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Demolition and Land Clearing Service.

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  • Sewerage Capping
  • Land Clearing
  • Steel Processing
  • Scrap Metal Demolition
  • Concrete Crushing & Recycling
  • Demolition Security

“My experience with Ensa Hafriyat has been brilliant. They are extremely professional to work with, and my job is done without any concerns.”

Jonathan Baron


Demolition Methods and Process for Building Structures


Demolition means destruction, removal or breaking down of a structure by using pre-planned methods. The process of demolition involves five steps- surveying, removal of hazardous elements, preparation of plan and safety measures, to ensure a smooth and safe demolition process.

  1. Surveying- This involves the study of different areas of the construction and things surrounding the site. The two main types of surveys done are building surveying and structural surveying. Building surveying involves the inspection of construction material used, usage of the building, presence of hazardous materials, material made from toxic chemicals, flammable, explosive or radioactive materials, etc. The condition of drainage is also inspected in building surveying. Structural surveying involves the study of the method of construction of the building, condition of the basement or underground vaults and the condition of the building.
  2. Removal of hazardous materials- Hazardous materials like asbestos minerals, petroleum and radioactive metals are removed y specialized personals prior to the demolition.
  3. Preparation of demolition plan for structures- A detailed plan involving information about the location of the building, structural support systems of the building, a procedure for the demolition of the building, a plan for all the precautionary measure that should be taken, methods for handling the demolished building, and the time required is made.
  4. Safety measures are taken- Everyone on site during the demolition process such as the workers, engineers, site supervisors are briefed about the possible hazards in the site during the process of demolition. All flammable and hazardous materials are removed from the site and are taken care of. Suitable measure are taken to overcome the problems of dust, chemical exposure, heat stress, noise exposure, occupational diseases and sanitation facilities of workers. Have an a local electrician check that the power has been disconnected and made safe.




Demolition methods for buildings and other structures are of two main types, non-explosive demolition and explosive demolition.

  1. Non- explosive demolition method is the demolition of the structure which is done using different equipment, other than explosives. Some of the form of non-explosive demolition method are-
  • Sledge hammers- Typically used for demolition of a single wall or column.
  • Excavators and bulldozers- These are used for demolishing small buildings.
  • Wrecking balls—higher buildings which cannot be demolished by bulldozers are demolished using wrecking balls. A crane with a wrecking ball attached to it is pulled and released onto the building leaving that part of the building demolished.
  • High reach excavators are used for tall buildings which cannot be demolished using explosives.
  1. Explosive demolition methods include demolition of buildings using explosives. This explosion is mainly concentrated on structural support of the building such as the pillars or columns. The two types of explosive demolition methods are-
  • Falling like a tree– In this method, the building is made to fall side-wards, if there is enough free space available.
  • Falling into its own footprint- When there is no free space around the building, the explosives are set in the middle part of the building, causing the building to falls in the place it is standing.
  • Asbestos removal is an important consideration when surveying a building prior to any work. Experienced building experts should be used to provide a report before any work is started. Companies like Roofers Brisbane are skilled and capable of this work.
  • Pressure Cleaning and dust suppression to avoid contamination and damage to surrounding buildings, vehicles and structures. A survey of the local area should be undertaken to clean and remove any debris from the demolition.

What is Controlled Demolition?


Controlled demolition is a technique that includes bringing down buildings and structures in a sheltered, guided way with a specific end goal to accomplish the best timely outcomes. This kind of demolition is vital in light of the fact that safety is fundamental and as you can envision, destroying a building isn’t so easy and can be extremely risky.

Demolition is significantly more entangled than simply thumping a building down, in light of the fact that it should be done in stages, for greatest control and stability. Most structures can’t be brought down in one day, so when things are being destroyed, a building must be brought down in sections to guarantee that the remaining parts are as stable as could be expected under the circumstances.


Controlled demolition does not include the use of explosive demolitions, or non-explosive demolition techniques such as bulldozers or wrecking balls as these are much less efficient and unsafe procedures. The mess, dust and noise pollution from these methods are much lesser in the method of controlled demolition. The idea of controlled demolition has gained a lot of popularity among the masses of the construction industry due to this reason.

Different techniques of controlled demolition are-

  • Brokk Robotic demolition- This a technique that can be utilized off site with the use of a remote control. This hand held remote empowers the machine to do the dangerous work for us, so our engineers and workers on the site can avoid the falling rocks, concrete and general trash. Brokk Robotic demolition is precise, quick, efficient and can be moved into difficult to achieve regions – they can even climb up the storeys of the structures through the stairs! Brokk Robotic demolition is additionally environment-friendly in light of the fact that it gives off very little noise pollution and helps in diminishing the negative effect on the neighborhood laborers and natural life.
  • Diamond drilling- this method utilizes a rotating drill fixed diamond drill bit to make perfectly measured holes. Why utilize a diamond drill bit? Diamond is the hardest naturally forming material, which is the reason it’s a typical strategy utilized in this industry since it can drill through strong, resilient materials including concrete, glass and metal.
  • Hydraulic concrete bursting and crunching- the ‘bursting’ strategy is utilized to demolish huge concrete structures in a snappy and safe way. This works by putting hydraulic bursting heads into drilled holes, which at that point makes splitting forces up to a maximum of 500 tons with a specific end goal to split the material. When this is finished, the concrete at that point will be crunched. This strategy is also efficient and reduces wastage as the uncontaminated concrete left from this procedure is reused.
  • Dust contamination from asbestos or lead paint particles in old buildings is a risk to nearby personnel. Ensure correct breathing face masks are use when close to the site.



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