Leaking Tap Repair Guide for Crawley Homes This Summer

Published July 2026 | Leaking Tap Repair

Why This Time of Year Matters for Plumbers in Crawley

Summer is one of the busiest periods for tap-related callouts across Crawley and the surrounding areas. That might sound counterintuitive - most people associate plumbing emergencies with frozen pipes in January - but July and August bring their own set of problems that put real pressure on household fittings.

The main driver is temperature fluctuation. During a heatwave, the pipework inside your walls expands and contracts more than at any other time of year. Over time, this repeated movement loosens compression fittings, wears out rubber washers faster than usual, and causes ceramic cartridges in modern mixer taps to develop hairline cracks. Our engineers see a noticeable uptick in tap drips and spray leaks every summer, particularly in older properties around the Northgate and Bewbush areas where pipework hasn't been updated in decades.

There's also the water usage factor. Gardens get watered daily, outdoor taps run constantly, and households use the kitchen and bathroom more during warmer months. All of that increased flow puts more mechanical stress on tap components that might already be wearing thin. A washer that's borderline in April will almost certainly fail by mid-July under that kind of load.

Finally, and perhaps most importantly, summer holidays mean properties are sometimes left unattended for weeks at a time. A slow drip that was just annoying in June can become a significant water damage problem by the time you return from two weeks away. If you're planning a holiday and you've noticed any leaking, even a minor one, it's worth sorting before you leave.

The Problems We See Most Often Right Now

Across our Crawley callouts this summer, there are a handful of fault types that come up repeatedly. Understanding which one applies to your tap helps you explain the issue clearly and gives you a realistic idea of what the fix will involve.

Worn tap washers are the single most common cause of a dripping tap in older homes. Traditional pillar taps - the kind with separate hot and cold handles - use a rubber washer that presses against a brass seat to stop water flow. When you turn the tap off, that washer takes the full force of the water pressure. After years of use, it perishes, cracks, or simply flattens out and stops forming a proper seal. The result is a steady drip from the spout even when the tap is fully closed. Replacing a washer is typically the fastest fix a plumber can do - it commonly takes under an hour and costs between 60 and 120 pounds including parts and labour.

Failed ceramic cartridges are the equivalent problem in modern mixer taps. Most single-lever kitchen and bathroom mixer taps made in the last 15 years use a ceramic disc cartridge rather than a rubber washer. These are more durable, but they're not indestructible. Grit in the water supply, limescale build-up (West Sussex sits in a moderately hard water area), and thermal expansion can all cause ceramic discs to crack or jam. When a cartridge fails, you'll typically notice either a drip from the spout or water leaking from around the base of the handle. Cartridge replacement typically costs between 80 and 160 pounds, depending on the tap brand and cartridge specification.

O-ring failure around the spout is another common summer fault. The O-ring is a small rubber seal that sits around the base of a rotating spout - common on kitchen mixer taps. When it perishes, water seeps out around the base of the tap body rather than from the spout. This one's easy to miss because the leak often runs down behind the sink and only becomes obvious when there's damp in the cabinet underneath. If you've noticed unexplained moisture under your kitchen sink this summer, an O-ring is a likely culprit.

Loose gland nuts and packing are less common but do appear on older taps, particularly in Crawley properties built before the 1990s. The gland nut sits above the tap mechanism and, when loose, allows water to creep up around the spindle and out through the top of the tap head. Tightening or repacking the gland is a minor repair that a plumber can usually handle in under 30 minutes.

Preventive Steps You Can Take This Week

Not every leaking tap needs an emergency callout. There are several checks you can do yourself to assess the situation and, in some cases, buy yourself time while you arrange a repair.

1. Turn the tap off firmly and listen. If a steady drip continues after you've closed the tap as far as it goes, the internal seal is failing. Note whether the drip comes from the spout (washer or cartridge) or from around the tap body (O-ring or gland).
2. Check your stop tap. Find your internal stop tap - usually under the kitchen sink or where the water main enters the property - and make sure it turns freely. If it's stiff or seized, don't force it. A seized stop tap means you can't shut off the water supply in an emergency, which is a problem in its own right. Let your plumber know so they can address it during the visit.
3. Check the cabinet under the sink. Open the doors, clear out any cleaning products, and look for signs of moisture - water staining, swollen chipboard, or a musty smell. Even a slow drip will cause long-term damage if left untreated. If you see active water, put a towel down and keep an eye on it.
4. Run the Voltrade GoFIX diagnostic tool. If you're not sure what you're dealing with, GoFIX can help you identify the fault type based on your symptoms - where the water is appearing, whether the tap is hot or cold, and what type of tap you have. It's a useful first step before booking an engineer and can help you avoid paying for a more extensive diagnosis when the fix is minor.
5. Photograph the tap before the engineer arrives. A photo of the tap type, handle style, and any visible leak location helps us identify the likely cartridge or washer specification in advance. Many cartridges are brand-specific - taps from manufacturers like Grohe, Hansgrohe, or Bristan use proprietary parts that we may need to order. Getting a photo sorted early can mean same-day parts availability rather than a return visit.
6. Don't use PTFE tape as a long-term fix. It's tempting to wrap the thread on a leaking fitting with PTFE tape to slow a drip. It sometimes works short-term, but it doesn't address the underlying fault and can make the repair more complicated when a plumber eventually attends.

