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Self Propelled Petrol Lawn Mower For Slopes & Steep Hills 2024

Written By: William
Last Updated on June 10, 2024

The Best Lawn Mower For Steep Slopes Reviews

Our Favorite!
Webb WER410SP 16”/41cm Self Propelled Rotary Petrol Lawnmower, 132cc 4-Stroke Engine, 7 Cutting Heights, 45L Collection Bag – 2 Year Guarantee
  • LIGHTWEIGHT AND MANOEUVRABLE SELF-PROPELLED FOUR WHEEL MOWER FOR SMALLER LAWNS – designed to navigate paths, trees, statues and flower beds, this lightweight mower cuts a wide 41cm swathe for faster mowing of rough or smooth grass without needing to push
  • EASY-START, SMOOTH AND ROBUST 132cc 4-STROKE ENGINE - the DVO130 engine in this 41cm lawnmower is designed and developed by Webb for outstanding performance, minimal vibration, low fuel consumption and long life
  • 7 CUTTING HEIGHTS AND 2 WAYS TO DISPOSE OF CLIPPINGS- simply raise the single lever to lower the blade for cutting lengths of grass from 25mm to 75mm. Cuttings can be collected or rear discharged onto the grass
  • LARGE BAG NEEDS EMPTYING LESS OFTEN – mesh design makes for a better airflow so the generous 45 litre bag fills up completely before it needs emptying, which means you have fewer trips to the compost heap and finish your mowing in less time
  • GENUINE PRODUCT FROM AN ESTABLISHED BRITISH BRAND – Webb has a long-standing reputation for superior quality products that are simple to use and easy to maintain, and it has a large UK-based customer service team ready to help with any aftercare issues
Our Runner Up!
Mountfield Electress 30Li Cordless Lawnmower, 30cm cutting width, Battery-powered, Up to 150m², Includes 30L grass collector, 20V 4Ah battery and charger included
  • Battery-powered and hand-propelled lawn mower with a 30cm cutting width, Lightweight chassis for manoeuvrability, Ideal for small- or medium-sized gardens, 40L grass collector
  • Easy to use: Hand-propelled, Three cutting height positions from 30-70mm, adjustable on the axels , Grooved wheels for traction, Rust-proof chassis
  • 20V 4Ah Lithium-ion battery and charger included - up to 20mins run time on one charge, Light pack weight of 10.94kg, Max. working area 150m, 2-year manufacturer's warranty
  • Lightweight sturdy polypropylene chassis, 30 litre grass collector is easy to remove and empty using the top handle, Handles fold-over for compact storage and easy transportation
  • Contents: 1x Mountfield 30Li Cordless Lawnmower, 1x 4Ah 20V Lithium Ion Battery, 1x Charger, 1x 30L Grass Collector
Bosch Rotak 32R Electric Rotary Lawnmower with 32cm Cutting Width
  • The Rotak 32 lawnmower is ideal for small and mid-sized gardens, height of cut 20 – 60 mm
  • Thanks to its grass comb, the Rotak 32 cuts effortlessly along walls, flower beds and lawn edges
  • Weighing just 6.8 kg, it is easy to steer around obstacles and transport. Handle type: Standard
  • Also suitable for tall grass thanks to its hardened steel blade and powerful 1200 W motor
  • Items included: Rotak 32, 31-litre grass box, cardboard box (3165140557450)
  • Note : Blade has to be tightened before every use.
  • Sound pressure level 79 dB(A); Sound power level 93 dB(A)

Short On Time?

Our Recommended The Best Lawn Mower For Steep Slopes Is The Webb Classic WER410SP Self Propelled 4 Wheel Petrol Rotary Lawnmower!

If you have steep banks on your lawn or maybe your garden is on a hill, finding the appropriate mower is not a simple task, you want to make sure your mower is light enough to handle and push, but also that it has enough power to get up the steep slopes. 

Battery mowers can often be great for steep slopes but lack the same power as self-propelled petrol mowers for tackling hills. 

