Pipe Relining Service
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Pipe relining services insert an epoxy-saturated felt liner through an existing cleanout, inflate it against cracked or root-infiltrated drain pipe walls, and cure it into a seamless jointless pipe — sealing defects and restoring structural integrity without excavating slabs, driveways, or mature landscaping. Bonded Plumbworks’ licensed plumbers camera-inspect and hydro-jet the host pipe before liner installation, use an inversion drum to achieve uniform resin contact throughout the full run, and perform a post-cure inspection to verify liner adhesion. Pipe relining typically costs 30 to 50 percent less than open-trench replacement once landscape restoration, concrete cutting, and extended labor are factored in.
Pipe relining is a trenchless pipe rehabilitation method that installs a resin-saturated flexible liner inside an existing damaged pipe, then cures the liner in place to form a new, jointless pipe within the old pipe. The cured liner seals cracks, bridges joint separations, stops root intrusion, and restores smooth interior flow. — Bonded Plumbworks
Trenchless relining is particularly valuable where mature landscaping, pool decks, paver driveways, and concrete slabs make traditional excavation highly disruptive and expensive.
What Is Pipe Relining
Pipe relining creates a seamless pipe-within-a-pipe by inverting or pulling a flexible liner saturated with thermoset epoxy resin into the damaged host pipe. The liner is inflated against the host pipe walls and cured using ambient temperature, hot water, or UV light depending on the resin system. Once cured, the liner forms a rigid, corrosion-resistant new pipe with a smooth interior surface and no joints.
Cured-in-place pipe lining typically reduces the host pipe’s internal diameter by 5 to 10 percent, which is offset by the significantly smoother interior surface of the epoxy liner. The Manning equation for pipe flow confirms that the reduced friction coefficient of the lined pipe maintains or improves flow capacity despite the slight diameter reduction. — Bonded Plumbworks
CIPP relining is approved for pipes ranging from 2 to 12 inches in diameter, covering the full range of residential drain and sewer pipe sizes from branch lines to main sewer laterals. All pipe relining installations must conform to the ASTM F1216 design standard, which governs liner thickness calculations, structural rating methodology, and quality assurance testing requirements for cured-in-place pipe. CIPP liner wall thickness engineering determines the structural capacity of the finished liner based on the host pipe diameter, depth of burial, groundwater conditions, and soil loading — thicker walls are specified for deeper pipes or deteriorated host pipes that provide no residual structural support.
When to Schedule Pipe Relining
Pipe relining restores cracked, root-infiltrated, and channel-corroded drain pipe from the inside without excavation, preserving slabs, driveways, and mature landscaping.
Pipe relining is the appropriate solution when:
- Camera inspection reveals cracking, joint separation, or corrosion in drain pipes
- Root intrusion occurs through pipe joints and cannot be permanently stopped by cutting alone
- The damaged pipe runs beneath a concrete slab, driveway, or pool deck
- Mature landscaping over the pipe run makes excavation undesirable
- Cast iron drain pipe shows channel corrosion but has sufficient remaining wall to support a liner
- Isolated sections of pipe have deteriorated while the overall system remains serviceable
- The homeowner wants to avoid multi-day excavation disruption
- Bellied pipe sections are minimal enough that relining can bridge the defect
Relining is not appropriate for pipes that have completely collapsed, are severely bellied, or have lost structural integrity to the point where they cannot support the liner during installation. For isolated damage in an otherwise sound pipe, a CIPP point repair (spot liner) addresses a single defect in a 2- to 6-foot section without lining the entire run, reducing pipe relining cost and installation time. A lateral liner extends pipe relining from the main sewer line into individual branch connections, sealing the junction point where root intrusion most frequently occurs.
How Pipe Relining Works
Step 1: Video Camera Inspection
Our plumber inserts a high-definition sewer camera to document the pipe’s condition, measure distances, identify the failure type, and confirm that the pipe is a candidate for relining. Camera inspection determines pipe diameter, material, defect locations, and access point availability.
Pipe Relining inspection gives you a live view of the problem before any work starts. You review the findings and approve the quote before any repair begins.
Step 2: Pipe Cleaning and Preparation
Before liner installation, the host pipe must be thoroughly cleaned to remove roots, scale, grease, and debris that would prevent proper liner adhesion. We use hydro-jetting or mechanical cleaning to prepare the pipe interior. For root intrusion, a mechanical cutting head removes roots flush with the pipe wall.
Step 3: Liner Preparation and Insertion
A felt or fiberglass liner is cut to the measured length and saturated with epoxy resin in a controlled process that ensures uniform resin distribution. The saturated liner is inserted into the pipe through an existing cleanout or access point using an inversion drum installation method that turns the liner inside out with calibrated air or water pressure, ensuring uniform resin contact with the host pipe walls throughout the entire pipe relining run.
