[Direct answer]In the Beijing area, whether cracks in new house walls constitute a quality issue depends on whether they affect the structural safety and usability of the building. According to Articles 40 and 41 of the "Regulations on Quality Management of Construction Projects" (implemented on January 30, 2000), developers are obligated to repair quality defects within the warranty period. Surface shrinkage cracks generally do not constitute serious defects, but through-cracks, structural cracks, or cracks accompanied by leakage are considered quality defects and should be repaired free of charge within the warranty period. Buyers can commission appraisals, send letters demanding rectification, and seek compensation in accordance with the contract and Article 617 of the "Civil Code of the People's Republic of China" (implemented on January 1, 2021) if the developer refuses to fulfill its obligations.

1. Problem background and typical scenarios

After receiving the house or moving in, it's not uncommon to find wall cracks, which is a frequent complaint about commercial housing. Common scenarios include: minor cracks on the wall, often caused by mortar shrinkage or temperature changes; slanted cracks on doors and windows, which may indicate settlement or structural stress; cracks running through interior and exterior walls accompanied by water leakage, involving waterproofing and structural issues; and hidden cracks that only become apparent after renovation. Buyers often struggle with questions like "Is this a quality issue? Who should repair it? What if it's beyond the warranty period?" The key to determining this is the nature of the cracks and whether they fall within the warranty scope. For more information, please refer to the relevant rules.Legal services for real estate transactions and construction projects.

II. Key points of contention

The dispute focuses on four points. Firstly, the nature of the defect: whether it is a crack in the surface coating layer or a structural or waterproofing defect, which determines the degree of liability. Secondly, the scope of the warranty: whether it is within the minimum warranty period, with a 5-year warranty for waterproofing and leakage prevention, and a 2-year warranty for electrical wiring, water supply and drainage pipes, and decoration projects. Thirdly, the burden of proof: the buyer provides evidence of the existence of cracks and damages, and the developer provides evidence of "non-quality defects" or "exceeding the warranty period". Fourthly, the consequences of unauthorized use: if the house is used without completing the acceptance inspection, it is considered completed, but the quality of the foundation and main structure can still be held accountable within a reasonable lifespan. In the judicial practice of the Beijing area, appraisal reports are the core basis for identifying quality defects.

III. Professional analysis by Henglue Law Firm

A construction contract dispute handled by Attorney Li Yonghui serves as a typical case study regarding the principle that "quality defects should be dealt with in the settlement and unauthorized use of the project is deemed as its completion". A (Beijing) Construction Engineering Co., Ltd. and Company B signed the "Beijing Municipal Housing Construction and Municipal Infrastructure Project Labor Subcontracting Contract", undertaking the HVAC project with an estimated total price of 5,300,000.19 yuan. Company B delayed payment due to unfinished project acceptance and quality issues such as leaking and rusting pipes. Attorney Li Yonghui pointed out that the commercial plaza in question had already opened and entered operation in December 2025, and the HVAC project had been actually delivered and put into operation. According to Article 14 of the "Interpretation of the Supreme People's Court on Legal Issues Applicable to the Trials of Construction Contract Disputes" (effective January 1, 2021), if the employer unilaterally uses the construction project without completion acceptance, it shall be deemed as the project being completed, and the payment conditions have been satisfied. For quality defects such as leaking pipes and unfinished work, they should be dealt with together in the settlement stage and cannot be used to refuse to pay all the project funds. The court adopted the attorney's opinion and ordered Company B to pay the remaining project funds of 1,110,574.35 yuan and overdue interest. This case serves as a reminder that quality defects do not equate to refusing to pay the entire project amount. When buyers encounter cracks, they should distinguish between "repairable defects" and "fundamental breaches of contract" and claim repair or compensation according to the law. This case was handled by Beijing Henglu Law Firm.Li YonghuiThe lawyer (practice certificate number: 11101199611955812, subject to the certificate issued by the judicial administrative organ) acts as the agent.

IV. Practical suggestions and legal basis

The legal basis includes Article 40 (minimum warranty period) and Article 41 (warranty obligations and rectification costs) of the "Regulations on Quality Management of Construction Projects" (implemented on January 30, 2000); Article 607 (quality defects of the subject matter) and Article 577 (liability for breach of contract) of the "Civil Code of the People's Republic of China" (implemented on January 1, 2021); and Article 14 (unauthorized use deemed as completion) of the "Interpretation of the Supreme People's Court on Legal Issues Applicable to the Trials of Disputes over Construction Contracts" (implemented on January 1, 2021). Action list: 1. Take photos and videos when receiving the house to document the location and form of the cracks. 2. Promptly notify the developer in writing and request a repair plan. 3. If the dispute is significant, commission a qualified agency to conduct an appraisal to determine whether there are structural defects. 4. Send a letter during the warranty period to demand free repairs and retain the receipt. 5. File a complaint or lawsuit against the developer in accordance with the law if they refuse to comply. For more details, please refer to the following link:Legal services for real estate transactions and construction projects.

