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Mortar Net Solutions™, formerly Mortar Net® USA, Ltd. develops, distributes and supports innovative moisture management solutions for masonry construction.

The company was founded in 1992 by Tom Sourlis and Colin Munro.  Sourlis has over 25 years of experience as a mason with extensive architectural training from the Illinois Institute of Technology and Munro is a masonry industry expert with over 45 years of experience, including research, teaching, technical consultation, manufacturing, marketing, and contracting.  He has guest lectured at several universities.  He is a member of AIA, CSI, and The Masonry Society of which he was a past chairman of Committee C-15: Manufactured Masonry Units and is an honorary member of the Bricklayers & Allied Craftsmen International Union.  He recently became a Fellow of ASTM and received their Award of Merit.

Sourlis knew how expensive it is to tear apart a wall, clear the cavity and rebuild it. As a response to seeing what water damage can do to a building, Sourlis invented MortarNet and patented its ability to collect mortar on multiple levels.  He took the concept to Munro to get his opinion. Munro’s reaction was, “Finally! A real, workable solution to a very destructive problem.”  This endorsement by an expert known as widely as Munro helped to propel the company and its innovative solution from idea to industry-leading product.

In addition to the patented mortar collection device, MortarNet®, Mortar Net has developed new proprietary solutions for masonry construction that include TotalFlash®, BlockFlash®, BlockNet®, HouseNet®, WallNet™, WeepVent™, CellVent™, LathNet™, DriPlane™, WallNet-F™, and WallNet+™.  Mortar Net Solutions is also one of five partner companies which are developing and marketing the CavityComplete line of wall systems.  The company constantly seeks to identify opportunities to add to its product offering by creating new solutions that enhance the durability and beauty of masonry construction.

From its founding the company has made a strong commitment to environmental responsibility.  Recycled materials make up a large proportion of Mortar Net Solutions’ products.  Low VOC compounds are identified and promoted for use with the company’s products.  Sustainability is an important outcome of using solutions developed by Mortar Net Solutions that extend the useful life of masonry structures by reducing susceptibility to moisture damage and insect infestation.

From its days as a fledgling startup the company has grown to include well-qualified and experienced executive, marketing and technical team members who have developed and brought to market a series of innovative solutions that continue to aid masons and architects in their commitment to the creation of beautiful and durable structures.



  • The purpose of Mortar Net Solutions is to improve lives by supplying moisture management solutions to building professionals that enhance the performance of and increase the longevity of masonry structures.


  • Mortar Net Solutions brings satisfaction and security to designers, specifiers, building owners, and tradesmen by delivering cost effective, high performance moisture management products and services that contribute to the construction of long lasting, trouble free masonry structures.


  • We believe in consistently conducting ourselves to earn trust and respect.
  • We believe that to sustain our commitment to deliver high performance, cost effective moisture management solutions in a competitive environment we must constantly innovate and continuously improve.
  • We believe that to achieve long run success we must conduct our business at the highest ethical and legal standards.
  • We believe that building important relationships into partnerships with key sales channel members, suppliers, and compatible industry members is important to creating sustainable success.
  • We believe success is achieved through the constructive collaboration and dedication of all Mortar Net Solutions employees motivated by an inspiring and rewarding environment.
  • We believe our success creates the responsibility and provides the resources to support the building professional and social communities in which we work and live.

Meet The Team

Tom Sourlis

Chairman and Founder – Sourlis led the operations of Mortar Net Solutions™ from its founding until 2011 and today serves as its chairman.  Prior to Mortar Net Solutions, Sourlis had founded Sourlis Masonry Restoration and worked for nearly 25 years repairing buildings that, in large part, had been damaged by trapped water in masonry walls.  He attended Illinois Institute of Technology for four years as an architecture student.

Sourlis has worked on such notable historic buildings as The Rookery, The John J. Glessner House, Holy Family Church, and the Chicago Water Tower.

On October 21, 2010, Sourlis was honored with the Innovation Fellow Award by the Society of Innovators in Indiana.

gary johnson Gary Johnson

219-850-4502  |  gjohnson@mortarnet.com

President – Gary brings over 30 years of executive leadership experience, mostly related to electronics technology, to Mortar Net Solutions. He joined Mortar Net as a director in 2004 and became president in 2011. Under his guidance the Mortar Net team members have dedicated themselves to the mission of bringing satisfaction and security to designers, specifiers and tradesmen by delivering cost effective, high performance moisture management solutions that contribute to the construction of long lasting, trouble free masonry structures. He has contributed to Mortar Net’s long-established record of innovation by adding four United States patents related to products for managing moisture in masonry structures. Gary is a voting member of ASTM Committee E06 on the Performance of Buildings, an associate member of RCI, an international association of building envelope consultants, and a director of the Building Envelope Moisture Management Institute (BEMMI). Mortar Net is continuing its record of industry support through its sponsorship of the Mason Contractors Association of America and membership in the Design-Build Institute of America (DBIA), the Sealant, Waterproofing and Restoration Institute (SWRI), RCI, Inc., as well as multiple local masonry institutes.

