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Join nowWhether you're completing final winter pruning or slicing wood for the log burner, you can't get the job done effectively without a reliable chainsaw.
You might be tempted to pick up the cheapest model you can, but without consulting our independent reviews, you risk buying a chainsaw that's weak and lacking on features.
Our guide also runs through the various types of chainsaws on offer based on your budget, as well as vital safety information and key features to look out for.
Below, we've picked the chainsaws that came top in our test, whether you want to cut through thin logs or tough railway sleepers.
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Expert advice through the seasons so you know what to do and when. £4.99 a month, cancel anytime.
Join nowHere's our pick of the top chainsaws, including cordless, electric corded and the cheapest chainsaw to ace our tests.
Only logged-in Which? members can view our recommendations in the table below. If you're not yet a Which? member, you can get instant access by joining Which?.
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Table updated: March 2024.
Not found the right chainsaw for you? Browse all our chainsaw reviews.
Watch our video to see the key things to look out for when you're on the hunt for a new chainsaw.
Cordless chainsaws are ideal if you want to work among branches, as they don't have a trailing cable and are generally quite light and compact. They're less tiring to use and easier to manoeuvre than other types. It’s still worth testing one out before you buy to check it has enough battery power and will run for long enough for your jobs.
Cordless chainsaws are battery-powered. The battery powers the motor and drives a metal chain, with lots of cutting ‘teeth’, at high speed around an oblong-shaped guide bar. As the spinning chain makes contact with a log or tree trunk, its teeth are dragged along the surface, cutting the wood. The circular motion of the chain keeps the bottom teeth in contact with the wood, so the saw keeps slicing until it has cut all the way through or the power is stopped.
Chainsaw batteries are powerful and can take a while to charge; between 30 minutes to over two hours is normal. They are quite expensive and often cost almost as much as the body of the machine itself. However a lot of manufacturers including Stihl, Ryobi, Bosch and Makita have batteries that can be used with other garden tools from that brand so, if you keep to one brand, you'll only have to buy one battery for most of your garden tools. If you use your cordless chainsaw a lot, it might be worth buying a second battery so that you don't have to stop working while it charges.
The chain needs lubricating with specialist oil to ensure it runs smoothly and doesn’t snag. Look for a chainsaw with an integrated oil chamber that supplies this oil automatically, as this will save you time and hassle; most models come with these as standard, but it’s worth checking before you buy.
Manufacturers often have one or two standard batteries and chargers that can be used with a wide range of tools. Before you buy check to see if any of your existing tools has a battery and charger that can be used with the tool you are planning to purchase as this could save you a considerable amount of money.
As some people may already own a compatible battery and charger, these are sometimes not included in the price quoted for your tool, so check the small print before you buy.
Alternatively, you may see it as a good chance to buy a second battery for your tools. Batteries are sometimes cheaper when bought with a tool, and it’s often useful to have a second one charged and ready to go when you’re carrying out jobs that will take some time to finish.
Most corded electric chainsaws come with an 18V or 36V battery. The more powerful batteries will give you more cutting time but will cost more. Stihl, Bosch and Black & Decker make cordless machines.
See our cordless chainsaw reviews.
If you have a lot of logs to cut or heavy pruning to tackle in the garden, a petrol chainsaw could be a good choice; it will cut through large logs faster than any other machine and you can use it anywhere without the hassle of a trailing power cable.
It is generally recommended that unleaded fuel used for chainsaws does not have a higher ethanol content than 10 % - this is because ethanol attracts water which can cause corrosion if fuel is left in the chainsaw for long periods.
E10 fuel is fine to use, but super unleaded with an ethanol content of 5 % is better and what we would recommend.
It's good practice to empty the fuel tank as much as possible – and completely if not in use over winter. Petrol is better stored in a bespoke container rather than in the machine.
Due to recent market shifts, we're seeing fewer launches of petrol-powered gardening tools, as manufacturers appear to be focusing their attention on cordless tools. These offer a better alternative for the environment and our health, as they’re quieter and produce zero emissions, while still being flexible and powerful enough to rival petrol tools.
A petrol engine drives a metal chain, with lots of cutting ‘teeth’, at high speed around an oblong-shaped guide bar. As the spinning chain makes contact with a log or tree trunk, its teeth are dragged along the surface, cutting the wood. The circular motion of the chain keeps the teeth in contact with the wood, so the saw keeps cutting until it has sliced all the way through or the power is stopped.
