Leak Detection Tips

Property Leak Survey Lanzarote | Leakbusters

2026-03-068 min read· Leak Busters Lanzarote Team
Property Leak Survey Lanzarote | Leakbusters

Why You Need a Leak Survey Before Buying Property in Lanzarote

Purchasing a home in Lanzarote is one of the most exciting decisions you can make. Whether you're looking at a holiday let in Puerto del Carmen or a permanent residence in Tías, the island offers something genuinely special. But beneath those whitewashed walls and sun-baked terraces, there are risks that most buyers never think to check — and they can cost a fortune.

A standard building survey will tell you about the roof, the walls, and the structural condition of the property. What it won't tell you is what's happening inside the pipework buried under your floors and terrace. That's where buyers get caught out.

We carry out professional leak detection surveys across Lanzarote, and we see the same story play out repeatedly: a buyer moves in, receives a water bill that makes no sense, and then discovers a plumbing problem that was there long before they arrived.

Why Lanzarote Properties Carry a Higher Risk

The island's geology is unlike anywhere else in Europe. The volcanic substrate shifts over time, and that movement puts stress on buried pipework. Joints crack. Connections perish. A pipe that was holding fine when the property was last occupied may have been slowly failing for months.

The soil here is also highly porous, which means water can escape underground without any visible sign on the surface. A pool could be losing hundreds of litres a day, a mains supply pipe could have a significant fracture, and you would walk around the property on a viewing and see nothing out of the ordinary. The ground simply absorbs it.

Add to this the age of much of the island's housing stock — many villas were built in the 1980s and 1990s with pipework that is now well past its expected service life — and the case for a pre-purchase leak survey becomes very clear.

Cross-section diagram of a Lanzarote villa terrace showing cracked underground water supply pipes leaking beneath volcanic soil with no visible signs on the surface

What a Standard Survey Misses

A structural surveyor does a thorough job within their scope, but their scope does not include the plumbing. There are three areas in particular where problems hide:

Buried Supply and Pool Pipes

The pipework running beneath your terrace and garden is invisible to the naked eye. Acoustic detection equipment and tracer gas testing can locate fractures and joint failures without lifting a single tile.

Internal Drainage Condition

CCTV drain surveys allow us to inspect the inside of your waste pipes for root intrusion, collapsed sections, or displaced joints. These issues rarely cause a problem until the property is in full use — at which point they become your problem, not the previous owner's.

Concealed Moisture Behind Walls

Thermal imaging reveals cold patches behind plasterwork and paintwork that indicate active moisture. A freshly decorated property can look immaculate while hiding a damp problem that has been there for years.

The Financial Case for Acting Before You Complete

Couple reviewing property leak detection report and plans with estate agent in a Lanzarote villa

A leak survey is not an additional expense — it is a negotiating tool. If we find a problem, you have documented evidence to take to the vendor. You can request a price reduction to cover the cost of repairs, or make the repair a condition of the sale. Either way, you are protected.

If we find nothing, you complete the purchase with confidence. That peace of mind has real value when you are committing to a significant investment.

Professional leak detection survey report with thermal imaging results and property keys on desk

The survey itself is straightforward. We carry out a free leak confirmation test first, checking whether the water meter shows any movement when all outlets are closed. If that confirms a potential issue, we proceed to a full non-invasive survey using acoustic detection, tracer gas, and thermal imaging as required. You receive a detailed photographic report that is suitable for your solicitor, architect, or mortgage lender.

How to Arrange a Survey Before You Complete

The key is timing. You need to book the survey before your cooling-off period expires so that you have the option to renegotiate or withdraw if a significant problem is found.

Contact us as soon as you have an accepted offer. We will arrange the survey around your timeline and work with your legal team if required. Our reports are clear, professional, and written in plain English — no technical jargon, just the facts you need to make an informed decision.

Get in touch today and protect your investment before you sign.

Frequently Asked Questions

Do I need a leak survey before buying a property in Lanzarote?

Yes. A standard building survey does not cover buried pipework, internal drainage, or concealed moisture. A professional leak survey uses acoustic detection, tracer gas, and thermal imaging to find problems that could cost thousands to repair after purchase.

What does a pre-purchase leak survey include?

It includes a free leak confirmation test via the water meter, followed by acoustic detection for buried pipes, CCTV drain surveys for internal drainage, and thermal imaging for concealed moisture. You receive a detailed photographic report suitable for your solicitor or mortgage lender.

Why are Lanzarote properties at higher risk of hidden leaks?

The volcanic substrate shifts over time, stressing buried pipework. The highly porous soil absorbs escaping water without visible surface signs. Many villas built in the 1980s and 1990s have pipework well past its expected service life.

When should I book the leak survey during the purchase process?

Book the survey before your cooling-off period expires so you have the option to renegotiate or withdraw if a significant problem is found. Contact LeakBusters as soon as you have an accepted offer.

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