Low Water Pressure Investigation

What a low water pressure investigation covers

This service is designed to move from symptoms to a confirmed cause, so any repair work is targeted and effective.

• Confirm whether the issue affects hot, cold, or both
• Measure pressure and flow at key outlets to spot patterns
• Check internal stop tap and isolation valves for restrictions
• Inspect visible pipework for leaks, damage, or poor connections
• Assess common restriction points such as strainers, filters and valves
• Check for signs of scaling or blockages, especially on older pipework
• Identify whether the problem is within the property or linked to the incoming supply
• Review hot water performance where relevant (for example, combi boiler flow limits)
• Explain findings clearly and recommend the most sensible remedial options

When this service is the right fit

Book an investigation when pressure is consistently poor but you cannot pinpoint why. It is also a good fit if the issue is intermittent, only affects certain taps or showers, or gets worse when more than one outlet is running. Landlords and small commercial sites often use this service to resolve repeat complaints and document findings before authorising repairs.

How the investigation is carried out

You will be asked a few focused questions about when the problem happens and which outlets are affected. Testing then follows a logical sequence, typically starting at the easiest access points and working towards the likely restriction or loss point. Some checks may require brief water shut-offs, and you may be asked for access to key areas such as the kitchen stop tap, bathroom fittings, and any plant cupboard.

What happens after the investigation

You will receive a clear summary of what was tested, what was found, and what is most likely causing the low pressure. You will also get recommended repair options, with priorities if there is more than one contributing factor. If the issue appears supply-side, you will be advised on the evidence gathered and the typical next steps to take with the water supplier.