Are you experiencing low water pressure, weak flow at your cold kitchen tap or showers? This is a common issue that impacts many properties across the city, especially older homes or those with shared supply pipes.
Low water pressure turns simple tasks into daily frustrations, slow to fill at the kitchen sink, appliances like the washing machine struggling to run properly, and weak showers that never deliver a strong, consistent flow. Left unresolved, these issues impact comfort, waste time, and reduce the overall performance of your home’s plumbing system.
At London & Surrey Water Services, we specialise in fixing low water pressure problems, ensuring reliable water flow throughout your home. Our team has extensive experience handling issues with shared or lead supply pipes, undersized internal pipework, internal plumbing faults, or faulty stop taps.
From upgrading undersized water pipes and replacing lead supply lines to pinpoint leak detection and full system improvements, our experienced plumbers identify exactly where the problem lies. We focus on restoring strong, consistent water pressure and flow to every tap, shower, and appliance, so your home runs the way it should.
It’s important to distinguish between low water pressure and reduced water flow, as these terms describe two different problems within your plumbing system:
Refers to the force that pushes water through your pipes—when pressure is too low, you’ll notice weak flow at taps, poor shower performance, and reduced delivery across fixtures throughout the property.Â
Water pressure is typically measured in bars, and as a guide, one bar provides enough force to push water to a height of around 10 metres.
Thames Water is required to supply a minimum pressure of 1 bar at the property boundary, which is generally sufficient to fill a cold water storage tank in the loft of a typical two-storey home
Refers to the volume of water delivered through your taps over time, typically measured in litres per minute (L/min).Â
Flow rates are largely determined by the size and condition of your pipework. If any section is undersized, it restricts how much water can pass through.Â
When flow is restricted, you’ll notice a drop when more than one outlet is in use. For example, running a shower while flushing a toilet can cause the shower to drop to a trickle, as the pipework cannot deliver enough water to both at the same time.
Understanding these distinctions allows us to accurately diagnose and resolve the issues affecting your home’s plumbing system.
We are always happy to provide advice and a free estimate without obligation
Take advantage of our limited-time offer and save 10% on all lead pipe replacement works.This discount applies to full supply-pipe renewals carried out by our approved moling contractors.
Not sure whether your property has lead pipes or elevated lead levels in your water? We offer lead content testing to help you assess your risk before committing to replacement works.
We offer a full range of internal plumbing and supply pipe services including fault diagnosis, repair, replacement and new installations
If you’re experiencing low water pressure or poor flow, contact our team today for expert testing and a clear, reliable solution.
Contact us today to book a low-water-pressure investigation, call us, or request a callback.
We adopt a best practice approach to the work we carry out and ensure compliance with the Water Supply (Water Fittings) Regulations 1999
Our team has extensive experience carrying out plumbing works related to the mains water supply, including supply pipe installations, leak detection, and pipe upgrades across Greater London and Surrey.
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.
All work carried out by London & Surrey Water Services is backed by a workmanship guarantee, giving property owners confidence that installations and repairs are completed to a high professional standard.
We are trusted by homeowners across London and Surrey for reliable supply pipe works and specialist plumbing
We engaged with Alan to have our water main and internal piping replaced as they were made of lead. Alan came and gave us a comprehensive explanation of the work required and how to engage with Thames Water under their lead replacement scheme. He was the only person we could find that was up to handling both external moling and the internal works. Alan spent 2 days in our home completing the work, was polite and extremely unfazed by complications. He managed to reroute the piping under our tiled floor without having to break into it at all. The other reviews are very accurate and I couldn't recommend him highly enough!
After six months of wrangling with Thames Water, an insurance company, a motley collection of leak inspectors, pipe contractors and two plumbers, we still had a mains water pipe unrepaired and leaking under our drive. Alan came over, diagnosed a solution in minutes, and returned within a week to singlehandedly repair everything with care and without fuss. He really knows his stuff, and is wholly professional in his work. If only we had called him six months earlier. His company thoroughly deserves the five stars.
