Water Mains Replacement
- Hertfordshire External Moling
- London External Plumbing
- Bedfordshire Water Leak Repairs
- Buckinghamshire Water Mains Replacement
- Hertfordshire Supply Pipe Repairs
- London Emergency Plumbing
- Bedfordshire Leak Detection
- Buckinghamshire Common Supply Works
Trenchless Water Mains Replacement
Trenchless Pipe Replacement with Impact Moling
At Brennan Moling, we use the latest state-of-the-art leak detection equipment to accurately locate leaking water pipes. Once identified, we can replace the damaged pipes without the need for traditional excavation. This is made possible through our advanced Impact Moling service, which is ideal for the installation, renewal, and repair of mains water pipes in a cost-effective and efficient manner.
Our trenchless moling techniques allow us to replace or install water mains without digging unsightly trenches across your property. This means less disruption to gardens, driveways, and other outdoor areas. Based in Hertfordshire, Brennan Moling operates with a strong focus on using modern, non-invasive technology to minimise both time and cost for our clients.
Why Choose Impact Moling?
By utilising our high-precision impact moling equipment, we can create underground routes for new or replacement pipework without large-scale excavation projects. This method involves compact machinery that bores small tunnels underground, through which pipes are pulled into place from either end.
The benefits of trenchless technology include:
- Minimal surface disruption – no need to dig up large areas of land
- Faster installation times – work is completed more quickly than traditional methods
- Reduced labour costs – fewer workers are required on site
- Lower equipment hire costs – smaller, more efficient tools mean fewer expenses
Once the moling equipment has created the necessary channels, the new pipework is seamlessly installed with minimal mess and disturbance. This modern approach dramatically reduces the overall cost and environmental impact when compared with conventional trench-digging methods.
If you are looking to save time and money on your water main replacement, Brennan Moling offers a professional and highly effective alternative with our trenchless solutions. Get in touch today to find out more.






Our Watersafe / WIAPS Reassurance
We work from your properties boundary up to the connection inside your home and will provide a complete service that takes you effortlessly through the entire installation process.
Here at Brennan Moling we are an approved water safe company for water supply pipe replacement approved contractor.
Our replacement service consists of site risk assessments, installation, reinstatement and connection of the water main. Upon completion Brennan Moling will be more than happy to sign off the work and you will receive a WIAPS (Water Industry Approved Plumbers Scheme) Certificate.
- Emergency Pipe Repair
- Emergency External Plumbing
- Emergency Water Leak Repairs
- Emergency Water Mains Replacement
- Hertfordshire External Moling
Why You Should Choose Us Brennan Moling
24/7 Availability to assist you with any water main enquiries or emergencies—day or night. Trusted Across London, Hertfordshire, Beds & Bucks supporting all Customers to trust us to handle their water mains emergencies with reliability and professionalism when it’s needed.
Clear & Honest Pricing, we have a transparent pricing method, offering Free estimates and detailed quotes to explain the cost of our Water main services.
- We Provide Qualified Plumbers
- Quality Workmanship
- Experienced
- Reliable
- Water Mains Replacement (check out our Photo Gallery)
- Leak Repairs
- New Water Supply
- Services to Improve Water Flow
- Mole Cable Ducts
- Telephone Ducting
- Storm & Foul Sewer Drainage
- Manhole Repairs works undertaken
- All Levels of Reinstatement Works
- Fixed prices all work quoted
- WIAPS / WATERSAFE Approved
- £5m Public Liability Insurance
- Always here to help
