Moling Company in Chertsey: Trenchless Lead Pipe Replacement Across KT16
We’re T&L Moling Contractors, WIAPS-registered specialists in trenchless water supply pipe replacement across Chertsey and the KT16 postcode. The town sits on the Thames floodplain, on gravelly ground with a naturally high water table, which is precisely where open trenching turns into a wet, slow job.
From the Georgian terraces around Windsor Street to the post-war homes at Penton Park, a lot of Chertsey property still runs on original lead.
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About Us
Chertsey is a riverside town with a long history and a mixed housing stock to match. The historic core around Windsor Street, London Street and Guildford Street is dominated by Georgian-refronted terraces and Victorian villas, much of it inside the Chertsey Conservation Area, while later expansion spread out through St Ann’s Hill, Abbey Mead and the 20th-century estates at Penton Park. Many of these older properties were first plumbed with lead supply pipes that are still in the ground today. Chertsey is well within our working area: we cover Surrey extensively and regularly work in nearby Weybridge, Woking and Guildford, so we know the ground conditions across this part of the county.
Whichever part of town you’re in, the method is the same. We dig two small pits, one near the boundary stop tap and one where the pipe enters the house, drive a mole between them and pull a new MDPE pipe through behind it. Your driveway, lawn, patio and paths stay intact, and most Chertsey jobs are finished in a single day.
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Why choose us?
Fast turnaround & competitive pricing
Minimal mess & no trenches
Fully approved & insured
Friendly, professional service
What is Moling?
Moling is a no-dig way of installing a new water supply pipe along the route of an old one, and on Chertsey’s geology it makes particular sense. Much of the built-up area sits on river terrace gravels and Bagshot sand over London Clay, with a high water table close to the Thames, so an open trench across a front garden tends to fill with water and produce a lot of spoil. With moling we avoid almost all of that. We excavate two small access pits, one near the boundary stopcock and one near the property, then drive an impact mole through the ground between them and pull a new MDPE supply pipe in behind it. The old lead pipe is disconnected at both ends and left buried. The ground in between, whether that’s a gravel drive, a lawn or paving, is never opened up, which on this kind of free-draining floodplain ground is a real advantage over digging a trench.
Why Replace Lead Pipes?
Chertsey’s mains water is supplied by Affinity Water, not Thames Water, which handles wastewater locally. The supply runs hard, at roughly 290 ppm as calcium carbonate, which Affinity Water classes as hard to very hard across its Surrey region. What actually puts lead in your tap water is the old pipe itself, with lead dissolving into water that has stood overnight in an ageing lead supply line.
Add Chertsey’s older Georgian and Victorian housing, much of it still on original lead, and there are plenty of those pipes still in service. Most homeowners here get in touch after one of the following:
- A failed lead test or a flag from their plumber
- A letter from Affinity Water about lead in the supply
- Discoloured or metallic-tasting tap water
- Noticeably low water pressure compared to neighbours
- A solicitor or surveyor raising it during a property sale
Key Benefits of Moling
No-Dig, Mess-Free Installation
Protects your landscaping and driveway.
Replaces Old Lead Supply Pipes
Meets modern water safety standards.
Improves Water Pressure
Smooth, wide pipes enhance flow.
Provides Cleaner, Safer Water
Eliminates contamination risk.
Faster & More Affordable
Reduces labour and reinstatement costs.
Our Services
Lead Water Pipe Replacement
Water Main Supply Pipe Replacement
Replacing Water Mains from House
Electric Armoured Cable Installation
Utility Installations
Service Areas (40-Mile Radius of Guildford)
- Surrey
- Hampshire
- Berkshire
- Buckinghamshire
- Oxfordshire
- Hertfordshire
- Sussex
- London
Resources & Guides
Lead Pipe Replacement Cost in 2025 – A Homeowner’s Guide
Typical cost: £800–£2,000, depending on pipe length, access, and surface type. Trenchless moling helps avoid costly restoration work — and we always provide fixed, transparent quotes.
- Discoloured or metallic-tasting water
- Low water pressure
- Frequent leaks or damp spots
- Property built before 1970
- Visible corrosion or old lead/steel pipes
1. Site Survey
2. Moling Setup
3. Pipe Installation
4. Connection
5. Restoration
Most jobs are completed within one day.
07554 708609 Get a quick quote
Areas we cover
Hampshire & Surrey borders: Aldershot, Basingstoke, Camberley, Farnborough, Fleet, Frimley, Hook
South West Surrey: Farnham, Frensham, Godalming, Guildford, Haslemere, Hindhead
North Surrey & Thames: Addlestone, Chertsey, Egham, Epsom, Kingston, Leatherhead
South London: Bromley, Croydon
Sussex & South Surrey: Crawley, Horley, Horsham
© 2026 T&L Moling Contractors
Experts in Trenchless Moling & Lead Pipe Replacement across Chertsey and the surrounding areas.