A retaining wall does the hard work of holding a slope, but a well-built one also creates usable, level space where there was none. Blue Tree designs and builds engineered retaining walls that handle the load, drain properly, and look like they belong. For 43 years, our ICPI-certified crews have tamed slopes across Southeastern Pennsylvania.
A retaining wall holds back tons of soil and water, and a wall that fails is dangerous, not just unsightly. Blue Tree builds walls the right way: a proper base, engineered backfill, drainage behind the wall, and geogrid reinforcement where the height and load require it. Walls are also designed, used to create level patios, terraced gardens, and seat walls rather than just stacking block. Blue Tree builds with Belgard and Techo-Bloc wall systems and natural stone, handles permits and engineering in-house, and has built across Montgomery, Bucks, Chester, Delaware, Lehigh, Berks, and Philadelphia Counties since 1983.
Written by Chad Ochnich, Blue Tree's co-owner and ICPI-certified hardscape lead, and reviewed by sales manager Jérôme Besnard.
Paver Patios. Level patio space created by the wall. Explore paver patios.
Steps and Walkways. Connect the terraces a wall creates. Explore walkways.
Planting and Drainage. Plant the terraces and manage water from the same plan. Explore landscaping.
Retaining wall cost depends heavily on height, length, materials, and whether engineering and reinforcement are required. As a rough guide, walls from Blue Tree often run from about $40 to $100 or more per square face foot installed, as of 2026, with taller engineered walls and natural stone at the upper end. Every project starts with a free consultation and an itemized proposal.
Taller walls usually do. Many townships require a permit and engineered drawings for walls over a certain height, often around 4 feet, and walls holding a significant load or supporting a structure have stricter requirements. Blue Tree handles permitting and engineering in-house and builds to those specifications.
Almost always water and a weak base. Without drainage behind the wall, water pressure builds and pushes the wall out, and without geogrid reinforcement a taller wall cannot hold the load. Blue Tree builds in drainage, engineered backfill, and reinforcement sized to the wall, which is the difference between a wall that lasts and one that bulges.
Blue Tree builds with engineered segmental wall systems from Belgard and Techo-Bloc, which are designed for retaining loads, as well as natural fieldstone and boulders for a more organic look. The right choice depends on the height, the load, and the look you want, and your designer will match it to the project.
Yes, and that is often the best reason to build one. A wall or a series of terraced walls can turn an unusable slope into level space for a patio, lawn, pool, or garden. Blue Tree designs walls to create that usable space, not just to hold a bank, so the wall earns its cost twice.
Blue Tree designs and builds retaining walls across Montgomery, Bucks, Chester, Delaware, Lehigh, Berks, and Philadelphia Counties in Southeastern Pennsylvania, and has handled local soil, water, and engineering requirements since 1983.
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