Civil Contractor · Norwest, Sydney NSW
Diona
Diona is listed on Google under “Civil engineering company” in Norwest, Sydney. It ranks 57th of 69 civil contractors in Sydney by rating floor (floor 3.22).
How it compares in Sydney
- Its 3.8 is 0.9 below the median of 4.7 for civil contractors in Sydney.
- It has more reviews than 28 of the other 68 listed (41%).
- 12 of the other 68 have a lower rating.
- It is closed on Saturday; 29 of the 56 others with hours on file open then.
Opening hours
| Monday | 8 am to 5 pm |
|---|---|
| Tuesday | 8 am to 5 pm |
| Wednesday | 8 am to 5 pm |
| Thursday | 8 am to 5 pm |
| Friday | 8 am to 5 pm |
| Saturday | Closed |
| Sunday | Closed |
Open 5 days and about 45 hours a week.
Details
- Listed on Google as
- Civil engineering company
- Suburb
- Norwest, Sydney NSW
- Phone
- (02) 8808 5150
- Website
- diona.com.au
- Google rating
- 3.8 from 8 reviews (October 2026)
- Rating floor
- Floor 3.22 · what this means
Ranked near Diona
All 69 civil contractors in Sydney
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Ratings and review counts are Google's, as listed in October 2026. Phone numbers, websites and opening hours are the ones each business lists. Nothing here is paid for or verified by Calso. How the ranking works.