Most dogs can learn to live together. What decides whether it goes smoothly is the first meeting and the first month, and both are easy to get wrong with the best intentions.
Westies generally live well with other dogs. The two things worth knowing are that same-sex pairs clash more often in terrier breeds, and that resource guarding is the usual flashpoint.
The short version
- Meet on neutral ground, both on loose leads, one handler each.
- Walk together before they greet face to face.
- Feed separately and pick up all toys and chews for the first month.
- Slow is faster. A rushed introduction can take months to undo.
Before the dogs meet
- Pick genuinely neutral ground. Not the park you walk your dog in daily — that is his territory too.
- One handler per dog, both confident and calm. Two dogs on one person is how introductions go wrong.
- Set the house up first, with separate beds, separate feeding spots and a baby gate ready.
- Remove all toys, chews and food bowls before the new dog comes in.
- Exercise both dogs beforehand, so neither arrives full of energy.
The introduction, step by step
- Start at a distance, walking in the same direction on opposite sides of a path or field. No greeting yet.
- Close the gap gradually over ten or fifteen minutes, watching both dogs rather than each other.
- Allow a brief sniff on loose leads, then move on after a few seconds. Short and positive beats long and tense.
- Repeat two or three times, each slightly longer, praising calm behavior.
- Walk home together if you can, arriving as a group rather than one dog admitting another.
- Let the resident dog in first, then the new dog, leads on, doors open, nothing to compete over.
End every session while both dogs are still relaxed. Stopping too late is the commonest mistake, and the one that creates a bad first association. Terrier traits that complicate this are covered in our guide to barking, digging and prey drive.
Reading how it is going
| Signal | What it means | What to do |
|---|---|---|
| Play bow, loose wagging body | Genuine invitation to play | Carry on |
| Curved approach, sniffing rear | Normal, polite greeting | Carry on |
| Shaking off after contact | Self-regulating, releasing tension | Fine; give a pause |
| Stiff body, high slow tail | Tension building | Move apart, increase distance |
| Hard staring, freezing | A serious warning | Separate calmly and immediately |
| Lip curl, low growl | Clear communication, not aggression | Increase distance; never punish it |
| One dog repeatedly turning away | Asking for space | Respect it and end the session |
Reading these signals reliably is worth learning properly — our guide to canine stress signals covers the ladder from mild discomfort to a bite.
The first month at home
| Period | How to manage it | What you should see |
|---|---|---|
| Days 1–3 | Separate spaces, supervised contact only, leads on indoors | Curiosity, some avoidance, occasional grumbling |
| Week 1 | Short supervised sessions; separate feeding and sleeping | Tolerance, brief parallel activity |
| Weeks 2–3 | Longer sessions; still no free access to toys or chews | First play, choosing to lie in the same room |
| Week 4+ | Gradual normal access, reintroducing toys one at a time | Settled coexistence; friendship may take months |
The terrier-specific parts
Two things come up more in this breed group than in dogs generally, and both are manageable if you plan for them.
Same-sex pairings. Two females in particular can clash in terrier breeds, and disputes tend to escalate faster. Opposite-sex pairs are usually the easier bet, and any responsible rescue will discuss this rather than assume.
Whether a second dog suits your household at all is worth thinking through first — our honest guide to living with a Westie covers the running costs and time two dogs actually take.
Resource guarding. Food, chews, beds and sometimes a person. The management is simple — separate everything for the first month — but skipping it is how a single dispute becomes a pattern.
The International Association of Animal Behavior Consultants maintains a directory of qualified behavior consultants and owner resources, which is the place to look if introductions are not going well.
What not to do
- Do not introduce them in the house. Territory is the whole problem.
- Do not hold the leads tight. Tension travels down the lead and creates the reaction you are bracing for.
- Do not let them “sort it out”. They usually do not, and the version they settle on may not be one you want.
- Do not leave them alone together for at least the first few weeks.
- Do not punish growling. You remove the warning and keep the conflict.
- Do not force interaction. Some dogs simply coexist, and that is a fine outcome.
Frequently asked questions
How do I introduce a new dog to my current dog?
On neutral ground, both on loose leads with one handler each. Walk in the same direction at a distance first, close the gap gradually, then allow a brief sniff and move on. Keep the first sessions short and positive.
How long does it take for two dogs to get along?
Most reach settled coexistence within about a month. Genuine friendship can take several months, and some dogs never become playmates but live together perfectly well.
Are two Westies a good idea?
Often yes, though opposite-sex pairs tend to be easier. Same-sex terrier pairs, especially two females, clash more frequently and disputes escalate faster.
Should I let my dogs fight it out?
No. Dogs rarely resolve conflict productively, and letting a dispute run can establish a pattern. Separate calmly, increase distance, and reintroduce more slowly.
My new dog growls at my resident dog. Is that bad?
A growl is communication, not aggression, and it is useful information. Increase the distance and slow the process down. Never punish it, or you remove the warning while leaving the discomfort.
Adopting a second dog
If you are considering it, tell the rescue about your resident dog in detail — age, sex, temperament, how it is with other dogs. Matching on that is most of what determines success.
The Westies currently available for adoption note how each has been assessed with other dogs, and the first 30 days with a rescue Westie covers the settling period this sits inside. If you would rather help without taking on a second dog permanently, fostering suits multi-dog households well.