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10 Best Petrol Lawnmowers 2025 in the UK

Hyundai 20"/51cm 196cc Electric-start Self-propelled Petrol Lawnmower, 6 Cutting Heights, Large 70l Grass Collector, Foldable Handles, 3 Year Warranty

Engine Power: 196cc
Cutting Width: 20 inches
Cutting Height Adjustment: 6 adjustable heights
Self-Propelled vs. Push: Self-propelled
Grass Collection Options: 70L bag, mulching option
Weight and Maneuverability: 43.8 kg, heavy

Hayter Harrier 56 Lawnmower Petrol Variable Speed Electric Start Rear Roller 56cm (576B)

Cutting Width: 56 cm
Cutting Height Adjustment: 7 positions
Self-Propelled vs. Push: Self-Propelled
Grass Collection Options: Vari-Pitch tech
Fuel Tank Capacity: Moderate
Weight and Maneuverability: 52 kg, challenging terrain
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Our Top Picks

#1

Winner

Mountfield SP41 Petrol Lawnmower, Self-Propelled, 39cm cutting width, 123cc ST120 Autochoke petrol engine, Up to 250m², Includes 40L Grass Collector

Rating
9.9
Chosen by1,499
Cutting Height Adjustment
Self-Propelled vs. Push
Weight and Maneuverability
Cutting Height Adjustment
Cut height adjustments make a significant difference, offering a good range for various lawn conditions.
Self-Propelled vs. Push
Self-propelled mechanism is effective, providing flexibility for different mowing tasks.
Weight and Maneuverability
Great lawn mower that's easy to start and lightweight.

The Mountfield SP41 Petrol Lawnmower is a self-propelled mower designed with a 123cc ST120 Autochoke petrol engine, making it a solid choice for small to medium-sized gardens up to 250 square meters. Its 39cm cutting width is modest, suitable for navigating tighter spaces without being overly cumbersome. The self-propelled nature of the lawnmower reduces the physical effort required, which is particularly beneficial for users who might struggle with pushing heavier machines.

One of the key features is the adjustable cutting height with five positions ranging from 22mm to 80mm, allowing flexibility depending on your lawn's condition and your preferred mowing height. The 40-liter grass collector is reasonably sized for the mower's intended garden size, making it easy to handle and empty without frequent trips to dispose of the clippings.

In terms of construction, the mower is made with a lightweight polypropylene chassis, weighing in at 21kg. This weight, combined with the self-propelled feature, enhances maneuverability, making it user-friendly for those who may find heavier models challenging to operate. However, the smaller fuel tank may require more frequent refills, which is something to consider for larger lawns or prolonged use. The mower's grooved wheels provide good traction, helping to maintain stability across varying terrain. Additionally, the foldable handles aid in compact storage, which is a plus for those with limited space. The unit comes with a 2-year manufacturer's warranty, offering some peace of mind in terms of durability. The Mountfield SP41 strikes a balance of features that makes it a practical and efficient choice for the average homeowner looking for an easy-to-use petrol lawnmower.

Rating
9.9
Chosen by1,499
Cutting Height Adjustment
Self-Propelled vs. Push
Weight and Maneuverability
Cutting Height Adjustment
Cut height adjustments make a significant difference, offering a good range for various lawn conditions.
Self-Propelled vs. Push
Self-propelled mechanism is effective, providing flexibility for different mowing tasks.
Weight and Maneuverability
Great lawn mower that's easy to start and lightweight.
#2

Mountfield HP41 Petrol Lawnmower, Hand-propelled, 39cm cutting width, 123cc ST120 Autochoke petrol engine, Up to 250m², Includes 40L grass collector

Rating
9.8
Engine Power
Grass Collection Options
Weight and Maneuverability
Engine Power
Starts easily and runs well, making the lawn maintenance hassle-free.
Grass Collection Options
Cuts effectively and picks up grass and leaves well, though it doesn't produce a striped effect.
Weight and Maneuverability
The machine is lightweight, which enhances maneuverability and ease of use.

The Mountfield HP41 Petrol Lawnmower is designed for small to medium-sized gardens, offering a 39cm cutting width which is suitable for areas up to 250m². It features a 123cc ST120 Autochoke petrol engine, providing reliable power for effective lawn maintenance. This model is hand-propelled, which requires manual effort to push, but offers a lightweight design at 19 kilograms, making it easy to maneuver around the garden. The polypropylene chassis is sturdy and rust-proof, ensuring durability over time.

One of the notable strengths of this lawnmower is its adjustable cutting height with five positions ranging from 25mm to 70mm, allowing for customization based on lawn conditions. The 40-liter grass collector is a practical feature, easily removable and spacious enough to handle larger amounts of clippings without frequent emptying. However, the fuel tank capacity is relatively small at 0.75 liters, which means it may require more frequent refueling, especially for larger areas.

Although the lawnmower is not self-propelled, its grooved wheels provide good traction, and the lightweight design aids in maneuverability, making it suitable for gardeners looking for a straightforward machine without complex features. Those with larger gardens might find the hand-propelled nature less convenient over time. With a 2-year manufacturer's warranty, it offers additional peace of mind for buyers. This lawnmower is ideal for users who need an uncomplicated, effective machine for their garden maintenance tasks without the need for advanced functionalities.

