Radon is the second leading cause of lung cancer. Screen first. Mitigate confidently.
Workplace radon screening with passive detectors, follow-up active measurement and mitigation oversight under the Ionising Radiations Regulations 2017 — including UKHSA validation and HSE notification support.
- UK-wide since 2013
- Independent assessments
- ISO 9001 accredited
- Practical control advice
What this means for you
Evidence you can act on and defend.
Measured exposure evidence
Data suitable for HSE, insurers and audits.
Independent assessment
Occupational hygiene review of real exposure risk.
Practical control recommendations
Prioritised actions based on risk and operational practicality.
Compliance support
Evidence to support COSHH and internal governance.
Speak with a radon specialist
0800 433 7914
sales@sysco-env.co.ukMon–Fri · 08:00–18:00 · Independent advice · Fixed-price scope
Typical response: same working day
What happens next
Initial radon screening is minimally disruptive.
Detectors are deployed quietly in occupied space for the 3-month period; we collect, process and report — and where required, scope mitigation and re-test to confirm clearance.
No unnecessary disruption. No generic paperwork. No unnecessary complexity.
Whether exposure is controlled
A clear yes or no, backed by measurement.
Where the highest risks are
Locations, tasks and roles ranked by exposure.
What actions matter most
A prioritised plan you can budget and schedule.
What you get
Four answers. One clear plan.
You need to know what your workforce is exposed to, whether your controls are effective, what actions matter most, and how to demonstrate control confidently.
That is exactly what we deliver.
Passive screening
UKHSA-validated passive detectors deployed for the standard 3-month integrating period.
Active diagnostic
Continuous active monitoring where rapid results or diagnostic profiling is needed.
IRR17 compliance
Benchmarking against the 300 Bq/m³ workplace action level and HSE notification support.
Mitigation oversight
Independent verification of contractor-installed sumps and ventilation upgrades.
Why clients call
If any of this sounds familiar, you're in the right place.
- 01
An auditor is asking
HSE, your insurer or a client wants evidence — not assurances
We provide measured radon data and a clear technical report that resolves the issue quickly.
- 02
Your team is worried
Operatives are reporting concerns or symptoms
We attend site, quantify workforce exposure and provide clear evidence of current risk levels.
- 03
You suspect a problem
You know there's a risk and you want measured data before it becomes a crisis
We quantify exposure, assess it against current limits and provide a prioritised corrective action plan.
What we answer for you
Three questions, settled.
- Where your people are exposed
- We map the tasks, areas and shifts where radon matters, then sample what your team actually breathes — not a generic site average.
- Whether your controls are working
- An independent review of your LEV, ventilation, PPE and work practices — what is effective and what requires improvement.
- What you need to fix first
- A prioritised, costed action list — the smallest set of changes that gets you compliant and measurably safer.
How we work with you
From your first call to your action plan.
- 1
We listen first — your site, your concerns, your deadline.
- 2
We walk the workplace with your team to see exposure as it actually happens.
- 3
We sample on the people most at risk, using validated occupational hygiene methods for radon.
- 4
We assess your existing controls honestly — what's working, what isn't.
- 5
You receive a clear technical report suitable for operational, compliance and regulatory readers.
- 6
We hand you a prioritised action plan you can budget, schedule and defend.
Typical survey outputs
What you receive at the end of the engagement.
- Detector deployment plan
- 3-month integrated results
- Comparison vs 300 Bq/m³
- Active diagnostic profiling
- Mitigation specification
- Post-mitigation verification
- HSE notification support
- IRR17-aligned report
Client testimony
“Sysco screened our entire estate, identified two buildings above the action level and saw the mitigation through to confirmed clearance.”
— Estates compliance manager
UK local authority
Typical environments we assess
Wherever radon risk affects your people.
- Schools (UKHSA Affected Areas)
- Care & healthcare facilities
- Local authority buildings
- Hotels in radon areas
- Industrial premises
- Heritage / basement spaces
Background
Workplace radon, in detail.
What radon is
Radon-222 is a naturally occurring radioactive gas formed from the decay of uranium in rock and soil. It accumulates in indoor space, particularly in low-ventilation ground-floor and basement areas. Radon decay products attach to airborne particulate and lodge in the lung, where alpha-particle dose causes lung cancer.
What IRR17 requires
The Ionising Radiations Regulations 2017 set a workplace action level of 300 Bq/m³. Where measurements exceed the level, the employer must notify HSE and put in place mitigation. UKHSA radon Affected Areas maps identify higher-risk geographies; in those areas, ground-floor workplaces must be screened.
Measurement approach
Passive detectors (typically electret-ion or solid-state nuclear track) deployed for a standard 3-month integrating period — the only method that gives a reliable annual-equivalent average. Active continuous monitors are used for diagnostic short-term work and for verifying mitigation.
Related services
Often assessed alongside radon.
Workplace IAQ
Multi-parameter IAQ for occupied buildings.
Explore 02WELL performance
Including radon for the WELL Air feature.
Explore 03Hazardous substances (COSHH)
Full COSHH exposure assessments across solvents, dusts, fumes and bio-aerosols.
Explore 04Diesel exhaust (DEEE)
Personal sampling and elemental carbon analysis for diesel-exposed environments.
ExploreCommon questions
Radon — FAQs.
Quick answers to the questions we hear most from operations, HSE and procurement teams.
- What's the action level for workplaces?
- 300 Bq/m³ as an annual-equivalent average under IRR17.
- How long is the standard test?
- Three months minimum for a reliable integrated result. Short-term active monitoring is for diagnosis only.
- Do you cover schools?
- Yes — including schools in UKHSA Affected Areas.
- Do you oversee mitigation?
- Yes — independent verification of sumps, positive-pressure systems and ventilation upgrades.
- Are detectors UKHSA-validated?
- Yes — we use UKHSA-validated suppliers.
- Where in the UK?
- Nationwide UK coverage with focus on the South-West, North-East, Midlands and other Affected Areas.
Speak with a radon specialist
Tell us your estate. We'll quote a screening programme.
Tell us
- building locations and types,
- approximate ground-floor occupied area,
- any prior radon results,
- and your reporting deadline.
We will provide
- a clear scope,
- fixed quotation,
- proposed attendance strategy,
- and expected reporting timeframe.
Send us a brief
Outline the sites, tasks and timelines of concern — we'll reply with a clear scope and fixed quotation.
From the field