Welding in Harrisburg








  • Shop Fabrication
  • Civil & Concrete
  • Quality Control
  • Project Management
  • Drafting & Design
  • Process Piping
  • Mechanical Installation
  • Steel Erection
  • Tanks & Vessels
  • Machinery & Equipment

meet ALL OF YOUR project milestones

  • Structural Steel
  • U & R Stamp Code Work
  • Millwright Services
  • Emergency Shutdowns
  • Preventative Maintenance


We are "NB" certified for repairs and altercations of boilers and pressure vessels.

SAFETY certified

H3O is a certified member contractor for ISNetworld, PICS auditing, and BROWZ.

our services


H3O is ASME authorized to apply the "NB" mark on boilers and pressure vessels.


Our people share the same common goals in being the most skilled, professional, trustworthy industrial contractor in the industry. We pledge to continue to earn the business of our clients.



"Building Industry and Relationships Through Our Commitment to Excellence"

Since 2008. H3O Inc. has had the privilege in partnering with many different clients on various projects. Throughout this time, we continue to pursue each and every project with the priority of Safety, Quality, Efficiency and Transparency always with the goal of keeping your project on time and on budget.

Because H3O Inc. understands the various needs from different Industries, H3O Inc. has built a team that is well diverse in skills and capabilities. Because of our talented team, H3O Inc. will be diligent in making sure each and every project is a successful project and not a costly one.

Finish on time, safely and under budget

launch with the right plan in place



We will continue to achieve the ability and the professionalism to deliver today while continuously evolving to improve ourselves for tomorrow.

We will always remain dedicated to the growth and the success of H3O and will do our part to achieve the best results for our customers, coworkers and the community.

We mean what we say and we say what we mean. We will continue to establish and keep relationships of trust, honesty and sincerity with all of our customers and fellow employees.

We treat our employees, customers and community with professionalism, dignity and respect, creating an environment where people can contribute, innovate and excel.