10 Red Flags Your House Survey Might Reveal
10 Red Flags Revealed in House Surveys
A house survey can reveal many issues that might affect your decision to buy or the price you're willing to pay. Here are the 10 most common red flags surveyors identify.
1. Subsidence and Foundation Issues
Subsidence occurs when the ground beneath a property shifts, causing cracks and structural damage. This is a serious issue that can cost thousands to repair. Signs include diagonal cracks in walls, sticking doors and windows, and sloping floors. If your surveyor suspects subsidence, you'll likely need a specialist engineer's report.
2. Damp and Moisture Problems
Damp is one of the most common issues found in surveys, particularly in older properties. Rising damp from the ground, penetrating damp from water ingress, or condensation issues all require treatment. Left untreated, damp causes structural damage and health problems. Expect remedial costs of £1,000-5,000+ depending on severity.
3. Roof Damage and Deterioration
A compromised roof is a major expense. Common issues include missing or damaged tiles, rotting timbers, and failed flashings. A new roof can cost £5,000-15,000+, so this is a significant finding that may affect your offer.
4. Asbestos Contamination
Asbestos was commonly used in older buildings but is now banned due to serious health risks. If asbestos is identified, professional removal is required, costing £2,000-10,000+ depending on extent.
5. Electrical Safety Issues
Outdated wiring, no earth connections, or overloaded circuits are hazards. A qualified electrician will need to assess and potentially rewire sections or the entire property. This can be a significant expense.
6. Plumbing and Drainage Problems
Issues such as corroded pipes, broken drains, or poor water pressure are common in older properties. Drainage problems in particular can be expensive, sometimes requiring excavation and replacement of underground pipes costing £3,000+.
7. Poor Insulation
Inadequate insulation leads to high heating bills and condensation. While insulation can be improved, it's a sign you'll have higher ongoing costs. Cavity wall or loft insulation costs £500-2,000.
8. Rot and Timber Decay
Dry rot and wet rot are serious structural issues. Wet rot is more common and usually caused by damp, while dry rot spreads rapidly and can destroy wooden structural elements. Treatment costs range from £1,000-5,000+ depending on extent.
9. Cracks and Structural Movement
While minor cosmetic cracks are common, larger or diagonal cracks can indicate structural movement or subsidence. These warrant further investigation by a structural engineer.
10. Evidence of Previous Flooding or Poor Drainage
Signs of historical flooding, poor guttering, or inadequate drainage are red flags. Properties at risk of flooding will be difficult to insure and resell, and suffer repeated damage.
What to Do If Your Survey Reveals Issues
If your surveyor identifies red flags, you have several options:
- Renegotiate the price based on remedial costs
- Ask the seller to fix issues before completion
- Get specialist quotes for repairs
- Walk away from the purchase if issues are too serious
Final Thoughts
Red flags in a house survey shouldn't necessarily mean you don't buy the property, but they should be taken seriously. They give you negotiating power and help you make an informed decision about your investment.