Navigating canine compatibility
Introducing a new dog to your resident furry friend can be challenging. At Hope4Paws UK & Spain, we're dedicated to providing the guidance and support you need for a harmonious home. This policy outlines our approach to resident dog compatibility.

Compatibility policy - Resident dogs
At Hope4Paws UK & Spain, we aim to match dogs with the best possible homes and will always do our best to assess their compatibility with other people, resident pets, and stimuli. However, in relation to other resident dogs, despite thorough assessment, there are no guarantees that two dogs will get along in every environment. This policy outlines the considerations and responsibilities when introducing your new rescue dog to other dogs in your household or environment.

Dog compatibility assessment
We will strive to provide accurate information about the dogs’ personalities based on the details provided by the rescuers, previous owners (where relevant), and the observations and prior knowledge gathered during the time the dogs have been in the kennel.
However, it is important to note that:
- Dogs may behave differently in new surroundings or when faced with unfamiliar dogs. For various reasons, even dogs who have previously been friendly toward other dogs may not get along in their new home.
- While we do our best to ensure the accuracy of our assessments, there is always a small risk that dogs will not be compatible with one another once they are in their new home.

Introducing your new dog to your resident dog
Battersea Dogs Home says:
"What to do before bringing your new dog home:
Before your new dog comes home, set up the environment in a way that gives both dogs the best chance of getting used to each other on their own terms."
Take them for a walk
When you first get home with your new dog, don’t go indoors straight away. Instead, take both of your dogs for a walk together in an area with lots of open space where they can take their time to explore and get to know one another in their own time on more neutral ground. You may have to arrange for a friend or family member to help you by walking one of the dogs so you can give them as much space as they need to be able to relax.
It’s natural to be excited but try and be as casual as possible and allow them to interact in their own time. Don’t force them towards each other and don’t pick up either dog or try to push them to say hello as this could create tension between them. Instead, praise any positive behaviours and let things happen in their own time. Bear in mind if you have had a particularly long or stressful journey home, your new dog might need a while to calm down on this walk before they’re in the right mood to calmly and successfully greet your resident dog.
Time alone
Whilst it is important for social dogs to spend time together, they will also need some one-on-one time with you and will need to practice some time apart. Your new dog will need to build a bond with you to feel safe and secure, and your existing dog will still need love and attention to feel secure despite the change in household dynamics. This is especially true when a puppy or juvenile dog comes home to live with an adult dog. The younger dog will need a lot of training and input to develop into a well-rounded dog, and the adult dog will need some breathing space so they’re not being pestered to play 24/7.
Using baby gates in the home can be a great help with this, as they act as a physical barrier but not a visual one. Consider where you could utilise them in the home and be sure to have them set up before bringing the new addition home. You should always supervise dogs when separating them with a baby gate to ensure neither attempt to jump over it or bother the other dog through it. Once your new dog is home you can spend some time playing with or training one dog while the other is on the other side of the gate kept occupied with a Kong or chew. This still counts as socialisation for the dogs, with each dog learning to relax around one another in a low-pressure setting.
Toys
Some dogs love them, and some dogs aren’t particularly bothered by them. It may be fine leaving dog toys lying around with only one resident dog, but a lack of supervision around toys could lead to squabbles in a household with more than one dog. Think about getting sealable boxes for your different dogs’ toys and where you would place these in different places to prevent issues.
Food
Where will the new dog eat? Where does your current dog eat? Feeding dogs in the same area can put unnecessary pressure on them which can lead to squabbles. Prevention is always better than cure, so where possible, feed each dog in a separate room and have a few water bowls dotted around the house. Be sure to separate the dogs when giving any chews and bones, as these are prized items that dogs are more likely to guard from each other.
Bed
Settling into a brand-new environment can be very stressful for a dog. Think about safe spaces for each of your dogs; places that they can retreat to when they want a little “time out” from one another. Not all dogs will want to cuddle up together to sleep, or even be in close proximity to another dog when sleeping. Dogs are at their most vulnerable when they’re asleep, so bear this in mind when thinking of what type of bed to get your new dog and where to place it in relation to your existing dog’s bed. If your new dog is used to a certain type of bed, like a covered crate, soft bed, hard bed, mattress etc it might be that providing them with a similar kind of bed could help them feel more comfortable.
Watch for signs of stress and try to minimise it!
It’s important to monitor your dogs carefully and read for signs in their body language that indicate they could do with a little break apart. Keep the first two-three weeks as calm as possible and try and avoid having lots of visitors come over to say hello to your new dog. The first few weeks are crucial in establishing routine and stability in the home, so the fewer external factors you have to deal with in these early stages, the better. Once your dogs are more comfortable with each other and have both adjusted to the new routine and changes in environment then they will be much more comfortable with other people and busier situations
Signs of a Stressed Dog
Behavioural changes can include excessive panting, yawning, lip licking, pacing, whining, barking, and changes in eating or elimination habits, such as peeing or defecating inside. Subtle signs like refusing treats or avoiding eye contact are also indicators.
Body language
Ears: Pinned back against the head
Eyes: "Whale eye" (showing the whites of the eyes), dilated pupils, or rapid blinking
Mouth: Excessive lip licking or smacking
Body: Stiff or tense posture; a tucked tail or tail held rigidly upright
General: Yawning when not tired
Behaviour
Vocalizations: Whining, excessive barking, or howling
Movement: Pacing, restlessness, or inability to settle down
Social: Hiding, retreating, avoiding contact, or cowering
Eating: Refusing food or treats, or changes in eating habits
Other: Excessive drooling, shedding, or self-grooming
Destructive behaviour: Chewing or other destructive actions
Accidents: Urinating or defecating in the house
Battersea Dog's Home says;
'When we get a new dog, we all want them to get on well with our other family pets and immediately feel like members of the family. It is important however, to take the time to carefully plan and manage the first meetings between new and existing dogs, and to make sure that each animal is given plenty of time and space apart during the settling process. By planning in advance, you are much more likely to be able to build successful relationships in a household with multiple dogs.'
Extracts taken from Battersea Dogs Home

Reporting compatibility issues
If the dogs do not get along after an extended settling-in period (we suggest 3 months), or show signs of aggression or tension, please:
Follow the Re-Homing & Support Dog Policy (Policy Number 1):
If your new dog cannot co-exist peacefully with your current dog(s), you will need to follow our re-homing and support dog policy.
Training and Support:
We will provide you with information on relevant training, which will be at your own cost. Before we will consider re-homing, you will be required to obtain a behavioural assessment and guidance on how to work with the dogs to reach a positive outcome. After the training period, if it becomes evident that the dogs cannot live together, we offer RBU (Rescue Backup Support), and we will work as quickly as possible to find a new home for the dog, as stated in the terms of our policy.
Terms and conditions are stated in Policy 1: Rehoming Your New Dog.
Limitation of Liability
While we take every precaution to assess whether our rescue dogs are compatible with other dogs, we cannot take responsibility for any issues that arise after adoption. Rescue animals, by nature, always come with a certain degree of uncertainty, and even the most thorough testing may not predict how a dog will behave in a new environment.
By adopting a dog from Hope4Paws UK & Spain, adopters understand and accept the small risks involved in introducing a rescue dog to other dogs and agree to take necessary precautions to ensure safety and compatibility.