He earned a bachelor’s degree in Electrical Engineering (BSEE) and a master’s degree in Industrial Administration (MSIA), both from Purdue University. As a result of his earlier work in electronics technology, Gary was recognized as a Fellow by the Institute of Electrical and Electronic Engineers. He was inducted into the Northwest Indiana Society of Innovators. He is active in the community as a director of the Crisis Center and the Northwest Indiana Society of Innovators, both in Gary, Indiana.

He and his wife Brenda enjoy outdoor activities, especially hiking and kayaking, and cooking for themselves and friends. Gary is a too infrequent golfer.


kelly-cleveringa Kelly Cleveringa

219-850-4505  |  kcleveringa@mortarnet.com

Customer Service Manager – Kelly manages our distributor network, customer service, quotations, and incoming purchase order processing.  Kelly co-manages the day-to-day operations of our corporate office, maintains product inventory levels, and administers the health insurance plans. Kelly has been with Mortar Net Solutions since April, 1995.



bill-lewis Bill Lewis

219-850-4503  |  blewis@mortarnet.com

Controller – Bill is responsible for accounting operations, including working capital management, payables, receivables, budgeting, and financial reporting.   He coordinates the annual review with Mortar Net Solutions independent auditors.  Additionally, he manages the company’s traffic sources, negotiating freight rates and service level to achieve the highest value.

Bill joined Mortar Net Solutions in November of 2004.  He has bachelor’s degree in Criminology with a minor in Business from Florida State University.  He continued his education at DePaul University in Chicago where he worked on an accounting degree.

Steven Fechino

219-850-4514  |  sfechino@mortarnet.com

Engineering Manager – Steven is responsible for providing engineering support services and product training for the full family of Mortar Net Solutions products.  He provides the pre-engineering flashing take offs, flashing system solutions for contractors and distributor training.  Steven joined the company in August, 2010.

Prior to joining Mortar Net Solutions Steven worked for the engineering firm Wiss, Janney, Elstner Associates performing facade evaluations and repair concept details.  He also worked for WASCO, Inc. as a Project Manager, completing jobs in masonry restoration, terra cotta repair, precast erection, granite and marble installations, and site masonry projects.

Steven has a bachelor of science degree in Civil Engineering Technology and two associate degrees in Civil Engineering and Drafting and Design Specializing in Building Construction.

angela-brooks Angela Brooks

219-850-4512  |  abrooks@mortarnet.com

Business Development Associate – Angela supports the marketing of Mortar Net Solutions’ product line by ensuring the timely delivery of samples and product information to the construction community, distributors, and sales team; managing the company’s contact relationship manager database; and assisting with day-to-day sales and customer service tasks.

Angela graduated from Indiana University NW with a Bachelor’s degree in Business Administration.  She has prior sales and customer service experience in the retail environment.  Angela has been with Mortar Net Solutions since March of 2006.

greg-skyta Gregory Skyta

219-850-4516  |  gskyta@mortarnet.com

Marketing Communications Manager – Greg assists the company field sales team by managing leads and following active construction projects from the initial specification stage to closing sales, and develops and maintains the company website.  Greg has been with Mortar Net Solutions since February of 2011.

Greg graduated from Daytona Beach Community College in 2007.  He completed his Associates of Arts degree during his junior and senior year of high school which allowed him to transfer directly to the University of Florida as a junior.   Greg spent 3 years in the Warrington College of Business Administration program at the University of Florida where he graduated in April of 2010 with a Bachelors of Science Degree in Business Management.

nichole-bishop Nichole Bishop

219-850-4518  |  nbishop@mortarnet.com

Accounting Administrator – Nichole handles Accounts Payable, Accounts Receivable, Work Orders and Receipt of Goods. She works with the warehouse to ensure all orders are shipped out in a timely manner. She is the back-up for customer service and works closely with the Controller on Budgeting, Costing and Inventory Management.

After working in the dental field for 10 years, Nichole spent the following 10 years working in accounting in the manufacturing and construction industries. Nichole joined the Mortar Net team in March 2015. She is a graduate of Ball State University with a Bachelor of Science Degree in Accounting.

Michael Stallworth

219-850-4509  |  mstallworth@mortarnet.com

Marketing Assistant – Michael works with both the Marketing Department and Construction Services.  He helps create marketing collateral and advertising pieces, and he helps manage the company’s contact database.  He is responsible for sending out product samples to architects, contractors and others, and helps with tradeshow management.   He is set to graduate from the AASCB accredited  Purdue University Calumet in December, 2015, with a Bachelor of Arts in Business.  Michael started with the company in July, 2015.”