Nightmare after handing over the house: Why is the house I just bought leaking?
In the greater Taipei area, the transaction volume of historic houses and old apartments has remained high all year round. Many buyers have spent their life savings to buy medieval houses in Banqiao, Zhongyonghe or the elite districts of Taipei City. However, the most devastating house purchase dispute is that within just one or two months after the house was handed over and moved in, cancer was discovered on the outer wall of the bathroom, water began to drip from the ceiling, and even complaints from neighbors downstairs that water was leaking into their home. At this time, when the buyer contacts the previous owner or real estate agent, the other party will often take out the contract and point to the "hand over the house as is" clause written on it, claiming that it will not be responsible for any repairs. Is it true that the buyer can only admit that he is unlucky and spend hundreds of thousands of dollars to repair the water pipes out of his own pocket? This is actually a huge misunderstanding in law. Taiwan's Civil Code has a very complete "defect warranty liability" protection mechanism for hidden defects in housing sales.
Civil Law Property Defects Guarantee: The Seller’s No-Fault Legal Liability
According to Article 354 of Taiwan’s Civil Code, the seller shall bear the “property defects warranty liability” for the house sold, which means that the seller must guarantee that when the house is transferred to the buyer, there will be no defects that destroy or reduce its value, or reduce its intended utility in the contract. Water leakage seriously affects the quality of living and the value of assets, and is undoubtedly a major defect.
The defect warranty is the seller's "no-fault liability": This means that regardless of whether the previous owner "knew that the house was leaking" when the house was handed over, as long as the buyer can prove that "the leakage factor existed before the house was handed over," the former owner must bear the responsibility according to law. The buyer can request a reduction in the purchase price and damages according to the law. If the leakage is extremely serious, he can even ask to terminate the contract (refund after check-out).
The golden time limit for claiming rights: two time periods in Article 365 of the Civil Code
If the buyer discovers that the house is leaking, he must claim his rights from the seller within the time limit specified by law. Once the time limit is exceeded, the law will no longer protect him:
Time limit 1. Notify immediately after discovery and exercise rights within "six months" (exclusion period): The buyer should notify the seller "immediately" if leaks are found after inspecting the house according to normal procedures (for example, when handing over the house). After notifying the seller, the buyer's right to claim a reduction in price or to terminate the contract must be exercised in accordance with the law "within six months after notification." When you discover a water leak, do not just communicate verbally with the landlord or previous owner through messaging software. Be sure to immediately entrust a professional plumber to issue a diagnostic report on the condition of the house, and send a "certificate of deposit" letter to the seller, formally retaining the notification date, and file a lawsuit or reach a settlement within six months. Otherwise, the rights will be extinguished once the statute of limitations expires.
Time limit 2. Within "five years" after handing over the house: This is the longest time limit. No matter when the buyer discovers the leak, as long as it exceeds five years from the date of handing over the house, the seller's liability for defects will be automatically waived.
Breaking the myth of liability exemption: When will the “present housing delivery” expire?
Many sellers will add clauses such as "the buyer agrees to hand over the house in its current condition, and the seller is exempt from warranty liability for water leakage defects" in the sales contract. Legally, although this type of exemption covenant is generally valid, the seller is still responsible if:
According to Article 366 of the Civil Code,. For example, the previous owner knew that the ceiling in the living room would leak every time it rained heavily, but he deliberately hired workers to paint and pile dirt to cover up the traces of wall cancer before handing over the house, and falsely checked "no leaks" in the condition list of the "real estate description". Once this intentional concealment of defects is revealed by the buyer with evidence, not only will the exemption clause in the contract become invalid, but the former owner will still have to pay compensation for the defects. The buyer will not be subject to the above-mentioned "six-month" statute of limitations and may pursue legal action.
Litigation costs and appraisal budget trends: How to avoid risks rationally?
