Colorado's high-altitude building experts
We combine rugged mountain engineering with your specific vision to build homes that handle our tough alpine climate and look exactly how you pictured.
Planning your Silverthorne home? We’re booking for the next building season.
Since most builds take four to eight months, starting your planning and permitting now is essential. We know exactly how to build for Colorado's high-altitude environment, ensuring your home is engineered to handle heavy mountain snow and rugged weather.
Building for the Colorado High Country
Modern Comfort with Mountain Character
Our Philosophy
A home should be a direct reflection of the people who live there. At Action Builder LLC, we focus on creating spaces that are as practical as they are beautiful. We specialize in bringing older properties into the modern era, upgrading them for efficiency and style while making sure they keep the unique mountain charm that makes the Colorado Rockies so special.
Built for High-Altitude Living
Alpine Engineering
Building in Silverthorne and across Summit and Grand Counties requires a specialized approach. We design every project to handle heavy snow loads, intense sun, and the massive temperature swings common in the high country. By using radiant floor heating, high-performance windows, and moisture-resistant materials, we make sure your home stays comfortable and durable in the toughest environments.
Direct Oversight for Every Project
Personalized Management
Our owner and lead General Contractor, Ron Walsh, stays involved in the daily work on-site to keep every project moving forward correctly. We take care of the complicated parts of the build, from navigating local permits and code requirements to managing the final walkthrough. We act as your professional partner, providing the technical knowledge and steady communication needed for successful remodels and custom builds.
Build the Mountain Home You’ve Always Wanted
If you want to add more space with a custom addition or modernize your home with a mountain-ready remodel, we have the experience to get it done right. Based in Silverthorne and serving all of Summit and Grand Counties, our team builds for high altitudes, balancing modern comfort with the durability needed for mountain life. We will guide you through every step of the project to make sure your home reflects your style and stands up to the elements.