Business Details
48 Years
experience
Emergency
services
Your Trusted HVAC Partner in Maryland
A.J. Michaels has been a trusted leader in HVAC, plumbing, and home performance solutions since 1978. As a locally owned and family-operated business, we prioritize personalized service and community impact, ensuring every project meets the highest standards of quality and efficiency. Our team of certified professionals holds Master licenses in plumbing, heating, air conditioning, and electrical work, backed by Building Performance Institute certification for whole-home energy solutions. Recognized by the Department of Energy and Carrier Corporation, we combine cutting-edge technology like Aeroseal duct sealing and SpacePak systems with a commitment to no-subcontractor service.We specialize in tailored solutions for both residential and commercial clients, offering 24/7 emergency support and financing options to ensure accessibility. With over 35,000 systems installed and an A+ BBB rating, our reputation is built on transparency, expertise, and unwavering customer satisfaction.
Services
Heating Systems
Cooling Systems
Ductless HVAC
Plumbing Services
Energy Audits
Duct Sealing
Water Heaters
Service Agreements
Details
- Year established: 1978
Highlights and features
- We hold Master licenses in plumbing, heating, air conditioning, and electrical work.
- Certified by the Building Performance Institute for whole-home energy evaluations.
- Recognized by the Department of Energy for energy savings achievements.
- No subcontractorsonly our own trained technicians handle your project.
- Active participants in developing Maryland's energy incentive programs.
Associations and certifications
- Building Performance Institute
- Department of Energy Century Club Award
- Carrier President's Award
- Baltimore Gas and Electric Outstanding Achievement Award
- Maryland Department of Housing and Community Development
What people say
Exceeded expectations
Professional and courteous
Prompt service
Affordable pricing
Expertise
Services
Heating System Installation
We install high-efficiency heating systems including boilers, furnaces, and heat pumps for residential and commercial properties. Our technicians assess your space's unique needs, recommend fuel-efficient options, and ensure proper SEER-rated installations. With Master-certified expertise and no subcontractors, we guarantee energy savings and system longevity while offering 24/7 emergency service across Maryland.
Ductless HVAC Solutions
Our ductless HVAC installations cater to older homes and commercial spaces requiring zone-specific climate control. Using SpacePak technology, we deliver efficient cooling and heating without invasive ductwork. Certified technicians handle custom installations, ensuring optimal placement and energy efficiency while maintaining historic building integrity across Baltimore and Annapolis areas.
Energy Performance Audits
We conduct comprehensive BPI-certified energy audits to identify efficiency gaps in insulation, ductwork, and HVAC systems. Our engineers analyze energy usage patterns and recommend targeted improvements like Aeroseal sealing, which reduces energy loss by up to 30%. These audits form the basis for customized retrofitting plans that maximize savings through state incentive programs.
Plumbing Services
Our Master-licensed plumbers handle residential and commercial HVAC-related plumbing, including water heater installations, pipe repairs, and backflow prevention. We specialize in integrating plumbing systems with heating solutions for optimal efficiency. Emergency services are available 24/7, with guaranteed same-day response times for critical system failures affecting comfort or safety.
Commercial HVAC Maintenance
We provide tailored maintenance agreements for commercial properties, including rooftop systems, industrial boilers, and multi-zone HVAC units. Our engineers perform seasonal tune-ups, programmable thermostat installations, and air quality assessments. With experience servicing churches, apartment complexes, and cruise ships since 1978, we ensure minimal downtime and maximum energy efficiency for business operations.
People
Michael Giangrandi
President
Founder and president since 1978, Michael leads with over four decades of HVAC industry expertise. He pioneered the company's no-subcontractor model and developed energy-saving programs recognized by the Department of Energy. His leadership maintains A.J. Michaels' reputation for technical excellence and community-focused service.
Jim Blake
Senior Technician
Certified HVAC specialist with 20+ years of experience, Jim excels in complex system repairs and energy-efficient installations. His expertise in SpacePak systems and customer-centric approach have earned multiple five-star reviews. Jim's technical proficiency ensures solutions that balance performance with cost-effectiveness for residential clients.
Ryan Small
Service Manager
Ryan oversees daily operations and emergency service coordination. With a background in mechanical engineering, he ensures all technicians maintain Master-certified standards. His team manages over 1,000 annual service calls, emphasizing prompt response times and transparent communication for both residential and commercial clients.
Questions
What HVAC services does A.J. Michaels offer?
We provide heating, cooling, ductless systems, plumbing, and energy efficiency solutions for residential and commercial clients.
Do you offer emergency HVAC service?
Yes, we provide 24/7 emergency service with no extra charges for nights or weekends.
Can you service older HVAC systems?
Yes, we specialize in repairing and upgrading older systems like SpacePak units with cost-effective solutions.
Are financing options available?
Yes, we offer financing programs and help customers access state energy incentive rebates.
What areas do you serve?
We serve Baltimore, Annapolis, and surrounding areas in Central Maryland.
How do you ensure quality work?
We use only our own certified technicians, never subcontractors, and guarantee all workmanship.
