Plumbing & Drainage

What we deliver

Cold and hot water supply, drainage and venting, sanitary fixtures, and pumping for offices, hotels, hospitals, factories and institutional buildings — installed, pressure tested and handed over.

Plumbing is the service nobody notices until it goes wrong, and when it does, it is usually concealed inside a finished floor or wall. The work that prevents that happens at installation: falls, venting, supports and testing.

Scope of works

Stage	What we deliver
Design	Fixture schedule, water demand, pipe sizing, riser strategy
Water supply	Cold and hot water distribution, valves, meters
Drainage	Soil, waste and rainwater lines with correct falls
Venting	Vent stacks and branch vents
Fixtures	Sanitary ware, CP fittings, pantry and wet area connections
Pumping	Transfer and pressure boosting pumps where required
Testing	Pressure test on supply, water test on drainage
Handover	As-built drawings, test records

Where projects go wrong

• Insufficient drainage fall. Slow drainage and blockages, discovered after the floor is finished.
• Venting omitted or undersized. Traps siphon, and the smell arrives in the occupied space.
• Pressure testing skipped. Leaks are then found in finished ceilings.
• Risers located late on a fit-out. Wet areas end up where drainage can reach, not where the layout needed them.
• Incompatible pipe materials at joints. A frequent and avoidable cause of failure.

Why Hagerstone

15 plumbers and 15 fitters in-house, with pipe threading, cutting, bending and pressure testing equipment owned rather than hired — and plumbing delivered alongside the interiors and firefighting it has to coordinate with.

79+ quality checkpoints under ISO 9001 / 14001 / 45001.

Standards referenced

Plumbing services under NBC 2016, Part 9. Basic requirements for water supply, drainage and sanitation to IS 1172.