Our verdict
A genuine bargain on the Argos shelf. Stripes from a £150 corded mower is rare — it is the obvious step up from a Flymo or Bosch budget unit. Build quality is the trade-off.
Pros & cons
Pros
- Rear roller for stripes at sub-£150
- 40cm cut decent for medium lawns
- Argos availability
- 5-year S&J warranty new
Cons
- Plastic build
- Motor noisier than Bosch equivalents
- Resale value is poor
Full specs
| Type | Electric |
|---|---|
| Cut width | 40 cm |
| Engine / Power | 1800W motor |
| Weight | 15 kg |
| Deck | Plastic |
| Self-propelled | No |
| Rear roller | Yes (stripes) |
| Mulching | No |
| Cutting heights | 6 positions |
| Bag capacity | 50 L |
| Suited to lawn | Medium |
| Noise level | 78 dB |
Buying second-hand
£30–80 used. Cable and motor noise are the two checks. Roller bearings should turn freely. The handle latches are plastic — they break and replacements are not stocked, so check before buying.
Where to buy the Spear & Jackson S1840EM
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Repair-cost reference
UK 2026 ballpark prices for the parts you're most likely to need on this mower. OEM is dealer-genuine; aftermarket is what you'll find on eBay or generic small-engine suppliers. Use these to sense-check any quote and to negotiate on used buys.
| Part / job | OEM | Aftermarket |
|---|---|---|
|
Replacement 40cm blade
Annual sharpening is free; replace when bent or cracked.
|
£24–£32 | £8–£12 |
Fair-offer calculator
Tell us about a specific used listing for the Spear & Jackson S1840EM you're looking at. We'll compute a fair offer range from our used-market data and the condition signals you provide.
Calculations are guidance, not gospel. Used-market prices vary by region (Scotland is typically 10–15% cheaper than the South-East), season (October cheapest, March most expensive), and seller motivation.
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