I had a leak and my water had shut down completely but the leak was not visible. The insurance company told me I needed to get someone in to do track and trace which I did and they totally scammed me. I had no water for 3 days and then I found Alan and he came round promptly, located the leak without all this track and trace equipment, took the floorboards up and fixed the leak, water back working — all in under an hour and at such a very reasonable cost. I cannot rate him enough and would highly recommend him.
Alan (aka London and Surrey Water Services Ltd) turned up and made two access points at the water meter and garage. Then with the precision of NASA he used a tunnelling mole and came up bang centre of his target. This was amazing to watch — a distance of over 20 feet with minimal disruption. My new water supply was in, effectively, efficiently and at very reasonable cost since he didn't have to dig up all my drive to find the leak at great expense. No hesitation in recommending Alan. Clive Cox CEng (retired) MEng.
Alan did a fantastic job for us investigating and resolving poor water flow issues to our flat. Other Thames Water approved plumbers were proposing major replumbing with quotes as high as £20k and even charged to quote. Alan proposed replacing the pipework from the road with wider gauge pipe as the first step and the problem was solved for barely a twentieth of that cost. He's clearly an expert at solving domestic plumbing problems and stood out from every other firm we spoke to. Can't recommend enough!
I contacted Alan following a letter from Thames Water advising of a water leak at my property. Having popped over to determine the likely cause, Alan sent through an itemised quote and patiently answered my additional questions. He and Pierce carried out the work in a thoroughly professional and minimally intrusive manner by moling a new pipe under my driveway and installing a new internal stop valve. London and Surrey Water Services combine subject matter expertise, assuredness, clarity, reliability, responsiveness and honesty. They made a stressful incident so much easier to deal with.
We contacted Alan to detect a leak because of which our water bills had been through the roof for several months. He was extremely professional, answered my questions patiently, detected the leak with no interruption to our day and above all, coordinated with Thames Water to repair the leak. He was very prompt in replying to any messages or questions I sent him and voluntarily sent me all the information I needed to claim a leak allowance from Thames Water. One of the best customer service experiences I have had in a long time!
After a disappointing experience with another plumber whose work failed to meet the water company standards, we contacted Alan and we're so glad we did! Alan came to the rescue, immediately identified the substandard installation, and redid the entire lead pipe replacement to a professional standard. He was highly efficient, knowledgeable, and genuinely trustworthy. He explained everything clearly and carried out the work with great care and precision. The difference in quality was obvious. Thanks to Alan, everything passed inspection with no issues, and we finally have peace of mind. Highly recommended!
I first found Alan McBride of London and Surrey Water Services in 2016 after I had no water for weeks and Thames refused to do anything about it. He was unbelievable in his knowledge, his support, going over and above by advocating for me with Thames and getting the problem fixed. 7 years later I called on Alan again and it is inspiring to watch how thorough he is and how his mind works. He worked it out and the fix was simple. He really is quite a plumbing and water specialist genius!
A calm, pleasant and reassuring presence, Alan turned up early for his appointment and made replacing a leaking supply pipe under our Victorian house in West London seem like a simple task, causing the minimum of disruption. He is highly knowledgeable, efficient and professional, and even reduced his already-reasonable invoice because part of his quotation did not need to be done. Honest, conscientious and down-to-earth, Alan is a pleasure to deal with.
I found Alan's details on the Thames Water WaterSafe Approved Plumbers list and chose to contact him because of the amazing reviews he has received on Google. Alan was able to successfully install an internal water stopcock into a Victorian terrace house with very complex plumbing. Alan was very easy to deal with, very hard-working and explained exactly what he was doing. Alan's prices are also very reasonable. I will definitely contact Alan and London and Surrey Water Services for any future plumbing requirements I have. Very highly recommend.
Alan has done a fantastic job replacing our lead mains pipe following an internal water leak. He is helpful, professional and clear providing sensible advice including utilising his great experience and knowledge of working with Thames Water. He is quick to respond to any queries and he works diligently and neatly. To do the final connection once Thames Water were ready, Alan came back to complete the job with no fuss. Really strongly recommend Alan and really pleased we chose him.
