Central Coast · Floor sanding and polishing service
Diagrind Concrete Grinding & Polishing Specialists
Diagrind Concrete Grinding & Polishing Specialists is a floor sanding and polishing service in Calga NSW 2250, listed on NSW Flooring under Polished Concrete and Timber Flooring, with a Google rating of 4.3 from 7 reviews (Google Maps, retrieved 2026-10-22).
4.3 (7 reviews)Diagrind Concrete Grinding & Polishing Specialists details
| Google rating | 4.3 |
|---|---|
| Google reviews | 7 |
| Google Maps category | Floor sanding and polishing service |
| Address | 1 Pacific Hwy, Calga NSW 2250 |
| Suburb and postcode | Calga 2250 |
| Phone | +61 420 851 339 |
| Website | diagrind.com.au |
| Google Maps listing | Open in Google Maps |
| Confirmed services | Polished Concrete, Timber Flooring |
| Review-count rank in Central Coast | 39 of 79 |
| Rating compared with Central Coast median | Below the median of 5.0 |
| Data retrieved | 22 October 2026 |
Services
NSW Flooring lists Diagrind Concrete Grinding & Polishing Specialists under Polished Concrete and Timber Flooring because its name or Google category names those services. This is not a verified list of the work it does. Contact the business to confirm what it carries out.
How Diagrind Concrete Grinding & Polishing Specialists compares
Compared with other listed businesses in Central Coast that have the same confirmed service. Source: Google Maps, retrieved 2026-10-22. Ratings are Google's.
| Service | Businesses in Central Coast | Review-count rank | Reviews compared with median | Rating compared with median |
|---|---|---|---|---|
| Polished Concrete | 4 | 2 of 4 | 7 is above the median of 6 | 4.3 is below the median of 5.0 |
| Timber Flooring | 8 | 4 of 8 | 7 is above the median of 5 | 4.3 is below the median of 5.0 |
Central Coast has 4 listed polished concrete businesses, too few for a percentage comparison. No other listed business is in Calga. The nearest listed business is AUSTRALIAN TRADE FLOORS, 7.8 km away. The nearest railway station is Tascott, about 8.8 km away in a straight line, not a walking distance.
What Diagrind Concrete Grinding & Polishing Specialists says on its own website
Its website mentions epoxy flooring and polished concrete. It mentions 20 years of experience. The site says it is family owned. These are the business's own statements, read from its website on 22 October 2026. NSW Flooring has not verified them. Check the licence yourself with the Service NSW licence check steps before you pay a deposit.
Questions to ask Diagrind Concrete Grinding & Polishing Specialists
Each question links to the guide that explains why it matters.
- Which licence do you hold for this job, and what is its number? How to Check a Flooring Contractor's Licence in NSW
- Can you put the scope, product, preparation, warranty and payment schedule in writing? Getting Flooring Quotes: How to Compare Three Quotes Fairly
- Is this mechanically polished, or ground and sealed? Polished Concrete vs Grind and Seal: Which Finish Do You Need?
- Has the slab been moisture tested before the work? Concrete Slab Moisture Testing Before Flooring: What the Australian Standards Say
- How much wear layer is left, and how many more sands will the boards take? How Often Should You Sand and Polish Timber Floors?
- Is the floor solid or engineered, and does the quote say which? Solid vs Engineered Timber Flooring: Wear Layer, Moisture and Cost
Check before you hire
NSW Flooring has not checked Diagrind Concrete Grinding & Polishing Specialists's licence, insurance or workmanship. Service NSW lets you check a builder or tradesperson licence before work starts. NSW sources say the maximum deposit is 10 percent of the contract price. Services above are confirmed only from the business name and its Google category.
Guides for this job
- Polished Concrete vs Grind and Seal: Which Finish Do You Need?Concrete
- How Often Should You Sand and Polish Timber Floors?Timber
- How to Choose a Flooring Contractor in NSW: A ChecklistHiring and compliance
- How to Check a Flooring Contractor's Licence in NSWHiring and compliance
- How to Read Google Ratings When Choosing a TradieHiring and compliance
Nearest listings in Central Coast
- AUSTRALIAN TRADE FLOORSWest Gosford · 7.8 km · 5.0 from 11 reviews
- MRD Polishing, Premium concrete grinding and polishingPeats Ridge · 8.3 km · 5.0 from 3 reviews
- FloorgardWest Gosford · 8.4 km · 4.6 from 20 reviews
- Rejuvenation SolutionsWest Gosford · 8.5 km · 5.0 from 26 reviews
- FlintexWest Gosford · 8.7 km · 5.0 from 1 reviews
About this listing
Source: Google Maps, retrieved 22 October 2026. Ratings and review counts are Google's and are not verified by NSW Flooring. Read the methodology, or report or claim this listing.