Trenchless pipe relining is a modern plumbing solution to repair damaged underground pipes without the need for excavation. This method is faster, cleaner and more cost-effective than traditional pipe replacement. Learn about the benefits of trenchless relining or call us to schedule pipe relining services.
Trenchless relining repairs underground pipes without excavation, preserving landscapes and infrastructure. It involves creating a new pipe by inserting a specialised liner inside the existing pipe. This liner creates a seamless new pipe within the old one, fully functioning as a replacement.
A 'no-dig’ approach utilises CCTV cameras to evaluate damage and navigate the relining apparatus through pipes. The liner is then expanded to fit the inner walls of the existing pipe using hot water, air pressure, or UV light.
After curing, the liner forms a smooth, joint-free and durable new pipe within the original structure.
Compared to traditional open-trench pipe replacement, trenchless relining is less disruptive, faster, more cost-effective, and better for the environment as it generates less waste and site contamination. Gardens, driveways, and roads remain intact, avoiding the need for disruptive digging. With drain pipe relining, your property stays cleaner and daily life is less impacted.
The trenchless relining process involves several key steps:
Advancements in CCTV, robotics and resin materials have made trenchless drain relining an extremely effective 50 to 100-year solution. It now repairs around 90% of damaged pipelines in developed countries like Australia without lengthy disruption or major restorative works.
High-pressure water jetting thoroughly cleans the drain pipes before the relining commences. This blast of water scours the pipe walls to remove debris, roots, grease buildup and corrosion that could affect liner bonding.
Effective cleaning is critical to prevent contaminants from being trapped under the new pipe surface post-relining. If not addressed, this could lead to future blockages or liner separation issues that may damage your plumbing system.
Once cleaned, a remote-controlled CCTV camera is fed through the pipes to inspect their condition in detail. Using the live video feed, our technicians will assess:
A meticulous CCTV inspection allows us to grasp the extent of the damage, enabling the creation of a tailored liner for your pipes. It also serves as a before and after record of the restoration works.
Both the high-pressure clean and CCTV inspection are essential prerequisites in the trenchless relining process. They enable our technicians to develop the best repair strategy and liner design for your unique pipe layout and damage profile.
Once the existing pipes are cleaned and assessed, it’s time to insert the custom-fabricated Cured-In-Place (CIPP) epoxy resin liner.
This flexible fabric tube is soaked (impregnated) with a specially formulated 2-part epoxy resin. Our technicians feed the collapsed liner, which is then inserted into the pipe, usually from an existing manhole or access point.
An inflatable rubber bladder is inserted inside the liner in the existing pipe structure. Inflating the bladder with water or air presses the liner against the pipe walls, sealing defects.
We maintain this pressure for several hours as the epoxy resin begins to cure and harden. Hot water circulation or steam is sometimes used to accelerate and control resin curing times. The inflatable bladder is finally deflated and removed once the liner is fully hardened inside old pipe walls.
CIPP epoxy relining allows for seamless repairs of pipes underneath buildings, roads and sensitive areas where open excavations are difficult, dangerous or prohibited. The liner’s flexibility allows it to navigate and repair bends and junctions unreachable by rigid pipes.
This robust cured epoxy layer restores structural integrity, provides leak protection, resists chemical attack and effectively serves as the main sewer line’s new internal wall. With proper installation, CIPP liners located under various landscapes have a verified lifespan of 50+ years.
Once the resin-saturated CIPP liner is correctly positioned, the next vital step in the relining method is curing the epoxy resin to solidify the liner and form a durable new pipe.
Steam, hot water, or UV light uniformly cures the resin within the liner. Steam accelerates curing and enables better resin saturation while hot water circulation ensures even heat distribution. We carefully monitor temperatures and curing times.
Ambient temperature resins are also available which negate the need for hot water or steam. However curing takes much longer, usually over 8 hours.
Controlled curing transforms the soft, impregnated fabric into a hard, jointless pipe robust enough to withstand internal pressures and external loads. This seamless, corrosion-resistant epoxy barrier renews the pipe’s structural integrity for decades.
Correct curing methodology is critical to realising the designed 50-100 year lifespan of the CIPP liner. Our trenchless specialists fine-tune these parameters to deliver optimal resin polymerisation while keeping disruption minimal.
