Local exhaust ventilation (LEV) in Hertfordshire

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.

Across Hertfordshire the job is priced the same way wherever you are: what is fitted, how long it takes and how far we travel. Towns we cover include St Albans, Welwyn Garden City, Cheshunt, Hatfield and Bishop's Stortford.

LEV in Hertfordshire at a glance

Area: Hertfordshire
Towns listed: 32, largest Watford
Postcode districts: AL6, AL8, SG6, SG7, WD4 and WD5
Price region: East of England
Survey: Charged visit, price agreed first

What the work involves

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.

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.

Guide prices in Hertfordshire

Local exhaust ventilation (LEV) guide prices in Hertfordshire
Work	Guide price
LEV thorough examination and test with written report (per system)	£205–£415 + VAT
LEV design and install: extraction arm, booth or hood, ductwork and fan (per system)	£2,575–£9,400 + VAT

These ranges use our East of England rates. Prices exclude VAT. You get a fixed written price before any work is booked.

Signs it is time to call us

No LEV test report in the last 14 months
Visible dust or fume escaping the hood
A new process or workstation

Rules in England

HSE guidance HSG258 covers LEV design and testing, with thorough examination at least every 14 months for most systems.

How the job runs

Assess
Design
Install
Commission
Test

Towns we cover in Hertfordshire

Questions about local exhaust ventilation (LEV) in Hertfordshire

Is the survey free in Hertfordshire?

This is a charged visit because it is servicing, testing or repair work. We tell you the cost before booking. Surveys for new installations on the UK mainland are free.

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.

Which rules apply to ventilation in Hertfordshire?

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.

Which towns in Hertfordshire do you cover?

All of Hertfordshire, including St Albans, Welwyn Garden City, Cheshunt, Hatfield and Bishop's Stortford. If your town is not listed, send the postcode and we will confirm.