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Years Of Experience
Virginia Class A Heavy Highway Contractor Since 1989.
Specializing in underground utilities and stormwater management, we combine proven site development expertise with innovative site development. Our commitment is to deliver practical, effective solutions with honesty and efficiency, from project inception to completion.
Years Of Experience
Completed Projects
Many site development companies promise they can do it all, but when it comes to site prep work, we do it right the first time and complete your project quickly and on budget, keeping you informed throughout the process. We are experts in niche site work services like underground utilities such as sewer and water, as well as stormwater management.
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Fill out the contact form with your information and project details.
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We will meet to review the site and discuss your needs and budget
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Relax knowing all work will be done on time, on budget and right the first time.
DeMarr's company culture is based upon the principles that founder Bob DeMarr instilled in us of complete commitment to accuracy and building a reputation for excellence by doing exceptional work.
Our Heavy Highway Class A contractor license allows us to do work in house rather than hiring expensive subcontractors.
Our work is all completed by our experienced in house team, which includes engineers who oversee the work
As an established 34 year business our wealth of experience allows us to be efficient and complete your project more quickly than competitors
Underground utilities are essential elements of your building project. Installation involves careful planning and execution.
Sewer Installation & Inspection
New Water Line Installations
Water Line Cap-Off or Demolition
Seamless coordination and execution of repair and/or installation of new water and sewer lines.
Our stormwater management services help you effectively control and redirect water away from structures and even capture it for other purposes.
Planter Box Installation
Bioretention Raingarden
Gravel Infiltration Trench
From design to implementation, we have a solution for your site.
Get your site project-ready for your new site development or development project with our site work preparation services.
House Tear Down & Demolition
House Excavation & Dirt Removal
Dumpster Rentals
Let us help you prepare for the next phase of your project.
DeMarr Construction has a great team. They really are experts in excavation, demolition, underground systems, and all sorts of site work.
Bob, Brendon, and Elaine DeMarr and Carolyn were all extremely helpful from start to finish. This team was very responsive to my requests and helped me solve various problems during the course of constructing my custom home. This property is the second house for which I contracted DeMarr Construction to perform the site work, water line, and underground system installations.
From the demolition of the old property to finishing the final grading for the new house, DeMarr Construction did a great job and went out of their way to help me tackle and resolve the many issues that surround the grading ofa. hung sewer.
I greatly appreciate the DeMarr Construction team's effort in helping me through my entire process, and I highly recommend the DeMarr Construction team for all your sitework needs!
When our friend recommended your firm to make the sewer connection from our house to the Fairfax County sewer, we had no idea how wonderful his recommendation would turn out to be.
Your performance far exceeded our expectations. I was particularly thankful for the timely coaching and guidance you and Elaine provided throughout the entire project. Also, the crew that worked here was great. They were always industrious while here, advised us what was going to happen, and kept us informed of the progress. Everything was neat and clean when they left.
We would recommend your firm to anyone without reservation.
Then it's time to take the first step. Our team is ready to discuss the work needed for your project and offer our expert services to get you started!
Your Site Development Experts for Arlington County, Fairfax County, City of Alexandria, City of Falls Church, Town of Vienna, and surrounding Northern Virginia localities.
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We are very pleased with the expertise and hard work of DeMarr Construction to install and connect our exterior water line from a private well to the Fairfax Water main.
L.J.Brendan explained the process and provided a detailed drawing of the impacted area and tasks to complete the work. He coordinated with our community association and Fairfax county permitting. The installation crew completed the job on time, filled the trench, and covered the area with grass seed and hay.
We especially appreciate the clear communications throughout the process and highly recommend DeMarr plumbing.