How to Remove Dynabolts, with Sydney City Rubbish

Removing dynabolts can be incredibly tough. Often, these heavy duty concrete bolts need to be removed quickly for different types of work to take place. But getting them out without damaging the surrounding area isn’t easy. That’s why it’s essential to know how to remove dynabolts… or simply hire the experts to do it for you.

At Sydney City Rubbish, we have plenty of experience in removing bolts from concrete. We’ve provided these services for large commercial construction projects, as part of makegood services for warehouse renovations, and in many more settings. Our team has the equipment and the experience to get the job done in an efficient fashion.

Click here to get a quote for dynabolt removal in Sydney.

Alternatively, you can find out more about removing concrete bolts in this article. We’ll explain more about the process, the tools and equipment required, and safety considerations. And we’ll also tell you exactly why, at the end of the day, it’s better to hire professionals. Let’s get into it!

What are dynabolts?

Dynabolts, also known as expansion bolts or anchor bolts, are heavy-duty fasteners used to secure objects to concrete or masonry surfaces. They are commonly used in construction to anchor fixtures, machinery, and other heavy items. Dynabolts consist of a steel bolt, an expansion sleeve, and a nut. When the nut is tightened, the sleeve expands and grips the surrounding material, providing a strong and secure hold. 

Thanks to that strength, dynabolts can hold incredible amounts of weight. For example, one dynabolt may be able to hold approximately 1,100kg of weight. This does depend on a number of factors. But the point is, holding up this kind of weight means the bolts are incredibly secure… which makes them much more difficult to remove.

The challenges of removing dynabolts

There are a number of things to consider when planning how to pull out heavy-duty concrete fasteners. Removing dynabolts can be tricky for several reasons:

  • Damage to Surrounding Material: Improper removal can damage the concrete or masonry, leading to costly repairs.
  • Specialised Tools Needed: Effective removal often requires specific tools that may not be readily available to the average DIYer.
  • Labour-Intensive: The process can be physically demanding and time-consuming, especially if there are multiple bolts to remove.
  • Safety Concerns: There is a risk of injury if the removal process is not handled correctly, particularly when dealing with heavy objects anchored by dynabolts.

If you are planning to remove these yourself, take stock of each of these points and ensure you’re well-prepared. Alternatively, hire an experienced demolition and strip-out company to do it for you!

How to remove dynabolts from concrete: a process

There are a number of ways to remove anchor bolts. We won’t get into the detailed, technical aspects here, but instead focus on the different approaches. That is, to try and handle dynabolt removal yourself, or alternatively, hire the experts.


If you decide to remove dynabolts yourself (though please note, we do not recommend doing this unless you are an experienced tradesperson/company), follow these steps:

  • Gather Tools: You’ll need a hammer, chisel, wrench, pliers, and possibly an angle grinder.
  • Expose the Bolt: If the bolt head is recessed, use a chisel and hammer to chip away the surrounding material until you can access the bolt head.
  • Loosen the Bolt: Use a wrench to unscrew the nut from the bolt. If the bolt turns with the nut, use pliers to hold the bolt in place.
  • Remove the Sleeve: Once the nut is off, you may need to use a hammer and chisel to carefully break the sleeve’s grip on the material. Alternatively, you can use an angle grinder to cut the bolt if it won’t come out.
  • Extract the Bolt: Pull the bolt and sleeve out of the hole. This may require some force and patience.

Hire Sydney City Rubbish

For a hassle-free and safe removal process, it’s best to hire professionals like Sydney City Rubbish. Our team has the experience and equipment necessary to remove dynabolts efficiently and without damaging your property. There are a number of reasons as to why hiring a contractor for this kind of work is advised, and we’ll take a closer look at those below.

Why you should choose an experienced demolition company

Hiring demolition professionals is never a bad idea. We’re here to handle all the tough tasks that come with a stripout or makegood project. That of course, includes removing dynabolts! We always pride ourselves on our careful yet effective approach to this kind of work. That means prioritising the following:

  • Health and safety, for our people and yours
  • Using a suite of high-quality tools and equipment
  • A methodical approach that includes planning
  • Thorough cleanup and rubbish removal once finished.

With Sydney City Rubbish, you’re always in good hands.

Book dynabolt removal with Sydney City Rubbish

At Sydney City Rubbish, we offer professional dynabolt removal services for all kinds of businesses, structures, and projects. Our team is equipped with the right tools and expertise to handle any job, big or small. We’re always ready to help in Sydney CBD and surrounding areas.

Click here to get in touch with us today.

FAQs about Dynabolt Removal

What is the Best Tool to Remove Dynabolts?

The best tools for removing dynabolts include a wrench for loosening the bolt, pliers to hold the bolt in place, a hammer and chisel to expose and loosen the sleeve, and an angle grinder for cutting stubborn bolts.

How to Remove Anchor Bolts?

Anchor bolts can be removed using similar methods to dynabolts. First, expose the bolt head, then use a wrench to loosen and remove the nut. If the bolt is stubborn, you may need to use an angle grinder to cut it free.

How Do You Replace Dynabolts?

To replace dynabolts, follow these steps:

  • Remove the old dynabolt: Use the methods described above to safely remove the existing bolt.
  • Prepare the hole: Clean out any debris from the hole and ensure it’s still structurally sound.
  • Install the new dynabolt: Insert the new bolt into the hole, tighten the nut to expand the sleeve, and secure the fixture in place.
  • For a seamless replacement, consider hiring Sydney City Rubbish to handle both the removal and installation of dynabolts.

You might also like...

Scroll to Top