The Bullmastiff is one of the most impressive dog breeds of all. With his massive build, calm gaze and quiet presence, he looks like a living monument from times gone by. Behind this, however, is a highly sensitive, family-oriented dog who seeks closeness with his people and responds to children with astonishing patience. Anyone interested in this breed should know that behind the strength lies a remarkably calm temperament that needs clear leadership and plenty of understanding. In this guide, you'll learn what makes the Bullmastiff special, what to look out for when it comes to keeping and training him, and how to feed your four-legged friend a healthy, balanced diet.
Breed profile and temperament
The Bullmastiff is one of the large molossers and brings corresponding weight to the scales. Males reach a shoulder height of around 63 to 69 centimetres and weigh between 50 and 59 kilograms, while females are somewhat smaller and lighter. Despite this imposing size, the Bullmastiff is not a hyperactive dog. Indoors, he is usually extremely relaxed, almost laid-back, and likes to lie wherever he can keep an eye on what's going on.
His temperament is marked by a remarkable calmness, which can, however, quickly turn into determination as soon as he perceives his home or family to be under threat. The Bullmastiff was bred as a watchful protector, and this instinct remains deeply ingrained in him to this day. Towards strangers, he often behaves reserved and territorial, while within the family he is regarded as gentle, affectionate and remarkably patient with children. This combination of courage, vigilance and composure makes him a reliable family companion, provided he is well socialised and guided from the start.
Origin and history
The roots of the Bullmastiff lie in 19th-century England. English estate owners and gamekeepers needed a dog that could protect large estates from poachers without killing or unnecessarily injuring them. Mastiff and Bulldog were crossed in a ratio of roughly sixty to forty per cent, creating a dog that combined the strength and stamina of the Mastiff with the tenacity and courage of the Bulldog.
The so-called Gamekeeper's Night Dog was meant to track down intruders silently, bring them to the ground and hold them there until the gamekeeper arrived. Biting was not the goal; control and presence were what mattered. This historical task still explains many of the breed's character traits today: the pronounced territorial behaviour, the quiet vigilance and the enormous physical control with which a Bullmastiff acts even in tense situations. The breed was officially recognised by the English Kennel Club in 1924, and its fundamental character has changed little since then.
Keeping and training
A Bullmastiff is not a dog for beginners. His size, protective instinct and strong-willed nature call for an owner who is calm, consistent and confident. Harshness or even pressure have no place here, as a Bullmastiff tends to respond to rough treatment with stubbornness rather than obedience. Anyone who instead works with clear rules, plenty of patience and positive reinforcement will be rewarded with an exceptionally loyal and good-natured companion.
Early and thorough socialisation is essential for this breed. As a puppy, the Bullmastiff should get to know many different people, situations and other dogs, so that his natural wariness of strangers doesn't turn into excessive vigilance. Since he can be very difficult to manage as an adult once he has set his mind on something, it's worth investing in good training from the start, with professional support if needed.
Space requirements play an important role in keeping this breed. A house with a fenced garden is ideal, so the dog can indulge his guarding instinct without conflicts with neighbours or passers-by. His exercise needs are moderate; long walks and calm activity are usually sufficient, while excessive sport is rather unsuitable due to his joints and sensitivity to heat. If you're still unsure whether the Bullmastiff really suits your lifestyle and experience, the breed finder can help you find the right dog breed for your situation.
The right diet for the Bullmastiff
In hardly any other breed is the right diet so closely linked to health as in the Bullmastiff. As a large, heavy dog, he grows over a long period, often until his second year of life, and this growth demands particular attention. Growing too quickly due to overly energy-rich or mineral-rich food significantly increases the risk of skeletal disorders such as hip dysplasia. A puppy food specifically formulated for large breeds, with controlled calcium and protein content, supports slow, steady growth and protects the joints from the outset.
As an adult, the Bullmastiff tends towards being overweight, as his calm nature and comparatively low urge to move can quickly lead to a positive energy balance. Being overweight, in turn, puts additional strain on the joints and cardiovascular system, which is why regular weighing and a properly calculated food portion should become part of the routine. Both high-quality dry food and varied wet food can, when correctly dosed, form a balanced foundation. You can conveniently find out which composition best suits your Bullmastiff using the food finder.
