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Best grass trimmer brands

By Adele Dyer

Discover the best and worst grass trimmer brands, according to our independent test lab reviews and surveys of thousands of owners. 

Put us to the test

Our Test Labs compare features and prices on a range of products. Try Which? to unlock our reviews. You'll instantly be able to compare our test scores, so you can make sure you don't get stuck with a Don't Buy.

Which? tests grass trimmers every year, putting them through a series of rigorous tests to see how they will perform in your garden. We have expert testers who are knowledgeable about garden tools, but also know how everyday gardeners will use grass trimmers and what they will find great or annoying.

We have reviewed grass trimmers from all the top brands, including Bosch, Black & Decker, Flymo, Stihl and Ryobi. We've distilled our knowledge, including test results and our unique insights into reliability and owner's views so you can find the right brand for you. 

Take a look at our full grass trimmer reviews to find one with the best fit for your needs. 

Best and worst grass trimmer brands

In the table below we've collated all of our grass trimmer tests since 2011, plus our unique reliability ratings and customer scores, so you can see at a glance how the key brands of grass trimmer stack up against one another. Which? members should log in now to unlock the scores in the table. If you're not a Which? member, try full access for one month with a £1 trial

Best grass trimmers brands
Best grass trimmer brands
Brand Average test score Reliability rating Customer score Should I buy it?
70% N/A 84% This brand makes a range of petrol grass trimmers. We've only tested one, but were impressed by how well it trimmed long grass and weeds, and how well it fed out more line. Which? members tell us they're very pleased with this brand's quality and fitness for purpose.
75% 83% We've tested five petrol grass trimmers from this brand and four of these were Best Buys, with the fifth being only a point away. We've also tested two electric and one cordless grass trimmer, two of which are Best Buys. This brand's grass trimmers are on the expensive side, but they were praised by Which? members for their quality.
67% 67% One cordless grass trimmer from this brand holds a Best Buy, another struggled with longer grass and weeds. Which? members thought they were easy to use, but gave only satisfactory scores for their build quality.
68% 65% We've only reviewed one cordless grass trimmer from this brand, but we were impressed, giving it a Best Buy. Which? members thought the ease of use and quality were satisfactory.
68% 59% This brand's cordless grass trimmers gave the highest customer score for this type of grass trimmer. The brand has a line of cordless and electric grass trimmers ranging from around £20 up to £75. In our tests some have given decent, but not outstanding scores. Overall, Which? members didn't score the brand's grass trimmers highly for quality.
62% 52% One of this brand's cordless grass trimmers is a Best Buy, although this one does have a high price tag. Two other cordless models received much lower scores. Which? members think they offer poor value for money.
58% 51% This brand's electric models left Which? members satisfied, but not bowled over. It's one of the few brands to produce electric, cordless and petrol grass trimmers. One of its electric models is a Best Buy, and one cordless and one petrol model almost make the grade.
72% 50% This brand's electric grass trimmers are well known. The brand has a range of cordless and corded grass trimmers ranging from around £20 up to £75. In our tests some have given decent, but not outstanding scores. Overall, Which? members didn't score its electric grass trimmers highly for quality.
62% 49% This brand sells a wide range of electric grass trimmers, ranging from basic models for around £20 through to around £70. In our tests these have had mixed success with some scoring moderately well, while others are at the bottom of our results table. Which? members found they had poor build quality.
65% 48% We've reviewed a great many of this brand's electric grass trimmers, more than for any other company. Again, these range from bargain grass trimmers with basic functions for around £20 to those that are similar to petrol grass trimmers. One is a Best Buy, while others have poor scores. They scored badly for value for money and ease of use amongst Which? members.
72% 42% We found two grass trimmers from this brand to be good electric grass trimmers, but Which? members were disappointed with build quality, ease of use, and value for money.
72% 41% This brand's petrol grass trimmers did not score highly. It's one of the few to produce electric, cordless and petrol grass trimmers. One of its electric models is a Best Buy, and one cordless and one petrol model almost make the grade. Which? members, however, thought the petrol models did not give value for money.

Table notes
Average score based on the results of all models tested between January 2012 and February 2015.
Reliability rating: based on a survey of 6,428 Which? members in April and May 2015.
Customer score: based on a survey of 6,428 Which? members in April and May 2015.

Key

Member Content

Choosing the best brand of grass trimmer

When we surveyed Which? members about their grass trimmer brands, the response was far from positive. We asked Which? members to tell us how they would rate their grass trimmers on build quality, ease of maintenance, storage and use, value for money and whether they were fit for purpose. 

All types of grass trimmers (petrol, electric and cordless) scored poorly for value for money, with no brand scoring more than 3/5. However, some brand's petrol grass trimmers scored full marks as being fit for purpose. Electric grass trimmer brands all scored poorly over all measures. Some of this dissatisfaction might be down to basic problems with these grass trimmers. 

To calculate a rating for reliability we also asked what grass trimmer faults members experienced and when these first occurred. Many members complained of line-feed problems with their grass trimmers, and this brought much lower reliability figures than we would expect for any garden tool. The problems included the line breaking frequently, an awkward system for making more line feed out of the head, and the line becoming caught up inside the head. If your grass trimmer suffers from these, read our advice on avoiding line feed problems

The average test score is made up of all the models we have tested since 2012, including those that have now been discontinued. This gives a good idea of the marks that each brand has achieved. Some brands, such as Stihl, have consistently achieved good results, while others, such as Black & Decker, have mixed results. 

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