Concrete floor preparation is easier to price and programme when the contractor can see what sits on the slab, how the space operates and what finish comes next.
A useful enquiry does not need to diagnose the floor. It should give enough information for the contractor to identify what needs an inspection, what assumptions sit behind the quote and which parts of the work need to be confirmed on site.
Begin with the finish that comes next
Preparation is not a standalone visual choice. It creates the substrate for another system, such as:
- epoxy or another resin coating
- mechanically polished concrete
- grind and seal
- tile, vinyl, carpet or hybrid flooring
- a repair or maintenance treatment
Tell the contractor what is planned, even if the final product has not been selected. Different finishes can require different treatment of existing coatings, adhesives, joints, edges and surface irregularities.
If another contractor will install the final finish, share that installer’s substrate requirements before the preparation quote is finalised.
Record what is on the floor now
Existing materials affect the preparation method, labour and waste.
Photograph and describe:
- tiles, vinyl, carpet, timber or other coverings
- tile glue, carpet glue or vinyl adhesive
- paint, sealer, resin or another coating
- oil, grease or other visible contamination
- high spots, uneven areas or damaged patches
- cracks, joints and broken edges
- fixed equipment, racking and areas that cannot be cleared
Where the history is uncertain, say so. An honest unknown gives the contractor a reason to inspect or include an allowance. A confident but incorrect description can produce a quote that no longer fits once the floor is exposed.
Separate removal, preparation and repair
These activities are related, but they are not interchangeable.
Removal deals with the existing covering, coating or adhesive.
Preparation creates the condition required for the next finish. Total Grind N Polish’s published services include prep grinding and high-pressure water blasting, with the suitable approach depending on the surface and the work that follows.
Repair addresses cracks, joints, damaged edges, uneven sections or other defects identified before or during preparation. Total Grind N Polish also lists floor levelling, joint cutting and joint sealing among its additional services.
Ask for all three parts to be stated separately in the quote. This makes provisional allowances visible and helps the project team see which work is included, excluded or subject to inspection.
Ask how the slab condition will be checked
The contractor may need to inspect the slab or recommend testing before the final system is confirmed.
Questions to include in the scope discussion are:
- What visible conditions could change the proposed preparation method?
- Is moisture, adhesion or another test recommended for this finish?
- How will cracks, joints and previous repairs be assessed?
- What happens if concealed adhesive, contamination or weak material is found?
- Which assumptions are included in the price, and which findings would be treated as a variation?
The answer may differ between a new slab, an occupied warehouse, a retail tenancy and a floor with several earlier coatings. The value of the questions is that the assumptions are discussed before mobilisation.
Include dust, noise and access controls in the programme
Preparation work can affect nearby people and operations. Concrete grinding can generate respirable crystalline silica. Safe Work Australia identifies concrete as a common silica-containing material and says workplace hazards must be identified, assessed and controlled.
The project team and contractor should therefore discuss:
- separation of the work area from workers, visitors and customers
- dust-control measures for the proposed equipment and task
- access routes for machinery and waste removal
- noise limits and permitted working hours
- ventilation and adjacent occupied areas
- how the site will be left between stages
- responsibility for workplace-specific risk controls and documentation
This article cannot determine the controls for a particular site. Those controls belong in the project’s own safety planning and the contractor’s task-specific method.
Plan for edges, details and fixed objects
Open floor area is only part of the job. The scope should also show how preparation will deal with:
- walls, columns and doorways
- floor wastes and penetrations
- stairs, ramps and changes in level
- equipment plinths and bases
- joints through the work area
- areas under or around fixed equipment
Plans and marked-up photographs can make these details clearer. If an area will remain inaccessible, identify it before the quote is accepted.
Make waste and handover requirements visible
Removing coatings, adhesives and damaged material produces waste. Ask who is responsible for collection, containment and disposal, and whether any material needs separate handling because its composition is unknown.
For handover, agree on what the next contractor or project manager needs to receive. This may include the confirmed area, work completed, remaining defects, test results where testing was commissioned, product information for repair materials and photographs of concealed work.
Clear handover information is especially useful when one team prepares the floor and another installs the final system.
A practical floor-preparation enquiry checklist
Before requesting a quote, collect:
- site address and contact person
- approximate area and floor plan
- intended final finish
- current covering, coating or adhesive
- clear photographs of the whole area and damaged sections
- known moisture, leak or previous-failure history
- access, parking and loading information
- operating hours and shutdown limits
- target dates and other trades in the area
- any substrate requirements supplied by the finish installer
This information does not replace an inspection. It helps the contractor identify what needs to be confirmed and gives the project team a clearer scope to compare.
Discuss the substrate before the finish
Total Grind N Polish provides concrete preparation and related flooring services across the Gold Coast, Brisbane and Northern New South Wales.
Contact Total Grind N Polish with photographs, approximate area, the current floor condition and the finish planned for the space.
