Ductwork installation
Spiral and rectangular galvanised ductwork, hung, insulated and sealed.
From £45 + VAT per metre
Kitchens, workshops and duct cleaning
Local exhaust ventilation (LEV) installation and testing
Fume, dust and mist extraction for workshops, with COSHH thorough examination and testing.
- From £195 + VAT per system
- Charged visit, price agreed first
- Airflow tested and recorded
Local exhaust ventilation (LEV) captures dust, fume, vapour or mist at the source, such as a welding bench, saw or spray booth, before workers breathe it in. We design and install LEV and arrange the thorough examination and test that COSHH requires at least every 14 months.
How it works
Under the COSHH Regulations, employers using LEV to control exposure must keep it maintained and have it thoroughly examined and tested, at least every 14 months under COSHH regulation 9 (more often for some processes), with records kept for at least five years. HSE guidance HSG258 sets out how LEV should be designed, commissioned and tested.
We install extraction arms, hoods, booths, ductwork and fans, set them up to the capture velocities the process needs, and provide commissioning information and user checks so operators know the system is working day to day.
Options we fit
Fume extraction arms
Articulated arms for welding and soldering benches.
Dust extraction
Woodworking, cutting and grinding extraction with filtration.
Booths and hoods
Enclosing hoods and spray or mixing booths.
Thorough examination and test
Statutory testing with a written report.
Signs you need this
- No LEV test report in the last 14 months
- Visible dust or fume escaping the hood
- A new process or workstation
- HSE or insurer action points
- Operators unsure if the system works
- Old extraction with no commissioning records
Guide prices
| Work | Guide price |
|---|---|
| LEV thorough examination and test with written report (per system) | £195–£395 + VAT |
| LEV design and install: extraction arm, booth or hood, ductwork and fan (per system) | £2,450–£8,950 + VAT |
Guide prices using West Midlands (our baseline) rates. Home prices include VAT at 20%; business prices exclude VAT. A guide price is not a quote: we confirm a fixed price in writing first. London is about 20% higher and the North East about 8% lower.
What happens, step by step
Assess
Process, contaminant and working positions.
Design
Hood type, capture velocity, ductwork and fan.
Install
Hoods, ducts, fan and filtration.
Commission
Performance measured and recorded as a benchmark.
Test
Thorough examination and test at least every 14 months.
The rules that apply
England
Under COSHH, LEV must be thoroughly examined and tested, at least every 14 months under COSHH regulation 9 (more often for some processes).
Wales
COSHH applies in Wales, with LEV thoroughly examined and tested at least every 14 months for most systems.
Scotland
COSHH applies in Scotland, with LEV thoroughly examined and tested at least every 14 months for most systems.
Northern Ireland
Northern Ireland has its own COSHH Regulations (Northern Ireland) 2003, enforced by HSENI, with equivalent LEV testing duties.
Questions people ask
How often does LEV need testing?
Most LEV systems must be thoroughly examined and tested at least every 14 months under COSHH (more often for some processes), and records kept for at least five years.
How much does an LEV test cost?
An LEV thorough examination and test typically costs £195 to £395 per system excluding VAT, depending on the number of extraction points.
Who can carry out LEV testing?
The examination and test must be done by a competent person; many testers hold the BOHS P601 qualification. We confirm who carries out your test when we book it.
What is HSG258?
HSG258 is HSE's guidance on controlling airborne contaminants at work, covering the design, commissioning and testing of LEV.
How much does a new LEV system cost?
A single extraction arm, booth or hood with ductwork and fan typically costs £2,450 to £8,950 excluding VAT.
Do we need a commissioning report?
Yes. A commissioning report sets the benchmark performance that later tests are compared against.
Related services
Duct cleaning (TR19 Grease and Air)
Kitchen extract and ventilation duct cleaning with photo reports for insurers.
From £395 + VAT per clean
Ventilation servicing and maintenance contracts
Planned visits for AHUs, heat recovery and extract fans, with records you can show.
From £495 + VAT per year
Commercial ventilation design and installation
Supply and extract with heat recovery for offices, shops, clinics and fit-outs.
From £7,950 + VAT per system
Read before you buy
Local exhaust ventilation (LEV) by area
Choose your area for local guide prices and the towns we cover.
- Bedfordshire
- Berkshire
- Bristol
- Buckinghamshire
- Cambridgeshire
- Cheshire
- Cornwall
- Cumbria
- Derbyshire
- Devon
- Dorset
- County Durham
- East Riding of Yorkshire
- East Sussex
- Essex
- Gloucestershire
- Greater London
- Greater Manchester
- Hampshire
- Herefordshire
- Hertfordshire
- Isle of Wight
- Kent
- Lancashire
- Leicestershire
- Lincolnshire
- Merseyside
- Norfolk
- North Yorkshire
- Northamptonshire
- Northumberland
- Nottinghamshire
- Oxfordshire
- Rutland
- Shropshire
- Somerset
- South Yorkshire
- Staffordshire
- Suffolk
- Surrey
- Tyne and Wear
- Warwickshire
- West Midlands
- West Sussex
- West Yorkshire
- Wiltshire
- Worcestershire
- Clwyd
- Dyfed
- Gwent
- Gwynedd and Anglesey
- Mid Glamorgan
- Powys
- South Glamorgan
- West Glamorgan
- Edinburgh
- Lothians
- Glasgow
- Lanarkshire
- Renfrewshire and Inverclyde
- Dunbartonshire
- Ayrshire
- Fife
- Forth Valley
- Tayside
- Aberdeen and Aberdeenshire
- Highland and Moray
- Dumfries and Galloway
- Scottish Borders
- Argyll and Bute
- Scottish Islands
- County Antrim
- County Armagh
- County Down
- County Fermanagh
- County Londonderry
- County Tyrone
Get a guide price in two minutes
Answer a few questions for a price range, or send photos and we will come back to you with a written quote.