The end result is a like-new pipe-within-a-pipe restoring full functionality with minimal surface impact – no digging or ground destruction required!
Trenchless relining offers numerous advantages over conventional open-trench pipe replacement. It saves substantially on costs with projects typically more affordable than traditional methods since no excavation or surface demolition is needed. There is also less business disruption with most repairs taking only 1-2 days versus weeks for standard methods.
The process generates minimal waste while avoiding environmental contamination from soil removal or pipe exposure. The durable epoxy resists corrosion, abrasion, roots and chemicals - outlasting traditional pipe materials several times over.
Sewer gases stay fully contained as well. CCTV inspections pre and post-lining provide quality assurance.
With less heavy equipment required onsite, relining is safer for workers and the public while reducing noise, dust and traffic impacts. It restores your drain pipe repair capacity and water pressure too by smoothing internal walls and clearing blockages. Trenchless solutions can reinforce structurally deficient pipes at a fraction of replacement costs.
Trenchless relining offers significant savings in cost and time compared to traditional pipe repairs. By negating nearly all excavation works, projects cost 30-50% less on average.
Materials are also minimised as the existing pipe is restored instead of removed and replaced. There is less equipment and labour needed onsite with crews typically smaller by 30-50%. Specialist access such as confined space entry and sheet piling/shoring are avoided too.
Repairs are typically completed in just 1-2 days, in contrast to the weeks or months required for conventional dig-and-replace methods. This means vastly reduced downtime and disruption for residences and businesses.
Flow-on savings apply in areas like landscaping, concrete and asphalt replacement which increase exponentially on fully dug up sites. Overall, opting for trenchless relining over traditional pipe replacement methods provides superior value for money and much faster repairs.
One of the biggest perks of trenchless relining is how minimally disruptive it is, especially compared to traditional pipe replacement methods. Since no excavation or ground-breaking is involved, daily life is less impacted for both residential and commercial settings.
Gardens, driveways and landscaped areas remain fully intact. With no jackhammering or use of heavy machinery, noise, dust and site contamination are avoided above the main sewer. Sewer gases stay safely contained as well.
In urban areas, traffic flow and parking access suffer minimal interference. No roads need re-surfacing post-works either. The public enjoy much safer worksites with less tripping hazards and no open trenches.
Environmental benefits apply too. With very little waste generated or trucking needed, the carbon footprint is greatly reduced. Soil ecology stays undisturbed as well since pipes are restored from within rather than dug up and disposed of.
The seamless PVC or epoxy liners used are also non-toxic, durable and recyclable. They prevent further environmental contamination from leaks in degraded pipes. Overall, trenchless relining delivers major advantages in site disruption, rehabilitation costs and sustainability.
While trenchless relining has numerous benefits, there are some considerations to keep in mind when determining if it’s the right solution:
Our trenchless specialists will inspect the pipes first and advise if lining is unsuitable, answering any queries such as 'do I need a complete replacement?'. For severely damaged drains, a partial repair/replacement may be recommended instead. We’re happy to discuss suitable alternatives that balance costs and practicality.
Trenchless relining is a pipe restoration method that involves inserting a liner soaked with epoxy resin into damaged plumbing or sewer pipes to create a new pipe inside the old one. This provides an efficient sewer repair solution for broken or clogged pipes without having to dig trenches or break up flooring and driveways.
Technicians initially perform CCTV inspections to determine the practicality of trenchless pipe lining. Generally, sewer lines that maintain structural integrity without full collapses or extreme blockages can be strong candidates for relining. The pipe material and layout like bends are also reviewed.
The primary advantages are:
Relining costs vary with factors like pipe size, length, material, and complexity. As a guide, relining a standard 50mm residential sewer pipe starts from $2,500 whereas a commercial 300mm stormwater drain could be $25,000+. Please call us for an obligation-free quote.
Indeed, trenchless relining is commonly used for pipe restoration in factories, offices, apartments, and shopping centres. We work closely with strata and facilities managers to minimise downtime and disruption.
Pipe relining is a trenchless method that inserts a protective epoxy lining inside existing pipes to repair damage and prevent leaks. It’s faster, cleaner and more affordable than pipe replacement in older homes. The relined pipes can last 50+ years.
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