About Joscon

Building and Remodeling has always been a passion for Jonathan O’Sullivan, the founder and President of JOSCON Management, Inc. Jonathan has a lengthy list of experience in multiple facets of the construction industry including a Bachelor’s Degree in Construction Management from Wentworth Institute of Technology.

The experience and skill that Jonathan possesses comes from years of working on Nantucket building multimillion dollar homes, coordinating and developing large scale site and roadwork projects, and being involved in multiple commercial/retail building projects. With years of experience working throughout New England and Southern New Hampshire. Jonathan and JOSCON can provide a wealth of expertise and knowledge to bring your ideas and your project to completion on time and on budget.



Contact JOSCON today for professional and quality service from start to finish.

603.489.1568 [email protected]

Our Mission

To perform the highest level of quality construction services at fair and market competitive prices.

To ensure the longevity of our company through repeat and referral business achieved by customer satisfaction in all areas including timeliness, attention to detail and service-minded attitudes.

To maintain the highest levels of professionalism, integrity, honesty and fairness in our relationships with our suppliers, subcontractors, professional associates and customers.