So to help you out, we’ve rounded up some of our favourite lawn mowers for steep slopes below, reviewing them individually to see which mower is right for your hilly garden.

Our Favourite Lawn Mower For Steep Slopes – The Webb Classic WER410SP Self Propelled Petrol Rotary Lawnmower

If you have a medium-sized garden on a steep slope and can’t find the right powered mower with still a lightweight, this Webb classic petrol mower could be the best pick for you. 

Top features of the petrol lawnmower are a 41cm cutting width and a four-stroke DVO130 engine boasting low fuel consumption, the powerful lawn mower further has seven cutting heights ranging between 25-75mm allowing you to cut both shorter and longer grass. 

A 45-litre grass bag is included with the steep hill lawn mower for collecting clippings, however, you can rear discharge the clippings as mulch too on this mower. The mower is also self-propelled with plenty of power to help get you up those slopes without too much pushing. 


Overall, this Webb Classic self-propelled petrol mower is one of our favourite picks if you have a type of slope that needs a high powered simple use mower, the powerful model is easy to move around thanks to its self-propelled system and perfect for a medium-sized lawn. 

Downfalls of this Webb petrol model are its grass collection box opening which can be narrow, allowing you to spill clippings easily, the lawn mower additionally is quite heavy to move from the shed and around.


  • Wide 41cm cutting width for medium gardens. 
  • Seven cutting heights between 25-75mm.
  • 45-litre grass bag. 
  • Self-propelled system for sloped banks.
  • Rear discharge option. 
  • Four-stroke engine.


  • Can be heavy to move around. 
  • Grass collection opening is narrow.

Our Runner Up – The Mountfield SP41 Petrol Lawnmower

As a second pick, the Mountfield petrol lawn mower is a good choice for smaller lawns with hills, featuring a self-propelled system paired with a Stiga ST120 Autochoke petrol engine for power. 

The main features of this mower are its adjustable cutting heights ranging between 22-80mm, this can be adjusted in five different positions. The 39cm cutting width is perfect for small and medium gardens with grooved wheels which allow for better grip on dodgy slopes. 

Design-wise the lawn mower has a lightweight rust-proof chassis and 40L grass collector box for grass clippings, the handles of the lawnmower fold over too for easier storage.


We rate this Mountfield petrol lawnmower as an excellent powerful mower for hilly gardens thanks to the engine for power yet lightweight design since the mower is mainly made out of plastic, allowing you to get up steep slopes with ease. 

Drawbacks of this petrol lawnmower are its build quality which is reported to have a cheap feel due to its mostly plastic design. 


  • Great for small-medium lawns with 39cm cutting width. 
  • Light mower weight. 
  • Self-propelled. 
  • Stiga auto choke engine for power.
  • Easy-grip wheels. 
  • Adjustable cutting heights between 22-80mm. 
  • 40L grass box. 
  • Folding handlebars.


  • Cheap build quality. 

Hyundai HYM430SPE Self Propelled Electric Start Petrol Lawnmower

This Hyundai self-propelled petrol lawn mower has an OHV 4-stroke Euro 2 petrol engine for power and the option of an electric start with a push-button for ease of use, there is also a recoil start option for backup. 

Notable features of the Hyundai mower are its 42cm cutting width making the mower ideal for medium gardens, it also has an adjustable cutting height range between 25-75mm which can be set in six different positions. The cutting deck is made out of steel for durability. 

For the design, this Hyundai petrol lawnmower comes with a 45L grass box for collecting grass clippings and also has the option to rear discharge, side discharge or mulch grass clippings. The four wheels of the petrol lawn mower allow for better control and it has OPC which stops the mower from running automatically when the handles are released. 

The soft grip handles of the lawn mower fold down for easier storage. 


To conclude, although expensive, this Hyundai lawn mower beats the average mower when it comes to use on steep slopes thanks to its four wheels and four-stroke engine, giving you the ultimate control and power to get up hills. 

We also like this mower due to its feature-packed design, with multiple discharge options and an electric start for ease of use. 

