Pre-Purchase Property Inspections

Roof deterioration and damaged roof details on a Portuguese property

Preparing a Portuguese Property for Winter Rains

Preparing a Portuguese property for winter rains means checking the roof, terraces, drainage, windows and exterior walls before the wet season arrives.

Carmel Margolis

5 days ago6 min read

Comparison of a freshly painted ceiling and a thermal image showing temperature differences during a property inspection in Portugal.

Buying Property in Portugal: Why Fresh Paint Deserves a Second Look

Fresh paint creates a great first impression, but it doesn't always reveal what's happening beneath the surface. Learn what buyers in Portugal should look for before committing to a property purchase.

Carmel Margolis

Aug 315 min read

External window frame showing a gap in the surrounding render that may contribute to window moisture problems in Portugal.

Why Poorly Sealed Windows Cause Window Moisture Problems in Portugal

Window moisture problems in Portugal often start around poorly sealed window frames. Learn how hidden moisture enters walls, causes damp and mould, and how professional inspections can identify the source before costly damage occurs.

Carmel Margolis

Aug 265 min read

External crack at a roof and wall junction on a Portuguese home during a property inspection.

The Truth About Hairline Cracks in Portuguese Homes

Hairline cracks are common in Portuguese homes, but are they harmless or a warning sign? Learn what causes them and when a professional inspection is recommended.

Carmel Margolis

Aug 264 min read

Traditional Portuguese homes showcasing classic architecture and construction in Portugal.

How Are Houses Built in Portugal? What Every Buyer Should Know

Thinking of buying property in Portugal? Learn how Portuguese homes are built, how the climate affects their performance, and what every buyer should understand before making one of life's biggest investments.

Carmel Margolis

Aug 264 min read

Traditional apartment building in Portugal viewed during a property viewing before purchasing a home.

What Should You Look for During a Property Viewing in Portugal?

Viewing a property is more than deciding whether you like the house. Discover what to look for during a property viewing in Portugal, the warning signs to watch for, the right questions to ask, and why identifying hidden defects before you buy can help you make a more informed decision.

Carmel Margolis

Aug 266 min read

A Hidden Thermal Leak Detection in Cascais: A Property Inspection Case

A ceiling with no visible signs of damage revealed an unexpected thermal anomaly during a property inspection. This real case study shows how temperature and humidity readings helped guide the next stage of the investigation.

jeffrey zive

Aug 263 min read

Structural Integrity: What Every Property Owner Should Understand

Structural integrity is one of the most critical aspects of property ownership in Portugal, yet many significant issues remain invisible to the naked eye. From coastal salt-laden air to seasonal moisture and ageing construction, homes in areas like Cascais and Lisbon are prone to hidden deterioration. Often, the root cause is long-term water damage that leads to both compromised structural framing and hidden mould growth. In this guide, we explore the essential relationship

Carmel Margolis

Aug 265 min read

Can Mould Affect Your Health? Make an Informed Property Decision

Discover how subtle surface imperfections mask hidden structural liabilities in Portuguese properties. Learn why cosmetic summer finishes hide critical moisture traps, and how advanced thermal diagnostics protect your investment and family health.

Carmel Margolis

Aug 35 min read

The 5 Most Common Moulds Found in Portuguese Homes

Mould is one of the most common issues found during property inspections in Portugal, but it is usually a symptom rather than the underlying problem. Discover the five most common types of household mould in Portuguese homes, what causes them, and how professional moisture investigations help identify hidden damp before it leads to costly damage.

Carmel Margolis

Jul 276 min read

FLIR thermal camera used for a thermal imaging inspection in Portugal.

Thermal Imaging Inspection: What Can It Tell You About a Property?

Discover how a thermal imaging inspection can reveal temperature patterns linked to hidden moisture, water ingress, insulation concerns and other property issues in Portugal.

jeffrey zive

Jul 224 min read

Building Inspection Cascais: What Does an Inspection Cover?