Emergency Signs - Do Not Wait on These

Most leaking taps are a nuisance rather than an emergency. But there are specific situations where you should call a plumber the same day rather than waiting for a convenient appointment slot.

Water appearing in places it shouldn't be. If a tap leak is feeding water into a wall cavity, under floorboards, or behind kitchen units, the hidden damage can escalate quickly. Timber joists and chipboard units don't tolerate prolonged moisture well, and if water reaches electrical wiring the situation becomes actively dangerous. If you see water staining on walls or ceilings near a tap fitting, call immediately.

A drip that becomes a trickle or flow. Some tap faults deteriorate suddenly. A worn washer that's been dripping for weeks can fail completely if the rubber breaks up, turning a manageable drip into a constant flow you can't stop by turning the tap off. If this happens, turn off your stop tap and call a plumber urgently.

Hot water dripping from the spout constantly. A continuously dripping hot tap isn't just a water waste issue - it puts unnecessary load on your boiler or hot water cylinder and can affect its performance and efficiency over time. In properties around Crawley running combination boilers, a hot tap that won't fully close can cause the boiler to fire up repeatedly throughout the day, increasing wear.

Visible corrosion on pipework near the tap. Green or white deposits on copper or brass fittings, or orange rust staining on steel components, indicate that corrosion is already underway. Corroded fittings are at greater risk of failing entirely. Don't leave these.

Preparing for the Next Season

Once your summer tap repair is done, autumn is the next concern for Crawley homeowners - and the preparation starts now.

Outdoor taps are the priority. Garden taps in West Sussex typically get their last heavy use in September before being left dormant through winter. If your outdoor tap has been dripping this summer, a leaking outdoor tap that goes unrepaired before the first frost can crack the body of the fitting or split the connecting pipework inside the wall. Replacing an outdoor tap body and internal pipework typically costs between 100 and 200 pounds - considerably more than a routine washer replacement. Get it fixed while a plumber is already attending.

It's also worth having your plumber check the condition of the isolation valves under your sinks and the main stop tap while they're on site. These valves are often ignored for years and can seize up from disuse. A seized isolation valve means you can't shut off water to a single tap without cutting off the whole property - a significant problem if you develop a fault mid-winter.

If you've had more than one tap fault this year across your Crawley property, it may be worth discussing a broader survey of your tap cartridges. In properties where all the taps were fitted at the same time - common in new builds and post-renovation homes - the cartridges tend to reach the end of their service life together. Proactive replacement across all taps in one visit is usually more cost-effective than repeated individual callouts through the year.

Seasonal Questions from Crawley Homeowners

How much does it typically cost to fix a leaking tap in Crawley?

The cost depends on the tap type and the nature of the fault. A simple washer replacement on a traditional pillar tap commonly comes to between 60 and 120 pounds including parts and a plumber's labour. Ceramic cartridge replacement in a modern mixer tap typically falls in the 80 to 160 pound range. If the tap body itself is corroded or cracked and needs full replacement, expect to pay between 120 and 280 pounds including the new tap unit. Most callouts in Crawley also carry a standard call-out fee, typically between 50 and 90 pounds, which is usually absorbed into the total job cost.

Can I replace a tap washer myself, or do I need a qualified plumber?

Replacing a tap washer is technically a DIY task on traditional pillar taps if you're comfortable isolating the water supply and have the right tools. That said, there are a few things that trip people up - seized stop taps, incorrect washer sizing, or discovering the tap seat is also damaged. Ceramic cartridge replacement is trickier because cartridges are often brand-specific. Getting the wrong size cartridge means a wasted trip to the merchant and an ongoing leak. If you're not confident, the cost of a plumber is usually worthwhile to avoid turning a minor job into a bigger one.

Why is my tap still dripping after I've already had it repaired?

This is more common than you'd think, and it usually comes down to one of three things. First, the tap seat may be pitted or eroded - the metal surface the washer presses against - meaning a new washer still can't form a proper seal. The seat can sometimes be reground, or the tap may need replacing. Second, the replacement washer might be the wrong size or material. Third, in hard water areas like parts of West Sussex, limescale can build up inside the tap mechanism and prevent the new washer from seating correctly. If a repair hasn't held, ask your plumber to inspect the seat and check for scale accumulation.

How do I know if my outdoor tap in Crawley survived the winter without damage?

Run the outdoor tap and check for water appearing at the connection point inside the house, not just outside. Frost damage typically cracks the internal pipework where it passes through the wall, so you might see the tap working outside while water is quietly leaking into the wall cavity. Also check for any visible deformation of the tap body itself, and test whether the tap closes fully and cleanly. Any dripping after closure, weeping from the backplate, or discolouration around the wall fitting should be looked at by a plumber before the tap is used heavily again.