[Exclusive Survey] Termite Extermination and Repair Costs Exceed 200,000 Yen; 83% of Affected Homes are Over 11 Years Old
A survey by BEST Inc. of 100 people who have undergone termite extermination reveals that 76% spent over 100,000 yen on extermination, with over half also spending 100,000 yen or more on repairs. Over 60% of respondents felt the total cost was higher than expected. With 83% of affected homes being over 11 years old, early professional inspection is highly recommended.
📋 Article Processing Timeline
- 📰 Published: May 28, 2026 at 10:10
- 🔍 Collected: June 1, 2026 at 00:52 (86h 42m after Published)
- 🤖 AI Analyzed: June 1, 2026 at 23:54 (23h 2m after Collected)
BEST Inc. (Headquarters: Yokohama, Kanagawa; CEO: Ryu Osawa), dedicated to creating a safe society through optimal information, provides termite solutions via its specialized service, 'Shiroari Otasuke Honpo.' We conducted an exclusive survey of individuals who have experienced termite extermination. The results revealed two key points: more than half of those affected spent over 100,000 yen on repairs in addition to extermination costs, and over 60% stated the total cost was 'higher than expected.'
According to a survey conducted in September 2025, the most common extermination cost was between 110,000 and 200,000 yen, with 76% of respondents paying over 100,000 yen. Costs vary by method and floor area. In Japan, 90% of exterminations use the 'barrier method,' where chemicals are applied to soil and wood under the floor. For an average house (30 tsubo), the market price is between 130,000 and 249,000 yen.
We also investigated repair costs. Only 19% of respondents said no repairs were needed. 81% required repairs, with 51% spending over 100,000 yen. Given that 76% spent over 100,000 yen on extermination alone, the total cost for termite damage often exceeds 200,000 yen.
Regarding the age of the affected homes, 33% were between 11 and 20 years old. Notably, 83% of homes affected were over 11 years old, indicating a higher risk as buildings age. Reports from the Ministry of Land, Infrastructure, Transport and Tourism suggest that the probability of termite damage rises to 29.3% for homes aged 15-19 years and remains high thereafter. As older homes are more likely to have long-term, hidden damage, early professional diagnosis is crucial to minimizing repair costs. We recommend that homes over 15 years old undergo a professional under-floor inspection, even if no external abnormalities are visible.
According to a survey conducted in September 2025, the most common extermination cost was between 110,000 and 200,000 yen, with 76% of respondents paying over 100,000 yen. Costs vary by method and floor area. In Japan, 90% of exterminations use the 'barrier method,' where chemicals are applied to soil and wood under the floor. For an average house (30 tsubo), the market price is between 130,000 and 249,000 yen.
We also investigated repair costs. Only 19% of respondents said no repairs were needed. 81% required repairs, with 51% spending over 100,000 yen. Given that 76% spent over 100,000 yen on extermination alone, the total cost for termite damage often exceeds 200,000 yen.
Regarding the age of the affected homes, 33% were between 11 and 20 years old. Notably, 83% of homes affected were over 11 years old, indicating a higher risk as buildings age. Reports from the Ministry of Land, Infrastructure, Transport and Tourism suggest that the probability of termite damage rises to 29.3% for homes aged 15-19 years and remains high thereafter. As older homes are more likely to have long-term, hidden damage, early professional diagnosis is crucial to minimizing repair costs. We recommend that homes over 15 years old undergo a professional under-floor inspection, even if no external abnormalities are visible.
FAQ
How can I prevent termite damage in Japan?
Regular inspections by professionals are essential, especially for homes over 15 years old, to detect hidden infestations early.