Our verdict
For people who care about their lawn the way bowling-green groundsmen do. The Allett Liberty is what the Suffolk Punch wishes it were — modern, cordless, and with interchangeable cassettes that turn it into a scarifier. A specialist tool for a specialist lawn. If that's you, nothing else competes.
Pros & cons
Pros
- Cylinder cut + cordless = pristine ornamental finish
- British-built Allett pedigree
- Interchangeable cassettes (cylinder/scarifier/brush)
- Battery silent and clean
Cons
- Cylinder requires short fine grass — useless on tussocky lawns
- £1400 for a 35cm cut
- Allett service network limited
Full specs
| Type | Cordless |
|---|---|
| Cut width | 35 cm |
| Engine / Power | Allett 56V brushless |
| Weight | 24 kg |
| Deck | Plastic |
| Self-propelled | No |
| Rear roller | Yes (stripes) |
| Mulching | No |
| Cutting heights | 6 positions |
| Bag capacity | 40 L |
| Suited to lawn | Small |
| Noise level | 75 dB |
Buying second-hand
£600–1000 used. Cylinder sharpness is non-negotiable — test cut paper. Allett re-grind service exists at their factory; £80 turnaround. Confirm cassette set is complete (cylinder is mandatory; scarifier and brush are optional but valuable). Reset Allett account if app-connected.
Where to buy the Allett Liberty 35
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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 35cm blade
Annual sharpening is free; replace when bent or cracked.
|
£24–£32 | £8–£12 |
|
Replacement battery
Wear part — typical 3–5 years to 80% capacity. The biggest single repair cost on any battery mower.
|
£90–£180 | £55–£120 |
Fair-offer calculator
Tell us about a specific used listing for the Allett Liberty 35 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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