Negatives of this Hyundai petrol lawn mower are its adjustable cutting heights, with the lower cutting range being limited. The lawnmower further is reported to be quite a heavy mower weight. 


  • 42cm cutting width for medium gardens. 
  • Hyundai OHV four-stroke engine. 
  • 45L grass collection box. 
  • Adjustable cutting heights between 25-75mm. 
  • Multiple discharge options for grass clippings. 
  • OPC safety control.
  • Four wheels. 
  • Foldable handles.


  •  Limited lower cutting heights. 
  • Heavy mower weight. 

Greenworks Cordless Lawnmower 

If you are not keen on petrol lawnmowers and you are looking for a batter powered hilly gardens mowers model, this Greenworks cordless mower could be worth checking out. 

Top features of the cordless mower are its 40V lithium-ion battery for power, the mower can take up to two of these batteries making it suitable for mowing an area up to 750m2 and further has variable speed control. Central height adjustment on the lawn mower allows you to pick adjustable cutting heights between 20-80mm. 

The 46cm cutting width of the cordless lawnmower makes it suitable for medium and large gardens and also has an option for side discharge and rear discharging lawn clippings, the clippings can also be collected in the mowers 55L grass box.


Overall, if you want to avoid heavy petrol mower types but still have enough power to get over the occasional slope, we would highly recommend the Greenworks cordless lawnmower. 

Its variable speed makes the mower easy to control on uneven terrain and we also like the multiple discharge options for fertilising your lawn. 

Downfalls of this cordless lawn mower are batteries which are said to lose charge quickly, lasting under an hour. 


  • Large cutting width. 
  • Variable speed control. 
  • Adjustable cutting heights between 20-80mm. 
  • 55l grass collector. 
  • 40V double battery system. 
  • Multiple discharge options.


  • Batteries lose charge fast. 

Einhell GC-PM 40/2 S Petrol Lawn Mower

The Einhell petrol lawn mower features a GC-PM 40/2 S four-stroke petrol engine with a 40cm cutting width and idle speed of 2,900rpm, making it ideal for sloped lawns of medium size. 

For variable cutting, this affordable mowers model has a 7 option cutting range between 25 and 75mm and a 45-litre grass box with a fill indicator to show when your clippings need emptying. The rear-wheel drive of the mower allows you to work more comfortably. 

This mower has a plastic deck design to keep it lightweight and a foldable guide bar for easy storage.


We would highly recommend the Einhell petrol mower if you want a more affordable petrol model for a medium-sized lawn, it’s also good for taking up slopes due to the lighter weight plastic design. 

This lawnmower is also very easy to use and assemble, making it great for mower beginners who don’t want a complicated model.


  • Seven cutting heights ranging between 25 and 75mm. 
  • Great for medium size gardens. 
  • Rear-wheel drive. 
  • Lightweight. 
  • Folding handle for easier storage. 
  • 45-litre grass box with full indicator. 

Which Is The Best Lawn Mower For Steep Slopes?

To conclude our best mower pick reviews, our number one lawnmower for tackling hilly gardens and steep slopes is the Webb Classic WER410SP Self Propelled Petrol Rotary Lawnmower. 

This Webb lawnmower is perfect for heavier duty work in a medium-sized garden thanks to its four-stroke engine and self-propelled power which helps you get up inclines with ease. 

As a runner up, we recommend checking out the Mountfield SP41 Petrol Lawnmower too, this lawnmower is better for smaller sized gardens and is easy to use thanks to its plastic design which keeps the mower light in weight, yet powerful due to its Stiga auto choke petrol engine.

We would suggest picking the Webb Classic petrol lawnmower out of the two if you have a larger lawn size with very steep slopes due to its extra power and more durable build.



About the author 

Written by William
I have always had a passion for gardening and that with a background in selling lawn mowers for the past 10 years, I have become very knowledgeable in all types of gardening tools. The site was created as a hub where I can review and write about all of the tips around gardening.
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