Leaking Tap Repair Checklist for Redruth Homeowners

Published August 2026 | Leaking Tap Repair Guide

This checklist covers the key steps for spotting, tracking, and preventing leaking taps in your home - from simple visual inspections you can do yourself through to the professional work that keeps your plumbing sound year round. Staying on top of these checks regularly is one of the most effective ways to avoid the water damage and inflated bills that turn a small fix into a much bigger job.

Quick Visual Checks Anyone Can Do

You don't need any tools or plumbing knowledge to run through these basic checks. Our engineers recommend doing these every few weeks - it takes less than ten minutes and can flag problems before they get expensive.

1. Check around the base of every tap. Lift any soap dishes or accessories sitting around the base and look for moisture, white mineral deposits, or rust staining. Even a small amount of lime scale build-up around the base can indicate a slow leak that's been going on for a while.
2. Open the cabinet under the sink. Look at the pipes connecting to the taps and check for damp patches, drips, or any discolouration on the wood or chipboard base. In older Redruth properties, these pipes are sometimes copper and can develop pinhole leaks over time.
3. Feel the tap handles. A handle that's stiff, gritty, or that spins without resistance can signal worn washers or a damaged cartridge inside the tap body. Don't ignore this - it usually gets worse, not better.
4. Turn the tap fully off and listen. Stand quietly near the tap after turning it off properly and listen for a drip. Even one drip per second can waste several litres of water a day and adds up quickly on a metered supply.
5. Look at the wall behind the basin or bath. Bubbling paint, soft plaster, or dark patches on the wall behind a tap fitting often means water has been seeping somewhere it shouldn't. This is more common in Cornwall's older housing stock, where original pipework may never have been replaced.
6. Check the spout itself when the tap is off. A constant drip from the spout when the tap is fully closed is typically down to a worn washer or O-ring. On mixer taps, it can also mean the cartridge has failed.
7. Look for water staining on surfaces below the tap. Yellow or orange staining in the basin or on the worktop below a tap can indicate a slow drip that's been running for some time, even if you haven't noticed it during normal use.

Monthly Maintenance Tasks

Running through a short monthly routine keeps your taps working properly and helps you spot changes quickly. These tasks take around fifteen to twenty minutes across the whole house.

Run every tap in the house. This includes seldom-used ones like the utility room sink or an en suite that doesn't get much use. Taps that sit unused for weeks can develop stiff valves or dried-out seals, which makes leaks more likely when they're eventually turned on.

Check isolating valves under sinks and behind toilets. These small valves - usually a flat-head screw fitting on the supply pipe - should turn a quarter turn smoothly. If they're seized solid, they can't be used in an emergency to cut off the water supply. Our engineers see this a lot in Redruth homes where the plumbing hasn't been touched in years.

Look for lime scale on spouts and aerators. Parts of Cornwall have moderately hard water, and lime scale can block aerators and put extra pressure on tap internals over time. Unscrew the aerator at the end of the spout monthly and rinse it through. If it's badly scaled, soak it in white vinegar for thirty minutes before refitting.

Check the temperature of your hot water taps. If the hot tap is only lukewarm, or if there's a noticeable delay before hot water arrives, it can indicate a problem with your hot water system rather than the tap itself. Note any changes month to month so you have something to report to a plumber if it gets worse.

Test your mains stop tap. Your stop tap - usually under the kitchen sink - should turn off and on without excessive force. If it's completely seized, you can't isolate the supply in an emergency. This is worth checking monthly and flagging to a plumber if it won't move freely.

Annual Professional Checks You Should Book

Some parts of your tap and plumbing system need a trained eye once a year. A plumber visiting Redruth homes will typically charge between 60 and 120 pounds for a general plumbing inspection, which is modest compared to the cost of water damage repairs left to develop unchecked.

Full tap and fitting inspection. A plumber can check all tap types - traditional pillar taps, monobloc mixers, and thermostatic bar mixers - for worn washers, failing cartridges, and loose gland nuts. Replacing a washer costs very little in parts and labour. Ignoring it until the internals fail can mean replacing the whole tap body.

Water pressure check. Mains pressure that's too high puts unnecessary stress on tap washers and seals, causing them to wear out faster than they should. A simple pressure test can confirm whether a pressure reducing valve would help protect your plumbing long term. In most cases, domestic supply pressure should sit between 1 and 3 bar.

Pipework inspection under floors and in voids. In older Cornish homes with suspended timber floors, pipework runs in spaces that are rarely seen. A visual check of accessible voids - or a camera inspection where access is limited - can catch early signs of corrosion or joint failure before they become a major problem.

