Paradigm’s committed and passionate leadership is as dynamic as it is detail-oriented – and intimately involved in both our communities and local trade associations.  

Melinda Dicharry

Melinda Dicharry

Founder, CEO & President

Melinda Dicharry founded Paradigm Mechanical Corp. on strong principles, with the goal of setting the standard for the industry. As a proven 17-year construction industry leader, Melinda’s mission is to always exceed customers’ expectations. She builds solid partnerships with clients, engineers, designers, subcontractors, and vendors to deliver a quality product on time — and under the owner’s budget.

Melinda grew up in an entrepreneurial environment. She has incorporated innovative thinking into all of her career positions – gaining a wealth of experience in construction insurance, bonding, finance, consulting, and management. Working in the controller position of a large San Diego HVAC mechanical contractor, she realized an opportunity existed for a company that would use project team experience, technical knowledge, and creativity to address and implement solutions to any challenge a building project might present. This vision and drive is also what sets Melinda’s team of subject-matter experts at Paradigm apart from all the rest.

Melinda is a Certified Construction Industry Financial Professional (CCIFP). She served as President of the San Diego Chapter of National Association of Women in Construction (NAWIC) for two years. Currently, she is the Vice President of the Future Construction Leaders Foundation and serves on the board of the East County Boys and Girls Clubs.


Donna Walton

Donna Walton

Project Manager

Donna Walton has worked in the commercial construction industry for more than 25 years. She brings a wealth of project management and customer service experience to her position with Paradigm and plays a vital role in our retrofit and construction process. From estimate to closeout, Donna fully understands the project management process, and she possesses the unique ability to manage diverse and constantly shifting priorities.

As a project manager, Donna steps up for all responsibilities – from pre-construction and specifications to project planning, coordination, negotiations, leadership, and managing subcontractors, change orders, inspections, and commissioning. Donna always provides timely, accurate, and professional workmanship on all projects. In true Paradigm form, she is the type of project manager who does not hesitate to roll up her sleeves and jump right in to solve problems or overcome challenges.


Terrence Lewis

Terrence Lewis

Service Department Manager

Terrence Lewis has worked in the Commercial HVAC industry for more than 12 years. He has set the standard as a mentor to technicians on safety, proper day-to-day procedures, and customer service. His expertise in equipment ranges from large Chillers to Air Handling Units, Cooling Towers, smaller stand-alone HVAC systems and more.

Terrence works directly with building engineers, owners, and property managers to ensure the right building maintenance is contracted for their equipment. He currently holds a C-20 license, EPA Universal 608, Mitsubishi VRF Certification, and various NATE certificates. If any issues arise with our clients, Terrence is their go-to person to identify and implement a quick and successful resolution. His ultimate goal is to grow our service department and build a strong, extended team that can represent Paradigm all across Southern California.


Barbara Headshot.jpg

Barbara Thompson, CIS

Accounting Manager

Barbara brings over a decade of accounting experience to Paradigm's management team. She has her Bachelor of Science in Accounting from National University, is a certified Construction Industry Specialist, and is currently studying for her CCIFP (Certified Construction Industry Financial Professional) certification. At Paradigm, Barbara oversees all accounting functions, including Accounts Payable, Accounts Receivable, Payroll, Labor Compliance, Insurance, and general office management.

In her spare time, Barbara enjoys reading, spending time with her family, and traveling.