Best safety boots for electricians in the UK, and what the EN ISO 20345 codes mean

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The best safety boots for electricians are the Timberland PRO Splitrock XT at around £90: a composite toe cap, S3 rating, waterproof membrane and ESD-rated soles, with no metal anywhere to conduct cold through the toe or set off the detector at a data centre door. If comfort over a long day matters most, the DeWalt Titanium S3 at around £80 is the best-reviewed boot in this list. For domestic work where you are in and out of a van forty times a day, the pull-on Amblers FS32 at around £50 is an S1P that is quicker to get on than anything laced. The codes on the box decide which of those you should be wearing, so this piece starts there.

What the EN ISO 20345 codes mean

Every safety boot sold in the UK is marked to EN ISO 20345. The letters after it are a stack of features, each building on the last.

Code	What it adds	Who it suits
SB	Toe cap tested to 200 joules impact and 15 kN compression. That is all.	Nobody in the trades
S1	SB plus closed heel, antistatic sole and an energy-absorbing heel	Dry indoor work with no puncture risk
S1P	S1 plus a penetration-resistant midsole	Domestic electricians, workshops, dry sites
S2	S1 plus an upper that resists water penetration and absorption	Wet work without puncture risk
S3	S2 plus midsole and a cleated outsole	Building sites, outdoor and wet work

The slip codes are separate. SRA means the sole passed on a ceramic tile with soapy water, SRB on steel with glycerol, SRC both. The 2022 revision of the standard folded basic slip resistance into every boot and added new letters for non-metal midsoles, but the boots on the shelf still mostly carry the older codes, so SRC is what you will see.

The electrical bit, which is not what people think

"Antistatic" on a boot means the sole has a resistance between 100 kilohms and 1,000 megohms. It is there to let a static charge drain to earth through your feet so you do not spark near something that minds. ESD footwear, tested to the EN 61340 family, has a tighter resistance range for electronics environments. Both are designed to conduct, in a controlled way. Neither insulates you from a live conductor.

Footwear that does insulate is a different standard, EN 50321, and it is specialist kit for planned live working. UK practice for the electrician on a domestic or commercial job is to isolate, lock off and prove dead, and no boot on this list changes that. What a composite toe cap does give you is the absence of a lump of steel an inch from your toes, which in winter is the difference between feet that work and feet that do not, and the ability to walk through a metal detector without unlacing.

The boots

Timberland PRO Splitrock XT

Composite toe, S3, a waterproof membrane and Timberland's anti-fatigue sole, which is a moulded footbed that gives back some energy on hard floors. ESD protection is listed. It is chunky, it is the dearest boot here, and the sole wears faster on concrete than some rivals. Against that it is the lightest S3 with no metal in it, and for a sparky who spends half the day on steps and the other half kneeling it is the right compromise.

DeWalt Titanium S3

Steel toe, S3, waterproof, SRC-rated sole and an anti-fatigue insole. 4.6 stars from nearly 4,000 reviews is a signal you cannot buy. The honey wheat leather shows every mark and the steel cap gets cold, but for an electrician on new-build sites who wants one boot that lasts, this is the safe money.

DeWalt Newark S3

The Newark at around £60 is the Titanium's plainer sibling: steel toe, S3, water-resistant rather than fully waterproof, good ankle support, and a break-in period. Common on sites for a reason.

Scruffs Switchback S3

Steel toe, S3, fully waterproof, and a memory foam insole that makes the Switchback the most comfortable boot under £60 in this list at around £50. The reviews question durability past a year of hard use and the sizing runs large, so try a half size down. For a first-year apprentice it is a sensible buy.

Amblers FS32

Pull-on, S1P, steel toe, antistatic, and available in a wide fit. No laces means it is on in two seconds and off at the door of a client's house, which matters when you are doing six domestic jobs a day. No waterproofing and no S3, so it is a domestic and dry-site boot, not a groundworks one.

Apache AP300

The AP300 at around £30 is an S3 steel toe boot for less than a decent pair of gloves. Water-resistant leather, midsole, oil-resistant sole. The materials will not last like the Timberland's and there is less cushioning, but for a spare pair in the van or a boot for occasional site days it does the job.

Side by side

Boot	Price (around)	Rating and toe	Water	Best for
Timberland PRO Splitrock XT	around £90	S3, composite, ESD	Waterproof membrane	Electricians who want no metal
DeWalt Titanium S3	around £80	S3, steel	Waterproof	Site work, best comfort
DeWalt Newark	around £60	S3, steel	Water resistant	General site boot
Scruffs Switchback	around £50	S3, steel	Waterproof	Apprentices, comfort on a budget
Amblers FS32	around £50	S1P, steel	None	Domestic work, pull-on
Apache AP300	around £30	S3, steel	Water resistant	Spare pair, occasional site days

What we'd buy

One pair for everything: the Timberland PRO Splitrock XT. Mostly sites: the DeWalt Titanium S3. Mostly domestic: the Amblers FS32, with the Apache AP300 in the van for the days a site card is needed. Whichever you pick, put a pair of decent knee pads in the same basket, because kneeling at a consumer unit in S3 boots on a concrete floor is where the day's aches come from, and best knee pads for electricians covers those. Current prices are on the safety boots for electricians list, and for the rest of the kit there is the complete electrician kit list.

Frequently asked questions

What are the best safety boots for electricians?

The Timberland PRO Splitrock XT: composite toe, S3, a waterproof membrane and ESD-rated soles, at around £90. No metal means nothing to conduct cold or set off a detector, and the anti-fatigue sole suits a day split between van, loft and consumer unit. The DeWalt Titanium S3 is the comfort-first alternative.

Do electricians need non-conductive safety boots?

Be careful with the phrase. Antistatic and ESD boots are designed to let static bleed away through the sole, which is the opposite of insulating. They do not protect you from a live conductor. Electrically insulating footwear for live work is a separate standard, EN 50321, and UK practice is to isolate and prove dead rather than rely on boots.

What does S3 mean on a safety boot?

Under EN ISO 20345, S3 means a 200 joule toe cap, closed heel, antistatic sole, energy-absorbing heel, an upper that resists water penetration, a penetration-resistant midsole and a cleated outsole. S1P is the same without the water-resistant upper. S1 has no midsole at all.

Is a composite toe cap as safe as steel?

Both must pass the same 200 joule impact and 15 kN compression tests to carry the EN ISO 20345 mark. Composite is lighter, does not conduct cold and does not trigger metal detectors. Steel is thinner for the same protection and usually cheaper. For an electrician the composite advantages are worth having.

Can an electrician wear S1P boots on a building site?

Sometimes. Many principal contractors specify S3 because the site is wet and the midsole is required. S1P has the midsole but no water-resistant upper. Check the site rules before you turn up. For domestic work, S1P is usually plenty and lighter on the foot.