1. Inspect
Assess slab hardness, damage, contaminants, previous coatings, access and the required finish.
Mechanically refined concrete floors
Concrete Grinding Auckland
Mechanical concrete preparation, coating removal, surface refinement, grind-and-seal and polished-concrete assessment for Auckland commercial, industrial and residential floors.
✓ Auckland-wide
✓ Site assessment
✓ Professional preparation
✓ Written scope
QUICK ANSWER
What is concrete grinding used for?
Concrete grinding mechanically removes weak surface material, compatible coatings, adhesive residue and imperfections, or progressively refines a suitable slab for sealing or polishing. The required tooling and surface profile depend on the existing concrete and the flooring or coating system planned next.
Service areaAuckland homes, commercial properties and suitable industrial sites.
Assessment firstExisting floor or substrate condition is checked before the final scope is confirmed.
Written scopePreparation, inclusions, selected system and known limitations are documented in the quote.
Service information reviewed 15 July 2026. Final suitability, programme and price are confirmed for the individual site.
See concrete preparation in action
Concrete grinding and epoxy coating by FlooringPro
Watch the specialist equipment, mechanical preparation and epoxy coating work used on a real FlooringPro concrete-floor project.
Site-specific service
A polished finish built through the concrete itself
Mechanically polished concrete is created by progressively grinding and refining the slab with diamond tooling, then densifying and polishing it to the agreed exposure and sheen. It is different from a clear topical coating. We assess slab condition, aggregate, repairs, moisture, edges and intended traffic before confirming what finish is achievable.
- Homes, retail and commercial interiors
- Warehouses, workshops and showrooms
- Matte, satin and higher-sheen finish options
- New slabs and suitable existing concrete
Our process
Assess first. Prepare carefully. Finish professionally.
2. Grind
Use staged diamond tooling to flatten and expose the concrete to the agreed level.
3. Densify
Apply a compatible densifier and continue honing to refine and strengthen the surface.
4. Polish & protect
Polish to the selected sheen, detail edges and apply the specified guard before handover.
CHOOSE THE RIGHT CONCRETE PATHWAY
Grinding should be matched to the final floor system
Concrete grinding is preparation, not a single finish. FlooringPro assesses the slab and intended use before confirming whether the floor needs coating preparation, grind and seal, mechanical polishing or repair before another system is installed.
Coating preparation
Mechanical grinding can remove laitance, weak surface material, old paint and compatible coating residue while creating a suitable profile for the specified epoxy, polyurethane or resin system.
Adhesive and surface removal
Old flooring can leave adhesive, levelling compounds and local contamination. Removal requirements are assessed against the condition of the slab and the flooring system planned next.
Grind and seal
The surface is ground to the agreed exposure, then protected with a compatible topical sealer or clear-coat system. This differs from mechanically polished concrete.
Mechanical polishing
Diamond tooling progressively refines suitable concrete before densifying and polishing it to the agreed sheen. Not every old or damaged slab can achieve the same aggregate exposure or appearance.
ASSESS BEFORE GRINDING
What determines the concrete-grinding scope?
The written scope is based on what is on and inside the slab, the final floor system and how the space will be used.
- Slab hardness, laitance and aggregate exposure
- Existing paint, epoxy, adhesive or levelling compound
- Cracks, pinholes, spalling and damaged edges
- Moisture or contamination concerns
- Access around walls, columns, machinery and detailed edges
- Expected foot, vehicle, chemical or commercial traffic
- Required coating profile, sheen or sealed appearance
Deep cracks, structural movement, moisture and contamination may require separate investigation or remediation. Grinding alone cannot correct every slab defect.
VERIFIED AUCKLAND PROJECT PROOF
Concrete preparation connected to real operating requirements
These FlooringPro projects show why the required finish, site programme and slab condition must be understood before grinding begins.
Bridgestone Tyre Centre, Ōtāhuhu
Concrete grinding and MapeFloor System 34 coating work was planned around an Auckland Anniversary long-weekend shutdown. Pinholes found after the first coat were filled and sanded before the final coating.
View Bridgestone case study →
Industrial warehouse, Wiri
Grinding removed paint spills and prepared a damaged warehouse slab. Cracks were repaired before an epoxy system was installed to improve presentation and support leasing.
View warehouse case study →
Burswood Events Centre
Multiple grinding passes improved a stained event-space slab before sealing and clear coating for a durable, maintainable high-traffic finish.
View event-centre case study →BEFORE, DURING AND FINISHED
Concrete grinding and coating project gallery
Real project images show the existing condition, mechanical preparation and completed floor systems.
Commercial planning and disruption control
Concrete machinery, extraction, noise, access and programme must be discussed before work. Workshops, warehouses, retail spaces and event venues may require staged work, restricted hours or coordination with other trades.
The assessment should identify movable equipment, fixed machinery, edge access, power, waste handling, curing or coating times and the point at which the floor can return to service. A fast programme must still allow the selected repair, primer, coating or sealer to be installed under suitable conditions.
Honest dust, finish and repair expectations
Professional extraction reduces airborne dust during the main grinding operation, but no process should be presented as completely dust-free. Edges, detailed areas, old coatings and floor condition affect the controls required.
Grinding can reveal aggregate, historic repairs, discolouration and inconsistencies in an existing slab. FlooringPro confirms the intended finish and known limitations in writing rather than promising that every slab will become visually identical.
SPECIALIST PREPARATION, SUPPORTED SYSTEMS
One team from slab preparation to the selected finish
FlooringPro’s advantage is connecting concrete preparation to the flooring or coating installed next. The grinding method, repairs and surface profile are selected with the intended Mapei, Sika or other supported system in mind, subject to product requirements and site conditions.
Questions answered
Concrete Grinding & Polishing Auckland FAQs
Is polished concrete the same as grind and seal?
No. Mechanical polishing refines the concrete through progressively finer diamond stages. Grind and seal uses a topical sealer over prepared concrete, creating a different appearance and maintenance profile.
Can every old concrete floor be polished?
Not always. Deep contamination, extensive repairs, weak concrete or some previous coatings can limit the result. A site inspection helps establish the achievable exposure and finish.
Is polished concrete slippery?
Slip performance depends on finish, contamination and whether the floor is wet. We discuss the area use and select an appropriate specification; spills still need prompt cleaning.
How long does the work take?
Timing depends on floor area, slab condition, edge work, required aggregate exposure and polishing stages. Your written quote will set out access and curing requirements.
What can concrete grinding remove?
Depending on the slab and material, grinding may remove laitance, compatible paint or coating residue, adhesive, levelling compound and local surface imperfections. A site test may be required.
Is concrete grinding completely dust-free?
No. Professional extraction reduces dust during main grinding, but edges, detailed work, old coatings and floor condition affect the controls required.
Do cracks need repair before coating?
Cracks, pinholes, spalling and damaged edges are assessed before the final coating or sealing scope is confirmed. Structural movement or moisture may require separate investigation.
Can grinding prepare a floor for epoxy?
Yes, where appropriate. The required surface profile depends on the epoxy or resin system, slab condition and product specification.
Request a site assessment
Send your Auckland suburb, approximate area, timing and photos for a site-specific quote.
Request a written quote
Tell us about your concrete grinding & polishing project
Share the site details and FlooringPro will follow up. Prefer to talk? Call 0800 452 102.
- Auckland-wide — one team for measure, supply and installation
- Free, no-obligation written quote
- Clear scope and honest advice before any work starts
What happens next
- Send your project details
- We assess the site and confirm scope
- You receive a clear written quote