Our verdict
The mower in the corner of B&Q for £159. Not glamorous, not durable, but cheaper than half the cordless options for similar capability. Treat as semi-disposable — five seasons is realistic.
Pros & cons
Pros
- Cheapest petrol mower with a brand name
- Light at 21kg — easy to push
- Mountfield engine is well-supported
- Push-only means fewer parts to fail
Cons
- 41cm cut narrow for typical UK gardens
- 100cc engine works hard on long grass
- 40L box small
Full specs
| Type | Petrol |
|---|---|
| Cut width | 41 cm |
| Engine / Power | Mountfield RM45 OHV 100cc |
| Weight | 21 kg |
| Deck | Steel |
| Self-propelled | No |
| Rear roller | No |
| Mulching | No |
| Cutting heights | 6 positions |
| Bag capacity | 40 L |
| Suited to lawn | Small |
| Noise level | 95 dB |
Buying second-hand
£40–80 used. Massive supply, never overpay. Pull-start should fire on first pull when warm. Plastic deck cracks around the wheel mounts after 6+ years — flip and inspect. A clean unit at £50 is a steal for an emergency replacement.
Where to buy the Mountfield HP41
We don't take affiliate commissions. These are direct retailer searches you'd type into Google anyway.
External links open in a new tab. We don't track clicks or take commission. Prices and availability change — verify on the retailer site before buying.
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 41cm 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 Mountfield HP41 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.
Owned a Mountfield HP41?
Send us a one-line tip — what broke, what worked, what you'd buy next time. We curate and publish under your verdict (with credit if you want).
Send a tip →Weekly mower-watcher email — launching 2026
Five interesting Marketplace listings, one engine spotlight, one deal alert when a model drops at a major UK retailer. Join the waitlist and we'll email you the first issue when it launches.
No affiliate links. No upsells. Unsubscribe anytime in one click.