UK trade-and-hazard guidance by the Riskora Editorial Team
Any property built before 1992 in the UK may contain lead-based paint, and pre-1960s properties almost certainly do. Sanding, scraping or burning lead paint releases lead dust and fume — a confirmed neurotoxin and reproductive hazard. The Control of Lead at Work Regulations 2002 sit alongside COSHH and impose specific medical surveillance, biological monitoring and exposure-limit duties. A painter's RAMS must positively confirm lead status (XRF or paint sample) before any abrasive method is used, and must specify wet methods and HEPA extraction where lead is present.
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Control of Lead at Work Regulations 2002 (CLAW)
Regulations 5, 6 & 10
Risk assessment specific to lead. Exposure prevention or control to below the action level (0.075 mg/m³ for adult males, lower for females of reproductive age). Medical surveillance with blood lead monitoring where action level may be exceeded.
HSE EH40 Workplace Exposure Limits
Lead — 0.15 mg/m³ (8-hr TWA)
Air monitoring required where lead is identified. Action levels trigger medical surveillance.
COSHH Regulations 2002
Regulation 7
Engineering controls (wet methods, HEPA extraction) before PPE. Dry sanding of lead paint is effectively prohibited.
Every UK RAMS reviewer applies the hierarchy of controls in the order below. Defaulting straight to PPE is the single most common reason a RAMS fails review.
1. Eliminate
Encapsulate (overcoat with proprietary system) rather than remove where the substrate allows. Replace timber elements (windows, skirtings) instead of stripping.
2. Substitute
Chemical paint stripper (caustic or solvent gel) instead of sanding or burning. Wet abrasion (Festool with water mist) instead of dry.
3. Engineering controls
HEPA-filtered M-class extraction at every sanding head. Containment sheeting (4-side enclosure) for any internal stripping. Negative pressure for occupied buildings.
4. Administrative controls
Pre-start XRF or paint sample test. CLAW medical surveillance enrolment for all operatives before work starts. Exclusion of pregnant or breastfeeding workers. No eating, drinking or smoking in work zone — designated welfare with hand-wash and change facilities.
5. PPE (last line)
FFP3 (powered hood preferred for prolonged work), disposable Type 5/6 coverall, gloves, eye protection, separate site footwear.
Going to site without a documented lead test, or naming dry sanding as the method 'with FFP3 mask'. CLAW requires positive confirmation of lead status before work, and engineering controls before PPE — both omissions guarantee rejection.
An illustrative extract structured for principal-contractor review. Site-specific facts must be substituted and checked by a competent person.
Substrate: pre-1980 timber sash windows. Pre-start XRF test (test ref LD-2026-014, results: 1.8 mg/cm² lead — confirmed positive). Method: chemical stripping using PeelAway 7 with full poly containment, negative-pressure HEPA extraction (Pullman Holt 86HEPA, 0.3 micron). Operatives enrolled in CLAW medical surveillance (Bupa Occ Health, ref BUPA-LD-2026), baseline blood lead recorded. PPE: 3M Versaflo TR-300 powered hood, Type 5/6 disposable coverall, nitrile gloves, separate welfare cabin with hand-wash. Waste classified as hazardous, removed via licensed waste carrier (carrier ref CB/123456).
Daily HEPA filter check. Air sampling on first day of work and weekly thereafter. Blood lead monitoring per CLAW medical surveillance schedule. Containment integrity check at sign-on.
Do I need to test paint for lead before working?
On any property built before 1992, yes — if you intend to disturb the paint by sanding, scraping or burning. The cheapest and most defensible approach is an XRF test by a qualified surveyor, or a paint chip lab analysis. CLAW expects positive confirmation, not assumption.
Is heat gun stripping of lead paint allowed?
No — heat-gun temperatures above 450°C vaporise lead, producing the most hazardous form of exposure. Chemical stripping or wet sanding with HEPA extraction are the only acceptable methods.
What is medical surveillance under CLAW?
A doctor-led assessment including a baseline blood lead test before work starts, then periodic re-tests. Action levels (50 µg/dl for adult males) trigger removal from work. Records must be kept for 40 years.
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