Frequently Asked Questions
Can you fix a yard with chronic drainage or erosion issues in Okanogan?
Absolutely. Our most common projects in Okanogan involve solving drainage and soil instability. We start with a site assessment to identify the problem's source, then use professional earthmoving and regrading to create proper water flow away from your home and structures. We often combine this with retaining walls, French drains, and strategic landscaping to create a stable, long-lasting solution that protects your property's foundation and usability.
My rock garden or slope is shifting. What's the best way to stabilize it?
Shifting rocks and slopes are a key local issue we address. A properly engineered retaining wall is often the most effective permanent fix. We design and construct durable walls using materials that complement your property's aesthetic. Beyond just holding back the earth, we integrate the solution with your overall landscape design, ensuring proper drainage behind the wall and selecting appropriate, low-maintenance plants for the area to prevent future erosion.
Do you handle both the hardscaping and planting for a complete backyard project?
Yes, we are a true turnkey provider. From the initial design and construction of patios, walkways, and decks to the final stages of irrigation installation, lawn care, and shrub or tree planting, our single team manages it all. This ensures seamless coordination, consistent quality, and a landscape that is both beautiful and built to last in our Okanogan climate. We can even design and build outdoor structures like pergolas to complete your space.
Business Offerings
- Shrub pruning or trimming
- Disease management - shrubs
- New structure construction
- Design services
- Interior wall construction
- Construction or installation
- Greenscape design
Business Overview
Granite Mountain GS is a full-service contractor and landscaping company serving Okanogan and the surrounding North Central Washington area. We specialize in solving the region's unique property challenges, from persistent yard drainage problems to shifting rock gardens and erosion control. Our integrated approach combines earthmoving, regrading, and expert landscape design to create permanent, functional solutions. Whether you need a new retaining wall, a redesigned irrigation system, or a complete outdoor living space, our team handles everything from initial consultation and design to construction and ongoing maintenance. We help Okanogan homeowners build resilient, beautiful properties that stand up to the local environment.







