Local exhaust ventilation (LEV) in Greater London

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.

Our team is based in Great Barr, Birmingham, and we work throughout Greater London, from Barking, Archway, Sutton, Croydon and Brent. Visits for this work are charged, with the price agreed before we arrive.

LEV in Greater London at a glance

Area: Greater London
Towns listed: 216, largest Brent
Postcode districts: SW3, SW8, E3, E14, CR2 and CR5
Price region: London
Survey: Charged visit, price agreed first

How we do it

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.

Thorough examination and test

Statutory testing with a written report.

Fume extraction arms

Articulated arms for welding and soldering benches.

Dust extraction

Woodworking, cutting and grinding extraction with filtration.

Guide prices in Greater London

Local exhaust ventilation (LEV) guide prices in Greater London
Work	Guide price
LEV thorough examination and test with written report (per system)	£235–£475 + VAT
LEV design and install: extraction arm, booth or hood, ductwork and fan (per system)	£2,950–£10,750 + VAT

London rates shown. Prices exclude VAT. The fixed price is confirmed in writing after we have seen the job.

Common reasons people call

Old extraction with no commissioning records
No LEV test report in the last 14 months
Visible dust or fume escaping the hood

Rules in England

Under COSHH, LEV must be thoroughly examined and tested, at least every 14 months under COSHH regulation 9 (more often for some processes).

How the job runs

Assess
Design
Install
Commission
Test

Towns we cover in Greater London

Questions about local exhaust ventilation (LEV) in Greater London

Which rules apply to ventilation in Greater London?

In England, ventilation in new and altered homes is covered by Approved Document F of the Building Regulations. Landlords also have duties under the Housing Health and Safety Rating System, and workplaces must be ventilated under the Workplace (Health, Safety and Welfare) Regulations 1992.

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.

Which towns in Greater London do you cover?

All of Greater London, including Barking, Archway, Sutton, Croydon and Brent. If your town is not listed, send the postcode and we will confirm.

Are prices different in Greater London?

Our guide prices are adjusted by region. In Greater London we use London rates, so LEV thorough examination and test with written report is typically £235 to £475 + VAT per system.