Service Area
Screw Pile Foundations in Chilliwack
Postech Chilliwack is the local authorized Postech dealer, installing helical screw pile foundations in Chilliwack, Sardis, Vedder, Rosedale and Yarrow. A deck in a Sardis backyard, a tiny home on acreage in Rosedale, a shed or carport on a farm property: the foundation goes in within a day, with no concrete to pour or cure.
We are based here, so the crews know the ground, the weather and the way properties are laid out across the city, from town lots to farmland.

Building on Chilliwack ground
Chilliwack sits on the south side of the Fraser River, with the Vedder River and the US border to its south. It is a farming city: about two-thirds of its land is in the Agricultural Land Reserve, and farms, acreages and rural properties sit right alongside the urban neighbourhoods of Chilliwack proper, Sardis, Vedder and Rosedale.
The ground changes from one part of the valley floor to the next. Floodplain areas are often sand and gravel, which holds piles very well. Across the agricultural areas the soil is more often clay and silt. Some low-lying ground has a history of its own: Greendale, at the base of Sumas Mountain, was once part of the bed of Sumas Lake, which was drained in the 1920s to create farmland.
That variety is the reason piles suit this city. Concrete footings are poured on an assumption about what the soil is; a pile is checked as it is installed. Our equipment monitors torque as each pile goes in, so we can confirm it has reached the strength it was chosen for before anything is built on it.
Projects that suit Chilliwack
Before you build in Chilliwack
- Check permit and drawing requirements with the City of Chilliwack before you plan. They depend on the size and type of structure. We can supply engineering documentation when it is required.
- If your property is in the Agricultural Land Reserve, check what the Agricultural Land Commission and the city allow before you plan a new structure.
- Have underground utilities located before any ground work. BC 1 Call is a free service.
- Send us the address, a description of the project and a few photos of the site, and mention any slope, soft ground or tight access.
Our work in Chilliwack
Our Chilliwack hot tub and patio cover project is shown in the gallery, from the first pile alignment to the finished patio. A Chilliwack client told us the crew had their deck foundation installed in under four hours, with no concrete trucks and no mess.
See all Residential project photos →
“The crew had our deck foundation installed in under 4 hours. No concrete trucks, no mess, no waiting. Absolutely the best experience we've had with any contractor.”
Common questions
Which parts of Chilliwack and the area do you serve?
Can you install on a property in the Agricultural Land Reserve?
Will wet Chilliwack weather stop the installation?
Building in Chilliwack?
Tell us about your project and send a few photos of the site. We price it for free, with no obligation, and reply within 24 hours.
Get a free quote


