Grunley offers our clients the assurance of successful projects measured in terms of quality, timeliness, and value.



How a project starts lays the foundation for how it finishes. This is the overarching principle that guides Grunley’s preconstruction services. Our Preconstruction Department consists of individuals with extensive experience in both design and construction, working in concert with the customers, designers and engineering professionals. We offer a variety of preconstruction services ranging from scope development, virtual design coordination, and BIM modeling to conceptual estimating, value engineering and site logistics planning. Grunley strives to balance the demands of scope, budget and schedule to make each job a true success.

General Contracting

Grunley was founded as a general contracting firm more than six decades ago. We have an outstanding team of construction professionals committed to delivering our projects on time, within budget and in accordance with the owner's requirements. Our staff has decades of experience on new and renovated/modernized commercial, institutional and government facilities including some of the most complex construction projects in the Washington metropolitan region.


Grunley has become an expert in building successful projects using the design-build delivery method. We are committed to a highly collaborative approach that fully engages our client and A/E designer as the project moves from programming through to the completion of construction. Our design-build teams are organized to allow for maximum flexibility yet retain single point responsibilities to ensure smooth project execution. Our depth of knowledge and experience, especially in assessing existing building conditions, is most significant when the design-build process is applied to a renovation or historic restoration project. Furthermore, our experience in building strong relations with building owners, design professionals and subcontractors allows us to create superior teams, fully capable of implementing the most complex project.

Construction Management at Risk

Over the past 15 years, Grunley has performed construction management at risk (CMc) services on various projects totalling more than $1.1 billion and 6.7 million gross square feet. The types of buildings for which we have performed CMc services includes office buildings, data centers, university residence halls, primary education schools, luxury apartment buildings, condominiums, performing arts centers and churches. The CMc delivery system allows us to collaborate with the owner and the design team from the earliest stages of a project. At the outset, we can help analyze the facility's program from a construction perspective, define the scope of work to meet the owner's needs and budget constraints, and establish realistic schedule and performance milestones.


Grunley has been involved with U.S. Green Building Council and execution of Leadership in Energy and Environmental Design (LEED™) projects since the earliest days of the program. We have completed LEED projects that have received Silver, Gold and Platinum certifications. Furthermore, Grunley has more than 20 construction professionals, at every level of the company, who are LEED Accredited Professionals.

Self-Performed Work

Grunley has close to 130 highly skilled foremen and tradesmen — carpenters, masons, and laborers who self-perform key elements of our work, including selective demolition, salvage, concrete, masonry, protection, rough and finished carpentry, millwork, doors, frames and hardware, and wood and steel windows. They are available 24 hours a day, seven days a week, 365 days a year to best serve the needs of our clients.