Stop Valve Replacement

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London & Surrey Moling Contractor

At London & Surrey Water Services Ltd, we provide reliable impact moling services for water supply pipe replacement, upgrades, and repairs.

Using advanced trenchless technology, our skilled and approved contractors offer a straightforward, efficient solution for installing and replacing underground pipes.

Whether you need a water supply pipe replacement, system upgrade, or urgent repairs, our fully qualified engineers deliver exceptional results with minimal disruption to your property.

What is Impact Moling

Impact moling is a limited dig, low-impact method of replacing underground water pipes. 

The use of moling equipment allows replacing lead pipes, upgrading existing supply pipes, or separating shared water supply pipes can be completed quickly with minimal disruption to existing landscapes..

By excavating a series of carefully chosen launch and retrieval pits at the required depth, the pneumatically driven impact mole tunnels its way underground, leaving a route for the new pipe in its path..

Moling is one of the most reliable and least disruptive methods of carrying out water supply pipe replacements employed throughout the water industry today. 

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Typically, water supply pipe replacement involves excavating a launch pit at the customer’s side of the property boundary (in line with the outside stop valve) and a retrieval pit at the newly chosen point of entry into the building. 

The excavations are small enough to be excavated in carefully chosen locations by hand. 

The impact mole will bore underground from the launch pit at the boundary to the retrieval pit at the new point of entry into the building. The supply pipe replacement can then be fed through the borehole to be connected to the outside stop valve and internal plumbing. 

Having problems with your water supply?

We're always happy to offer advice and a free estimate without obligation for any problems you are experiencing with your water supply or internal. 

The benefits of using our Moling Services

We adopt a best practice approach to the work we carry out and ensure compliance with the Water Supply (Water Fittings) Regulations 1999

Experienced Plumbers

We have been  Water Industry approved plumbers and impact moling contractors for almost two decades, working exclusively on new connections, customer side leaks, and lead replacement

Certified Compliance

On completion of lead pipe renewals or a water supply pipe upgrade, we issue a certificate of works completed, which can be submitted to Thames Water to progress applications or satisfy enforcement notices.

Guaranteed Workmanship

Our certificates confirm that our workmanship satisfies the requirement of the water regulations. They also act as our guarantee of ten years for full supply pipe replacement and two years for supply pipe repairs.

What Our Customers Say

We've built a solid reputation through our continually growing customer base as the most trusted team of Approved Plumbers and Moling Contractors in London.

Mark Gunn Bromley, BR1

I would highly recommend Alan. I wish we had found him earlier because it would have saved us both time and money. We had a water leak at our house which could not be located. I contacted other “experts” in underground water problems before finding Alan, none of them could offer a convincing solution. Alan is an expert in this area and articulated very clearly the alternative solutions and the pros and cons of each. Alan is very professional, hard working and tidy - you would not be able to tell that concrete and flagstones were removed to do the work. Excellent job.

Alexander Ritchie Dulwich, SE19

We had a severe water leak that was flooding the basement of our house. Alan and Grant dealt with this emergency straight away. The organisation for our job was efficient, and we were kept informed at all points in the process. The repair was complex. It required moling through the basement exterior wall and installing a new connection to our internal supply. Alan carried this difficult task out efficiently and quickly, causing the least disruption possible, and it was a pleasure to deal with both him and Grant. Their price for the work was very reasonable. highly recommend!

David Haslett New Malden, KT1

Alan went above and beyond when installing my new water mains. He was prompt, professional, communicative, and really helpful, taking time after the job was done to offer advice on getting the best out of the new supply. I am amazed at how quickly he could get the job done and left the house so clean afterwards you would never have known he was there. The fact he is Thames Water approved was also a huge bonus and made the whole process much quicker and easier. I can't recommend him highly enough and would 100% use London & Surrey Water Services again.

David Haslett New Malden, KT1

Alan went above and beyond when installing my new water mains. He was prompt, professional, communicative, and really helpful, taking time after the job was done to offer advice on getting the best out of the new supply. I am amazed at how quickly he could get the job done and left the house so clean afterwards you would never have known he was there. The fact he is Thames Water approved was also a huge bonus and made the whole process much quicker and easier. I can't recommend him highly enough and would 100% use London & Surrey Water Services again.

Some Of Our Recent Work

Our focus is on delivering cost-effective, safe, and reliable solutions for the replacement of lead water supply pipes.

Frequently Asked Questions

We adopt a best practice approach to the work we carry out and ensure compliance with the Water Supply (Water Fittings) Regulations 1999

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Our Moling Service Area

South London – Bromley – Croydon – Merton – Kingston – Sutton – Wandsworth – West London – Brent – Ealing – Hammersmith  – Harrow  – Richmond Hillingdon – Hounslow – East London – Lewisham – Greenwich – Hackney – Tower Hamlets – Newham – Bexley – Waltham Forrest – North London – Barnet –Enfield– Haringey – Central London – Camden – City of London – Kensington – Islington – Lambeth – Southwark – Westminster – Surrey – Elmbridge – Epsom  Guildford – Mole Valley – Reigate –  Runnymede – Spelthorne – Surrey Heath – Tandridge – Waverley – Woking