Lawn mower faults are usually straightforward mechanical issues — blades, belts, carburettors, and batteries. Given that decent lawnmowers cost £150–£600, repair is almost always the sensible first step. Electric and robotic mowers have fewer mechanical parts to fail, while petrol mowers need more regular maintenance but are often easier and cheaper to repair.
Average UK labour and parts costs — always get multiple quotes from local engineers.
A petrol lawn mower should last 8–15 years with proper maintenance — annual servicing, blade sharpening, and clean air filters. Cordless electric mowers last 5–8 years before batteries degrade. Robotic mowers typically last 8–12 years. Winter storage (clean, dry, fuel drained on petrol models) dramatically extends lifespan.
Lawn mowers are almost always worth repairing rather than replacing. Blade replacement, belt repairs, and carburettor work are all relatively cheap and keep a mower running for many more years. The main exception is an engine failure on a very cheap mower — at that point, it may be simpler to replace the whole unit.
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The type of lawn mower you own affects both repair costs and long-term value. Petrol mowers are the workhorse of UK gardens — they handle larger lawns well and are widely serviced by garden machinery specialists. Parts are standardised and affordable, making them the easiest to repair. Cordless electric mowers from brands like Bosch, Makita, and EGO have fewer moving parts but rely on lithium-ion batteries that degrade over time — replacement batteries cost £40–£150 depending on the brand. Robotic mowers from Husqvarna, Worx, and others are growing in popularity but repairs often require manufacturer involvement and specialist diagnostics. For most UK homeowners with average-sized gardens, a cordless electric mower strikes the best balance between performance, maintenance, and running costs.
Running costs vary dramatically between mower types. A petrol mower costs roughly £20–£40 per season in fuel for an average UK garden, plus an annual service at £60–£100. Cordless electric mowers cost pennies per charge — typically under £5 per season in electricity — but replacement batteries every 3–5 years add £40–£150 to the long-term cost. Robotic mowers use very little electricity (roughly £10–£20 per year) but have higher upfront costs and may need annual blade kit replacements at £20–£40. If you're environmentally conscious, it's worth noting that the UK government has been encouraging a shift away from petrol garden equipment due to emissions concerns. Battery-powered mowers are now competitive with petrol on all but the largest lawns.
Yes, in almost all cases. Common repairs like blade replacement (£20–£50), belt replacement (£30–£60), and carburettor work (£40–£100) are all well under the cost of a new mower. Even on a budget mower, most repairs make financial sense.
Lawn mower repairs typically cost £20–£100 for most common faults. Blade sharpening is cheap at £20–£30. Carburettor and drive belt repairs run £40–£100. A full annual service from a garden machinery specialist costs £60–£100.
Petrol mowers last 8–15 years with regular maintenance. Cordless electric models last 5–8 years before battery issues develop. Proper winter storage — cleaning, fuel drain, dry conditions — is the single biggest factor in longevity.
A petrol mower that won't start is usually a stale fuel or carburettor issue (especially after winter storage), a fouled spark plug, or a dirty air filter. Try fresh fuel and a new spark plug first — these two fixes solve the majority of 'won't start' problems.
Repair cost estimates are UK averages sourced from Checkatrade, Which?, and MyBuilder. Prices include labour and VAT. Always get at least two quotes from qualified tradespeople before proceeding with any repair.
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