A particularly important topic for deep-chested giant breeds like the Bullmastiff is gastric torsion (bloat). To reduce the risk, you should opt for several smaller meals a day rather than one large portion, avoid hasty eating and allow your dog plenty of rest before and after meals rather than exercising him straight away. Restraint is also worthwhile when it comes to treats, as lots of small calories add up quickly. High-quality natural treats without unnecessary additives are well suited to training and rewards without throwing the calorie balance off-kilter.
Robust chews and chew items
With his powerful jaw and pronounced urge to chew, the Bullmastiff is one of the most intensive chewers among dog breeds. Standard items from pet shops are often too small or too soft for him, which is why you should specifically look for particularly robust and long-lasting chews. Natural products designed for large, powerful chewers withstand a Bullmastiff's jaw significantly longer than conventional snacks while also providing meaningful, species-appropriate occupation.
Chewing serves several important functions for the Bullmastiff: it reduces stress, provides mental stimulation without physical overexertion, and supports dental care along the way. Precisely because this dog is naturally rather calm, an extended chewing session can be an excellent counterbalance to walks. In the natural chews category, you'll find a selection tailored to the needs of powerful chewers. To make sure size and hardness really suit your dog's age and bite, it's worth taking a look at the chew finder, which provides suitable recommendations. Nevertheless, always keep an eye on your Bullmastiff while chewing, especially with very hard items, to prevent injuries to teeth or gums.
Health and care
Like many large breeds, the Bullmastiff is prone to hip dysplasia. Controlled growth during puppyhood, sufficient but not excessive exercise, and a healthy body weight throughout life noticeably reduce the risk. Regular veterinary check-ups, especially during the first two years of life, help to identify any abnormalities at an early stage.
The previously mentioned gastric torsion remains a topic that should accompany you as an owner throughout his life, even in adulthood. Continue to pay attention to calm feeding times, several small meals and rest after eating. Another important point is the Bullmastiff's sensitivity to heat: his short muzzle, dense coat and high body weight significantly hinder heat regulation. On warm days, you should move physical exertion to the cooler morning or evening hours and give your dog access to shade and fresh water at all times.
In terms of grooming, the Bullmastiff is pleasantly uncomplicated. His short, dense coat only needs occasional brushing to remove loose undercoat. The facial skin folds deserve a bit more attention and should be cleaned regularly so that no moisture or bacteria can build up there. Life expectancy averages eight to ten years, a figure that can be positively influenced by a properly tailored diet, moderate exercise and attentive preventive care.
Frequently asked questions
How old does a Bullmastiff get?
The average life expectancy is around eight to ten years. As with most giant breeds, weight management, joint-friendly exercise and an age-appropriate diet play a decisive role in how fit and trouble-free your Bullmastiff's years can be.
Is a Bullmastiff suitable for beginners?
Generally, rather not. His size, pronounced protective instinct and independent character call for an experienced owner who is calm, consistent and confident. Beginners should familiarise themselves thoroughly with the breed beforehand or seek professional support with training.
How much exercise does a Bullmastiff need?
His exercise needs are moderate. One to two calm walks a day along with enough space to lie down and observe are usually sufficient. You should avoid intensive sport or long runs in the heat because of his joints and limited heat regulation.
Does the Bullmastiff get on well with children?
With good socialisation, the Bullmastiff is considered remarkably patient and family-oriented; many owners describe him as a gentle giant with children. Because of his weight, however, interactions between the dog and small children should always be supervised.
Temperament & who the Bullmastiff suits
In short, the Bullmastiff is best suited to: experienced owners with space who are looking for a calm guardian of the house.
- Size: very large (giant)
- Energy level: calm
- With children: very good with children
- Flat living: rather unsuitable for flats
- For beginners: rather for experienced owners
- Coat care: low maintenance
- Trainability: moderately eager to learn
- Alertness: pronounced watchdog
Not sure whether this breed suits your life? Find out with our breed finder "Which dog breed suits me?"
A good match: Natural chews
