Construction Service - 07 / 11

Drainage, Sewer & Water Infrastructure Systems

Underground and surface water management networks designed for reliability, compliance and urban flood mitigation.

Service CategoryWater & Drainage Infrastructure
Execution ModelUnderground & Surface Systems
ComplianceWASA / DPHE Standards
Delivery ReachUrban & Rural Nationwide
SERVICE OVERVIEW / 01

Drainage, sewer and water infrastructure delivered with system-level thinking, compliance assurance and thorough testing.

Zakir Enterprise constructs drainage, sewer and water infrastructure systems for urban, industrial and institutional clients — covering underground pipe networks, open channel systems, manholes, pumping stations and water supply lines.

Our underground works teams manage the full installation sequence — trench excavation, bedding preparation, pipe laying, joint inspection, manhole construction, testing and backfill — with safety-controlled trench management and WASA or DPHE compliance at every step.Surface drainage systems, stormwater channels and flood mitigation networks are integrated alongside underground infrastructure to provide complete catchment-level water management solutions for both new developments and rehabilitation projects.

  • Underground pipe network installation and jointing
  • Manhole, inspection chamber and inlet construction
  • Open channel and surface drainage systems
  • Sewer rising main and pumping station works
  • Water supply distribution network installation
  • Pressure testing, CCTV inspection and commissioning
SCOPE OF WORK / 02

Underground and surface drainage installed, tested and reinstated to compliance standard.

Water infrastructure delivery covers the full sequence — survey to trench to test to reinstatement — with safe excavation controls and WASA/DPHE compliance maintained throughout.

01 / 06

Network Layout & Trench Excavation

Pipe route survey, trench excavation to design depth with safe shoring and dewatering as required.

02 / 06

Pipe Laying & Jointing

Concrete, PVC, HDPE and ductile iron pipe laying with joint inspection and bedding to specification.

03 / 06

Manhole & Chamber Construction

Precast or in-situ manhole, inspection chamber, inlet and junction box construction at design locations.

04 / 06

Surface Drainage Channels

Open channel, box drain and roadside drain construction for surface runoff collection and conveyance.

05 / 06

Testing & CCTV Inspection

Hydrostatic pressure testing, leakage testing and CCTV camera inspection of installed pipelines.

06 / 06

Backfill, Compaction & Reinstatement

Controlled backfill in layers, compaction testing and surface reinstatement of roads or pavements disturbed.

EXECUTION PROCESS / 03

Five sequential stages from network survey to pipe installation, testing and reinstatement.

Underground drainage delivery follows a strict sequence — survey, excavate, install, test, reinstate — with trench safety controls and WASA compliance maintained at every step.

01
Phase 01

Network Survey & Design Review

Pipe route confirmation, invert levels, slope checks and material specification review.

02
Phase 02

Excavation & Preparation

Trench excavation, shoring, dewatering and pipe bedding preparation.

03
Phase 03

Pipe Laying & Structure Build

Pipe installation, jointing, manhole construction and utility crossings.

04
Phase 04

Testing & Inspection

Pressure test, CCTV inspection, leak check and system performance verification.

05
Phase 05

Backfill & Reinstatement

Layer backfill with compaction testing and full surface reinstatement.

WHY ZAKIR ENTERPRISE / 04

Selected for underground expertise, safe trench management and WASA compliance.

Drainage clients choose us for our pipe laying experience, safe excavation management and record of delivering to WASA, DPHE and government drainage specifications.

01

Underground Works Specialists

Experienced pipe laying and manhole teams with safe trench management on urban and rural sites.

02

WASA & DPHE Compliance

Works delivered to national water and sewerage authority specifications with full test records.

03

Multi-Pipe Material Capability

Concrete, RCP, PVC, HDPE, DI and GRP pipe installation — material matched to service and loading.

04

Flood Mitigation Design Awareness

Drainage systems sized for catchment hydrology and flood-level compliance requirements.

05

Safe Trench Management

Trench shoring, edge protection and permit-to-enter systems for confined space safety.

06

Testing Before Backfill

All pipelines tested and inspected before trench reinstatement so defects are caught early.

EXECUTION STRENGTH / 05

Trenching machines, pipe handling equipment and CCTV inspection systems.

From high-production trenching units and dewatering pumps to pipe tongs, compaction rammers and CCTV inspection cameras — our drainage fleet is matched to urban and rural underground works.

Owned Fleet - Trained Operators
120+
Active equipment units

Underground installation capability for drainage, sewer and water supply networks.

Our drainage teams manage the full installation sequence — trench to pipe to test to reinstatement — with safe excavation procedures, compliance documentation and CCTV inspection before backfill.

01
Trenching Machines & Chain Excavators
High-production trenching for drainage and utility pipeline routes.
02
Pipe Handling & Laying Equipment
Side-boom tractors and pipe tongs for safe large-diameter pipe installation.
03
Dewatering Pumps
Wellpoint and submersible systems for trench and excavation dewatering.
04
Compaction Rammers & Plates
Trench compaction equipment for backfill layer density compliance.
05
CCTV Inspection Systems
Push-rod and crawler CCTV cameras for internal pipeline inspection.
06
Concrete & Masonry Units
Mixers, vibrators and formwork for in-situ manhole and chamber construction.
FREQUENTLY ASKED / 07

Questions about drainage, sewer and water infrastructure systems.

Clear answers to what municipalities, developers and government clients ask most often before engaging Zakir Enterprise for underground drainage and water works.

Still have a question?

Speak with our project team for a detailed discussion on scope, timeline and pricing.

Contact Project Team
We install RCP, PVC, HDPE, ductile iron, GRP and concrete pipes — the material selected based on service type, loading, chemical exposure and client specification.
We use laser levelling and invert level checks at each pipe length and manhole to verify gradient compliance against design before backfilling.
Yes. We prepare Traffic Management Plans and utility avoidance schemes for urban underground works, with service scanning before trench excavation begins.
We conduct hydrostatic or air pressure leakage tests and CCTV internal inspection — results are documented and submitted as part of the handover package.
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Drainage, Sewer & Water Infrastructure Systems · Zakir Enterprise