Call us 866-671-8670

With 8 Regional Offices we service the entire South Eastern United States
Regional Offices Located in:
California, Colorado, Texas, Kansas
Tennessee, Virginia Ohio & Pennsylvania
Company Profile
With over 100 years of experience Blackall Mechanical, Inc., is one of the most experienced mechanical contractors in the southwestern United States. Blackall maintains a long tradition of providing quality work and service to its clients. The company operates under the guidance and supervision of the following individuals:
John Blackall, President
Educated in HVAC Commercial Technology, John holds a Class A TACLA license with over 25 years of industrial and commercial experience in HVAC and Control design, with a specialization in new construction and retrofit applications.
Marvin Allison, Operations/Service Manager

Class A TACLA licensee with over 12 years of commercial and large residential experience in HVAC and Plumbing systems. Marvin oversees all operations, service work and PASS (Performance Assurance Support Services) for new construction and retrofit projects.
Bill Seel, Plumbing Division Manager
Master Plumber with over 27 years experience in service and repair. Bill’s extensive knowledge of hot water heaters and boilers allows Blackall to serve as the state’s factory service representative for two national commercial heating manufacturers.
Rodney G. Thornton, Sales/Business Development Manager

With over 30 years experience in the HVAC, automation and engineering industry, Rodney brings a high level of solution based knowledge to our customers. Rodney oversees the sales team in north Texas as well as the team in south Texas while helping in the development of future business opportunities for our company.
Frankie Moeller, HVAC Division Manager
Frankie has 31 years of commercial HVAC experience. Holding key positions as Operations Manager and General Manager for the past eleven years, Frankie has the skill and knowledge of the industry that allows him to manage a team of technicians and overall operations within Blackall Mechanical that will assure our customers the very best in service.
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Mike Hart, South Texas HVAC Supervisor
Michael has over 28 years experience in the HVAC industry and is dedicated to delivering the highest level of integrity and is committed to total customer satisfaction. Michael is extremely attentive to the customer’s needs and understands that air conditioning is critically important to the success of your business. He also understands the importance of Preventative Maintenance to help keep your equipment running efficiently to avoid costly, unexpected repairs, while improving air quality and comfort.
License and Certification
Texas North Class A Combination License – TACLA020715C
Texas North Master Plumbing License – M-17624
Texas South Class A Combination License – TACLA00012604E
Texas SouthMaster Plumbing License -M-17624
Factory Certified Geo Thermal Contractor
EPA Certified
Insurance Coverage
A-1 American insurance LLC Agency
Allstate Insurance
General InsuranceAutomobile Liability
Workers Compensation