As the grass stops growing and winter sets in, many gardeners simply push their lawn mower into the shed and forget about it until spring. Unfortunately, improper winter storage is one of the main reasons lawn mowers fail to start or suffer costly damage when the new season arrives.
Whether you own a petrol, electric, cordless, or ride-on mower, taking a little time to store it correctly will save money, extend its lifespan, and ensure it’s ready to go when spring returns.
Why Proper Winter Storage Matters
Cold temperatures, damp conditions, and leftover fuel can all damage key components of your mower. Common winter-related issues include:
- Corroded engine parts
- Flat or damaged batteries
- Blocked carburettors
- Rusted blades and decks
The good news? Most of these problems are completely avoidable.
Step 1: Clean Your Lawn Mower Thoroughly
Before storing your mower, give it a proper clean:
- Remove grass clippings from the underside of the deck
- Clean around the blades and air vents
- Wipe down the exterior to remove dirt and moisture
Dried grass traps moisture, which can lead to rust over winter. Make sure the mower is fully dry before moving on.
Step 2: Deal With the Fuel (Petrol Mowers)
Petrol left sitting in the tank over winter can degrade and block the carburettor.
You have two options:
- Run the tank empty until the engine cuts out
- Add a fuel stabiliser if you plan to leave fuel inside
If you’re unsure which is best for your model, running it dry is usually the safest option.
Step 3: Disconnect or Remove the Battery
For cordless and ride-on mowers:
- Remove the battery if possible
- Store it indoors in a cool, dry place
- Avoid freezing temperatures
For ride-on mowers with lead-acid batteries, consider keeping the battery on a trickle charger to prevent it from going flat.
Step 4: Check and Protect the Blade
Winter is a great time to:
- Inspect the blade for damage
- Sharpen it ready for spring
- Apply a light coat of oil to prevent rust
A sharp blade not only improves cutting performance but also reduces strain on the engine.
Step 5: Store in a Dry, Sheltered Location
Where you store your mower matters just as much as how you prepare it.
Ideally, store your mower:
- In a garage, shed, or storage unit
- Off bare concrete floors if possible
- Covered with a breathable mower cover
Avoid damp environments, as moisture is the biggest enemy during winter storage.
Step 6: Book a Winter Service (Optional but Recommended)
Winter is the perfect time to service your lawn mower. Engineers are often less busy, and your mower will be fully prepared for the busy spring season.
A professional service can include:
- Oil changes
- Spark plug replacement
- Carburettor cleaning
- Full safety checks
Common Winter Storage Mistakes to Avoid
- Leaving fuel in the tank without stabiliser
- Storing batteries in freezing conditions
- Putting the mower away dirty or wet
- Using airtight plastic covers that trap moisture
Final Thoughts
Storing your lawn mower correctly over winter doesn’t take long, but it can prevent expensive repairs and frustration when spring arrives. A little preparation now means your mower will start easily, run smoothly, and last longer.
If you need mower covers, batteries, oils, or replacement parts, Mowers Online has everything you need to keep your machine protected all year round.
