The Hidden Water Leak Guide

Think You Have a Water Leak? Here's What to Do Right Now

Water leaks aren't just annoying—they damage your property, inflate bills, and create health hazards like mould. Acting quickly can prevent a minor issue from becoming a costly disaster. This guide will help you identify leaks, take immediate action, and decide when to call the professionals.

⚠️ Emergency Situation?

If you're experiencing active flooding, water near electrics, or structural damage, take immediate action:

  • Turn off your main water supply immediately
  • Switch off electricity at the consumer unit if water is near sockets
  • Call us now for emergency leak detection
📞 07897 016 222

How Serious Is Your Leak?

Click on the scenario that best describes your situation:

EMERGENCY

Call Immediately - 07897 016 222

  • Water gushing, flooding, or pouring through ceiling
  • Water near electrical outlets, appliances, or consumer unit
  • Ceiling bulging or sagging with water weight
  • Burst pipe with continuous flow
  • Water coming through light fittings
  • Major flooding under floors you can hear/see
  • Structural cracks appearing with water
  • Can't stop the water flow

Turn off water & electrics NOW, then call us

URGENT

Call Within 24 Hours

  • Topping up boiler pressure daily or multiple times per day
  • Boiler losing 0.5+ bar pressure per week
  • Need to top up boiler more than twice per year
  • Pressure drops below 1 bar within days of topping up
  • Persistent dripping or running water sounds in walls
  • Damp patches actively spreading or growing
  • Water meter spinning when all taps are off
  • Water bills 30%+ higher than normal
  • Wet patches appearing on walls or ceilings
  • Floor feeling spongy, soft, or bouncy
  • Wallpaper peeling near pipes or radiators
  • Radiators needing bleeding weekly
  • Toilet running constantly (not stopping)
  • Musty smell getting stronger daily
  • Visible mould growth appearing

Don't wait - these get worse fast

MONITOR

Watch & Call If It Worsens

  • Boiler needs topping up once or twice per year
  • Very slow pressure drop over several months
  • Slight musty smell (stable, not worsening)
  • Minor condensation on windows (seasonal)
  • Small damp spot that isn't growing
  • Very occasional drip from overflow after filling tank
  • Minor dampness only after very heavy rain
  • Old water stains that are dry (no active moisture)

Check monthly - call if frequency increases

💡 Not Sure Which Category? According to boiler manufacturers, if you need to top up your boiler more than twice per year, you have a leak that needs investigating. Daily or weekly top-ups indicate an urgent leak losing significant amounts of water. A healthy sealed system should hold pressure for months with minimal loss.

Immediate Actions to Minimise Damage

Emergency Action Checklist

Click each item as you complete it. These steps will help limit damage while you arrange professional help:

Turn Off the Water Supply Find your main stop tap (usually under the kitchen sink or where the water pipe enters your property). Turn it clockwise until it stops. This halts water flow and prevents further damage.
Switch Off Electricity (If Needed) If water is near electrical outlets, appliances, or the consumer unit, switch off power at the main breaker immediately. Never touch electrical equipment with wet hands.
Move Valuables and Furniture Quickly relocate furniture, electronics, and important documents to a safe, dry area. This prevents water damage to your belongings.
Contain the Water Use buckets, towels, or mops to soak up standing water. Place towels or sandbags to prevent water spreading to other rooms.
Document Everything Take photos and videos of all damage for insurance purposes. Note the time, date, and extent of the leak before starting any cleanup.
Ventilate the Area Open windows and use fans to increase airflow. This helps prevent mould growth while you arrange professional leak detection.
💡 Professional Tip from Dickie: "After 30 years finding leaks, I can tell you this: the faster you act, the less damage you'll face. Even a small leak can cause thousands in damage if left for days. Turn off that water supply and call a specialist—don't wait to 'see if it gets worse.'"

Identifying Where Your Leak Is Coming From

Knowing where to look can help you provide useful information when you call us. Here are the most common leak locations:

🚰

Pipes & Plumbing

Look for:

  • Water stains on walls/ceilings
  • Dripping sounds in walls
  • Damp patches behind fixtures
  • Corroded or wet pipework

Common causes: Burst pipes, joint failures, corrosion, freeze damage

🏠

Roofs & Ceilings

Look for:

  • Water stains on ceilings
  • Missing/damaged roof tiles
  • Sagging ceiling areas
  • Drips after heavy rain

Common causes: Damaged flashing, cracked tiles, blocked gutters, poor seals

🪟

Windows & Doors

Look for:

  • Water pooling on sills
  • Peeling paint around frames
  • Damp walls near openings
  • Mould on window frames

Common causes: Failed seals, damaged weatherstripping, poor installation

🏚️

Floors & Foundations

Look for:

