
Trenchless drain replacement is the right solution when a pipe has failed beyond what relining can address, but excavating a full trench would cause unacceptable disruption or cost.
Galaxy Plumbing Inc. provides this service for:
Galaxy Plumbing Inc. delivers a complete trenchless drain replacement service from diagnostic inspection through to final commissioning:

A CCTV camera documents the pipe condition, maps the exact run, measures diameter and depth, and confirms whether pipe bursting or directional pull is the correct technique.
Small entry and exit pits are excavated at each end of the replacement section. These are typically 1 to 2 metres square, far smaller than a full-length trench.
A bursting head or pulling head is threaded through or to the existing pipe. As it advances, it fractures the old pipe outward into the surrounding soil while simultaneously drawing new HDPE pipe into the void.
The new pipe is connected to the existing drain system at each end, with proper joint sealing and transition fittings installed to code.
A final camera run confirms correct pipe alignment, full joint integrity, and unobstructed flow through the new pipe.
Access pits are backfilled and compacted. Surface restoration is completed to match the surrounding area.

Both trenchless drain replacement and pipe relining avoid full-length excavation, but they address different levels of pipe failure. The comparison below clarifies when each method applies.
Not sure which method is right for your pipe? A drain camera inspection from Galaxy Plumbing Inc. provides the documented diagnosis to make that determination accurately.
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Galaxy Plumbing Inc. provides trenchless drain replacement across the Greater Toronto Area for residential, commercial, and multi-unit properties:

Trenchless drain replacement delivers a complete pipe replacement outcome with a fraction of the surface disruption associated with conventional open-cut excavation:
For properties where the drain condition has led to basement flooding, Galaxy Plumbing also provides sump pump installation and flood prevention solutions to protect the property after the drain is restored.

1. What is pipe bursting and how does it work?
Pipe bursting is a trenchless pipe replacement technique in which a conical bursting head is pulled through the existing failed pipe using a hydraulic or pneumatic winch. As the head advances, it fractures the old pipe outward into the surrounding soil and simultaneously pulls a new HDPE pipe into the space the old pipe occupied. The result is a fully new pipe installed with access pits at each end only. For a site-specific assessment, schedule a drain camera inspection with Galaxy Plumbing.
2. Can trenchless drain replacement upsize my pipe?
Yes. Pipe bursting is one of the few drain replacement methods that can install a larger diameter pipe than the one being replaced in a single operation. Because the bursting head fractures the old pipe outward, the surrounding soil is displaced to accommodate the new pipe, which can be the same size or up to one pipe size larger. This makes pipe bursting a useful option when the existing drain is undersized for current demand. Contact Galaxy Plumbing to confirm upsizing options for your specific pipe configuration.
3. How much does trenchless drain replacement cost compared to open-cut excavation?
Trenchless drain replacement typically costs less than conventional open-cut excavation once the full project scope is considered. While the specialised equipment adds cost versus basic trenching labour, the elimination of driveway cutting, landscaping removal, full-length trench backfill and compaction, and surface restoration often results in a lower total cost. The final comparison depends on pipe depth, soil conditions, and access constraints. Galaxy Plumbing provides itemised estimates for both methods after the initial camera inspection. For urgent situations, our emergency repairs team can respond immediately.
4. Do I need a permit for trenchless drain replacement in Ontario?
Drain replacement in Ontario, including trenchless methods, typically requires a plumbing permit from the local municipality. Work that connects to or modifies the municipal sewer connection may also require notification or inspection by the city. Galaxy Plumbing Inc. advises on permit requirements specific to your municipality and property after the initial site assessment. Our team handles permit documentation as part of the project. For properties also requiring backwater valve installation, we coordinate that permit through the same process, which may qualify for the flood prevention solutions subsidy programs available in some GTA municipalities.
5. How long does trenchless drain replacement take?
Most residential trenchless drain replacement projects are completed in two to three days, including camera inspection, access pit excavation, pipe bursting or pulling, final inspection, and pit restoration. Complex projects involving deep pipes, multiple access pits, or larger diameter commercial lines may take longer. Galaxy Plumbing Inc. provides a project-specific timeline after the initial camera inspection. For properties experiencing active sewage backup, our emergency repairs team is available 24/7.

Galaxy Plumbing Inc. provides a complete range of drain and water services across the GTA alongside trenchless drain replacement: