Caulking and Sealing

What is Caulking?

Caulking is the application of a filler and/or sealant, to gaps, seams, joints or crack between stationary building components and materials; used for repairs and/or new construction to keep water and outside air away from the interior of a structure.  This process is used to seal joints in structures as well as fill cracks in seams. It can be used in roofs, wall vents, window and door frames, tubs and sinks and is an effective way to reduce noise, provide insulation, contributes towards energy efficiency and with its cosmetic properties, can improve the appearance of many aspects of the building process.

Caulking and sealing contribute the lowest percentage of the overall cost of a project, and while it’s often the least thought about, it has the potential to become a major problem if leaks develop.

How is caulk applied?

Caulk is applied via a caulking gun.  Caulk is normally distributed in disposable cartridges which are rigid cylindrical plastic or carboard tubes with an applicator tip at one end and a movable plunger at the other end.  The disposable cartridge, used in a caulking gun, has a trigger connected to a rod which pushes the plunger with a ratchet that prevents backlash; the push rod can also be triggered by compressed air or a motor.

How to use a caulk gun?

Complex sealing jobs are best left to the professionals to ensure quality, thoroughness and an aesthetically pleasing finish. Simple, at home, sealing jobs can be completed by oneself with practice. The following outlines the main step to using a caulk gun:

  • Load the caulk tube into the gun and cut a portion of the spout at the tip;
  • Hold the caulk gun with two hands (one on the trigger and the other at the end of the tube) at a 45-degree angle to the crack;
  • Press the trigger to push the caulk into the nozzle as you move the caulk gun across the area to be sealed.

What is the difference between caulk and silicone?

While caulk and silicone are both useful seal materials, silicone can be used for many more applications.  Caulk is used for the sealing of joints and silicone is used as a sealant, adhesive and lubricant, etc.  


    Did you know that currently joint sealing repairs are unregulated in WA? How do you know who to trust? Read more...

    What can caulking prevent?

    The installation of a flexible seal can help prevent the risk of any contaminants, such as:

    Water Seepage

    It creates a seal that prevents water from seeping into cracks and crevices.

    High Energy Costs

    It prevents drafts and hot or cold air loss to the outside.


    Caulking of fire-rated partitions after penetration by pipes, electrical conduits, cables and other utilities ensuring the fire rating is not compromised.



    Drawing on our experience and industry best practice, the BUSS team have been servicing clients in the commercial, industrial, residential, mining and resources market for more than 20 years.  Our specialist remedial team have been applying their expertise in completing condition assessments, creating action plans to remediate issues, developing repair methodologies, providing product recommendations and undertaking repairs via trusted techniques to eradicate underlying problems and renew assets to their desired state.

    Our proven track record in effective remedial solutions and quality workmanship, supported by our affiliation with leading industry organisations – Australian Institute of Waterproofing, the Australasian Concrete Repair Association and the Strata Community Association, along with our Cert III accredited applicators, offer our clients peace of mind for all their remedial needs.  Our association with these leading organisations allows us the advantage of being one of the most qualified, trusted and reputable remedial contractors in WA.

    BUSS is your ‘go to’ contractor for your sealing and caulking services in Perth and the metro area, as well as Regional WA.  For more information, please feel free to contact us below, or call us on 08 9444 1732.

    Cracking Concrete

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    Our joint sealing services