If the negotiation with the former owner breaks down and the case is litigated, the Taipei District Court or the New Taipei District Court cannot rely solely on the buyer's side of the story when hearing the water leakage case, and must entrust a third-party impartial organization to conduct an "identification of the cause of the water leakage":
- The court will usually assign professional technicians from the "Civil Technicians Association", "Architects Association" or "Structural Engineering Technicians Association" to conduct on-site inspections. The appraisal fee includes attendance fees, instrument detection and appraisal report writing. The reasonable price in the Shuangbei area is about NT$ 80,000 to NT$ 150,000. This fee must be advanced by the plaintiff (buyer) and will ultimately be borne by the losing party.
- Since litigation is time-consuming (usually 1 to 2 years) and the appraisal fee is expensive, before signing the contract for purchasing a house, the buyer is strongly recommended to budget NT$ 12,000 - NT$ 20,000 to make an appointment with a professional house inspection company to conduct a thorough inspection using scientific methods such as thermal imaging cameras and water pressure tests before handing over the house. Once a leak is discovered before the house is handed over, you can directly ask the seller to complete the repairs before handing over the house, or you can directly deduct the repair budget from the handover payment to avoid the long and painful litigation after moving in.
Perspectives of commercial merchants and acquirers: A guide to hedging against defective guarantees in asset appraisal
For commercial merchants who specialize in acquiring old apartments in Taipei and New Taipei for renovation, maintenance and property appreciation, When buying an old house, businessmen should try to avoid fully accepting the seller's "exemption from liability clause" in the contract, or must have their own plumbing and electrical engineering team conduct an in-depth inspection of the house before handing over the house. Once a major hidden pipe leak is discovered, this scientific identification can be used as a powerful bargaining chip to negotiate for deductions. On the contrary, when the businessman completes the renovation and prepares to resell the property to the next buyer, proactively issuing a "new water and electricity pipe warranty (usually 1 to 2 years)" and a "no leakage statement" can greatly eliminate the buyer's psychological concerns and increase the asset turnover rate and transaction premium. This is a healthy commercial real estate restructuring logic.
New knowledge on air-conditioning power consumption and Taiwan climate maintenance regulations in recent years (2025-2026 current situation)
With the high temperatures in summer breaking historical records and the adjustment of electricity price structure in recent years, the latest statistics from the Energy Administration of the Ministry of Economic Affairs show that air-conditioning equipment accounts for more than 47% of residential electricity consumption in summer. Many people mistakenly believe that if the air conditioner is not cold, they only need to "replenish the refrigerant." However, in fact, refrigerant is not naturally consumed during normal operation in a closed circuit. If the refrigerant is insufficient, it means that there are micro leaks in the copper pipes or joints. Simply replenishing the air conditioner will only treat the symptoms but not the root cause. Refrigerant leakage will aggravate the high temperature overload of the compressor and shorten its service life.
According to Taiwan's standard operating specifications for air-conditioning projects, it is recommended that professional technicians with a refrigeration and air-conditioning decoration technician license perform "full machine high-pressure water washing and evaporator deep sterilization" every 1 to 2 years for detached air-conditioning indoor units. Especially in the humid summer in the Shuangbei Basin, the air drum and water collection tray are easy to breed black mold and jelly-like biofilm. This is also the main reason for the sour smell in the air-conditioning outlet and the backflow of the drainage pipe. Regular maintenance can maintain CSPF (Air Conditioning Seasonal Performance Factor) level one energy efficiency level, which can save an average household 15% to 20% of air conditioning electricity bills every year.
Autonomous simple maintenance vs professional maintenance safety red line
- Homeowners can do by themselves: Remove and clean the nylon filter regularly every 2 to 3 weeks (rinse with clean water and dry in a cool place, do not expose it to the sun to avoid deformation and embrittlement); clean the air outlet blades of the indoor unit with a dry cloth; check whether there is any accumulation of debris within 50 cm around the outdoor unit that hinders heat dissipation.
- Professional technicians must be entrusted according to regulations: Refrigerant pressure testing and leakage repair welding, high-pressure cleaning of indoor unit air drums and aluminum fins with liquid chemicals, reset of the drainage slope of hidden cold water pipes in the ceiling, and 220V dedicated power circuit configuration and leakage circuit breaker replacement.