Step 4: Inflation and Curing
The liner is inflated against the host pipe walls using calibrated air or water pressure. This forces the resin-saturated liner into full contact with the pipe interior, filling cracks and bridging joint gaps. Heat-cured CIPP uses circulating hot water or steam to accelerate the resin cure, reducing pipe relining completion time to 2 to 4 hours compared to 4 to 8 hours for ambient-cure systems. UV cure takes 1 to 2 hours. Integrated CIPP condition sensors (strain gauges) embedded in the liner wall monitor cure progression in real time, verifying that the resin reaches full hardness before the pipe relining is declared complete.
Step 5: Reinstatement and Final Inspection
After curing, any branch line connections that were covered by the liner are reopened using a robotic cutting tool inserted through the pipe. We run a final camera inspection to verify the liner is fully cured, properly adhered, and free of wrinkles, delamination, or obstructions. A CIPP cure profile report documents temperature readings throughout the cure cycle, confirming that the resin reached its required exotherm threshold for full structural strength — this record verifies pipe relining quality for warranty and inspection purposes. The completed liner carries a structural rating equivalent to new PVC pipe.
Benefits of Pipe Relining vs Traditional Replacement
Pipe relining eliminates excavation, preserving landscaping, hardscaping, and building structures above the pipe. When comparing pipe relining to a traditional dig-and-replace approach, the total project cost for relining is typically 30 to 50 percent lower once landscape restoration, concrete cutting, and extended labor hours are factored into the excavation alternative. Installation time is typically half or less than traditional dig-and-replace methods. The cured liner creates a jointless pipe with no entry points for root intrusion, addressing the root cause of many recurring drain problems.
The smooth epoxy interior surface reduces friction and resists scale buildup, maintaining flow capacity indefinitely. The lined pipe carries a design life of 50 years per the National Association of Sewer Service Companies (NASSCO) standards, comparable to new PVC installation.
Relining costs are typically 30 to 50 percent less than traditional excavation and replacement when accounting for landscape restoration, concrete work, and extended labor hours associated with open-trench methods. Successful pipe relining also contributes to I&I reduction (inflow and infiltration), because the jointless cured liner eliminates the entry points where groundwater seeps into the sewer system and overloads treatment capacity during storms.
Pricing for Pipe Relining
Pipe relining pricing depends on the pipe diameter, liner length, access conditions, and the degree of cleaning and preparation required before liner installation. Longer runs and larger diameters require more liner material and resin. Pipes requiring extensive root removal or hydro-jetting before relining add preparation costs.
CIPP financing options are available for qualifying homeowners, allowing the cost of pipe relining to be spread over monthly payments rather than paid upfront. Bonded Plumbworks provides a detailed estimate after camera inspection confirms the pipe is a relining candidate. Call (855) 557-9600 for your camera inspection and relining consultation.
Our Qualifications for Pipe Relining
Bonded Plumbworks’ licensed plumbers hold state-certified plumbing contractor licenses and maintain specialized training in CIPP relining systems. Our technicians operate professional-grade inversion equipment, UV cure systems, and robotic cutting tools for reinstatement work. We follow NASSCO and ASTM F1216 standards for all residential relining installations.
Frequently Asked Questions
How long does pipe relining last?
CIPP relining carries a design life of 50 years per NASSCO standards, with many industry experts projecting 75 to 100 years based on material testing. The epoxy liner is corrosion-resistant, root-proof at the joints (because there are no joints), and maintains structural integrity without the deterioration that affects original pipe materials.
How much does pipe relining cost?
Pipe Relining typically costs $1,500 to $5,000 for pipe relining depending on pipe diameter and length. The final price depends on the scope of work, accessibility, and materials required. Bonded Plumbworks provides a written estimate before starting any work, so you know the exact cost upfront. Call (855) 557-9600 for a free estimate.
Does pipe relining reduce pipe diameter?
The liner reduces the internal diameter by approximately 5 to 10 percent (the thickness of the cured liner wall). However, the smooth epoxy interior surface has significantly lower friction than corroded cast iron or rough concrete pipe, so actual flow capacity is maintained or improved despite the slight diameter reduction.
How soon can I use the drains after relining?
Curing times depend on the resin system. Ambient-cure liners require 4 to 8 hours. Hot water or UV-cured liners can be returned to service in 2 to 4 hours. Your plumber will provide a specific timeline based on the liner system used and confirm when the drains are ready for normal use.
Back to Pipe Repair Repiping
Schedule Your Pipe Relining
Repair damaged drain pipes without digging up your property. Bonded Plumbworks’ licensed plumbers provide expert trenchless pipe relining. Call (855) 557-9600 to schedule your camera inspection and relining consultation today. Every pipe relining service includes a 90-day guarantee on pipe relining work, covering parts and labor.