Blue Line K-9
Service area: Serves Baltimore and Harford Counties in Maryland, including Joppa, Bel Air, Cockeysville, and Havre De Grace; also serves Garner/Clayton, NC and Katy/Cypress, TX.
Service Overview
Types of Dog Training
- Family Dog
- Behavior Modification
- Working Dog
Specialty Focus Areas
- Puppy Training
- Basic Obedience
- Leash Pulling
- Reactivity / Aggression
- Barking Excessively
- Separation Anxiety
- Recall
- Biting / Nipping
- Fearfulness
Training Formats Offered
- Private Lessons
- Group Classes
- Private Facility
- Board and Train
- Day Training
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:
- ✓ Positive Reinforcement Only
Equipment:
- ✓ Clickers
- ✓ Food Rewards
- ✓ Harnesses
- ✓ Flat Collars
- ✓ Obstacle Courses
Blue Line K-9 offers three main programs: Gold Training (6 one-on-one lessons with owner participation), Platinum Training (7 drop-off sessions with dog returning home nightly), and Camp Blue Line K-9 (2-week full immersion boarding). All programs include lifetime support, access to online training and open sessions, and training equipment. Training is customized, environment-specific, and includes follow-up practice of just 20 minutes per day. Additional ongoing support is available through alumni access and community events.
Pricing & Policies
Pricing Summary
Training packages include Gold (6 one-on-one lessons), Platinum (7 drop-off sessions with nightly returns), and Camp Blue Line K-9 (2-week intensive boarding). All packages include $2,910 in bonuses: 1-year access to online training ($1,000 value), open trainings ($780), pack walks ($780), and training equipment ($350). Specific pricing not listed; requires free consultation for details.
Testimonials
Signed my 9-month-old up for the Ultimate Platinum Plus program and it was the best decision! She was very shy and nervous with almost no training beforehand and after just a few sessions she had amazing improvement… Now as soon as we pull in the lot she’s jumping out of the car seat because she loves it there! – Client
Our 8-year-old pit mix, Buster, just graduated from the Platinum Program and we couldn’t be happier! Everyone was so kind, friendly, and responsive… Our home is calmer and more peaceful now and we are all happier! – Client
Tux and I are enjoying a lovely spring Friday out on the farmland… this literally wouldn’t be possible without the learning, compassion, and care we’ve experienced at Blue Line! – Client
About the Trainer
Blue Line K-9 is a dog training business based in Joppa, MD, owned and operated by Master Trainers Hollie Kelly and Jason Carroll. They offer personalized, science-based training using operant and classical conditioning to help dog owners build strong, lasting bonds with their pets. Their programs are designed for all breeds, sizes, and ages, with a focus on making training fun, easy, and effective. They provide private in-home and facility-based sessions, group classes, and intensive board-and-train programs including Camp Blue Line K-9. Training occurs in real-life environments like parks, homes, and while jogging. They empower owners with daily 20-minute practice routines and offer ongoing support outside of sessions. Additional services include access to online training, open training sessions, pack walks, training equipment, and a pet supply store. Their team is known for compassion, patience, and treating clients and dogs like family.
They serve communities across Baltimore and Harford Counties in Maryland, as well as areas in North Carolina and Texas. Blue Line K-9 also offers a free phone consultation to help dog owners determine the best training path for their pet.
Accomplishments
Blue Line K-9 has been named “World’s Greatest” dog training service and maintains a high client satisfaction rating. Owners Hollie Kelly and Jason Carroll are Master Trainers with decades of combined experience; Hollie began training animals at age 9 and Jason trained his own rescued dog to overcome aggression. They are actively involved in community rescue efforts and foster programs.
How to Get Started!
Prospective clients complete an online form providing details about their dog and goals. A Blue Line K-9 specialist then contacts them to recommend customized training options during a free phone consultation.

Contact Information
Availability
- Weekdays
- Weekends
- Morning
- Afternoon
- Evening
Hours
Monday: 7:30am-6:45pm
Tuesday: 7:30am-6:45pm
Wednesday: 7:30am-4:45pm
Thursday: 7:30am-6:45pm
Friday: 7:30am-6:45pm
Saturday: 7:30-10:45am
Sunday: 4-6:45pm
Certifications
- Credentialed
Associations
- Accredited
Languages
- English
Other Services Offered
- Pet supply store
- Pet boarding service
- Pet trainer
Location
1501 Singer Rd, Joppatowne, MD 21085Listing Tools for Trainers
For Blue Line K-9 Only
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