or to book the survey.