From pre-construction to excavating to property management, RA Nelson is a full-service general contractor. We engage the best people, processes and technology from the first conceptual designs to long after the project is finished. We keep relationships with our clients for life.


Providing the highest quality service possible to our clients has been our focus since day one. We are tremendously loyal and dedicated to our customers, our community, and the structures that we build. Because of this we are able to deliver the highest QUALITY, ON BUDGET, AND ON SCHEDULE.

Sustainable Practices

As a mountain based contractor and a company filled with avid outdoorsmen and outdoorswomen, protecting the environment is a top priority and passion of ours. With thirteen LEED® AP/GA on staff and 21 LEED® standard projects, our team can provide you with site-specific alternative building practices and greener solutions. Our team excels at creating sustainable and cost-effective recommendations for increased resource and energy efficiencies, better indoor air quality, stronger building envelopes, and more streamlined mechanical

Upper Basin Excavating

Upper Basin Excavating (UBE) is a division of RA Nelson, providing comprehensive earthwork services for projects of all sizes including residential, recreational, and commercial. The UBE office is located at the RA Nelson headquarters in Avon. In addition to the Vail Valley, UBE performs work in Aspen/The Roaring Fork Valley, Summit County, Steamboat and Telluride.

Contact the RA Nelson office at 970-949-5152 for inquiries.


Our Preconstruction Team is the most accurate and thorough in the mountain region, utilizing innovative tools and technology to provide our clients with detailed estimates, accurate quantity take-offs, constructability analysis, and construction scheduling. Our preconstruction tools and software include the Autodesk Suite of Navisworks 3D Modeling Software, Build, Revit, Takeoff, Building Connected and ProEst. In addition, we use Roctek Cut & Fill Software, SolidBuilder Framing Pro, Powerproject Scheduling, Matterport, Hilti Total Station and CMiC. We are accurate and transparent with our estimates - allowing you to make informed decisions early on and throughout the entire project.


    In the initial phase of design and construction of your project, RA Nelson will complete a thorough site analysis and will provide early pricing models to ensure the feasibility of achieving your budget and expectations.


    With an understanding of the overall project objectives, we will start to build a detailed estimate, introduce sustainable and innovative elements, and help the team develop a sequencing plan for design, procurement, and construction.


    By using 3D Building Information Models, acquiring accurate digital take-offs, and engaging subcontractors for feedback, our team of professionals will analyze your home or project for constructability and building efficiencies, system requirements, and continue to refine the estimate and schedule.


    Finalizing the estimate, confirming quantities, calculating cash flow requirements, recommending subcontractors, securing approvals, and ensuring the design and budget expectations are aligned. We provide you with all the information you need to make informed decisions.


    The team will be fully integrated and engaged as we move into the construction phase of your home or project. Our Superintendents, Project Managers, and Preconstruction department work together as a unified front to ensure an efficient and clear path of communication. Qualified Subcontractors will be chosen, contracts will be written, and construction will start.


At RA Nelson, we take on projects that inspire and challenge us. We hire staff who are experienced and take pride in their work. Our construction management and general contracting teams are masters at building, coordination, implementation, communication, problem solving, and delivering the highest quality product and customer service. With almost 50 years of building experience in our communities, we have a reputation for consistently delivering projects on-time and on-budget.


    Collaboration is the key to a successful project, which is why we work closely with Owners, Architects, Designers, Engineers, Consultants, Subcontractors and Vendors. A team approach ensures that everyone is working together to deliver the best possible results through an enjoyable process.


    RA Nelson actively manages your construction budget and controls cost with real-time budgetary tools, monthly cost-to-complete analyses, and a comprehensive understanding of the design.


    The construction schedule for your project is our path to success. RA Nelson creates a detailed and accurate schedule of the entire construction process, which is continuously reviewed and updated on a weekly basis. You and the entire team will always have a perspective of where we are, where we are going, and how we are going to get there.


    Great homes and projects require the highest level of quality at every phase of construction. Initiated in preconstruction with an in-depth analysis of the plans to identify constructability issues and resolve potential conflicts, we thoroughly review the specs and manufacturer requirements for each assembly. During construction, we utilize a sophisticated mobile reporting system to record field observations and provide photo documentation of the entire project.


    Safety is our number one priority. We have a comprehensive safety program and a dedicated Safety Manager to ensure everyone goes home safely at the end of the day. With each project that RA Nelson builds, we create a job-specific Safety & Health Management Program that outlines project specific safe work practices, subcontractor requirements, project hazard communication, emergency and evacuation procedures and more.


    We strive to meet your goals and exceed your expectations. With RA Nelson, you have a team of people who are dedicated to you and your project. We will go the extra mile to ensure our client’s satisfaction.


PHQ provides our clients PEACE OF MIND when it comes to looking after their mountain home. We verify the proper operation of your home’s systems and ensure that the high quality of finishes in your home are cared for and preserved.