Wall replacement

When foundation walls fail structurally, they must be replaced. Our team will diagnose and provide the proper replacement method and procedure. Abalon can replace all types of foundations: concrete, earth formed, block, brick, preserved wood foundation (PWF) and insulated concrete form (ICF) walls. In this project a water main broke and damaged the foundation. Our work is guaranteed.

Step 1

Here we have a PWF wall that has failed.

Step 2

The PWF wall has bowed in and broken due to soil pressures.

Step 3

This block / concrete wall combination has fallen and is collapsing.

Step 4

The home owner installed this wood wedge as an emergency measure.

Step 5

It is typical for older homes to have a dug out that later is used as livable space. Usually the results are not good because the exterior walls are not below the frost line.

Step 6

The first thing we need to do is to provide temporary shoring to keep the work area safe.

Step 7

Shoring must be used to prevent further damage.

Step 8

In this project there is a gas line, water line and electrical panel that will add to the wall replacement challenge.

Step 9

Elevations are taken to map out where everything is at the start of the project.

Step 10

Excavation begins on the exterior of wall to be replaced.

Step 11

During the winter electric spades are used to pierce the top layers of soil.

Step 12

The failure is evident.

Step 13

In this picture we can see the horizontal separation that has taken place.

Step 14

In the case of this PWF wall, shoring is used to allow for the wall to be pushed back.

Step 15

The wall is now properly anchored to the ceiling joist.

Step 16

The steel angle iron will aid in providing lateral support for this PWF wall.

Step 17

Once the shoring is in place, the wall is removed. We have excavated only to a certain depth to ease the removal.

Step 18

Care must be taken to remove and replace in sections to maintain stability.

Step 19

The excavation is shored. The breaking is very labour intensive.

Step 20

Soil is excavated to the new footing level.

Step 21

Abalon recycles all of its rubble.

Step 22

Slowly the walls are removed.

Step 23

All these shores are crucial in a well orchestrated replacement.

Step 24

The new footings can be formed. Reinforcing steel is installed.

Step 25

You can see that we only removed about half of the 60 lineal feet wall for phase 1.

Step 26

Vibrator ready, forms ready, start your concrete.

Step 27

Concrete is placed into the footings. A key way is left in the center of the footing to provide lateral support for the bottom of the new wall.

Step 28

Footings are stripped and walls can be formed.

Step 29

Reinforcing steel is installed vertically and horizontally.

Step 30

Walls are braced.

Step 31

Rim joist is removed to allow for concrete wall pour.

Step 32

Wall is poured and is stripped in a couple of days.

Step 33

This pour turned out nice again.

Step 34

This wall is ready to be patched and waterproofed.

Step 35

In this case a new PWF wall is built and installed.

Step 36

Here was can see that a small strip of the basement concrete floor was cut and removed to allow for the new footings to be installed.

Step 37

A sump will be used to drain the new weeping tile system.

Step 38

This sump will discharge to the exterior.

Step 39

Here we can see the weeping tile coming under the footing from the exterior.

Step 40

Once the wall snap ties are patched, the wall gets waterproofed. Weeping tile is installed and covered with washed rock.

Step 41

Here is the exterior weeping tile connection.

Step 42

The rim joist can now be restored.

Step 43

Wall is backfilled.

Step 44

Stucco is restored. Project complete.

Call us for an estimate today!

403.230.3050 - Calgary

1.877.441.3050
Toll free outside Calgary