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Plumbing problems, explained properly

Honest, practical guides from our engineers — how things fail, what you can safely fix yourself, and when calling a professional saves you money.

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Plumber unblocking the pipework beneath a kitchen sink

How to Unblock a Sink: 6 Methods That Actually Work

Blocked sink? Learn 6 proven ways to unblock a kitchen or bathroom sink — from boiling water and plungers to cleaning the trap — and when to call a plumber.

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Gas Safe engineer checking pressure on a combi boiler

Why Does My Boiler Keep Losing Pressure?

Boiler pressure keeps dropping? Learn the 4 most common causes — leaks, radiator bleeding, failed pressure relief valves and expansion vessels — and how to re-pressurise safely.

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Plumber repairing chrome tap pipework under a sink

How to Fix a Dripping Tap (and Why You Shouldn't Ignore It)

A dripping tap wastes up to 5,500 litres a year. Learn what causes it, how to replace a washer or cartridge yourself, and when it's smarter to call a plumber.

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Heating engineer levelling a newly installed radiator

Why Is My Radiator Cold at the Bottom? (Sludge, Explained)

A radiator that's hot at the top but cold at the bottom almost always means sludge. Learn what heating sludge is, how powerflushing fixes it, and how to prevent it.

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Plumber repairing the fill valve on a close-coupled toilet

Toilet Keeps Running? Here's What's Wrong and How to Fix It

A constantly running toilet wastes up to 400 litres a day. Learn how to diagnose a faulty fill valve, flush valve or flapper — and fix it before your water bill notices.

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Plumber working at the pipework under a kitchen sink where stopcocks are commonly found

How to Find Your Stopcock (Do It Before You Need It)

In a burst pipe emergency, knowing where your stopcock is saves your home. Learn the common stopcock locations in UK homes, how to test yours, and what to do if it's seized.

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Plumber repairing a copper pipe in an airing cupboard

Frozen Pipes: What to Do (and What Never to Do)

Frozen pipes often burst as they thaw. Learn how to thaw pipes safely, the warning signs, what never to do, and how to stop pipes freezing again next winter.

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Engineer diagnosing a combi boiler with a multimeter

No Hot Water? 8 Causes and What to Check First

No hot water from your boiler or cylinder? Work through these 8 common causes — from pressure and pilot lights to diverter valves and immersion heaters — before calling an engineer.

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Plumber fitting a chrome shower valve on a tiled wall

Low Water Pressure in Your House? Causes and Fixes

Weak taps and pathetic showers? Learn what causes low water pressure in UK homes — one outlet vs whole house — and the fixes, from cleaning aerators to shower pumps.

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New combi boiler installed in a kitchen cupboard

How Much Does a New Boiler Cost in the UK? (2026 Guide)

New boiler prices explained for 2026: combi, system and heat-only costs, what installation includes, what changes the price, and how to avoid overpaying.

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Radiator being installed on a living room wall

How to Bleed a Radiator in 5 Steps

Radiator cold at the top? Trapped air is the cause and bleeding is the two-minute fix. Follow our 5-step guide, plus what to do if bleeding doesn't work.

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Plumber repairing a leaking copper pipe joint

7 Signs You Have a Hidden Water Leak

Hidden leaks cause rot, mould and shocking water bills. Learn the 7 warning signs — from meter checks to warm floor patches — and how professionals find leaks without wrecking your home.

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