How Much Does It Cost to Clear a Blocked Stormwater Drain?

Have you ever experienced a blocked stormwater drain and wondered, How much will this set me back?

It’s a scenario many Australians dread: water pooling in your yard, a lingering foul odour, or even water damage threatening your property. The frustration builds as you face not only the inconvenience but also the uncertainty of costs.

Whether the blockage is due to tree roots, debris, or collapsed pipes, it’s essential to address the problem promptly.

In this comprehensive guide, we’ll break down and explore clearing blocked stormwater drain costs, and share actionable tips to prevent future blockages.

Factors That Impact the Cost of Clearing a Blocked Stormwater Drain

Here are the factors that impact the clearing a blocked stormwater drain cost:

1. Type of Blockage

• Tree Roots: Stormwater pipes are often infiltrated by tree roots seeking water sources. Removing roots might require high-pressure water jets, costing $385–$600 on average.
• Foreign Objects: Items like plastic, toys, or garden debris can block drains, requiring snaking or manual removal, typically costing $100–$350.
• Grease or Fat Accumulation: Kitchen runoff can lead to hardened grease blockages, especially if connected to stormwater pipes. Hydro-jetting is usually the best solution.
• Collapsed or Damaged Pipes: This is a more serious issue, requiring pipe replacement or relining, which can cost anywhere from $1,000 to $20,000.

2. Methods of Clearing

• Plunger and Manual Tools: Ideal for minor blockages, costing very little if attempted DIY.
• CCTV Inspections: Prices vary, providing a detailed view of the blockage.
• Mechanical Snakes: These cost $90–$200 approximately to hire or $100–$350+ for professional use.
• Hydro-Jetting: High-pressure water jets cost between $300 and $600, suitable for stubborn blockages.

3. Location of the Blockage

• Blockages closer to the surface are generally cheaper to clear.
• Deeper or hard-to-reach drains may incur higher labour costs, especially if excavation is necessary.

4. Emergency Services

• Emergency plumber call-out fees range from $100–$200, with additional charges for after-hours services.

5. State or Region

• Costs vary across Australian states. For instance, clearing blocked drains in Sydney or Melbourne might cost more than in smaller towns due to higher demand and labour costs.

Methods for Clearing Blocked Drains

Here are the methods of clearing blocked drains

1. DIY Drain Clearing

DIY methods can be effective for minor blockages, saving you money. Here are some simple techniques:

• Boiling Water and Baking Soda: Pouring a mixture of hot water and baking soda can dissolve minor grease blockages.
• Plunger: A good-quality plunger costs approximately $20–$50 and works well for surface-level blocks.
• Drain Auger: Small manual augers cost $30–$100 approximately and can be effective for light obstructions.

Limitations: While DIY can save costs, it’s not suitable for severe or recurring blockages. Misusing tools might worsen the problem.

2. Professional Services

For stubborn or complex blockages, hiring a plumber is often the best option. Here are the common professional methods:

Hydro-Jetting

• High-pressure water jets effectively clear stubborn debris, grease, and tree roots.
• Costs: $300–$600, depending on the blockage's severity and the time required.

CCTV Inspections

• A tiny camera inspects the drain to identify the problem.
• Costs: $150–$300.
• Benefit: Prevents unnecessary digging by pinpointing the blockage location.

Mechanical Snakes

• Rotating blades or hooks clears debris effectively.
• Costs: $100–$350.
• Ideal for: Solid objects or tree roots.

Pipe Relining

• This no-dig method involves inserting a new lining within damaged pipes, restoring their functionality.
• Costs: $1,000–$2,000 per section.

Pipe Replacement

• If pipes are severely collapsed or damaged, replacement is necessary.
• Costs: $5,000–$20,000, depending on the extent of damage and location.

Preventive Measures to Avoid Blocked Drains

Prevention is always better than cure. Here’s how to keep your stormwater drains clear:

1. Install Drain Covers or Strainers

• Prevents debris like leaves, twigs, and dirt from entering the drains.

2. Regular Maintenance

• Schedule annual inspections with a licensed plumber to identify potential issues early.

3. Tree Root Management

• Trim tree roots near underground pipes or install root barriers.

4. Dispose of Waste Properly

• Avoid washing down fats, oils, grease, or non-biodegradable items.

5. Clear Gutters and Downpipes

• Regularly clean your roof gutters to prevent stormwater system blockages.

DIY vs Professional Drain Clearing

Here are the factors that impacted the cost of DIY and professional blocked stormwater drain clearing costs:

Aspect

DIY Clearing

Professional Services

Cost

Minimal

$100–$600+

Time

Immediate (if effective)

Depends on booking availability

Effectiveness

Limited to minor blockages

Suitable for all blockage types

Tools Required

Basic (plunger, auger)

Advanced (hydro-jets, CCTV cameras)

Risks

Worsening blockage or pipe damage

Expert handling ensures minimal risk

Common Blockage Signs and When to Act

Recognising early warning signs can save you from expensive repairs. Look out for:

• Slow Drainage: Water pooling around drains.
• Unpleasant Odours: Rotting debris in pipes causes bad smells.
• Gurgling Sounds: Air trapped in pipes may signal a blockage.
• Water Back-Up: Water reversing out of drains or toilets.
• Pest Issues: Bugs and rodents attracted to debris in drains.

When to Call a Professional: If DIY methods don’t work or symptoms worsen, it’s time to bring in an expert.

Final Thoughts

Dealing with a blocked stormwater drain cost can feel overwhelming, but with the right approach, it doesn’t have to be.

Whether it’s a minor block or a more serious issue, understanding the costs and methods available helps you make informed decisions.

Remember, prevention is the best strategy to avoid recurring issues.

If you’re facing a blockage or need expert advice, don’t hesitate to contact us here for reliable, professional service. Your stormwater system will thank you!

Frequently Asked Questions

1. How much does it cost to unblock a stormwater drain?

The cost varies from $150 to $600 for standard blockages. Severe cases requiring pipe replacement can exceed $5,000.

2. Is hydro-jetting effective for stormwater drains?

Yes, hydro-jetting is ideal for clearing stubborn debris, tree roots, and grease buildup.

3. Can I clear a blocked drain myself?

You can try plungers, augers, or baking soda solutions for minor blocks. However, professional tools and expertise are often required for severe blockages.

4. What are the common causes of stormwater blockages?

Tree roots, debris, grease accumulation, and collapsed pipes are the most common culprits.

5. Does home insurance cover drain clearing?

Some policies may cover damage from blocked drains but not routine maintenance. Always check your insurance terms.