What you need
- One bag of cold mix asphalt (7 Gauge for most holes)
- Stiff broom
- Square-mouth shovel
- Hand tamper or a vehicle wheel
- Work gloves
The 15-minute method
- Sweep the hole completely clean.
- Square the edges with the shovel.
- Pour the cold mix in, overfilling slightly.
- Tamp from the edges inward, or drive over with the car twice.
- Sweep loose fines off the surface.
How much you need
A 20 kg bag of cold mix covers approximately 0.2 m² at 50 mm depth. For most domestic potholes one bag is enough. Larger or deeper holes may take two or three bags.
Cost
Materials only — a bag of cold mix costs $25–$45 at most stockists. Compare to $400+ for a contractor call-out on a single hole.
When DIY is not enough
- Multiple connected potholes covering a large area
- Visible base movement or rutting around the defect
- Pothole reopens after every fill — base failure
Frequently asked questions
Do I need any training to use cold mix?
No. The product is supplied ready to use with simple instructions on every bag.
Will the patch hold up to truck traffic?
Yes — cold mix is used on highways. Use a coarser grade like 10 Gauge for heavy axle loads.
Can I do this in winter?
Yes. Cold mix is rated for ambient application down to −26 °C.
