Hardscape & Landscape Contractor in Chilliwack

Chilliwack: Alluvium, Prairie, and Promontory Slopes

Chilliwack is the eastern edge of the Fraser Valley and, geologically, one of the most interesting cities we work in. The bulk of Chilliwack sits on Fraser River alluvium, which is silty, fertile soil that grows the berries and vegetables the region is known for but has a high water table and compresses under load. The newer neighborhoods of Promontory climb the north facing slope of Little Mountain, introducing steep terrain and glacial till subsoil. And the flood plain communities of Yarrow, Rosedale, and Greendale have their own drainage and flood consideration rules. A hardscape installer who does not understand the difference between Promontory and Sardis will make expensive mistakes.

Sardis is the most residential part of Chilliwack by volume, and most of our Chilliwack patios and driveways are built here. The soil is silty loam over Fraser alluvium, which is decent for paver installations but compressible if the base is too shallow. We install 8 inch compacted bases on residential patios in Sardis, not the 4 inch minimum some contractors use, because settlement in alluvium is a real long term problem. Garrison Crossing has similar soil conditions but stricter architectural controls, and we work within those from the start.

Promontory is Chilliwack's hillside neighborhood and the closest analog in Chilliwack to Mission's upland terrain. Lots drop 3 to 5 metres from front to back in many cases, and the subsoil is glacial till with occasional rock. We build tiered retaining wall systems here, usually two or three walls of moderate height, with integrated drainage and geogrid reinforcement where the height and surcharge require it. Promontory views are spectacular but they come with slope engineering costs that need to be in the quote from day one.

Yarrow, Rosedale, Greendale, and Fairfield Island are all flood plain communities. Hardscape here is entirely possible but needs to be designed with the understanding that periodic flooding is part of the environment. We avoid nonpermeable paver joint sands in flood prone yards, keep finished grades elevated where possible, and use flexible base systems that can tolerate minor movement. Chilliwack also has a very active agricultural community, and we regularly build on hobby farms and acreages where load requirements (tractors, trailers, livestock access) shape the design.

Trueform Works Across All of Chilliwack