Berkeley K-9 School For Dogs
Service area: Serves the Eastern Panhandle of West Virginia and surrounding areas including Inwood, Martinsburg, Hagerstown, Frederick, Winchester, Front Royal, Berryville, and nearby regions.
Service Overview
Types of Dog Training
- Family Dog
- Service Dog
- Therapy Dog
- Competition / Agility
- Working Dog
- Behavior Modification
Specialty Focus Areas
- Basic Obedience
- Puppy Training
- Leash Pulling
- Reactivity / Aggression
- Jumping on People
- Barking Excessively
- Separation Anxiety
- Biting / Nipping
- Potty Training
- Resource Guarding
- Fearfulness
- Recall
Training Formats Offered
- Private Lessons
- Group Classes
- Private Facility
- Board and Train
Program Formats
- One-Time Consultation
- Sessions Package
- Ongoing Weekly
- Intensive Program
Types of Dogs
- Small
- Medium
- Large
- Giant
- Herding
- Sporting
- Working
- Hounds
- Terriers
- Doodles
- Brachycephalic
Age of Dogs Trained
- Puppy (<1 year)
- Adolescent (1-2 years)
- Adult (2-8 years)
- Senior (8+ years)
Dog Training Methodology
Methods:
- ✓ Balanced Training
Equipment:
- ✓ Clickers
- ✓ Food Rewards
- ✓ Harnesses
- ✓ Flat Collars
- ✓ Martingale Collars
- ✓ Pinch Collars
- ✓ E-Collars
- ✓ Obstacle Courses
Training programs include basic and advanced obedience, behavior modification, and specialty training such as personal protection and assistance dog work. Private lessons are tailored to individual needs and can be conducted at the facility or in-home. Group classes are available for socialization and reinforcement. The residency training program is a two-week intensive in-house program where dogs stay at the facility and receive daily one-on-one training under supervision. Puppy preschool is offered to prevent early behavioral issues. Agility training is available using their full outdoor course.
Pricing & Policies
Pricing Summary
Pricing details are not publicly listed. Private lessons, group classes, and the two-week residency program are offered, with private lesson participants eligible for free weekly group classes. Specific rates require direct inquiry.
Policies
No explicit cancellation or rescheduling policies are stated on the website. Clients are encouraged to contact the facility directly for scheduling inquiries.
Testimonials
“Marvin was very welcoming and straight forward with how he went about training… He took time to show me what to do and how to help Turtles with becoming a better, more well behaved dog. I highly recommend Marvin to anyone who is looking to better their dog, even if you have a very small dog.”
– Madison Cunningham with Turtles
“We saw amazing results… Bentley is much more relaxed and well disciplined. Not only has Marvin taught us how to be more at ease with Bentley but also made us more confident with handling him. Bentley has become a wonderful member of our family. We are so certain of Marvin’s skills; we have referred him to several friends.”
– Sharon and Tom Quick with Bentley
“The first thing that we recognized was that Marvin is caring and compassionate and has a true love for animals; he has a special way of calming the pet and the owner. Our dogs are family to us and while we would do most anything for them, we were at wits end and felt as if we were running out of options. Marvin saved us, and he can help you too!”
– The ZaGara’s with Chu Chu, Brawler, Bucho and Magpie
About the Trainer
Berkeley K-9 School for All Dogs is a dog training business founded in 1995 by Marvin Mason, a Certified Master Trainer with over 30 years of experience. The school offers basic and advanced obedience training, behavior modification, and specialty training including personal protection, assistance dog training, and therapy dog preparation. They provide private lessons, group classes, and an intensive two-week residency training program where dogs stay at their facility. Their training approach focuses on understanding each dog’s temperament and tailoring methods to the owner’s goals. They accept all breeds, ages, and personalities, including fearful, aggressive, or shy dogs. The facility includes a fully heated and air-conditioned kennel with indoor and outdoor stalls, an 80×80 play run, and a full agility course. Boarding services are available seven days a week, and they also offer in-home evaluations. Their unique advantage is their willingness to work with dogs other trainers may consider untrainable, with many testimonials highlighting their success with severe behavioral issues.
Marvin Mason’s training philosophy emphasizes patience, calm leadership, and owner education, believing that dog training is primarily owner training. He uses a balanced approach combining positive reinforcement with corrections when necessary, and his methods are rooted in decades of hands-on experience from farm work to law enforcement training. Clients appreciate his compassionate, no-nonsense style and his ability to restore harmony in households with multiple dogs or severe behavioral challenges.
Accomplishments
Marvin Mason is a Certified Master Trainer graduated from the National K-9 School of Dog Trainers (1995) and attended the American Canine Academy (1993-1994). He trained Berina, his Rottweiler, to become a certified assistance dog capable of performing tasks like retrieving objects, turning on lights, and assisting with wheelchairs. He has trained dogs for law enforcement and has been featured in local media for community outreach and school career days.
How to Get Started!
Prospective clients are encouraged to book a first-time lesson via the website’s contact form. An initial assessment is conducted to determine the dog’s needs and tailor a training plan. Private lessons, group classes, or the residency program can be selected based on the evaluation.

Contact Information
Availability
- Weekdays
- Weekends
- Morning
- Afternoon
- Evening
Hours
Monday: 10am-9pm
Tuesday: 10am-9pm
Wednesday: 10am-9pm
Thursday: 10am-9pm
Friday: 10am-9pm
Saturday: 9am-5pm
Sunday: Closed
Certifications
- Credentialed
Associations
- Accredited
Languages
- English
Other Services Offered
- Pet boarding service
Location
3050 Arden Nollville Rd, Inwood, WV 25428Listing Tools for Trainers
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