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Home & garden.

24 June 2021

Top five best grass trimmers and lawn edgers

We round up our favourite top-scoring grass trimmers and lawn edgers to help you find the best model for your gardening jobs.

Jade Harding

In this article

Best grass trimmers
Grass trimmers to avoid
Useful features to look for when buying a grass trimmer
Why Which? grass trimmer reviews are better

The best grass trimmers can tidy the lawn edges easily and trim hard-to-reach grass without much hassle.

The worst we’ve tested leave straggly grass and stubborn weeds in the garden, suffer far too many line-feed jams, or have a battery that dies within minutes of starting the job.

We’ve pulled out our top five petrol, cordless and electric grass trimmers and lawn edgers from our tests in the table below. We also reveal the models that you’re better off avoiding.

Best grass trimmers

Only logged-in Which? members can view our recommendations in the table below. If you're not yet a member, you can get instant access by joining Which?.

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84%
£259.00
This cordless grass trimmer is excellent at cutting down long grass and weeds, but also feels well balanced and easy to use. It has the power of a heavy-duty petrol grass trimmer, but with the advantage that it’s less noisy, vibrates far less and is much easier to start.
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83%
£84.66
This heavy-duty electric grass trimmer did a good job of cutting through weeds and tough grass. It's comfortable to use and the line feed works well. Despite being a corded machine, it's very powerful, so is no easier to control than a petrol model. With a little practice you may get a neat edge on your lawn, but we wouldn't recommend it for that task. If you don't mind using a corded machine for cutting long grass, it's a much cheaper alternative to a petrol grass trimmer.
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83%
£323.00
This is a great petrol grass trimmer, and the brushcutter head is extremely effective. It's comfortable to use and easily deals with tough job, such as heavy weeds and long grass. The bump feed on the grass trimmer head works well, so you won't lose your line. It's pricey, but should last you a long time.
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80%
£290.00
It's rare to find a trimmer powerful enough to cut through thick weeds whilst also edging your lawn beautifully, but this model manages it. It's a great all rounder, with an effective bump feed line, comfortable handles and long battery life to help you get round your garden in one go.
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70%
£135.36
If you're after an easy to use cordless lawn edger, this model is the best choice. It makes neat and tidy vertical and horizontal cuts, is easy to set up and use and the line doesn't break too often either. You'll also appreciate the adjustable handle and rotating head to help you find a comfortable cutting position.
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Not found the right product for you? Browse all our grass trimmer reviews.

Grass trimmers to avoid

The worst grass trimmers can leave you with messy lawn edges and an aching back. Here are two grass trimmer that we wouldn't recommend buying:

Only logged-in Which? members can view our recommendations in the table below. If you're not yet a member, you can get instant access by joining Which?.

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38%
£30.00
This corded electric grass trimmer is very small, so you seem to be constantly bent over. It doesn't do a brilliant job and is only suitable for very small lawns.
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Useful features to look for when buying a grass trimmer

Here are three of the most useful features to look for when buying a new grass trimmer:

Rotating head - this lets you flip the cutting mechanism so you can cut vertically.
A wheel on the grass-trimmer head - this supports the weight of the grass trimmer and maintains a constant cutting height.
Telescopic shaft - a shaft handle that you can adjust to suit your height.

For more advice on choosing the best grass trimmer for you, head to our grass trimmers buying guide.

Why Which? grass trimmer reviews are better

Which? is independent and doesn't accept advertising or freebies, so you can trust our reviews to give you the full, honest and impartial truth about a product.

As part of our grass-trimmer tests, our experts cut short grass growing over the edge of paths, along a flower border, and against a fence. They also cut grass that has been allowed to grow to a height of 15cm, as well as tough weeds and vegetation. While cutting, our experts look for: