Destructive Behaviour in Dogs: Why It Happens and How to Stop It

Coming home to a chewed-up cushion or a skirting board that's clearly lost a fight with your dog's teeth is never fun, and if it keeps happening, you're nowhere near the only owner dealing with it. Destructive behaviour is one of the most common things dog owners complain about, and it's almost never down to your dog being deliberately naughty.

And yelling at them for it doesn't work, no matter what's behind it. It usually just makes them more anxious or stressed which is likely to make the chewing worse and not better. Instead, it’s best to redirect them to something they're allowed to destroy and reward them when they take it as this teaches them a lot faster than telling them off ever will.

Underneath it there's almost always a real reason: separation anxiety, a fear of loud noises like fireworks or thunder, teething in a young puppy, or sometimes just not enough physical or mental stimulation to get through the day. Thankfully, once you know which one you're dealing with, it's almost always fixable.

And that's what the rest of this guide is for, working out why your dog's doing it and how to tell normal chewing from something that needs addressing, then exactly what to do about it, week by week.

Destructive behaviour is any damage that goes past normal play or the odd bit of wear and tear. We’re talking skirting boards chewed through, cushions torn apart, doors scratched down to bare wood, the bin raided or the post ripped up before you've even had a chance to read it.

Every dog chews and scratches sometimes, since that's just how they relieve stress and keep their jaws strong. But it becomes a problem once it starts costing you furniture and cables on a regular basis. Your pup deserves to chew and scratch, but it’s our job to help them learn exactly where they’re allowed to do it.

Chewing tends to be the one owners notice first, but it's far from the only kind of destructive behaviour out there. Dogs can just as easily dig up the garden, shred curtains or rugs, knock things over again and again, or bark far more than usual. Whatever shape it takes, there's almost always a real reason behind it.

Chewing is a natural behaviour for dogs of all ages. Some chewing and digging are completely normal, especially in puppies, and only become a problem when they turn intense, constant, unsafe or impossible to redirect.

• Normal chewing. Most puppies under seven months chew hands, toys, cushions or whatever's lying around while they're teething, and it's nothing to worry about. Adult dogs will often love working over a stick on a walk too or chewing through their own toys, and that’s them just being perfectly healthy and normal dogs.
• Understandable, but not ideal. A bored young Collie digging up the garden every day is bored, not badly behaved and the same goes for a ten-month-old Labrador chewing through your shoes when they're not getting enough exercise. It's still destructive but sort out the boredom or the exercise and the destructive behaviour should stop with it.
• Something that needs a closer look. Licking or chewing the same spot on a wall for hours isn't just a phase, and neither is persistently eating things that aren't food, a condition called pica. Both are compulsive, and it usually comes from being weaned too early, before eight weeks old, or from anxiety that's gone unaddressed for a while.

If your dog's chewing suddenly changes out of nowhere, especially after years of never showing any interest in furniture, get them checked by the vet. It could be a sign of pain, dental disease, cognitive decline or another health issue underneath.

Noticing patterns, like what time of day it happens or who's home when your pup decides to destroy your favourite pair of slippers, goes a long way toward figuring out what's driving it. It's often the easiest way to spot something deeper going on, if you know what to look for.

These are the signs to watch for.

• Skirting boards or door frames chewed near exits
• Post or parcels torn open before you get to them
• Sofa cushions with holes, or remote controls chewed to pieces
• Doors scratched up, or flowerbeds dug up
• Bins knocked over and rummaged through

Other signs that often show up alongside the damage include pacing, whining at windows, panting when they're left alone, extra barking, shadowing one person round the house, or an intense, frantic greeting when you get back. These usually point to anxiety rather than boredom.

It can really help to keep a simple "damage diary" for one to two weeks. Even just a scrap piece of paper on the fridge will do, so you can track the date, how long you were out, what got destroyed, and any triggers nearby like visitors, fireworks, thunderstorms or building work. You’ll find that doing that for a couple of weeks gives you some sort of pattern and answer.

Destructive behaviour is never really about the furniture, even if it might feel like a personal attack against your brand new sofa. It's almost always your dog telling you something's missing, and once you know what that something is, sorting it out gets a lot easier. Here are the most common causes for destructive behaviour in dogs:

• Boredom and lack of mental stimulation: Bored dogs chew, that's just what happens when there's nothing else to do. When they're left with no company and nothing to keep their brain busy, chewing becomes the easiest way to pass the time and burn off the frustration, the same way we end up picking at our nails or ripping the plastic wrapper off a water bottle when we're bored out of our minds. And it gets worse with a routine that never changes, so mixing things up matters just as much as how much enrichment you give them.
  
  
• Inconsistent feeding: Going hungry, or just never knowing when the next meal's coming, can leave a dog anxious enough to start chewing while they hunt around for food. A regular feeding schedule is one of the best ways to resolve this, since dogs settle a lot faster once mealtimes are predictable.
  
  
• Separation anxiety: This is one of the most common causes of destructive behaviour in dogs with research putting the figure at somewhere between 17 and 20% of dogs going through separation distress at some point. It’s something that usually shows up as chewing around doors and window ledges within minutes of you leaving. It isn't just about being left alone though with some dogs finding other stressful situations setting off the same kind of chewing.
  
  
• Developmental stages: Puppies between three and six months old are simply teething, there's not much more to it than that. But adolescence can tell a different story, with pups somewhere between six and eighteen months often looking to test boundaries while they're bursting with energy and still working on impulse control.
  
  
• Fear and phobias: Loud noises are enough to set a lot of dogs off, and it doesn't take much, things like summer thunderstorms, autumn fireworks, unfamiliar visitors or even a loud lorry going past can all trigger panic chewing or frantic digging at the door.
  
  
• Medical and physical factors: Chewing and general restlessness can just as easily be physical, driven by things like dental pain, digestive discomfort, itchy skin or cognitive decline in older dogs. And if your dog's destructive streak has come on suddenly, with nothing else in their routine changing, book them in with the vet to rule anything medical out.
  
  
• Breed tendencies: Terriers dig because that's what they were bred for, and retrievers carry or chew things for the same reason, it's just in their blood. And high-energy breeds like Huskies or Vizslas act out fastest of all when they're not getting anywhere near enough exercise, chewing included. That said, breed only explains a small slice of it with one study suggesting about 9% of overall behavioural variation comes down to breed with the rest being down to environment, socialisation, training and daily routine.

Every dog chews, but why they're doing it and what helps stop it look pretty different between a teething puppy and a fully grown dog.

Teething is the main driver for puppies, and it's pretty relentless while it lasts. From around 12 weeks old, puppies start losing their 28 baby teeth and growing all 42 adult ones, and sore gums make chewing feel like the only thing that helps. Most puppies are through it by six months old, though larger breeds can take a bit longer to get their full set in.

Chewing also helps puppies make sense of the world around them, in the same way a baby explores everything by putting it in their mouth. A puppy doesn't have hands, so their mouth becomes the main tool for working out what wood, fabric, plastic or your favourite trainers feel like, which is why redirection matters from day one.

Grown dogs are a different story. Plenty of things can be behind it like stress, boredom, not enough exercise or a habit that got accidentally rewarded back when they were a pup. And none of it fixes itself with age. What does help is giving them clear guidance and the right chew toys, alongside a routine that gives the habit somewhere better to go.

If your adult dog's chewing has turned frequent and destructive enough to cause real damage, or even put them at risk, bring in a vet or a behaviourist sooner rather than later.

Managing your dog's environment can help prevent destructive behaviour before it starts, and it's by far the quickest way to protect your belongings while the training side of things catches up.

• Create a safe space. A puppy pen or a gated-off room works well for most dogs, and a crate suits others just as much. Whichever you choose, keep it stocked with bedding and water, plus a few chew toys or natural dog chews to keep them busy, so your pup's got somewhere secure to be when you can't watch them.
• Remove temptation. Shoes are safest in a cupboard, the kids' soft toys can go in a box, and laundry does well in a basket with a lid. You’ll also want to tuck away cables while bins are best either lidded or kept out of reach in a cupboard.
• Use baby gates. Block off any rooms that are asking for trouble, for example a living room filled with expensive furniture. That way you can protect anything from any anxious teeth while you work out the problem together.
• Taste deterrent sprays. You can also use a safe, bitter-tasting spray on furniture edges, but only ones that are specifically designed for dogs. This also isn’t a replacement for enrichment either. You still need to make sure your pup has plenty of other things to keep them busy and entertained too.

Dogs chew because they're built to, so give them plenty of things they're allowed to get their teeth into instead of trying to stop it outright. Keep a few different chews on rotation too, so boredom doesn't bring the chewing back.

Go for something robust with a strong adult chewer, and something softer, like a puppy dog chew toy, for small breeds or babies with new needle teeth. And always match the size to your dog's mouth, since anything too small becomes a choking risk fast.

Rotating what's on offer helps too, since swapping the sets every few days keeps something feeling new for them. And keep an eye on them at first with anything new, just to make sure they're chewing it safely and not swallowing big chunks.

Long-lasting chews do double duty, since they keep a dog calm and cut down on the unwanted kind of chewing at the same time. Stuffing and freezing an enrichment toy with wet food or treats is an easy way to turn that into a longer, self-soothing session. Chewing keeps a dog's jaws strong and their teeth clean too, so as long as it's aimed at the right things, it's doing them good.

A lot of destructive dogs just have more energy and curiosity than their day-to-day routine gives them room to burn off, and the fix is almost always a mix of physical exercise and something for their brain to do.

Physical exercise: Daily exercise cuts down on boredom-driven chewing more than almost anything else. Aim for one or two decent walks a day, suited to your dog's age and breed, plus a bit of playtime, fetch, tug, scent games or a quick game of hide and seek in the garden all count. If your dog's got a runner in them, agility or canicross are brilliant outlets for all that extra energy.

Mental stimulation: A tired brain works just as well as tired legs so try adding in some short training sessions of five to ten minutes, food-dispensing toys, puzzle toys, or a spot of scent work (hiding treats around the house for your dog to sniff out). All of this helps wear a dog out mentally and can do just as much to stop boredom chewing as a long walk does.

We touched on separation anxiety earlier as one of the big causes behind destructive chewing, and it deserves a closer look, especially since it tends to show up around doors and exits, or basically wherever your dog last saw you leave.

Here's what to look out for:

• Destruction starting within the first 10 to 20 minutes of you leaving
• Intense vocalising and drooling
• A lot of pacing while they're alone
• Ignoring even their favourite chew toy until you're back
• Barking that's bad enough for the neighbours to mention it

If your dog's showing any or several of these, they're not doing it to annoy you, it's just how the panic and nerves show up. And while telling them off feels like the natural reaction when you walk into a mess, it doesn't help, since your arrival just gets tied to something bad in their head rather than the chewing that happened hours before. And more often than not, the shouting itself will only make the anxiety worse.

For milder cases, gradual alone-time training is the approach to use, starting with just a few seconds apart and building up slowly from there. And pairing every departure with a long-lasting treat or a stuffed enrichment toy helps too, along with skipping the big emotional goodbyes and hellos.

For more severe cases (dogs destroying doors, injuring themselves trying to escape, howling for hours on end, or showing other signs of real distress), bring in a qualified behaviourist alongside your vet. And medication alongside behaviour work can also help some dogs, just ask your vet about this if you think they could be beneficial.

We've covered why your dog's chewing things they shouldn't so the next step is teaching them what they're allowed to chew instead. So here are the techniques that make that stick.