A building inspection in Cascais can provide valuable insight into a property’s condition. Learn how visual assessment and diagnostic equipment can help identify concerns and highlight areas that may require further attention.

jeffrey zive

Jul 213 min read

Thermal Camera Leak Detection Portugal: Investigating Changes During Water Flow

Thermal camera leak detection in Portugal can help investigate suspected hidden plumbing leaks without immediately opening walls or removing finishes. Learn how changing surface patterns, moisture measurements, and other inspection evidence can help narrow down areas of concern.

jeffrey zive

Jul 212 min read

Damp on walThermal image showing a cooler temperature anomaly on a bedroom ceiling during a property inspection in Cascais.

Thermal Leak Detection Cascais: A Real Inspection Example

A real inspection example showing how thermal imaging and drone photography can help assess suspected hidden water ingress and roof defects in a Cascais property.

jeffrey zive

Jul 202 min read

Cold Water Leak Detection Cascais: Using Thermal Imaging to Investigate Hidden Leaks

Cold water leak detection in Cascais can use thermal imaging to investigate unusual temperature patterns behind walls, floors and tiled surfaces. Discover how thermal findings and moisture measurements can help identify areas requiring further investigation.

jeffrey zive

Jul 202 min read

Exposed cables lying across terracotta roof tiles identified during a drone roof inspection in Portugal.

Drone Roof Inspection Portugal: Benefits of Inspecting a Roof by Drone

A drone roof inspection in Portugal provides a safe and practical way to examine difficult-to-access roof areas. Discover how aerial imagery can document visible defects and support a wider property inspection.

jeffrey zive

Jul 202 min read

Mould Inspection Cascais: Why Moisture Problems Develop in Coastal Homes

Mould growth is often a sign of an underlying moisture problem. Discover how a professional mould inspection in Cascais investigates damp, condensation, ventilation and possible water ingress to help identify the conditions causing mould to develop.

jeffrey zive

Jul 194 min read

Drone image showing the junction between two roof layers and the likely path of water ingress in Cascais.

Drone Roof Inspection in Cascais: Why a Persistent Leak Kept Returning

After repeated repairs failed to stop a leak in a sixth-floor apartment, a drone roof inspection revealed a concealed route for water ingress between two layers of roofing. This Cascais case study shows why the visible signs of a leak do not always reveal where the water is actually entering.

jeffrey zive

Jul 183 min read

Professional property inspection of a villa in Cascais, Portugal.

Villa Inspection Cascais: What Buyers Should Check Before Purchasing

Buying or selling a villa in Cascais involves more than assessing what you can see. A professional home inspection can help identify hidden leaks, damp, structural concerns and other defects before you commit.

jeffrey zive

Jul 173 min read

A high-angle photograph of a tiled balcony floor where several large, brown ceramic tiles have cracked and detached from the surface. The tiles are lifted and broken due to pressure, showing the concrete adhesive beneath where the tiles have failed.

The Mystery of the "Exploding" Balcony Tiles: A Cascais Case Study

When balcony tiles suddenly lift or appear to “explode”, the cause may not be what you expect. This Cascais case study reveals how thermal expansion, missing expansion joints and years of accumulated pressure led to a dramatic case of tile tenting.

Carmel Margolis

Jul 174 min read

Welcome to the AllProperty Blogs & Updates — your resource for property inspection knowledge, practical guidance and real-world insights from inspections carried out across Cascais, Estoril, Sintra and Lisbon. This page brings together information to help homeowners and buyers better understand Portuguese properties and recognise potential problems before they become costly.

Explore blogs covering common issues affecting homes in Portugal, including damp and moisture, mould, poor ventilation, plumbing leaks, roof defects and structural concerns. We also explain how diagnostic tools such as thermal imaging cameras, moisture meters, endoscopes and drone inspections can help identify problems that may not be visible to the naked eye. - for the blog page

Our content draws on real inspection experience, explaining what we find in properties, why defects occur, how moisture can travel and which warning signs homeowners and buyers should look for. Whether you are buying a property, considering an inspection or trying to understand the cause of a damp or leak problem, you'll find clear, practical information to help you make informed decisions.

Browse our latest posts for property inspection advice, thermal imaging examples, leak detection guidance and practical information from the field.

Useful Links

Complete Home Inspections

Leak Detection

Drone Roof Inspections

About Us