Published 2026-01-14 · Slip-Tests UK
How UK insurers actually think about slip risk
Every commercial liability insurer in the UK uses some form of risk scoring at renewal — blending industry sector, historical claims, loss ratio, control environment, and documented risk-management practices. Slip incidents are typically the single largest category of public liability claims, and a significant proportion of employer liability claims in retail, hospitality, and food manufacturing.
Underwriters know this. What they do not always know — unless you tell them — is whether your business is actively managing the risk or passively carrying it.
Premium discounts: the real range
The range we see across UK insurance renewals for clients with documented annual UKAS testing is typically 5% to 20% below a comparable business without testing. The biggest percentage wins are in mid-sized commercial portfolios (£5m – £50m turnover), where an underwriter has scope to exercise judgement but is not so large that pricing is driven purely by claims ratio.
On larger portfolios, the effect shows up less in premium percentage and more in retention levels, sub-limits, and claims-handling terms — all of which can be worth more than a headline premium discount over a renewal cycle.
What insurers want to see
Based on conversations with UK brokers and insurers across multiple renewals, the checklist that triggers the best pricing treatment is: documented UKAS-accredited BS 7976 / BS EN 16165 testing within the past 12 months across all main customer areas; evidence that sites testing below PTV 36 in wet conditions have been remediated or are under an active action plan; a written floor-safety policy that references PTV thresholds; and documented cleaning and matting regimes aligned with the testing findings.
Any one of these alone helps. All four together typically move you into the best-in-class category for your sector.
How to present testing data to your broker
Do not just dump a stack of reports on your broker. Produce a one-page summary showing: sites tested, test dates, PTV ranges achieved, any remediation actions taken, and the next testing cycle dates. Include the UKAS Schedule Number of your testing provider (ours is 7933). Underwriters are time-poor — a concise summary with a clear audit trail underneath is far more persuasive than a box of reports.
The broker relationship
Your broker is your advocate to the underwriter. Brief them on your slip-testing programme — give them the summary, the schedule numbers, and the next steps. A well-briefed broker can shop the risk around the market and present the data to each insurer in the form they prefer.
In a soft market, this may be marginal. In the current UK commercial insurance market — which is hardening on employer and public liability — a well-presented slip-testing programme is one of the few genuine levers businesses have on pricing.
Beyond premium: claims handling
The most valuable insurance benefit of documented UKAS testing is not premium reduction. It is what happens when a claim is actually made. Insurers with documented pre-incident PTV data can reject or drastically reduce claims at pre-action stage — saving legal costs, avoiding claims inflation, and protecting your loss ratio for next renewal.
A single defended slip claim, informed by pre-existing UKAS data, can protect premium pricing for five or more renewals. That is the real return on a £1,000 annual test.