• The swap technique: When your dog grabs something they shouldn't like a shoe or the TV remote, stay calm and trade it for a treat or their favourite chew toy, then praise them the second they take it. Do this every time, and eventually it’ll become a pattern they learn to expect.
  
  
• Teach a few useful cues: Training them using specific words like "leave it," "drop," "settle" and "off" gives you cues you can rely on once they've stuck. And keep sessions short (three to five minutes, a few times a day), using food rewards since most dogs pick things up fast once the reward's worth their while and the session feels like a game.
  
  
• Consistency matters: Everyone in the house needs to handle it the same way, since a dog can't learn the rules if one person lets them chew an old slipper and someone else tells them off for doing it.
  
  
• Why scolding after the fact doesn't work: We've touched on this already, since shouting at a destroyed cushion doesn't teach a dog anything about the chewing that happened hours before. They might even throw you a guilty look when you walk in, but that's appeasement, not understanding. They’re just reading your body language and trying to calm you down rather than owning up to anything. And punishment doesn't just fail to teach them, it chips away at trust and can make the anxiety-driven chewing worse.

Most chewing problems get better with management and training, but a few need more than that. So here's when it's time to loop in your vet or a behaviourist:

• Destructive chewing that starts suddenly in an adult dog with no history of it
• Chewing focused on one spot on their body, which can point to self-mutilation
• Regularly swallowing things that aren't food, a condition called pica, and worth a vet's attention
• Damage severe enough to risk real injury, like chewing through doors, crate bars, windows or garden fencing
• Things getting worse even with consistent management in place

Your vet will likely start with a physical exam, a dental check, blood tests or occasionally an X-ray, and they'll often ask you to film your dog while you're out, since that footage usually shows what's setting them off. From there, a qualified behaviourist can build a plan tailored to your dog, which matters most for the trickier cases like severe separation anxiety or fear-driven destruction.

Getting help early, before the habit's had time to become a fixed one, almost always makes it easier to turn around. So don’t wait until it feels like too much to handle and get a start as soon as you notice any destructive behaviours appear.

Here's roughly how it looks when you put everything in this guide together over a month.

Week 1: Manage and observe. Dog-proof your home using everything from the earlier section, a safe space set up and temptations out of reach, plus a couple of new chew toys or a puzzle toy added in. And get your damage diary started, so you can see when and what they're chewing. This first week is less about training and more just about closing off the chances to get it wrong.

Week 2: Build the routine. Bring in more structure now including a short training session in the morning, a scent game at lunchtime, a food puzzle in the evening, or a longer walk worked in wherever it fits best. And keep using the swap technique every single time they pick up something they shouldn't, since consistency is what makes it stick.

Week 3: Practise calm alone time. Start gradually increasing how long your dog spends alone, always paired with a stuffed enrichment toy or a long-lasting chew. And keep an eye out for the signs of separation anxiety we covered earlier, adjusting how long you leave them based on how well they're coping. If they manage a short stretch calmly, add another five minutes next time.

Week 4: Review and adjust. Has destruction reduced? If yes, keep building on the same habits. But if little's changed, or things have gotten worse, it's time to bring in the vet or behaviourist for something more tailored to your dog. Improvement's rarely a straight line, but the overall trend should still be heading the right way.

That skirting board or your favourite pair of shoes don’t have to keep losing fights with your dog's teeth, we promise. Chances are there's something hiding within your dog that’s driving it, not spite but likely fear, boredom and anxiety.

And once you know exactly what it is, you can figure out what you need to turn it around. Just remember that it won't happen overnight, with most dogs showing some improvement over a few weeks. But slowly and surely, with some extra exercise, training, a safe environment and a solid collection of dog chew toys, you’ll start to see a difference.

And if it's your dog's chew toy setup that needs a refresh, we've got enrichment toys, puzzle toys and long-lasting treats to help you get there. We’ve tried and tested all of these ourselves on our own pups, and they’re perfect for turning chewing into something you're both happy about.

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