Most petrol chainsaws have two-stroke engines, which are similar to those used in mopeds or outboard boat engines. They normally sound similar, too – just think of the noise a moped makes to get an idea of how loud these machines are.
It’s worth bearing in mind that a petrol chainsaw’s engine will require regular servicing to keep it in good working order.
Petrol chainsaws need a certain type of fuel, which is a specific mix of petrol and engine oil. Most petrol chainsaws run on a 50:1 petrol-to-oil ratio, but check the user manual for the exact ratio your chainsaw needs.
As well as the right oil-fuel mix, petrol chainsaws need lubricating oil to ensure the chain runs smoothly and doesn’t snag. Look for a chainsaw with an integrated oil chamber that supplies this oil automatically, as this will save you time and hassle; most models come with these as standard, but it’s worth checking before you buy.
If you don’t use a petrol chainsaw regularly you must drain it of fuel and oil between uses
Petrol chainsaws come in different sizes and power capacities depending on the sort of work they’re designed to do, from pruning the branches of a shrub to felling large trunks.
Generally, there are three categories: domestic use, heavy use and professional use. Most of the petrol chainsaws you’ll find in DIY stores and garden centres will be designed for domestic use and have a guide bar of 40cm or less. These are the best choice for cutting jobs around the garden.
Corded electric chainsaws are the cheapest models you can buy. They are ideal if you’re sawing logs or pruning close to the house and can plug the cable straight into a mains socket. Often the power cable is quite short, so if you're chopping logs at the end of your garden you may need to use an extension cable and residual current device (RCD), which cuts off the power if the cable is cut.
Corded electric chainsaws are mains-powered and come with a power cable attached.
An electric-powered motor drives a metal chain, with lots of cutting ‘teeth’, at high speed around an oblong-shaped guide bar. As the spinning chain makes contact with a log or tree trunk, its teeth are dragged along the surface, cutting the wood. The circular motion of the chain keeps the bottom teeth in contact with the wood, so the saw keeps slicing until it has cut all the way through or the power is stopped.
The motor doesn't need maintenance in the same way as a petrol engine, but this does mean that if it fails, there is less chance of a simple repair.
The chainsaw chain needs lubricating with specialist oil to ensure it runs smoothly and doesn’t snag. Look for a chainsaw with an integrated oil chamber that supplies this oil automatically, as this will save you time and hassle; most models have these as standard, but it’s worth checking before you buy.
Any corded electric chainsaw can be a useful tool if you’ve got a lot of wood to cut, but they can also be dangerous and cause serious injury, so always wear full safety gear when using them.
Most corded electric chainsaws are either 1,800W or 2,000W and have a guide bar of 35cm or 40cm in length. Both are effective for cutting tasks around the garden: a 40cm guide bar can cut thicker logs than a 35cm one, and a 2,000W model will cut more quickly than 1,800W.
See our corded electric chainsaw reviews.
This all depends on what type of chainsaw you want to buy; how much you can afford and how robust you need it to be. If you're using it only occasionally then a cheap, corded electric machine will be fine. But for more substantial jobs or more frequent use, you'll need to get a petrol chainsaw. Remember that you will need to buy appropriate protective clothing, too.
Some of the cheapest chainsaws we've seen come from Lidl or Bosch, at around £85. At the other end of the scale are chainsaws costing closer to £450 from brands such as Stihl.
Our expert tests show that you’re probably looking at around £200-£300 if you want to get your hands on a Best Buy model and they tend to be petrol or cordless.
Find out which chainsaw brand to buy.
See all our garden and outdoors advice.
Before you start sawing, you'll need to buy a full set of protective clothing. We recommend a safety helmet, boots and ear defenders as well as chainsaw gloves and chainsaw trousers.
Find out more by reading our guide to using a chainsaw safely.
You can't know what a chainsaw is really like to use when you try it out in a shop. That's why we put every chainsaw we test through 21 different ease-of-use tests, and only the most comfortable to use get our recommendation.
We also make 40 cuts with each chainsaw on different types and thickness of logs. This shows us exactly where its strengths and weakness lie and helps you to choose a chainsaw that meets your needs.
You can trust that our reviews are independent and impartial. We don't accept any freebies from manufacturers and we buy every sample we test.
To compare everything we've put through our test lab, see all our chainsaw reviews.