What Landscape Retaining Walls Do for Erosion Control, Drainage, and Outdoor Design

Reinholds, United States – July 8, 2026 / A Plus Landscaping /

A Plus Landscaping Explains How Retaining Wall Installation Supports Erosion Control, Drainage, and Outdoor Design for Central PA Homeowners

REINHOLDS, PA — A significant portion of residential properties across Central Pennsylvania sit on sloped terrain. For homeowners in Lancaster, Harrisburg, Hershey, and surrounding communities, that grade is often the reason a backyard stays unused. Retaining wall installation changes the equation by stabilizing the slope and creating the conditions for the rest of the yard to function.

A Plus Landscaping, a family-owned design-build company based in Reinholds, has been building retaining walls throughout Central PA since 2006. The company works with homeowners to address both the structural and design dimensions of sloped landscapes.

Erosion Control

On unretained slopes, water moves soil downhill. After enough rain cycles or freeze-thaw events, that erosion becomes visible as rutted ground, exposed roots, and lost topsoil. A properly built retaining wall holds the soil in place and stops that process at the source.

“Many homeowners treat a slope as a permanent limitation to their property, but a properly engineered retaining wall completely changes how a yard functions,” said Marcus Waldner, Founder of A Plus Landscaping. “In Central Pennsylvania, our severe freeze-thaw cycles put immense physical pressure on unmanaged soil. We don’t just build walls as standalone fixes; we integrate built-in drainage systems to protect the landscape structure while transforming unusable slopes into flat, functional ground built to last for decades.”

The wall acts as a physical barrier, redistributing the weight of the slope and keeping the soil profile stable across seasons. For Central PA properties, where frost depth and precipitation put pressure on unmanaged grades, that structural function is a critical requirement.

Drainage Management

Retaining walls that lack proper drainage create severe structural vulnerabilities. Water builds up hydrostatic pressure behind the wall face and causes eventual displacement or total structural failure over time. The drainage system behind and beneath the wall units remains as important as the visible hardscape material.

Advanced planning ensures that every retaining wall layout includes native drainage components. This technical process incorporates specialized base materials, clean drainage aggregate behind the wall blocks, and a precise grading plan to direct water completely away from the wall structure and the residential home foundation.

Design and Usable Outdoor Space

Landscape retaining walls create flat ground, providing a structural benefit that an open slope cannot match. Flat ground makes a patio installation possible, gives custom planting beds a stable structural foundation, and establishes clean tiers across the property to serve distinct functional purposes.

In Central PA, where properties feature significant natural elevation changes, retaining wall installation is frequently the primary project that makes subsequent renovations feasible. The design team plans these wall structures as part of an interconnected outdoor environment rather than an isolated fix, ensuring the final hardscape works cleanly alongside custom patios, paver steps, and softscape layouts.

Homeowners interested in retaining wall installation or landscape retaining walls can reach A Plus Landscaping by phone or through the contact form at apluslandscaping.com/contact/.

About A Plus Landscaping

A Plus Landscaping is a family-owned outdoor living design-build company founded in 2006 by Marcus Waldner. The company serves homeowners across Central Pennsylvania, including Lancaster, Harrisburg, Hershey, Mechanicsburg, Middletown, and Reading. Services include retaining wall installation, paver patios, custom pools, outdoor kitchens, decks, and landscaping.