Core Capability
CIVIL ENGINEERING
Executing complex outfall and drainage infrastructure in highly sensitive and constrained locations across the North West.
Executing complex outfall and drainage infrastructure in highly sensitive and constrained locations across the North West.
Executing complex outfall and drainage infrastructure in highly sensitive and constrained locations across the North West.
6.0m
Max Trench Depth
1500mm
Max Pipe Dia.
S104
Adoptable Standard
Service Breakdown
SCOPE OF
WORKS.
01
Main Sewer Connections
Precise connection to existing highly-pressured or deep main sewer networks, managing live flow and extreme water table logistics safely.
01
Main Sewer Connections
Precise connection to existing highly-pressured or deep main sewer networks, managing live flow and extreme water table logistics safely.
02
Attenuation & Soakaways
Installation of large-scale offline cellular storage tanks and advanced SUDS (Sustainable Urban Drainage Systems) for major residential developments.
02
Attenuation & Soakaways
Installation of large-scale offline cellular storage tanks and advanced SUDS (Sustainable Urban Drainage Systems) for major residential developments.
03
Complex Shoring & Temporary Works
In-house design and deployment of heavy-duty trench boxes, drag boxes, and hydraulic bracing to guarantee 100% safety in constrained excavations.
03
Complex Shoring & Temporary Works
In-house design and deployment of heavy-duty trench boxes, drag boxes, and hydraulic bracing to guarantee 100% safety in constrained excavations.
04
Adoptable Systems
Full delivery of Section 104 adoptable drainage, ensuring rigorous testing, CCTV surveys, and immediate local authority sign-off without delays.
04
Adoptable Systems
Full delivery of Section 104 adoptable drainage, ensuring rigorous testing, CCTV surveys, and immediate local authority sign-off without delays.
Execution & Machinery
ENGINEERED
FOR DEPTH.
Deep drainage is high-risk engineering. We do not rely on third-party plant hire. GRS utilises its fleet of heavy excavators and specialized shoring equipment to control the critical path and eliminate downtime.
Technical Specs
Technical Specs
Technical Specs
Direct Workforce
Direct Workforce
Direct Workforce
Hydraulic Shoring Systems
Hydraulic Shoring Systems
Hydraulic Shoring Systems
Dewatering & Overpumping
Dewatering & Overpumping
Dewatering & Overpumping
Laser Guided Pipelaying
Laser Guided Pipelaying
Laser Guided Pipelaying
GALLERY
Next Steps
READY TO BREAK GROUND?
Engage our delivery team for your upcoming deep drainage or infrastructure package.
OR SPEAK TO THE TEAM DIRECT:
01744 410600
North West Civil Engineering.
Built on heritage. Driven by absolute delivery.
Collins Industrial Estate, Merton Bank Road, St. Helens, Merseyside, WA9 1HY
CONNECT
2026 GRS Contractors Ltd.All rights reserved.Registered in eEngland & Wales.
Created By IAN CHEVEAU MARKETING
North West Civil Engineering.
Built on heritage. Driven by absolute delivery.
Collins Industrial Estate, Merton Bank Road, St. Helens, Merseyside, WA9 1HY
CONNECT
2026 GRS Contractors Ltd.All rights reserved.Registered in eEngland & Wales.
Created By IAN CHEVEAU MARKETING
North West Civil Engineering.
Built on heritage. Driven by absolute delivery.
Collins Industrial Estate, Merton Bank Road, St. Helens, Merseyside, WA9 1HY
CONNECT
2026 GRS Contractors Ltd.All rights reserved.Registered in eEngland & Wales.
Created By IAN CHEVEAU MARKETING