How to check the quality of second-hand houses? ——Comprehensive analysis of the guide to avoiding pitfalls in buying a house
With the active second-hand housing market, how to judge the quality of houses has become a core concern for home buyers. This article combines hot topics and industry data across the Internet in the past 10 days to provide structured analysis from dimensions such as structure, decoration, and environment to help you avoid potential risks.
1. Key points for inspection of house infrastructure
| Check items | Qualification standards | Risk warning |
|---|---|---|
| Wall cracks | No structural cracks (width ≤ 0.3mm) | Diagonal cracks may indicate foundation problems |
| Ground flatness | Drop within 2m ≤ 3mm | Local depression needs to be checked for water pipe leakage |
| Door and window opening and closing | Tightly closed without deformation | Be wary of signs of water seepage in window frames |
2. Concealed engineering inspection data reference
| System type | key indicators | Detection method |
|---|---|---|
| Circuit system | Wire diameter ≥2.5mm² (lighting) | Phase detector for home inspectors |
| drainage system | Drainage slope ≥ 2% | Water injection test drainage speed |
| waterproofing project | Closed water test for 48 hours | Check for leaks in downstairs ceiling |
3. Top 5 recently searched house quality issues
| Question type | Proportion | Typical performance |
|---|---|---|
| Hollow wall | 34.7% | There is a hollow sound when struck |
| Pipeline aging | 28.1% | Rusty water/insufficient water pressure |
| Circuit chaos | 19.5% | Multiple circuit common circuit breaker |
4. List of Professional Home Inspection Tools
It is recommended that home buyers bring: an infrared level (to check the flatness of the floor), a humidity detector (to check for water seepage in the wall), an electrical socket (to test circuit safety), and a tape measure (to verify the area). Professional home inspection teams also use thermal imaging cameras to detect defects in insulation.
5. Key items of concern for houses of different ages
| Building age range | Core hidden dangers | coping strategies |
|---|---|---|
| within 5 years | Environmental protection of decoration materials | Request a formaldehyde test report |
| 5-10 years | Waterproof layer failure | Focus on checking the back surface of the bathroom |
| More than 10 years | Pipeline corrosion | Request modification records |
6. Legal risk prevention suggestions
1. Check the mortgage registration information on the addendum page of the real estate certificate
2. Require the seller to sign a "House Condition Statement"
3. Check illegal construction records through the official website of the "Housing and Urban-Rural Development Committee"
4. Re-inspection after rainy days can reveal 90% of water seepage problems
Through systematic quality assessment, combined with professional agency inspection reports, the risk of second-hand housing transactions can be effectively reduced. It is recommended that home buyers reserve 1%-2% of the total house price as a quality deposit, and pay the balance after completing all inspections.
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