Alan was superb from start to finish. From arriving to prepare a quote, doing the work, tidying up and making good and coming back to finish once Thames Water had completed their part of the lead pipe replacement. He helped with the various administration parts of the lead pipe replacement scheme by Thames Water which saved a lot of confusion, providing advice and explanation every step of the way. I would not hesitate to recommend Alan for any other similar work.
Called Alan to investigate a leak at the end of the driveway. He replaced the supply pipe into the house without disturbing the driveway which was a bonus. He was very professional, knowledgeable, personable and helped us submit for the lead pipe replacement scheme with the water company. Regularly checked in with us as the works between himself and water company were coordinated. Highly recommend Alan.
Clear answers to common low water pressure problems, helping you understand the cause and the right solution for your property.
A sudden drop is often caused by a leak or burst pipe, a partially closed internal stop tap, or an issue on the mains. Check if neighbours are affected, if so, it’s likely the water supplier or network.
Water companies must meet minimum standards at the boundary, but they don’t usually increase pressure beyond that. If only your property is affected, the issue is typically internal pipework or your supply pipe rather than the main water supply.
Pressure is measured in bars or pounds per square inch. As a guide, 1 bar ≈ 10 metres head. Thames Water must supply at least 0.7 bar at the boundary stop valve, which should fill a loft tank in a typical two‑storey home.
Use a simple pressure gauge on an outdoor tap or the kitchen tap. As an example, testing at the cold water tap during peak morning demand can highlight pressure changes.
That’s usually a flow limitation. Undersized pipes can’t carry enough water to multiple outlets, so running a shower and another tap (or flushing a toilet) can reduce the shower to a trickle.
Yes. Trapped air or a partially closed internal stop valve can restrict flow. Ensure all valves are fully open before calling a plumber.
In London, it’s usually undersized or ageing pipework (often legacy lead), shared supply pipes, or internal restrictions rather than the mains supply.
Yes—around 30 psi (~2 bar) is on the low side for modern homes, especially for showers and appliances.
Yes. Our team comprises fully qualified engineers and plumbers trained in the latest trenchless technology. We follow all relevant industry standards and regulations.
Not always, but a sudden drop at the cold kitchen tap can indicate a leak. Check your meter overnight for movement and look for damp patches or noise.
Yes. Frozen pipes restrict or block flow, causing a sudden drop in pressure. Once thawed, performance may return, but the pipe should be checked for damage.
A gradual loss is often due to limescale build‑up on the inlet control valve. This restricts incoming water, reducing hot water flow at showers. Cleaning or replacing the valve restores performance.
Combi boilers depend on the mains supply. If the flow is poor, there’s usually a restriction (undersized or corroded pipes, filters, or scale) even if the pressure appears normal.
Try simple steps: ensure the stop tap is fully open, clean tap aerators/shower heads, and check for obvious leaks. If issues persist, professional testing is recommended.
If the issue is only in your property, yes. An experienced plumber can test at the water meter, boundary, and internal points to find where the problem lies.
We diagnose at the boundary and internally, locate restrictions, and deliver permanent fixes—from pipe upgrades to dedicated supplies—restoring strong, reliable flow. If you need more help, our team is ready to assist.
We provide low water pressure investigation and resolution across all London boroughs and the wider Surrey and South East region, helping homeowners, landlords and property managers restore reliable water supply.
South London – Bromley – Croydon – Merton – Kingston upon Thames – Sutton – Wandsworth – West London – Brent – Ealing – Hammersmith & Fulham – Harrow – Richmond upon Thames – Hillingdon – Hounslow – East London – Barking & Dagenham – Bexley – Greenwich – Hackney – Havering – Lewisham – Newham – Redbridge – Tower Hamlets – Waltham Forest – North London – Barnet – Enfield – Haringey – Central London – Camden – City of London – Kensington & Chelsea – Islington – Lambeth – Southwark – Westminster – Surrey – Elmbridge – Epsom – Guildford – Mole Valley – Reigate – Runnymede – Spelthorne – Surrey Heath – Tandridge – Waverley – Woking
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