JML Engineering is a full service structural engineering firm whose business philosophy is to provide a high quality product that is economical to construct. This is achieved by producing high quality contract documents which clearly indicate the most appropriate structure for the clients proposed use. Many of our clients are contractors and material suppliers who use us to optimize their structure.

The firm’s philosophy is to maintain strong relationships with clients. Communication and prompt responses are of foremost importance to us during both the investigation and construction phases of the projects.

We have worked on many large and small projects, both for the public and private sector. Ninety five percent of our projects are with repeat clients or by recommendations from our clients. Most of our projects have very limited budgets and we have optimized the structures to accommodate the limited budget. On many projects we have redesigned the structures of other structural engineers in order to reduce the construction costs.


The firm’s owner and principal, John M. Looney, P.E., has over 45 years of experience with national and international projects. Prior to establishing the JML Engineering, Mr. Looney was a principal at Aberjona Engineering, Inc. of Winchester, Massachusetts for 32 years. His past and current experience extends through a variety of projects, including low and high rise Residential Buildings, Commercial and Industrial Complexes and Institutional and Educational Buildings constructed of Light Wood and Heavy Timber Framing, Reinforced Masonry and Concrete, Structural Steel and Precast Concrete. JML Engineering also provides independent structural reviews (peer review) of various projects as well as Building Information Modeling (BIM).


We pride ourselves on giving a highly personalized service to every client through all aspects of their project. Each job is led by a principal or associate ensuring close contact with the client. Aberjona gives you the personal attention of a small firm, backed by an extensive knowledge and experience. Our engineering, communication skills and commitment to team work are significant factors in the success of our client's projects.

John M. Looney, PE


We are registered structural engineers in twenty-two states.

Registered Professional Engineer in Massachusetts (24067), Maine, New Hampshire, Rhode Island, Connecticut, New York, New Jersey, Maryland, Pennsylvania, West Virginia, Virginia, Ohio, Indiana, North Carolina, South Carolina, Michigan, Minnesota, Iowa, Alabama, Kansas, Texas and Colorado.




  • Creative Solutions
  • Collaborates with Architects, Owners,
    and Contractors
  • Develop Multiple Options
  • Anticipate Issues
  • Solve Problems



  • Improve Preformance
  • Reliability of Existing Structures
  • Comprehensive Options
  • Affording Ease of Construction