Tree roots are one of the leading causes of blocked drains in Sydney homes. While trees provide beauty, shade, and environmental benefits to your property, their root systems can wreak havoc on your underground plumbing. If you're dealing with tree root invasion, knowing how to remove tree roots from your drains effectively is crucial to protecting your home.
In this comprehensive guide, we'll explain why tree roots target your drains, how to identify the problem, and the three most effective methods to remove tree roots permanently.

Why Do Tree Roots Block Drains?
Tree roots are naturally drawn to your drain pipes – and it's not by accident. Your sewer and stormwater pipes provide the perfect environment for root growth:
- Moisture: Constant water flow creates the damp conditions roots crave
- Nutrients: Waste water contains organic matter that nourishes root systems
- Warmth: Flowing water keeps pipes warmer than surrounding soil, especially in winter
- Oxygen: Small cracks or joints in pipes release oxygen that attracts roots
Unfortunately, most Sydney homeowners don't realize they have tree roots in their drain pipes until significant damage has occurred. By the time you notice a blockage, roots may have been growing inside your pipes for months or even years.
How Tree Roots Invade Your Pipes
The process typically unfolds like this:
- Initial entry: Tree roots detect moisture and nutrients escaping through tiny cracks, loose joints, or deteriorating sections of old pipes
- Root penetration: Fine hair-like roots enter through these small openings
- Rapid growth: Once inside, roots flourish in the ideal growing conditions
- Complete takeover: Roots expand and multiply, eventually filling the entire pipe diameter
- Blockage formation: The root mass catches debris, toilet paper, grease, and other materials flowing through the pipe
- Sewage backup: The blockage causes sewage to back up into your home, creating health hazards and potential property damage
Old ceramic, clay, or metal pipes are particularly vulnerable to root invasion as they develop cracks and weak joints over time.
Warning Signs You Need to Remove Tree Roots
How do you know if you need to remove tree roots from your drains? Watch for these telltale symptoms:
Early Warning Signs:
- Water draining slowly from sinks, toilets, or showers
- Gurgling noises from toilets or drains when water is running
- Foul sewage odours near drains or in your yard
- Soft, soggy patches in your lawn (indicating underground leaks)
- Lush, unusually green patches of grass above sewer lines
Advanced Warning Signs:
- Sewage backing up into toilets, showers, or floor drains
- Multiple blocked drains throughout your home
- Sinkholes appearing in your yard
- Recurring blockages that return shortly after clearing
If you notice any of these signs, it's time to investigate and remove tree roots before extensive damage occurs.
3 Proven Methods to Remove Tree Roots from Drains
When it comes to removing tree roots from blocked drains, you have three main options. The right choice depends on the severity of the invasion, the condition of your pipes, and your budget.
1. High-Pressure Jet Blasting
Best for: Temporary clearing and regular maintenance
High-pressure jet blasting is the quickest and most affordable way to remove tree roots from drains. This method uses specialized equipment that shoots water at extremely high pressure (up to 5,000 PSI) through your pipes, cutting through root systems and clearing blockages.
How it works:
- A CCTV drain camera locates the exact position and extent of the root blockage
- High-pressure water jets are inserted into the drain
- The powerful water stream cuts through roots and flushes debris away
- The entire length of the pipe is thoroughly cleaned
Advantages:
- Fast results – usually completed within hours
- Cost-effective compared to other methods
- Non-invasive with no digging required
- Successfully clears drains in approximately 90% of cases
Limitations:
- Temporary solution lasting 6-12 months
- Roots will regrow if entry points aren't sealed
- Not suitable for collapsed or severely damaged pipes
- Requires annual maintenance to prevent recurrence
Cost: Generally the most affordable option for immediate relief
Jet blasting is ideal if you need a quick fix or want to establish a regular maintenance schedule. Many Sydney homeowners opt for annual jet blasting to keep tree roots under control affordably.
2. Pipe Relining (No-Dig Solution)
Best for: Permanent removal and prevention of tree root regrowth
Pipe relining is an innovative solution to remove tree roots and prevent them from returning. This no-dig technology creates a new pipe within your existing damaged pipe, sealing off all entry points that roots use to invade.