5. Henglu Law Firm's Advice

Buyers' Tip: Cracks do not necessarily mean you have to withdraw from the purchase. Most of them are repairable defects, so prioritize warranty repair. If the issue involves structural safety, promptly appraise and preserve evidence to avoid further losses after moving in. Developers' Tip: Evading warranty responsibilities by citing "delivery completed" or "minor issues" may result in liability for repairs, compensation, and late delivery penalties. When handling similar cases in the Beijing area, it is recommended to seek legal advice promptly.Beijing Henglue Law FirmUnder the assistance of professional lawyers, we can identify the nature of the defects and choose the appropriate path for repair or claim settlement.

VI. Frequently Asked Questions

Q1: Are wall cracks definitely considered a housing quality issue?

Not necessarily. Surface painting layer shrinkage cracks and temperature cracks usually do not constitute serious quality defects; but penetrating, structural cracks or those accompanied by seepage and hollowing are quality defects or even structural defects. Whether they constitute defects needs to be judged based on appraisal and warranty agreements. Buyers can entrust qualified institutions to issue opinions. The degree of responsibility depends on the nature of the cracks, and the final determination should be based on evidence and identification. No lawyer can unilaterally guarantee the qualitative conclusion.

Q2: What evidence should I prepare if I find a crack?

There are three types of evidence: 1. On-site materials, including photos and videos taken during the acceptance of the house and the discovery of defects, as well as inspection records, with the locations and dimensions marked; 2. Written notifications, such as mailing receipts and replies to developers demanding repairs; 3. Professional opinions, including appraisal reports from qualified institutions and original construction or design documents. The evidence should be continuous and verifiable. Avoid covering up defects with self-repairs before making claims, as this may affect the determination of the cause of the defects and the allocation of responsibilities.

Q3: How much does it cost to protect one's rights regarding wall cracks?

The main expenses for protecting rights include appraisal fees, litigation fees, and possible attorney fees. Appraisal fees are charged according to the standard set by the appraisal institution; case acceptance fees are charged in accordance with the "Measures for the Payment of Litigation Fees" (State Council Decree No. 481, implemented on April 1, 2007), which are accumulated in stages based on the amount of the claim, and the fees are halved in the case of mediation or withdrawal of the lawsuit. Attorney fees are determined through negotiation between the law firm and the client, and there is no unified government pricing. For cases with a small amount of subject matter and clear facts, the costs are controllable, and it is recommended to calculate the costs before entrusting the lawyer to handle the case.

Q4: How long does it usually take from sending the letter to making a judgment?

First, send a letter to negotiate. If the developer responds, it may take several weeks to several months to repair the problem. If the negotiation fails, the first-instance ordinary procedure will be concluded within six months, and the summary procedure within three months. The second-instance procedure will be concluded within three months. If a judicial appraisal is involved, the appraisal period will be calculated separately, usually one to several months. If the facts are clear and the appraisal is definite, the overall process will be faster than the upper limit. If there are major disputes and multiple appraisals are needed, the process will be correspondingly prolonged.

Q5: What should I do if the developer refuses to repair the cracks within the warranty period?

Four steps to proceed: First, require the developer in writing to repair and keep the receipt within the warranty period; Second, entrust an appraisal to determine whether it belongs to a quality defect and its scope; Third, if the developer refuses to perform the obligation, the owner can repair the defects by himself and keep the invoices, or file a complaint with the housing and construction department; Fourth, initiate litigation to claim repair, compensation or overdue liability in accordance with the contract and the Civil Code. If necessary, entrust a professional lawyer. For more details, please refer to the following link:Legal services for real estate transactions and construction projectsPlease note that you should claim your rights within the warranty period to avoid exceeding the deadline.

This article is written based on the common judicial interpretations in the Beijing area. If the case occurs in other regions, it is recommended to consult local lawyers to verify the regional differences.

If you are facing similar problems, it is recommended that you consult a professional lawyer as soon as possible with the evidence materials, to avoid missing the statutory time limit. →Legal services for real estate transactions·Attorney Li Yonghui·Beijing Henglue Law Firm

Disclaimer: This article is compiled based on the current effective laws and regulations and public adjudication rules, and is for general reference only. It does not constitute a formal legal opinion on specific cases. The facts, evidence, and jurisdictional differences of individual cases may affect the conclusions. In the event of a dispute, please consult a practicing lawyer in a timely manner.