  • Wet or warped flooring
  • Musty basement odours
  • Cracks in foundation
  • Puddles in basement

Common causes: Underground pipe leaks, poor drainage, rising damp

♨️

Heating Systems

Look for:

  • Dropping boiler pressure
  • Damp under radiators
  • Wet patches on floors
  • Hissing from pipes

Common causes: Failed valves, corroded pipes, underfloor heating leaks

🚿

Bathrooms & Kitchens

Look for:

  • Damp under sinks
  • Water on floor after showers
  • Soft/spongy flooring
  • Musty smells in cabinets

Common causes: Failed seals, leaking taps, worn waste pipes

Detection Tools and Techniques

While professional equipment gives the most accurate results, here are some DIY methods to help locate a leak:

Visual Inspection Method

What to do: Systematically check all visible plumbing, fixtures, and water-prone areas for signs of moisture.

Look for:

  • Water stains (brown, yellow, or dark patches)
  • Mould or mildew growth
  • Peeling paint or wallpaper
  • Warped or buckled flooring
  • Visible dampness or wet spots

Best for: Obvious leaks, bathroom/kitchen issues, visible pipe damage

Listen for Running Water

What to do: Turn off all taps, appliances, and water-using devices. Wait until the house is very quiet (late evening or early morning works best), then listen carefully.

Listen for:

  • Dripping or trickling sounds in walls or floors
  • Hissing from pipes or radiators (especially near joints)
  • Running water when nothing's in use
  • Gurgling in drain pipes
  • Sounds near stop tap or meter (can indicate supply pipe leak)

Best for: Locating general area of hidden pipe leaks, especially in older properties with copper or lead pipes

Water Meter Test

What to do:

  1. Turn off all water-using appliances and taps
  2. Make sure no one uses toilets, showers, or washing machines
  3. Locate your water meter (usually outside near property boundary)
  4. Write down the exact meter reading or take a photo
  5. Wait 1-2 hours without using any water (overnight works best)
  6. Check the meter again

What the results mean:

  • Meter hasn't moved: No leak detected
  • Meter has increased: You have a leak between the meter and your taps
⚠️ Important: DIY detection methods have limitations. Professional leak detection equipment can find leaks you'll never spot yourself—often without any destructive investigation. If you can't locate the source within 30 minutes, call us rather than risk further damage.

When to Call Professional Leak Detection

Some situations absolutely require professional equipment and expertise. Here's when to call us rather than attempting DIY:

Call a Professional If...

❌ You Can't Find the Source

If you've checked obvious areas but can't locate where water's coming from, professional detection equipment can find leaks you'll never spot yourself—often without any destructive investigation.

📈 The Leak Is Persistent or Growing

Any leak that continues despite your attempts to fix it, or that's spreading to new areas, needs immediate professional attention. What starts small can quickly cause structural damage.

🏚️ There's Structural Damage

Bulging ceilings, warped floors, crumbling plaster, or visible structural issues indicate serious water damage. This requires urgent professional assessment to prevent collapse or further deterioration.

🦠 You Can See Mould Growth

Mould indicates moisture has been present for weeks or months. Beyond the immediate leak, you need professional remediation to prevent health issues and ensure complete drying.

🧱 The Leak Is Behind Walls or Under Floors

Hidden leaks in walls, floors, or underground pipes require specialist detection. Guessing and ripping up floors costs far more than professional pinpointing.

📋 You Need Insurance Documentation

Most home insurance requires professional trace and access reports. We provide detailed documentation with thermal images, moisture readings, and exact leak locations that insurers accept.

Stop Guessing. Start Finding.

Our non-invasive leak detection technology finds hidden leaks without destroying your property.

📞 Call 07897 016 222 Now

Your Leak Action Plan

Follow These Steps

1
Stop the Water
2
Protect Property
3
Document Damage
4
Assess Severity
5
Call Professionals

Final Thoughts: Act Now, Save Later

Water leaks don't fix themselves—they only get worse. What starts as a small drip can quickly become structural damage, mould growth, and thousands in repair bills. But with quick action and professional help, you can minimise damage, save money, and protect your property.

Remember these key points:

  • Act immediately when you spot signs of a leak—turn off water, protect electrics, document everything
  • Don't wait to see if it gets worse—every day increases damage exponentially
  • DIY detection has limits—hidden leaks need professional equipment to find accurately
  • Prevention is cheaper than cure—regular maintenance catches problems before they become emergencies
  • Professional detection saves money—pinpointing leaks precisely prevents unnecessary property damage
Ready to Get Started? Call 07897 016 222 for expert leak detection across Cornwall and Devon. We're here to help—day or night, emergency or scheduled investigation. Let's find that leak before it finds your savings account.