Guardian Construction

Integrity and Protection for Your Business Throughout Construction

Guardian Construction has nearly 50 years of experience and success throughout the Southwestern Pennsylvania market.

Guardian is a seasoned and qualified general contractor that is dedicated to a personalized approach resulting in absolute client satisfaction.

We’re best known for the way that we do business – and have been since 1973.

Guardian, a Construction Management partner, serves as your primary contact for your project from the start. This type of relationship works to the benefit of the building owner. Having us as your primary contact ensures accountability, maximizes transparency, and guarantees frequent and efficient communication – all in an effort to reduce overall project cost and meet or beat project timelines.

No matter the industry of your project, Guardian, serving as your Construction Manager or General Contractor, our objective remains the same. Our goal is to serve as your advocate and to understand the metrics of success for every aspect of your project. So, whether your project is a refresh of your current space, an expansion, or a complete new build – we have the team and the experience to support your project needs and budget requirements. 

Pillars that guide Guardian’s business include operating with a strong moral compass, protecting our client’s business as if it were our own, and executing each portion of the project with the utmost integrity. These pillars are what sets us apart in the industry. After-all, anyone can build a building – Guardian Construction protects your investment, from site-evaluation and initial drawings to a final punch list and handing over the keys.

We take great pride in a job well done, and as a full-service Construction Management team, we build relationships based on sharing knowledge, open communication and walking through what to expect throughout the process so that our clients can move forward – with confidence – in Guardian’s team, our construction process, our safe work practices, the overall quality of the build, total value of the project and the integrity with which it all gets done.

GCMSI 2020-2021-award-photo

“Our ultimate goal is to have our clients feel as if they’re  part of our family.”

Dennis O’Hara, President


Design Build
General Contractor Tile
Butler Pre Engineered Metal Buildings Tile
Guardian Realty Solutions LLC Tile

Butler Manufacturing enables Guardian to provide its pre-engineered metal building customers with the best solutions at an affordable price.



Guardian Construction Management Services
4530 William Penn Highway #610
Murrysville, PA 15668-2002
Phone: 412-829-0900 ext. 110
Fax: 412-829-0933
Email: dclark@gcmsi.com