How it works:
- CCTV camera inspection confirms pipe relining is suitable
- High-pressure jet blasting removes existing roots and cleans the pipe
- A flexible liner saturated with epoxy resin is inserted into the pipe
- The liner is inflated to press firmly against the inner pipe walls
- The epoxy cures, creating a seamless, smooth new pipe interior
- The result is a pipe that's actually stronger than new PVC
Advantages:
- Permanent solution – relined pipes last 50+ years
- No excavation means no damage to landscaping, driveways, or structures
- Completed in 1-2 days in most cases
- Prevents future root invasion by sealing all cracks and joints
- New pipe surface is smooth, preventing debris buildup
- Minimal disruption to your property and daily routine
Limitations:
- Higher upfront cost than jet blasting
- Not suitable for completely collapsed pipes
- Requires adequate pipe structure to support the liner
Cost: Mid-range investment with long-term value
Pipe relining is the gold standard when you want to remove tree roots permanently without destroying your property. It's particularly popular in Sydney where mature trees and heritage properties make excavation impractical.
3. Excavation and Pipe Replacement
Best for: Severely damaged, collapsed, or extensively deteriorated pipes
When pipes have collapsed or suffered extensive structural damage, excavation and replacement may be your only option to remove tree roots and restore proper drainage.
How it works:
- CCTV inspection identifies damaged pipe sections
- Excavation equipment digs down to expose the affected pipes
- Damaged sections are removed completely
- New, durable PVC pipes are installed
- The area is backfilled and restored
Advantages:
- Addresses pipes that are beyond repair
- New PVC pipes are highly resistant to root invasion
- Modern pipes last 50-100 years
- Opportunity to upgrade pipe diameter if needed
- Permanent solution for severe structural issues
Limitations:
- Most expensive option
- Requires significant excavation and property disruption
- May involve removing driveways, pathways, or landscaping
- Longer completion time (several days to a week)
- Restoration costs for landscaping and structures
Cost: Varies widely depending on location, depth, and length of pipe requiring replacement
Excavation is typically reserved for worst-case scenarios where pipes have collapsed, are extensively damaged by roots, or are too deteriorated for relining.
Which Method Should You Choose to Remove Tree Roots?
Choosing the right method to remove tree roots depends on several factors:
Choose jet blasting if:
- You need immediate, affordable relief
- The blockage is recent and pipes are structurally sound
- You're willing to maintain an annual cleaning schedule
- Budget is a primary concern
Choose pipe relining if:
- You want a permanent, no-dig solution
- Your pipes have cracks or joints but aren't collapsed
- You want to avoid property damage from excavation
- Long-term value is more important than upfront cost
Choose excavation if:
- Pipes have completely collapsed
- Damage is too extensive for relining
- You're already renovating or re-landscaping
- CCTV inspection confirms replacement is necessary
Preventing Future Tree Root Problems
After you remove tree roots from your drains, take these steps to prevent recurrence:
- Plant wisely: Keep trees at least 3-5 meters from sewer lines
- Choose root-friendly species: Select trees with less aggressive root systems
- Schedule annual inspections: Regular CCTV checks catch problems early
- Maintain with jet blasting: Annual cleaning prevents root re-establishment
- Consider pipe relining: Seal vulnerable pipes before roots invade
- Replace old pipes proactively: Upgrade aging ceramic or clay pipes to modern PVC
Why Choose Sydney Drain Surgeons to Remove Tree Roots
At Sydney Drain Surgeons, we specialize in all three methods to remove tree roots from drains. Our experienced technicians will:
- Conduct thorough CCTV inspections to diagnose the extent of root invasion
- Recommend the most cost-effective solution for your specific situation
- Use state-of-the-art equipment for jet blasting and pipe relining
- Complete work efficiently with minimal disruption to your property
- Provide honest advice – we won't recommend excavation unless absolutely necessary
- Offer competitive pricing with no hidden fees
We're available 24/7 for emergency drain services. If tree roots are blocking your drains and causing sewage backup, don't wait for the problem to worsen.
Call Sydney Drain Surgeons on 02 9158 3564 for expert assessment and professional tree root removal across Sydney.
Don't let tree roots destroy your plumbing system. Whether you need emergency jet blasting, permanent pipe relining, or full pipe replacement, Sydney Drain Surgeons has the expertise and equipment to remove tree roots and restore your drains to perfect working order.