Hello! My name is Justin Sainsbury and I am the owner of Big Bury’s English Mastiffs. I am an up and coming dog breeder located in Moses Lake, Washington. My mission is to uphold the standard of the English Mastiff breed to the highest quality, producing healthy and well tempered dogs while finding high quality responsible forever homes.

In 2021, I got my English Mastiff, Sky. I instantly fell in love with her and the breed. In 2023, we started going to shows and have been continuing to do so. Sky has been health tested, with no signs of any of the genetic diseases that could possibly affect the breed and end their lives. She is also OFA tested to ensure puppies are not predisposed to any debilitating diseases such as hip dysplasia or elbow dysplasia.

My current goal is to meet new people who share the same love for the English Mastiff breed. Creating friendships and breeding opportunities for our dogs. While breeding to the standard, improving the breed as much as possible, and following all AKC and MCOA standards. I want to ensure that all future dogs coming from me will be big, beautiful, well-tempered, and healthy. We are proud members of MCOA.

If you want to stay updated on our journey or just waiting for puppies, follow our socials. Tap the icons in the top right corner of the page for easy access to our socials! Feel free to fill out a puppy application and read are contract on are contract page! Also anyone is welcome to personally message me on are our socials or visit the contact page and I will get back to you as soon as possible and answer all questions to the best of my ability!