Rating
9.8
Engine Power
Grass Collection Options
Weight and Maneuverability
Engine Power
Starts easily and runs well, making the lawn maintenance hassle-free.
Grass Collection Options
Cuts effectively and picks up grass and leaves well, though it doesn't produce a striped effect.
Weight and Maneuverability
The machine is lightweight, which enhances maneuverability and ease of use.
#3

Hyundai 20"/51cm 196cc Electric-start Self-propelled Petrol Lawnmower, 6 Cutting Heights, Large 70l Grass Collector, Foldable Handles, 3 Year Warranty

Rating
9.7
Engine Power
Self-Propelled vs. Push
Grass Collection Options
Engine Power
A robust and powerful beast, perfect for medium to large lawns, with a convenient electric start feature.
Self-Propelled vs. Push
The self-propelled feature with four speeds makes it easy to handle different lawn sizes.
Grass Collection Options
The large grass collector is efficient, reducing the frequency of emptying during use.
Weight and Maneuverability
Despite its weight, the mower's design allows for easy maneuverability around obstacles.

The Hyundai 20"/51cm 196cc Electric-start Self-propelled Petrol Lawnmower is a robust option for those with medium to large lawns. One of its key strengths is its powerful 196cc Hyundai 4-stroke petrol engine, which ensures easy starting and efficient fuel usage. The electric start feature, along with a recoil backup, makes it very convenient to start the mower with just a button press. Its self-propelled nature with 4 walking speeds means you won't have to push it, which can make mowing less tiring, especially on larger lawns.

The 20-inch cutting width is ideal for covering more ground quickly, and the 6 adjustable cutting heights allow for a tailored lawn finish. The large 70L grass collector bag means fewer stops to empty it, and there's even a mulching option for those who prefer to return the clippings to the lawn. Foldable handles make it more compact for storage and easier to transport. Practical features like the two cup holders add a touch of convenience for hydration during long mowing sessions.

The mower is backed by a 3-year home-use warranty and a 1-year commercial warranty, offering peace of mind. However, at 43.8 kg, it is on the heavier side, which might make maneuverability a bit challenging for some users, especially in tighter spaces. Its dimensions are fairly standard, but users should ensure they have enough storage space due to its size. This lawnmower is a solid choice for those needing a powerful and feature-rich machine for larger lawns, provided they can manage its weight.

Rating
9.7
Engine Power
Self-Propelled vs. Push
Grass Collection Options
Engine Power
A robust and powerful beast, perfect for medium to large lawns, with a convenient electric start feature.
Self-Propelled vs. Push
The self-propelled feature with four speeds makes it easy to handle different lawn sizes.
Grass Collection Options
The large grass collector is efficient, reducing the frequency of emptying during use.
Weight and Maneuverability
Despite its weight, the mower's design allows for easy maneuverability around obstacles.

Buying Guide for the Best Petrol Lawnmowers

Choosing the right petrol lawnmower involves understanding your lawn's specific needs and matching them with the features of the mower. Consider the size of your lawn, the type of grass, and the terrain. Petrol lawnmowers are powerful and suitable for larger lawns, but they require regular maintenance. Understanding the key specifications will help you make an informed decision that ensures efficiency and ease of use.
Engine PowerEngine power in petrol lawnmowers is measured in cubic centimeters (cc) and indicates the strength of the mower. A more powerful engine can handle tougher grass and larger areas more efficiently. For small to medium lawns, an engine with 125cc to 150cc is usually sufficient. For larger lawns or tougher terrains, consider engines with 160cc or more. Choose based on the size of your lawn and the type of grass you have; more power is better for thick or wet grass.
Cutting WidthThe cutting width refers to the width of grass the mower can cut in a single pass. A wider cutting width means fewer passes to mow the lawn, which is ideal for larger areas. Cutting widths typically range from 16 inches to 22 inches. For small lawns, a narrower width is manageable and easier to maneuver. For larger lawns, a wider cutting width will save time and effort.
Cutting Height AdjustmentCutting height adjustment allows you to change the height at which the grass is cut. This is important for maintaining the health of your lawn, as different grass types and seasons require different cutting heights. Most mowers offer a range of settings, typically from 1 inch to 4 inches. Choose a mower with easy-to-adjust settings that suit the type of grass you have and the desired lawn appearance.
Self-Propelled vs. PushSelf-propelled mowers have a drive system that moves the mower forward, reducing the effort needed to mow. This is particularly useful for larger lawns or hilly terrains. Push mowers require manual effort to move and are suitable for smaller, flat lawns. Consider your physical ability and the size and slope of your lawn when deciding between these options.
Grass Collection OptionsGrass collection options include bagging, mulching, and side discharge. Bagging collects clippings for disposal, keeping the lawn tidy. Mulching cuts clippings into fine pieces that decompose and fertilize the lawn. Side discharge expels clippings to the side, which can be left to decompose or raked up. Choose based on your preference for lawn maintenance and the condition of your lawn.
Fuel Tank CapacityFuel tank capacity determines how long the mower can run before needing a refill. Larger tanks mean longer mowing sessions without interruption, which is beneficial for larger lawns. Capacities typically range from 0.5 liters to 1.5 liters. For small lawns, a smaller tank is sufficient, while larger lawns will benefit from a larger capacity to minimize refueling stops.
Weight and ManeuverabilityThe weight of the lawnmower affects how easy it is to maneuver, especially around obstacles and on slopes. Lighter mowers are easier to handle but may be less stable on uneven terrain. Heavier mowers provide more stability but require more effort to push or turn. Consider your physical strength and the layout of your lawn when choosing the weight of the mower.