About Us

Building Trust Through Precision & Engineering Excellence

Connorstone Engineering, Inc.

Civil Engineering • Land Surveying • Septic & Site Planning Practical solutions. Experienced professionals. Local knowledge. Since 1972, Connorstone Engineering has provided civil engineering and land surveying services throughout MetroWest and Central Massachusetts. From residential additions and septic-system design to commercial development, land planning, permitting and complex site engineering, our team helps clients move projects from concept through approval and construction. Serving homeowners, builders, developers, attorneys, municipalities and other professionals from our Northborough office.

Our Professional Qualifications

Our staff includes Professional Engineers, Professional Land Surveyors, an Engineer-in-Training and a Massachusetts attorney, providing broad technical, regulatory and land-use experience for projects of varying scope and complexity.

Our History

Connorstone’s history began in 1972, when George Connors started the business in the basement of his parents’ home. In 1976, he opened the firm’s first office in Ashland, Massachusetts.
In 1995, Michael J. Sullivan, a Registered Sanitarian and George Connors, Civil Engineer and a Massachusetts Attorney, opened Sullivan, Connors & Associates, Inc. Together, they built the firm’s reputation for practical Civil Engineering, Land Surveying, Septic Designs and Land-Use consulting throughout MetroWest and Central Massachusetts.

Following Michael Sullivan’s retirement, the practice remains as Connorstone Engineering, Inc., carrying forward the experience, local knowledge and professional relationships developed over more than 50 years.

Our Mission

To provide accurate, efficient, and innovative engineering and surveying solutions that support sustainable development, infrastructure growth, and successful project outcomes.

Our Vision

Good engineering should make a difficult project easier.

At Connorstone Engineering, our goal is to provide practical, straightforward solutions that help our clients understand their property, navigate the permitting process and move their projects forward.

For more than 50 years, we have built our practice around experience, responsiveness and an understanding of the local communities in which we work. We believe the best results come from combining sound engineering and surveying with clear communication, realistic advice and attention to both time and cost.

Whether the project is a residential septic repair, a property-line question, a building addition, a subdivision or a complex commercial development, our approach is the same: understand the problem, find the most practical path forward and get the job done right.

Why Choose Connorstone Engineering

  • Experienced and licensed engineering professionals
  • Accurate surveying and planning solutions
  • Advanced technology and modern equipment
  • Commitment to quality and precision
  • Reliable project coordination and support
  • Timely delivery and client-focused service
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