Summer sale now on

Petrol Lawnmowers

Our range of petrol lawnmowers is built for power and reliability, making them the natural choice for larger lawns, uneven ground, or rougher terrain where electric and battery mowers can struggle. Choose from push, self-propelled, and rear-roller petrol lawn mowers from trusted brands including Cobra, Masport, Webb, Cub Cadet, and Harry, with engines from Briggs & Stratton, Honda, and Loncin. Whether you’re after a compact push mower for a modest garden or a heavy-duty self-propelled roller mower for a striped, professional finish, we stock petrol lawnmowers to suit every lawn size and budget. All orders benefit from free UK delivery, our 90-day money-back guarantee, price match promise, and flexible finance options — so you can buy your new petrol lawn mower with confidence.

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Save 9%

Masport 150 ST L Combination Push Petrol Lawn Mower

Original price was: £269.00.Current price is: £245.00.

Masport 150ST Combination Push petrol lawn mower

£279.00

Save 17%

Masport 150ST SP Combi Petrol Rotary Lawn mower

Original price was: £430.99.Current price is: £359.00.

Save 17%

Masport 150ST SP L Combo Self-propelled Petrol Lawnmower

Original price was: £390.99.Current price is: £325.00.

Save 10%

Masport 200 ST L Push Petrol Lawn Mower

Original price was: £309.00.Current price is: £279.00.

Save 9%

Masport 200 ST Push Petrol Rotary Lawn mower

Original price was: £369.00.Current price is: £335.00.

Save 10%

Masport 250ST Combo SP Petrol Lawn mower

Original price was: £459.00.Current price is: £415.00.

Save 10%

Masport 250ST SP L Combo Self-propelled Petrol Lawnmower

Original price was: £409.00.Current price is: £369.00.

Save 17%

Masport 300AL L Push Petrol Lawnmower

Original price was: £466.99.Current price is: £389.00.

Save 10%

Masport 350ST SP Combo HLS 18 inch Petrol Lawn mower

Original price was: £519.00.Current price is: £469.00.

Save 10%

Masport 450 ST SP Self Propelled Rotary Mower

Original price was: £639.00.Current price is: £575.00.

Save 17%

Masport 500AL 18 inch Push Petrol Lawn mower

Original price was: £649.99.Current price is: £539.00.

Save 10%

Masport 575 AL SP Instart Self Propelled Rotary Lawn Mower

Original price was: £899.00.Current price is: £809.00.

Save 10%

Masport 575 AL SP Self Propelled Rotary Lawn Mower

Original price was: £759.00.Current price is: £685.00.

Masport 800 AL Combo Self Propelled Petrol Lawn mower

£739.00

Save 10%

Masport 800 ST SP L Self Propelled Mower

Original price was: £619.00.Current price is: £559.00.

Masport Rotarola 18 inch Push Petrol Rear Roller Lawn mower

£605.00

Save 20%

Masport Rotarola 18 inch Self Propelled Rear Roller Lawn mower

Original price was: £999.00.Current price is: £799.00.

Save 23%

Masport Rotarola RRSP 18 L Self-Propelled Rear Roller Lawnmower

Original price was: £899.00.Current price is: £695.00.

Save 20%

Masport Rotarola RRSP-22 Self Propelled Rear Roller Lawn mower

Original price was: £1,199.00.Current price is: £955.00.

Save 22%

Masport Rotarola RRSP18 Rear Roller Lawn mower (Honda engine)

Original price was: £1,099.00.Current price is: £855.00.

Save 10%

Masport Rotarola RRSP22 Rear Roller Lawn mower (Honda engine)

Original price was: £1,119.00.Current price is: £1,009.00.

Save 10%

Masport Widecut 800 AL Push Combo Petrol Lawnmower

Original price was: £699.00.Current price is: £629.00.

Save 10%

Masport Widecut 800AL SP Pro Self-Propelled Petrol Lawnmower

Original price was: £909.00.Current price is: £819.00.

Frequently Asked Questions

How do I choose the right petrol lawnmower for my garden?

It mainly comes down to lawn size and terrain. Push mowers with a 40–46cm cutting width suit smaller, flatter gardens, while self-propelled models are better for larger or sloped lawns as the engine drives the wheels for you. For a striped, formal finish, choose a rear-roller petrol lawnmower.

What's the difference between a push and self-propelled petrol lawnmower?

A push mower relies on you to move it forward, making it lighter and cheaper but harder work on bigger or uneven lawns. A self-propelled mower has a drive system that pulls itself along, reducing effort — ideal for larger gardens, slopes, or if you're mowing regularly.

Are petrol lawnmowers better than electric or battery mowers?

Petrol lawnmowers generally offer more cutting power and aren't limited by a cable or battery run-time, making them better suited to larger lawns, thicker or longer grass, and rougher ground. Electric and battery mowers tend to suit smaller, more manageable gardens.

How often does a petrol lawnmower need servicing?

As a minimum, check and top up the oil before each mowing season, clean or replace the air filter annually, and replace the spark plug and blade as needed. An annual service — cleaning the deck, sharpening the blade, and checking the engine — keeps it running efficiently and extends its lifespan.

What size petrol lawnmower do I need?

As a rough guide: up to around 250m² suits a 35–40cm cutting width, 250–500m² suits 41–46cm, and anything larger than 500m² benefits from a 48cm+ self-propelled or roller mower to cut mowing time down but do check the specification on each mower where we have added a suggested lawn size.

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Our Promise

90 day guarantee

Changed your mind? Just let us know within 90 days—as long as the item’s unused, in original packaging, and you have your order or invoice number, we’ll sort it. Email us to arrange the return. Once we’ve received and checked the item, we’ll refund you to your original payment method.

Price match promise

At Mowers‑Online, we want you to get the best deal. If you spot the exact same product for less elsewhere, just email us the details—and we’ll match the price. It’s simple, fair, and designed to save you money.

Finance available

Changed your mind? Just let us know within 90 days—as long as the item’s unused, in original packaging, and you have your order or invoice number, we’ll sort it. Email us to arrange the return. Once we’ve received and checked the item, we’ll refund you to your original payment method.
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