Comparing Resin Injection and Concrete Underpinning

Comparing Resin Injection and Concrete Underpinning

January 23, 2017

If you’ve been following along on the VIC Underpinners blog, you’ve probably become familiar with the purpose of underpinning and the warning signs. For visitors who are newer, welcome! A brief refresher: Underpinning is a great way to reinforce the foundation of your home or business. Sometimes it’s obvious that it’s necessary, but other times the need sneaks up on you. It’s not something that you can ignore. After all, if the foundation of your home or business isn’t properly constructed, the rest of the structure quickly follows suit.

So what are the signs that you’re looking for? Keep an eye on floors that begin to sink or slope. Look out for cracks in any of your walls, especially if they’re nearby doorways or windows. All of these side effects occur when the soil underneath the property is either end of the spectrum—too wet, or too dry. There’s not a lot of control that we have over Mother Nature, but VIC Underpinners is a great partner in crime when it comes to reinforcement.

There are a couple of different methods that are discussed when underpinning comes up in conversation. Today we’re discussing the differences, and which makes the most sense for you. Per the title of this post, they are concrete underpinning and resin injection. We’re proponents of both, let’s discuss the details.

First up- concrete underpinning. Concrete underpinning is traditional; it’s been around for a while. It’s actually been around more than 100 years. Those who created it did so with the aim of pushing the foundation as deeply into the earth as possible, so that it reached soil that is much stronger. How does one achieve this? By digging deep holes into the earth and pouring concrete into these holes- hence the name of the process. The result is a foundation that is twice as strong. There are a few benefits here. It’s proven, and it works really well on smaller properties. On the other hand, it can be slow and does mean that excavation is necessary. Excavation can become messy quite quickly.

On the other hand, we have resin injection. Resin injection has not been around quite as long as concrete underpinning. Even though it’s history is not as storied, it has still been proven as a great way to reinforce your foundation. It’s accomplished by injecting resin into the foundation, using very small holes. This resin expands like a gel, as it flows through the foundation. This puts pressure on the ground, and condenses the surrounding soil. It’s basically filling any apparent air pockets. Resin injection does not require excavation, so the process is more clean. It’s also much quicker and can be finished in just a few days.

Not quite sure which makes the most sense for you and your property? Feel free to reach out to VIC Underpinners, any time. We’d love to hear from you and help you make the decision that makes the most sense.