Right Angle Contracting

Right Angle Contracting is a commercial general contractor located in northern Virginia and serving the metropolitan Washington DC area.

Our Work

In our work, we focus on delivering the highest quality service and workmanship, at all price points. While we have been involved over the past 25+ years in projects up to and beyond a quarter million square feet, the majority of the work that Right Angle is doing for current clients lies within the 5,000 to 15,000 SF range. We work with the full spectrum of commercial real estate professionals, including property owners, property managers, architects, commercial real estate brokers and leasing agents, as well as tenants. We also have a stone division that focuses on stone, brick and paver surfaces, including walkways, driveways, building facades and hardscapes.

Our Philosophy


The key to a successful job, no matter how complex or expensive it is, is the quality of communication between all parties involved, from the very beginning to the very end.

We believe the role of the General Contractor is to serve as the central communications hub, engaging in the process from concept design all the way through punch list to move-in and beyond. Our experience over the past quarter century has been mainly as a Site Superintendent, so our approach on all of our projects is very on-site, very hands-on.



Right Angle Contracting was founded by Andrew Iannizzi, a 23-year veteran in the industry with one of the largest contractors on the east coast. Over the course of his career, Andrew has been involved with hundreds of successful projects ranging in size from 3,500 to over 250,000 square feet, and in value from less than $500,000 to $70,000,000.



"Andrew has been a total star during this entire process. I can never thank you enough for all the extra care and attention you and your company have shown! It's been an absolute pleasure and - again - thank you very much." Trish at CPA

"Andrew is the best superintendent I have had the pleasure of working with. His attention to detail and extensive experience were exactly what was needed to successfully complete this project. We could not have completed this project without his expertise." Kimberly at Northrop Grumman Information Systems

"Andrew was especially critical to this project's success because he was in the trenches day to day. His team went above and beyond to ensure it was done right, the first time. ... The client operates a very busy club, and when it came time to work through changing schedules or events that impacted work, everyone on the team could not have been more accommodating. It redefines the gold standard, and I sincerely appreciate everyone's efforts to complete it on time, and under budget." Kris at Mark G. Anderson Co.