Water Pipe Leak Sealing

At Seal Team Systems, we specialise in water pipe leak sealing using WRAS approved materials that let your systems keep running, no need to shut down, depressurise, or disrupt critical supplies. With decades of first-hand experience, our engineers handle repairs on leaking pipes under full pressure, safeguarding your water supply, minimising downtime, and preventing further loss or damage.

As Safe Contractor-approved specialists, we understand the risks and urgency involved with water leaks. That’s why we use industry-leading injection techniques and certified sealants to deliver fast, long-lasting results for domestic, commercial and industrial clients all over the UK.

We provide full assessment and solution design before every repair. First, our experienced engineers identify the source and assess the pipework, whether the leak is at a threaded connection, a joint, a crack, or along the pipe body. We then deploy containment equipment to control escaping water, ensuring your area stays clean and safe throughout the process.

Using specialist injectors, we introduce a WRAS-approved water leak sealant compound directly into the leak site, even if the pipe is still under pressure or handling drinking water. The injected sealant cures rapidly, forming a strong, flexible, and permanent seal from within the pipe structure. This durable seal moves with the pipe as conditions change, resisting high temperature fluctuation, pressure surges, and vibration.

Every step is designed to protect system integrity and reduce water loss. There’s no need to shut down your operations; our practical approach keeps water flowing so critical services stay uninterrupted.

We only use water leak sealants formulated for UK drinking water systems. Our compounds, each fully WRAS approved, adhere to the strictest standards for potable water, guaranteeing non-toxicity and long-term safety. Each sealant is selected to match the pipe’s metal, pressure, and environmental conditions. Whether your leak is on a steel, copper, iron, or plastic pipe, we fill and seal cracks, pinholes, and leaking joints. The flexible sealant layer adapts to changes in pressure and temperature, protecting against failure and further leaks.

For threaded connections, our engineers choose sealants that provide excellent coverage and prevent future leaks at potential weak points. Our application method creates a watertight barrier without introducing harmful chemicals, keeping your water clean and compliant.

From first contact to final repair, our process is transparent. Here’s how we work:

1. Initial Assessment: Speak to one of our engineers for free over the phone. We’ll clarify the problem, the type of system, and any risks. If appropriate, we arrange a site visit, often within 24 hours, and for urgent issues, our 24/7 online leak sealing team can mobilise immediately.
2. On-Site Survey: We assess pipework damage, location, pressure, and the best sealing approach.
3. Application: Using containment and injection equipment, we apply the sealant to the precise leak site, even while the pipe remains operational.
4. Verification: We pressure-test every repair and check for system integrity, only signing off after a successful result.
5. Ongoing Support: We document the repair and provide advice to help maintain your water systems for the long term.

Our team has successfully repaired leaking mains water pipes on busy commercial sites under constant pressure with zero shutdown. We have sealed domestic drinking water pipes in flats and houses where isolating the supply would disrupt residents. We have also restored pressure and security on corroded steel pipework in older public buildings with minimal intervention.