Water Main Replacement & Installation
Replacing old or damaged pipes with new ones to ensure a safe, reliable water supply.
- Remove and dispose of damaged or outdated sections
- Install new pipes and fittings
- Test for leaks and ensure proper pressure
Water main specialists for Kent & South East London
Underground water supply work without the usual disruption.
From leak detection and lead pipe upgrades to full trenchless replacements, GC Maintenance handles incoming water supply problems with specialist equipment, clear advice and minimal mess.
- Fully qualified and insured team
- Honest diagnosis before work starts
- Domestic, commercial and specialist projects
- Fast response across our coverage area
Water industry approved
Specialist incoming supply expertise
Minimal disruption
Moling and no-dig installation methods
Clear advice
Diagnosis, options and pricing explained upfront
Local coverage
Kent and South East London
Specialist support for every stage of the job
Whether you need diagnosis, emergency repair, a pressure investigation or a full replacement, we guide you to the right solution quickly and explain the options clearly from the start.
Explore our services
Find the right service for your property, whether you need a specialist inspection, a targeted repair or a full installation carried out with minimal disruption.
Water Main Replacement & Installation
Replacing old or damaged pipes with new ones to ensure a safe, reliable water supply.
- Remove and dispose of damaged or outdated sections
- Install new pipes and fittings
- Test for leaks and ensure proper pressure
Free Water Main MOT & Leak Check
A free, no-obligation inspection of your incoming water supply for hidden leaks and poor pressure.
- Basic leak indication checks
- Stop tap isolation and pressure observations
- Honest advice with no obligation
Premium Water Main MOT Survey
A detailed incoming water supply inspection with digital testing, compliance observations and a written PDF report.
- Pressure, flow and hardness testing
- Lead pipe and leak risk assessment
- Professional PDF report with recommendations
Boundary Box Leaks
Investigation and repair of leaks in boundary boxes, external stop taps and meter chambers.
- Boundary box investigations
- Responsibility guidance
- Targeted excavation and repairs
Burst Water Main Repairs
Emergency diagnosis and repair for burst underground water mains and flooded supply pipes.
- Emergency excavations
- Fast leak diagnosis
- Repair or replacement options
Lead Pipe Replacement
Replacement of ageing lead water mains with modern MDPE pipework for better flow and reliability.
- Lead to MDPE upgrades
- Pressure and flow improvements
- Minimal disruption installation
Trenchless Moling
No-dig moling installations for new underground water mains with minimal disruption.
- Two-pit installations
- Driveway and garden protection
- 25mm and 32mm supply upgrades
Underground Leak Detection
Tracer gas, acoustic and pressure testing to pinpoint hidden leaks on underground water mains.
- Tracer gas testing
- Acoustic leak location
- Repair or replacement advice
Why customers choose GC Maintenance
Specialist underground supply work is less forgiving than general plumbing. Customers need a team that can diagnose correctly, install compliantly and leave the site in good order.
Specialist capability
Targeted equipment, modern methods and service-specific expertise.
Compliant delivery
Work carried out to current standards with safety and reinstatement in mind.
Responsive support
Quick contact, practical advice and a direct line to the team.
Straightforward quotations
Clear recommendations and pricing before major works begin.
15+
Years delivering practical site work
Experience across domestic properties, specialist repairs and ongoing maintenance requirements.
No-dig
Methods that reduce disruption
Moling and targeted excavation keep driveways, gardens and access routes protected wherever possible.
Fast
From first call to first recommendation
Customers get practical next steps quickly, whether they need to call, request a quote or compare service options first.
Need help with your incoming water supply?
Call for direct advice on leaks, low pressure, lead pipe upgrades or a full replacement, or use the contact page to request a callback.
What Our Customers Say
Don't just take our word for it - hear from our satisfied customers
"GC Maintenance provided excellent electrical services for our office renovation. The team was professional, punctual, and the work was completed to a high standard. Highly recommended!"
"Outstanding plumbing service! They fixed our emergency leak within hours and the price was very reasonable. The plumber was knowledgeable and explained everything clearly."
"The drainage team was fantastic. They used the latest CCTV technology to identify and fix our sewer issue without digging up the entire garden. Brilliant service!"
"Professional and reliable service from start to finish. The no-dig solution saved us thousands compared to traditional methods. Will definitely use again!"
"Excellent EV charger installation service. The team was fully qualified and the installation was completed efficiently. Great communication throughout the process."
"The leak detection service was exceptional. They found and fixed a hidden leak that other companies missed. Saved us from potential water damage. Highly professional team!"