The essentials
What is LEV testing?
LEV testing is a thorough examination and test of extraction equipment, needed at least every 14 months. See what is checked and what a failed result means.
Made for UK duty holders
LEV testing near youCompare local testers. Get three quotes.
Find a company to examine and test your local exhaust ventilation (LEV). COSHH requires a thorough examination and test at least once every 14 months, and more often for the four processes listed in Schedule 4. Search by postcode, or send one request for three quotes.
Free for duty holders. Prefer to browse? See all LEV testing companies.
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See it working
LevHQ in 96 seconds
A duty holder finds a tester, requests quotes and fills in the free log book. A tester opens the request and issues a report. The companies and people in the video are made up.
- 177LEV testing companies listed
- 130towns with their own page
- 12regions with listed testers
- £0cost to search and request quotes
From postcode to test day
How it works
A straightforward way to find someone who covers your site.
- 01
Start with your postcode
Find published testers near your workplace. Ask about experience with your type of LEV system.
- 02
Request three quotes
Tell us about your LEV systems and the work they serve. Your enquiry goes to suitable testers who cover your area.
- 03
The tester visits
Agree a date and price directly. Your tester examines the LEV system at your site.
The directory
LEV testing companies by region
- LEV testing in East Midlands
- LEV testing in East of England
- LEV testing in London
- LEV testing in North East
- LEV testing in North West
- LEV testing in Northern Ireland
- LEV testing in Scotland
- LEV testing in South East
- LEV testing in South West
- LEV testing in Wales
- LEV testing in West Midlands
- LEV testing in Yorkshire and the Humber
Before you book
Four things to sort before the visit
The short version of our guide to choosing an LEV testing company.
Describe what the extraction controls
Write down the process, the material and the number of hoods. Send every company the same description so the quotes cover the same work.
Ask about experience as well as certificates
BOHS P601 covers thorough examination and testing, but a course alone does not prove competence. Ask who will attend and which systems like yours they have tested.
LevHQ shows the qualifications companies claim. We do not check them, so ask to see evidence.
Agree the scope in writing
Confirm what the price includes: the examination, the measurements, the written report and any return visit. The LEV testing cost guide lists what to ask.
Keep the report and act on it
Keep the record, or a summary, for at least five years. Fix the defects it lists before the next test is due.
Extraction at work
What gets tested
The equipment that captures airborne contaminants before people breathe them in.
LEV systems control dust, fume and vapour at the source, such as welding fume or wood dust. The examiner checks the hood, ducting, fan and filters, then whether the system still controls exposure. The Health and Safety Executive (HSE) guide HSG258, Controlling airborne contaminants at work, explains the full examination. New to LEV? Read what local exhaust ventilation is and how it works.
Know what to expect
Guides
Practical reading for duty holders. LEV testing guides
Planning ahead
How often is LEV testing required?
LEV must be thoroughly examined and tested at least every 14 months. See the four processes with shorter limits, when to test sooner and what to keep.
The law
LEV testing regulations: what the law asks of you
A plain guide to COSHH Regulation 9, LEV test intervals, employer duties, examiner competence and the records a duty holder should keep.
On the day
What happens during an LEV test?
An LEV test is a visit where an examiner inspects your extraction, measures airflow, watches smoke and dust, then reports. See each step and what to prepare.
After the visit
Understanding your LEV test report
Read an LEV test report with confidence: find the result, understand action priorities, compare benchmarks and know what to keep or query.
Before you book
LEV testing cost: published prices and what to compare
Five listed companies publish LEV test prices from £150 to £250. See what each says it covers, what changes the price and how to compare quotes.
Questions
Questions duty holders ask
How often does LEV need testing?
At least once every 14 months under COSHH Regulation 9. Schedule 4 sets one-month or six-month intervals for four named processes. Test more often if wear could reduce performance between visits.
Who can carry out an LEV test?
A competent person with the right knowledge, skills and practical experience. BOHS P601 covers LEV examination and testing, but HSE says a training course by itself does not make someone competent.
How much does LEV testing cost?
Five companies listed on LevHQ publish starting prices of £150 to £250, checked on 19 October 2026. The price for your site depends on your systems, hoods, access and the report you need. Request three quotes with the same scope and compare them.
How long must I keep an LEV test report?
Keep the thorough examination and test record, or a suitable summary, for at least five years from the date it was made.
Does LevHQ check the companies it lists?
No. LevHQ lists companies and shows the qualifications they claim. We do not verify those claims. Ask each company for evidence and for references from similar work.
For LEV testers
List your company free
A free listing shows your full company profile, and you can receive quote requests from workplaces your coverage reaches. Listed (£9 a month) and Featured (£19 a month) put your company higher in results and ahead of Free listings for quote requests.
Every listing, free or paid, includes the LevHQ report tool. Record measurements and photographs, then issue a PDF report and QR label for your client.
Start with your site
Find the right tester
for your extraction.
One request. Up to three testers who cover your area. No fee for duty holders.