Business Details
35 Years
experience
Emergency
services
Trusted HVAC & Plumbing Services in Dayton, OH
Founded in 1991, A J Mechanical has built a reputation for excellence in HVAC, plumbing, and backflow prevention across Southwest Ohio. Our team combines nearly three decades of experience with cutting-edge technology to deliver cost-effective, reliable solutions for commercial and industrial clients. We prioritize transparency, offering upfront pricing and detailed explanations of all work performed. Servicing Dayton, Cincinnati, Troy, Wilmington, and surrounding areas, we maintain a BBB A+ rating and hold multiple state certifications.Our commitment to quality is reflected in our preventive maintenance programs, 24-hour emergency service, and partnerships with leading equipment manufacturers. We believe in simplifying complex mechanical systems while ensuring long-term performance and customer satisfaction.
Services
Heating
Air Conditioning
Plumbing
Backflow Prevention
Preventative Maintenance
Emergency Repairs
HVAC Installation
Energy Efficiency Solutions
Details
- Year established: 1991
Highlights and features
- 30 years of commercial HVAC experience in Southwest Ohio
- 24-hour emergency service with fast response times
- Certified backflow prevention specialists
- Upfront pricing with no hidden costs
- BBB A+ rated since 1991
Associations and certifications
- BBB A+ Rating
- State of Ohio Lic. #16225
- Certified Backflow Tester
- Boiler Contractor Certificate #C817
Services
Heating Systems
We design, install, and maintain commercial heating systems tailored to building specifications. Our services include energy-efficient furnace and boiler installations, preventive maintenance programs, and emergency repairs. With partnerships with top manufacturers, we ensure optimal performance and cost predictability for property managers across Southwest Ohio.
Air Conditioning
Our AC services cover installation, repair, and maintenance of commercial cooling systems. We specialize in custom-designed units for industrial spaces and server rooms, using energy-efficient equipment. With 24/7 emergency support, we minimize downtime during peak summer months while maintaining system longevity through preventive care programs.
Plumbing Services
We handle all commercial plumbing needs from leak repairs to complete system installations. Our certified technicians provide pipe locating, sewer cleaning, grease trap maintenance, and backflow prevention services. We ensure compliance with local water authority regulations through annual testing and certification of backflow devices.
Backflow Prevention
Our certified specialists install, test, and repair backflow prevention devices to protect potable water systems. We maintain compliance with local regulations through annual certification services and emergency repairs. This critical service prevents contamination from pressure changes in commercial plumbing systems.
Preventative Maintenance
Our maintenance programs extend equipment lifespan while reducing unexpected failures. Covering HVAC, plumbing, and backflow systems, these plans include scheduled inspections, performance optimization, and priority emergency response. Clients benefit from predictable costs and documented system history for commercial properties.
People
Alexander J Kovacs
Founder
Alexander founded A J Mechanical in 1991 after working with a major commercial HVAC company. With over 30 years of industry experience, he transitioned from residential to commercial HVAC contracting after early success with property management clients. He oversees operations at the Dayton facility.
Questions
What services does A J Mechanical offer?
We provide HVAC installation/maintenance, plumbing services, backflow prevention, and 24-hour emergency repairs for commercial and industrial properties.
Do you serve areas outside Dayton?
Yes, we serve all of Southwest Ohio including Cincinnati, Troy, Wilmington, and surrounding communities.
Are your technicians certified?
Our team includes Ohio-licensed HVAC technicians and certified backflow prevention specialists with multiple industry certifications.
What are your emergency service hours?
We offer 24-hour emergency service with rapid response times for urgent HVAC or plumbing issues.
Do you provide maintenance contracts?
Yes, our preventive maintenance programs cover HVAC systems, plumbing, and backflow devices with customized service schedules.
