Retaining walls are a functional part of landscape construction used primarily to manage elevation changes and improve the usability of outdoor areas. They often add beauty and visual interest to landscapes while holding back soil and preventing erosion. This is especially important for sloped areas. By securing and stabilizing the ground, retaining walls allow landscape contractors to create level areas for hardscapes like walkways and patios, or to build up or level areas to create landscape or garden beds that would otherwise be unusable spaces. Another important reason to construct a retaining wall is to help control water flow and protect foundations or nearby structures from shifting ground.
In Northeastern Wisconsin, the best materials to use for retaining walls are manufactured block, dimensional limestone and boulders of different sizes. (Timber retaining walls are lower cost but wood eventually rots or deteriorates making the retaining wall less stable). Landscape professionals do not recommend constructing a retaining wall with wood.
Manufactured block is engineered specifically for retaining soil. The blocks interlock and are stacked with a slight setback, which helps resist soil pressure. The material is strong and stable for walls up to several feet tall, available in many textures and colors and are designed to handle freeze-thaw climate conditions. When installed by an experienced landscape professional, along with a proper gravel base and drainage system, these walls can remain stable for decades making the material ideal for Northeastern Wisconsin conditions.
Natural stone retaining walls are ideal in the upper midwest because they perform extremely well in cold climates. When installed correctly by an experienced landscaper, their durability is outstanding.
Boulder retaining walls are also considered one of the most reliable materials to use for retaining walls because the stones can move slightly without fail during freeze-thaw conditions. They perform well when a sloping landscape needs stabilization, for use on lakeshores or even in wooded areas. Besides being ideal for constructing retaining walls, stones add natural beauty to any property becoming the focal point.
Choosing the material to build the retaining wall is important, but the most crucial part of constructing a new retaining wall is choosing the right landscape contractor. A poorly built retaining wall can have dire consequences. Choose an experienced landscape company that specializes in hardscapes. A company that specializes in grass installation, may not be the best choice to construct a retaining wall. Not all landscapers take the proper steps when constructing retaining walls. Ask about excavation below frost depth, do they use a gravel base, how do they treat drainage? Good drainage is key because when water gets trapped in the retaining wall and freezes, it can create pressure that may shift or crack retaining walls over time. Depending on the project, does the company use reinforcement such as geogrid for taller retaining walls? Quality of construction is key for success.
Ask your professional landscape company what certifications they have to ensure the project will be done at the highest construction level. Are they a Unilock authorized contractor? This certification means you would be working with an elite landscape company with an experienced group of hardscape contractors who possess the skill and expertise needed to transform your space into a highly functional retaining wall that will have the durability to last for decades. All Unilock authorized contractors have a workmanship guarantee, offer proof of insurance and many customer references.
Springview Landscape Service is a professional landscape company based in Green Bay, Wisconsin, and a Unilock authorized contractor. Proudly serving Northeastern Wisconsin since 1996, we specialize in custom landscaping, hardscaping, and landscape maintenance designed to enhance the beauty, functionality, and value of your outdoor space.