Sloped or shifting soil can undermine a landscape over time. NBX builds retaining walls that control erosion, create usable level space, and add lasting structure to your Andrews Afb, MD property.
Understanding The Service
Why the unseen parts of a retaining wall matter more than the visible surface
A retaining wall that fails almost always fails for the same reason, water pressure building up behind it with nowhere to go. Many improperly built walls focus entirely on the visible stacked surface while neglecting the drainage system that keeps the structure stable. Our process for every retaining wall project in Andrews Afb, MD begins below ground, with excavation deep enough to establish a compacted base that will not shift or settle under the weight of the wall and the soil behind it.
Once the base is properly compacted, we install a gravel drainage layer and perforated drain pipe behind the wall structure. This allows groundwater to escape rather than accumulating and pushing against the wall face, which is the single most common cause of bulging, leaning, or collapsed retaining walls. For taller walls or walls holding back significant slope, we incorporate geogrid reinforcement that ties the wall back into the soil mass for additional stability.
Material selection depends on both your property's aesthetic and its structural needs. Segmental concrete blocks offer strength and a clean, uniform appearance suited to most residential applications. Natural stone provides a more organic look that blends with established landscaping. Timber walls work well for shorter, budget-conscious applications, though they typically have a shorter lifespan than masonry options.
Every wall is built with a slight backward lean, known as batter, which works with gravity rather than against it to resist the pressure of retained soil. We finish each project with proper backfilling and grading so water sheds away from the wall rather than pooling against it, completing a structure designed to perform for decades rather than years.
Material Options
Choosing the right material for your slope, budget, and style
Strong, uniform, and ideal for most residential walls. Available in a range of colors and textures.
A premium, organic look that blends naturally with established gardens and mature landscaping.
A cost-effective option for shorter walls and garden borders with a warm, natural appearance.
Why It Matters
What a well-engineered wall protects and enables on your property
Holds soil in place on slopes, preventing washout during heavy rain and protecting nearby structures.
Transforms sloped, unusable terrain into flat, functional areas for gardens, patios, or lawn space.
Redirects water away from your home's foundation, reducing the risk of moisture-related damage.
Adds defined, intentional structure to a landscape design rather than leaving it loose and uneven.
Proper drainage and base preparation mean the wall performs reliably for decades, not just seasons.
A well-built retaining wall is viewed as a permanent improvement that adds real resale value.
Customer Feedback
Real feedback from clients who had retaining walls built on their property
Our backyard slope was washing out every time it rained heavily. The wall they built completely solved the erosion problem and gave us a flat area to actually use.
They explained why the drainage behind the wall mattered more than the stone itself, which gave me a lot of confidence in the quality of the work.
The natural stone wall they installed looks like it has always been part of the property. Excellent craftsmanship from start to finish.
We had a previous wall fail after just a few years from a different contractor. This one was built properly the first time and has held up perfectly.
The crew was careful with our landscaping and left the yard clean every day. The final result looks sharp and extremely durable.
Our backyard now has structure, stability, and a much better flow. It feels like we gained usable space we never had before.
Related Services
Many of our retaining wall clients also schedule these services
Common Questions
Answers to what Andrews Afb, MD homeowners ask us most before construction begins
Permit requirements vary by wall height and local regulations. We handle the assessment of your specific project and inform you upfront if any permitting will be required before construction begins.
A properly engineered wall with correct drainage and base preparation can last several decades. Material choice also plays a role, with masonry options generally outlasting timber construction.
Yes, in most cases. We assess root systems and existing landscaping during the design phase to determine the best wall placement that protects what is already established on your property.
Schedule a retaining wall consultation with NBX and give your Andrews Afb, MD property the structure it needs.