The Bullmastiff makes a very good companion dog and family pet. Nevertheless, he is a guard dog by nature and so could well be called
a family guardian. They can be described as: intelligent, loyal, stubborn, laid back, family oriented, stoic, and even-tempered.
The Bullmastiff rarely barks, unless there is a problem he can't investigate, then he barks to warn the owner of the problem.
There is a varying amount of slobbering associated with a Bullmastiff, the most occurs usually after eating or drinking.
They are a dog that requires consistent and fair training (with the addition of food treats, the learning is rather quick).
he was bred as an estate guard dog, your yard must be fenced to give him his boundaries. He will naturally be defensive of his own yard, so all gates must be secure. It would be quite upsetting for an unknowing acquaintance to enter your yard for a friendly visit, to find a Bullmastiff coming to investigate him at full speed. On the positive side, the Bullmastiff is a knock-down-and-pin
dog, not a biter, so your 'guest' may feel a little indignant, but will come to no harm as long as he does not retaliate. If he does, the dog will stand no nonsense and is quite able to protect himself and his family.
In relationship to people, Bullmastiffs
tend to be one family dogs. They bond extremely close with 'their' people and are usually suspicious of strangers, who they tend to 'size' up. Early puppy interaction with lots of different people (and dogs) is very important to overcoming potential problems
due to this trait.
They also naturally 'guard' their family members, making them constantly attentive and curious about their surroundings and any perceived dangers. Without ongoing training and socialization, the Bullmastiff can become over-protective
and over-aggressive towards strangers and other dogs, etc.
As deceiving as their looks can be, Bullmastiffs can be quite affectionate & demonstrate it by loving to be by your side (or sitting/laying on some part of your body) and letting you know
when they want a pat by putting their paw on you (usually when you are ready to go out, and they have a dirty paw). Because of their love of their family, they must be integrated as a member of that family. They can live outdoors in a sheltered dog house,
but will be happiest if they can spend a certain amount of time in the house with their 'family'.
Bullmastiffs are also very good with children. Their easy going nature and calmness, tend to make them able to tolerate the energy of younger kids. But again,
due to their large size, constant parental supervision is necessary.
Once a person obtains his or her first bullmastiff, a new fancier is usually born, and tends to be hooked for life - this is one of the greatest tributes to the breed.