Home About Philosophy Awards Contact For over 20 years, MJ Monahan Builders has been building and renovating on the Main Line and Suburban Philadelphia. Founded in 1990 by Mike J. Monahan, project-by-project, MJ Monahan Builders has established themselves as premier builders grounded in integrity, quality and service. MJ Monahan Builders works with projects of all sizes and scope and is equally adept at commercial as with residential. From the Main Line’s most aspirational homes to the area’s historical churches, fine restaurants and exemplary universities, MJ Monahan Builders has made their mark with consistently excellent quality construction. MJ Monahan Builders is thrilled to be awarded the Best of the Main Line again for 2010. This award stands out as a special achievement. It is an expectation that one’s work would be good enough to be recognized by peers, but to get an award from your community and your customers indicating such a high level satisfaction is something to be truly proud of.  873 Lancaster Avenue | Devon, PA 19333  |  p. 610.687.2201 | f. 610.687.2207  |  info@mjmonahanbuilders.com   ©Copyright 2010-2006, MJ Monahan, Inc. All rights reserved.