Drain inspection and clear-out. Slow-draining basins put back-pressure on waste fittings and can eventually cause leaks around the trap. An annual drain inspection and clear-out is a sensible precaution, particularly in homes where lime scale is a known issue.

GoFIX diagnostic review. If you're using Voltrade's GoFIX diagnostic tool to flag issues in your home, an annual review of any recorded warnings with your plumber gives you a chance to address minor problems before they escalate. It's a useful way to carry a running record of your plumbing health into each service visit.

Warning Signs That Need Immediate Attention

Some symptoms mean you shouldn't wait for a scheduled check. Call a plumber as soon as you notice any of the following.

• Water pooling on the floor around or under a tap fitting. This usually means a seal has failed completely and water is escaping at the fitting or supply pipe.
• A sudden spike in your water bill with no obvious explanation. An unseen drip behind a wall or under a floor can waste thousands of litres before you notice any visible signs.
• Brown or rust-coloured water coming from a tap. This can indicate corroded pipework and needs investigating straight away to avoid further contamination of your supply.
• Banging or hammering in the pipes when taps are turned off - commonly known as water hammer. Left unchecked, this can stress pipe joints and fittings and eventually cause them to fail.
• A tap that won't fully close. If a tap won't shut off regardless of how hard you try, the internal mechanism has failed and needs replacing. Running it further risks damaging the tap seat.
• Visible mould or damp patches around tap fittings on walls or ceilings. This suggests water has been escaping for long enough to cause structural moisture problems, which are significantly more expensive to address than the original plumbing repair.

If you're in Redruth and you notice any of these signs, don't leave it over a weekend. Even a few days of water ingress into timber or plaster can cause damage that costs several times more to fix than the original tap repair would have.

Your Maintenance Schedule

A simple calendar makes sure nothing gets missed and gives you a record to refer back to if a plumber asks when you last checked something.

Weekly (two to three minutes)

• Listen for drips from all taps when the house is quiet
• Wipe around tap bases and check for any moisture

Monthly (fifteen to twenty minutes)

• Run all taps, including rarely used ones
• Check isolating valves and the mains stop tap
• Rinse aerators and inspect for lime scale build-up
• Open under-sink cabinets and inspect pipework visually
• Check hot water temperature at all taps and note any changes

Every six months

• Check all tap handles for stiffness, play, or grinding
• Inspect wall surfaces behind and around tap fittings for damp or staining
• Check under baths and behind boxing-in panels if accessible

Annually

• Book a plumber for a full tap and plumbing inspection
• Water pressure test
• Drain inspection and clear-out if needed
• Review any Voltrade GoFIX diagnostic flags with your engineer
• Replace tap washers or cartridges proactively if the tap is over ten years old and hasn't been serviced

Checklist Questions

How do I know if my leaking tap needs a washer or a new cartridge?

The type of tap tells you a lot. Traditional taps with separate hot and cold handles - common in older Redruth homes - typically use rubber washers, which are inexpensive and relatively easy to replace. Modern mixer taps usually use ceramic cartridges instead. If your tap drips from the spout when fully closed, it's likely a washer or cartridge issue. If water is leaking from around the handle or from the base of the spout, an O-ring or gland packing is more probably the culprit. A plumber can confirm which within a few minutes of inspection, so it's worth getting a diagnosis before buying parts.

Can I repair a leaking tap myself or should I call a plumber?

Replacing a washer on a traditional pillar tap is something a confident DIYer can tackle with basic tools, provided you can isolate the water supply first using the isolating valve under the sink or the mains stop tap. However, mixer tap cartridges vary considerably between manufacturers and can be tricky to source and fit correctly without experience. For anything involving corroded fittings, taps in awkward locations, or where the isolation valve is seized, calling a plumber is the sensible route. In Cornwall, a tap repair callout typically costs between 80 and 180 pounds depending on the work involved and the parts required.

How much does it cost to have a leaking tap repaired professionally in Redruth?

For a standard tap washer replacement or cartridge swap, expect to pay between 80 and 150 pounds for a plumber's callout and labour in the Redruth area, with parts on top depending on what's needed. More involved work - such as replacing a tap body completely, addressing corroded pipework behind a fitting, or replumbing under a basin - commonly runs from 150 to 350 pounds. Getting a written quote before work starts is always worth doing. A good plumber will tell you upfront if the repair cost is close to the cost of a full replacement, so you can make the call based on the age and condition of the tap rather than finding out after the work is done.