10 Common Problems Found During Property Surveys

Posted on: 22 July 2026

10 Common Problems Found During Property Surveys

Why Are Property Surveys Important?

Buying a property is one of the biggest financial commitments most people will make. A home may appear to be in good condition during a viewing; however, many issues aren't immediately visible to the untrained eye. A professional property survey provides an independent assessment of a property's condition, helping you identify any defects, maintenance issues or potential risks before you commit to the purchase.

Property surveys are typically carried out after your offer has been accepted but before you exchange contracts. This allows you to make informed decisions, budget for any necessary repairs and potentially renegotiate the purchase price, considering any defects.

Whatever the property you’re buying, a survey offers valuable peace of mind and a clearer understanding of its overall condition.

10 Common Problems Found During Property Surveys

No property is completely free from defects, particularly older homes. However, identifying issues early can save time, money and stress in the long run. Here are ten of the most common problems found during property surveys.

1. Damp

Damp is one of the most frequently reported issues during property surveys. It can be caused by leaks, poor ventilation or condensation, and if left untreated may lead to mould growth, timber decay and respiratory issues. A survey can help identify the likely cause and whether specialist treatment is needed.

2. Roof Defects

Common issues include slipped or broken tiles, blocked gutters, damaged flashings and signs of water ingress. If roof defects go untreated, this can lead to damp, timber decay which can be costly to repair.

3. Structural Movement and Cracking

Cracks in walls aren't always a cause for concern, but they shouldn't be ignored. Surveyors assess the size, location and pattern of cracking to determine whether it's likely to be cosmetic or a sign of structural movement that requires further investigation.

4. Timber Decay

Timber elements such as roof structures, floor joists and lintels can be affected by wet rot, dry rot or wood-boring insects. These issues are often linked to excess moisture, making it important to identify both the damage and the cause to maintain structural integrity.

5. Poor Maintenance

General wear and tear is common, particularly in older properties. Defective guttering, damaged external joinery and worn sealants are all regularly identified during surveys. While these issues may seem minor individually, they can lead to more significant problems if left unresolved.

6. Electrical Concerns

Surveyors don't test electrical installations, but they do identify visible signs that suggest further inspection may be required. Older units, exposed wiring or evidence of DIY electrical work may all prompt a recommendation for an Electrical Installation Condition Report (EICR).

7. Plumbing and Heating Issues

Visible leaks, ageing pipework, poor water pressure and ageing heating systems are often recognised. Where appropriate, surveyors may recommend further inspection by a plumber or heating engineer.

8. Insulation and Energy Efficiency

Many older homes don't meet modern energy efficiency standards. Surveys often identify inadequate loft insulation, single glazing, draughts and other factors that could energy performance and running costs.

9. Drainage Problems

Blocked drains or evidence of previous leaks can be highlighted during a survey. If more detailed investigation is required, a specialist CCTV drainage survey may be recommended.

10. Alterations Without Evidence of Approval

Extensions, loft conversions and structural alterations may have been carried out by previous owners without the necessary Building Regulations approval or planning permission. A survey can flag these concerns, allowing your solicitor to make further enquiries before the purchase progresses.

Which Survey do you need?

We offer various Surveys dependent on your requirements and the nature of the property.

Compare reports below:

If you're unsure which survey is right for your purchase, our qualified surveyors can advise based on the property's age, construction type and overall condition.

Final Thoughts

No property is perfect, and even newer homes can have defects that aren't immediately obvious during a viewing. The purpose of a survey isn't to discourage you from buying a property, it's to ensure you know what you’re purchasing and don’t get any unwanted, costly surprises later.

By identifying issues before you exchange contracts, a survey can help you budget for future repairs, avoid unexpected costs and potentially renegotiate price if significant defects are discovered. Ultimately, it provides reassurance that you're making an informed investment.

How We Can Help

At Maggs & Allen, our experienced RICS-qualified surveyors provide clear, independent advice to help buyers purchase with confidence. Whether you're buying your first home, investing in a period property or purchasing a property that requires renovation, we offer a range of professional survey services tailored to your needs.

From Level 2 Surveys for more modern homes to comprehensive Level 3 Building Surveys for older and more complex properties, our team will recommend the most appropriate survey and provide a detailed, easy-to-understand report.

If you're planning to buy a property and would like expert advice on getting the right survey for you, get in touch with Maggs & Allen today on 0117 973 4049.

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