Plumbing Core Hole Drilling in Kanpur

When the slab is cast and the walls are up, but the plumbing lines still need to pass through, you have two choices: break the concrete with a hammer and chisel (and damage the surrounding structure), or get a precise core drill. Whether you are running a 110mm PVC soil pipe from a bathroom or laying fresh water supply lines across a commercial building, professional plumbing hole cutting in Kanpur is the clean, structurally safe way to get the job done.

At CoreCut India, we work directly with plumbers, builders, and homeowners across Kanpur, Unnao, and Lucknow to provide neat circular cuts through brick, RCC slabs, and beams for all types of sanitary and water pipelines.

Why Plumbers Prefer Diamond Core Drilling

If you ask any experienced mistri or plumbing contractor, they will tell you that manual breaking for plumbing lines is a disaster. It exposes the TMT rebar to rust, weakens the slab, and leaves messy, jagged holes that take extra cement to patch up. Our Dongcheng diamond core drills run between 1200 to 2200 RPM, slicing through M20 or M25 concrete and steel reinforcement in minutes. The result is a clean circular opening that accommodates your CPVC or PVC pipe neatly.

We regularly drill holes for:

• Soil Pipes: For toilet waste (standard 110mm PVC).
• Waste Pipes: For bathroom floor traps, basin drainage, and kitchen sinks.
• Water Supply Lines: Hot and cold water routing through walls and slabs.
• Rainwater Pipes: Passing through balcony slabs and parapet walls.

Standard Hole Sizes for Plumbing Lines

Different pipes require different drill bits. We stock the exact sizes needed for standard Indian plumbing fittings:

• 2-Inch Core Drilling: Ideal for water supply lines (like 20mm copper or CPVC pipes), gas pipes, or AC drain lines.
• 3-Inch Core Drilling: The standard for waste water pipes coming from wash basins, washing machines, or kitchen sinks.
• 4-Inch Core Drilling: The most common size requested for bathroom hole cutting. Standard for 4-inch (110mm) toilet soil pipes.
• 6-Inch Core Drilling: Used for large drainage stacks in commercial buildings, basement sumps, or when multiple pipes need to run through a single sleeve.

New Construction vs. Bathroom Renovations

In new builds, it is recommended that PVC sleeves are placed in the shuttering before the concrete pour. But practically, changes happen. Layouts shift, walls move, or a sleeve gets choked with cement during casting. In these cases, core drilling is an effective, practical way to correct the path without delaying the project.

For bathroom renovations or modifying older homes in areas like Swaroop Nagar or Kakadeo, plumbing core drilling is completely essential. Older buildings often have 6-inch or 9-inch thick RCC slabs. If you are relocating a toilet or adding an attached bath, you need to penetrate the existing slab cleanly. We can work in tight spaces, preserving the existing structure and keeping vibrations to a minimum to protect nearby tiles and plaster.

Kitchen Plumbing Challenges

Kitchens require precision drilling for sink drainage, RO reject water lines, dishwasher outlets, and increasingly, piped gas line routing. A typical 4-inch RCC kitchen slab can be drilled in less than 20 minutes, allowing your plumber to finish the piping in a single day.

Volume Work: Drilling for Entire Apartments

A single bathroom might need 3 to 4 holes (toilet soil, floor trap, geyser lines). A typical 2BHK flat generally requires 8 to 12 plumbing holes across two bathrooms, a kitchen, and a balcony wash area. For multi-story residential projects in Kalyanpur, Kidwai Nagar, or Jajmau, we deploy multiple machines to handle hundreds of holes efficiently.

Pricing and Bulk Rates

Our standard rates for individual residential jobs start at Rs 500-800 for 2 to 5-inch holes, Rs 1000 for a 6-inch hole, and Rs 1200 for a 7-inch hole, depending on the slab thickness and amount of steel. However, if you are a builder or a plumbing contractor with a site requiring 20, 50, or 100+ holes, we offer special bulk pricing. We are a Service Area Business—meaning we bring our equipment directly to your site, ready to work.

Frequently Asked Questions

Can you drill a hole for a toilet pipe while minimizing disturbance to the ceiling below?

Diamond core drilling is designed to minimize unnecessary structural disturbance, subject to site conditions. Our drills use water to suppress dust and cool the bit, cutting smoothly rather than hammering. We take precautions to manage water runoff, but some localized dripping is expected when the drill breaks through the bottom of the slab. We recommend moving delicate items in the room below.

What happens if you hit a thick steel rebar while drilling?

Our diamond bits are designed to cut right through TMT bars (whether 8mm, 10mm, 12mm, or 16mm). While it slows the process down slightly, the machine will cut a clean cross-section through the steel, allowing the plumbing pipe to pass through without issue.

How soon can the plumber start working after you drill?

Immediately. Once we remove the concrete core from the hole, it is ready for the pipe to be inserted. There is no waiting time or curing required.

Need Professional Plumbing Core Hole Drilling in Kanpur?

Contact CoreCut India today for an on-site assessment and transparent quotation.