First aid kit rules for UK construction sites — what BS8599-1:2026 actually changes

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Most builders we know discover the gap in their first aid kit on the day they need it, which is the worst possible day to find out the eye wash bottle expired in 2022 and the saline pods are gone. We're going to walk through what the current standard actually requires, what changed in the 2026 amendment, and which kits hold up under proper use.

This is going to read more practical than salesy. There's no 'top 10' list here. The British Standard tells you what kit you need based on your site risk and headcount — the question is how to comply without buying the wrong thing twice.

The standard, briefly

BS8599-1 is the British Standard for workplace first aid kit contents. It was published in 2011, updated in 2019, and amended in early 2026 (BS8599-1:2019+A1:2026). Compliance with BS8599 isn't legally mandatory the way the Health and Safety at Work Act is, but it's the benchmark HSE inspectors use to judge whether your kit is 'adequate' under the Health and Safety (First-Aid) Regulations 1981. Adequate is the legal word, BS8599 is the practical answer.

The 2026 amendment made three things more explicit:

1. The risk assessment drives the kit size, not the headcount alone. A six-person bricklaying gang on a deep-foundations job needs a larger kit than a thirty-person office.

2. Foil blanket and burns dressing quantities increased. The old standard had one foil blanket; the amended version has two for medium kits, four for large. Practical recognition that one is rarely enough for shock or hypothermia management.

3. Eyewash provisions were clarified — the kit eyewash is for general flush use; if you're working with chemicals you need a separate dedicated eyewash station, not the kit pods.

Construction is classed as 'high risk' for kit-sizing purposes. That matters because the headcount-to-kit-size table is twice as conservative for high-risk as for low-risk. A 25-person construction site needs a Large kit. A 25-person office needs a Small.

The kits we'd actually buy

Reliance Medical BS8599-1 Medium — for the typical site van

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The Reliance Medical Medium is the kit we'd point most working builders at. It's properly compliant with the current BS8599-1, the case is a wall-mountable plastic box (so it'll survive being kicked around the back of a Transit), and the contents list is genuinely complete rather than padded with cheap plasters to hit the headline 'piece count'.

What you actually get: 60 sterile plasters, two saline eyewash pods, four pairs nitrile gloves, two foil blankets, two burns dressings (small and medium), four sterile dressings of varying sizes, one resus face shield, plus the small consumables (tape, scissors, finger dressing).

What the long-term reviews say: the contents date well (most components have a 5-year shelf life from manufacture), Reliance is a known brand for refill packs so when something runs low you can buy individual replacements rather than a whole new kit, and the box closes properly even after multiple openings — which sounds like a small thing until you've had a kit fall open in a van.

For a site of up to 25 people doing standard construction work, this is the right size. Above 25, step up to Large.

Safety First Aid BS8599 Large — for bigger sites

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For a project with more than 25 people, or a site that includes higher-risk operations like demolition or working at height, the Large kit is what BS8599 calls for. The Safety First Aid version is well-priced and properly stocked.

What you get over the Medium: more of everything. 100 plasters instead of 60. Four saline pods instead of two. Two large burns dressings on top of the small/medium. More gloves. An extra foil blanket. The case is bigger and properly wall-mountable.

Long-term feedback flags one thing — the case lock is a simple latch rather than a key, which is fine for site offices but means the kit can be 'borrowed' if it's not under direct supervision. For a busy site office that's a realistic problem. Solution is a tamper-evident seal which costs about £3 for a strip of 50 and stops accidental pilfering.

Qualicare 138-Piece BS8599 — when piece count matters more than brand

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The Qualicare comes up a lot in builder forums as the budget BS8599-compliant option. 138 pieces in a hard case, properly compliant labelling. We'd flag it for the builder running multiple small sites who needs three kits rather than one.

What's good: the per-kit price is genuinely lower than the Reliance and Safety First Aid options, you get the full BS8599 contents, and the case is sturdier than the price suggests.

What's worth knowing: refill packs aren't quite as easy to source as for Reliance. When a component runs low you can replace it individually but you might end up buying from a different brand. Not a problem in itself but worth being aware of for the audit trail.

What's NOT in any of these kits — and you'll need it

Plasters and bandages are great. They are not what most construction injuries actually need. Three things missing from any standard BS8599 kit that you should add separately:

1. A proper eyewash station, not just the pods. If you're cutting block, drilling, or working with chemicals, you need a 500ml or 1L bottle on a wall mount. About £15. Saves a hospital trip when you get grit in an eye.

2. A trauma dressing or Israeli bandage. The standard BS8599 dressings are for cuts and abrasions. They are not designed for serious bleeds. One trauma bandage in the kit for catastrophic bleeding is cheap insurance — about £8.

3. A folding triangular bandage for sling/immobilisation use. Most kits have small triangular bandages. A larger 90cm one is more useful for actual injuries.

Total cost to upgrade a Medium kit to genuinely site-ready: about £25. Worth doing before you need it.

Maintenance — the bit everyone forgets

Check the kit monthly. Replace anything used. Check expiry dates on saline, burns dressings, and resus shields. Most kits have a check sheet inside — actually use it.

The BS8599 kits all have a 'shelf life' on the saline pods of 3-5 years. The dressings themselves last 5+ years if unopened. The plasters and gloves are essentially indefinite if dry. So the kit doesn't expire wholesale — but parts of it do, and the saline is the part most people miss.

Required by law vs adequate in practice

HSE doesn't prescribe a specific kit. They require 'adequate and appropriate' provision. BS8599-compliant is the easiest way to demonstrate that on an audit. If you're contracted to a major builder or working under CDM, your principal contractor will probably specify BS8599 as a minimum.

Don't buy a £15 'first aid kit' from a discount supermarket and tell yourself you've ticked the box. You haven't. A non-BS-compliant kit is a documented failure on an audit.

The full first aid kits category covers van-specific kits, vehicle BS8599-2 kits, and small lone-worker kits — the choice depends on whether the kit lives in a van or a site office.