Retaining Walls
Seattle's hills create beautiful views - and challenging yards. Retaining walls hold back soil, prevent erosion, and create usable flat space on sloped properties.
Services
- Structural retaining walls
- Yard leveling
- Erosion control
- Seawall & bulkhead repair
Walls over 4 feet typically require permits and may need engineering. We work with structural requirements and coordinate with engineers when needed.
What customers say about our retaining walls
7 of our 103+ five-star reviews mention retaining walls.
"Portal replaced our crumbling retaining wall. They handled the permits, kept us informed every step of the way, and the wall looks incredible."
"Chris and his team were brought on as a sub contractor for my basement finishing project. The scope of work was a basement entry way with concrete stairs, retaining wall on two sides, and sump pump. The job included digging through very difficult earth by hand. The result was an incredibly well done entry way to my newly finished basement. Great people, price, and workmanship."
"We were very impressed with Chris and his team. The cost to have an old driveway demolished and a new concrete driveway, retaining wall, and steps added was quite reasonable. They did a beautiful job! The front of the house has never looked better. Done on time with no unexpected expense."
Backed by a 1-year workmanship warranty
Portal warrants its workmanship for 1 year from substantial completion. Normal concrete cracking, misuse, and site conditions are excluded. Read the full terms.
Retaining Walls Gallery
