Business Details
50+ Years
experience
Emergency
services
Trusted HVAC Services in Leonardtown, MD
Hancock Refrigeration Heating & Air Conditioning has been dedicated to keeping homes and businesses comfortable since 1970. Founded as an appliance repair company by Mark Hancock's father, we evolved into a full-service HVAC contractor while maintaining our core values of honesty, integrity, and personal attention. As a family-owned business now led by Mark, we take pride in our 55-year legacy of serving Southern Maryland with NATE-certified technicians who provide expert heating, cooling, and indoor air quality solutions. Our team's deep local knowledge and commitment to transparency are reflected in our 2-year free labor warranty and 100% satisfaction guarantee. As a Trane Comfort Specialist since 1992, we offer industry-leading products backed by rigorous service standards.Our Peak Performance Maintenance Plan ensures systems operate at peak efficiency year-round. We distinguish ourselves through 24/7 emergency service availability and personalized consultations that prioritize customer needs over flat-rate pricing models. Our technicians' expertise spans residential and commercial systems, including ductless solutions, heat pumps, and complex commercial HVAC installations. With four generations of family involvement and decades of combined experience, we continue delivering the same honest, thorough service that built our reputation.
Services
AC Repair
Heating Installation
HVAC Maintenance
Heat Pump Services
Indoor Air Quality
Ductless Systems
Commercial HVAC
Thermostat Installation
Emergency Repairs
Maintenance Plans
Details
- Year established: 1970
Highlights and features
- 24/7 emergency service availability
- Family-owned for 55 years with local expertise
- NATE-certified technicians with specialized training
- 100% satisfaction guarantee on all services
- 2-year free labor warranty included
Associations and certifications
- Trane Comfort Specialist
- RSES
- ACCA
What people say
Outstanding installation job
Professional and respectful
100% satisfaction guarantee
Expertise and dedication
Personalized attention
Services
AC Repair
Our NATE-certified technicians provide prompt air conditioning repairs for all makes and models. With fully stocked service vehicles and 24/7 emergency availability, we restore cooling systems efficiently. We diagnose issues accurately and provide transparent pricing with no hidden fees. Our repairs focus on restoring optimal performance while maximizing system longevity through proper diagnostics and quality replacement parts.
Heating Installation
As Trane Comfort Specialists, we install high-efficiency heating systems tailored to your home's specific needs. Our Manual J load calculations ensure proper equipment sizing while our 2-year labor warranty covers all installations. Our technicians handle complete system replacements including boilers, furnaces, and heat pumps, ensuring proper installation according to manufacturer specifications and local building codes.
HVAC Maintenance
Our Peak Performance Maintenance Plan includes comprehensive inspections of all HVAC components. Technicians perform critical tasks like thermostat calibration, filter replacement, coil cleaning, and refrigerant level checks. Regular maintenance improves energy efficiency by up to 30%, extends equipment lifespan, and helps prevent unexpected breakdowns through early issue detection.
Heat Pump Services
We specialize in heat pump installation, repair, and maintenance for residential and commercial properties. Our technicians handle both ducted and ductless systems, optimizing performance for Maryland's climate conditions. Services include seasonal efficiency checks, refrigerant management, and defrost cycle optimization to ensure reliable year-round operation with minimal energy consumption.
Indoor Air Quality
Our IAQ specialists offer whole-home air purification systems, humidity control solutions, and ventilation upgrades. We install Trane CleanEffects air purifiers, whole-house humidifiers, and energy recovery ventilators to address specific air quality concerns. These solutions help reduce allergens, control moisture levels, and improve overall indoor comfort while enhancing HVAC system efficiency through cleaner components.
People
Mark Hancock
Owner
Third-generation HVAC professional with 40+ years industry experience. Took over family business in 1996, maintaining its tradition of honest service and technical excellence while expanding into modern HVAC solutions.
Brad Wheeler
Comfort Consultant
Experienced HVAC advisor known for personalized service and technical expertise. Specializes in system sizing and custom solutions, earning recognition for exceptional customer service and problem-solving abilities during installations.
Questions
What HVAC services do you offer?
We provide complete heating, air conditioning, and ventilation services including installation, repair, and maintenance for residential and commercial properties.
Do you offer emergency HVAC service?
Yes, we provide 24/7 emergency service with same-day availability for urgent heating and cooling needs.
What areas do you serve?
We serve Leonardtown, Mechanicsville, California, Lusby, La Plata, Prince Frederick, and surrounding areas in Southern Maryland.
Are your technicians certified?
All our technicians are NATE-certified with specialized training in modern HVAC systems and Trane equipment.
Do you offer financing options?
Yes, we offer special financing through Wells Fargo and Synchrony for qualifying HVAC system replacements.
What warranties do you provide?
We offer a 2-year free labor warranty on all installations with manufacturer warranties covering equipment components.
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