"Are you only considering redoing and repainting?" A method with overwhelmingly short construction time.
Short construction period! No damage to the floor! No interruption to operations! Available 24/7 throughout Japan.
"I replaced it six months ago. If I had known about this method earlier." This is a voice from our customers that we hear at exhibitions and other events. 【What is the Teratech Method?】 Unlike traditional methods of replacement or resurfacing, this method restores floor slopes, subsidence, and unevenness to a level surface without breaking the floor and without stopping operations. It is a patented method that injects Teratech resin beneath concrete floors (roads) to fill voids under the floor with its expanding force, bringing the sunken floor back to level. Since it uses injection holes smaller than a one-yen coin (6mm) to inject expanding resin without breaking the floor, there is no need to remove goods or machinery. This means there are no additional costs for moving items, temporary storage during construction, or disposal of industrial waste, aside from the construction costs. 【Main Features】 1: Can be constructed without stopping operations 2: Short construction period (150 to 200 square meters in about 8 hours) 3: No need to move goods, racks, or machinery since the floor is not broken 4: Normal use is possible immediately after construction For more details, please view the catalog from the "PDF Download" section. Feel free to contact us by phone (0120-873-835) or email (info@mainmark.co.jp).
basic information
The TerraTech method has numerous construction achievements, including warehouses, factories, and stores, as well as public facilities and roads. (Construction achievements: 4,200 cases) 【Addressing building tilt and strengthening the ground beneath existing structures】 Our company has both civil engineers knowledgeable about the ground and architectural engineers familiar with buildings, allowing us to propose suitable methods tailored to our customers' needs from various construction techniques, and to handle design and construction. We also offer consultations for "total solutions" regarding the tilt of existing structures. For more details, please refer to the catalog available for download in PDF format. Feel free to contact us by phone (0120-873-835) or email (info@mainmark.co.jp).
Price information
After investigating the sinking amount and cavity volume, we will provide a design estimate. The inspection is free of charge, so please feel free to consult with us.
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Model number/Brand name
TerraTech method
Applications/Examples of results
【Main Clients】 ▼Government Agencies Ministry of Land, Infrastructure, Transport and Tourism Kanto Regional Development Bureau Ministry of Land, Infrastructure, Transport and Tourism Chubu Regional Development Bureau Ministry of Land, Infrastructure, Transport and Tourism Kinki Regional Development Bureau Ministry of Land, Infrastructure, Transport and Tourism Chugoku Regional Development Bureau Ministry of Land, Infrastructure, Transport and Tourism Kyushu Regional Development Bureau Ministry of Land, Infrastructure, Transport and Tourism Hokuriku Regional Development Bureau Ministry of Land, Infrastructure, Transport and Tourism Tokyo Aviation Bureau Tokyo Metropolitan Government, First Construction Office Iwate Prefecture, Department of Land Development Aomori Prefecture, Shimokita Regional Bureau Kyoto Prefecture, Civil Engineering Office Chiba Prefecture, Sewerage Corporation ▼Private Companies Obayashi Corporation Kajima Corporation Taisei Corporation Takenaka Corporation Shimizu Corporation Daiwa House Industry Co., Ltd. TODA Corporation Mitsui Sumitomo Construction Co., Ltd. Ando & Associates, Inc. Tokyu Construction Co., Ltd. Goyo Construction Co., Ltd. Maeda Corporation Fujita Corporation Nishimatsu Construction Co., Ltd. NIPPO Corporation Please feel free to contact us. Toll-Free Number: 0120-873-835
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Announcement of Participation in "Western Japan Manufacturing Technology Innovation 2025" to be Held in Kokura, Fukuoka in July 2025.
The exhibition "Nihon Manufacturing Technology Innovation 2025," which will be held from July 2 (Wednesday) to July 4 (Friday), 2025, at the West Japan General Exhibition Center, has been confirmed! At "Nihon Manufacturing Technology Innovation 2025," cutting-edge technologies that address various challenges faced by manufacturing sites in the Kyushu and Yamaguchi regions, centered around Kitakyushu, will be showcased. Mainmark will be exhibiting for the first time, introducing the "TerraTech Method," which contributes to safety measures by filling the voids under floors where machinery and equipment are installed, and improving productivity and preventing workplace accidents by correcting floor inclinations. We look forward to welcoming everyone visiting the Ipros manufacturing site. *For more details, please see the announcement below: https://mainmark.co.jp/news/20250522
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Announcement of participation in "MF-TOKYO 2025" to be held in Tokyo in July 2025.
The exhibition at "MF-TOKYO 2025," which will be held from July 16 (Wednesday) to July 19 (Saturday), 2025, at Tokyo Big Sight, has been confirmed! "MF-TOKYO 2025" is an international exhibition related to forming machinery (presses, sheet metal, forming, automation, and peripheral equipment). Mainmark will be exhibiting for the first time, showcasing safety measures such as floor void filling for heavy machinery and equipment like presses, as well as the "TerraTech Method," which contributes to productivity improvement and prevention of labor accidents by correcting factory floor inclinations. We look forward to welcoming everyone visiting the Ipros manufacturing site. *For more details, please see the announcement below: https://mainmark.co.jp/news/20250529
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Announcement of participation in "FOOMA JAPAN 2025" to be held in Tokyo in June 2025.
The exhibition at "FOOMA JAPAN 2025," to be held from June 10 (Tuesday) to June 13 (Friday), 2025, at Tokyo Big Sight, has been confirmed! "FOOMA JAPAN 2025" is one of the largest exhibitions in Japan's food industry, aimed at exchanging technologies and information related to food machinery, equipment, and related devices. Mainmark will be exhibiting for the first time independently, showcasing the "TerraTech Method," which contributes to pest control through void filling under floors and improves productivity and prevents workplace accidents by correcting the slope of factory floors! ■ Main topics to be introduced: - Investigation of voids under floors, level surveys of floors, vibration surveys - Void filling method "TerraTech Method" for correcting floor subsidence without stopping operations - Construction to level tilted buildings - Ground improvement work beneath buildings We look forward to welcoming everyone visiting the Ipros manufacturing site. *For more details, please see the announcement below: https://mainmark.co.jp/news/20250418
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We have published examples of the construction work for the sinking correction project.
We have newly published a case study on our service site for the Teratec method. This is a case of settlement correction work carried out at an electronics retail store in Shiga Prefecture. There were concerns about the sagging of the store floor due to ground subsidence, and we were consulted by the company. We understand that our Teratec method was chosen because it allows for construction without interrupting daily operations. Additionally, the positive feedback from a previous project was also a key point. Our company has extensive experience in settlement measures and void filling work while maintaining daily operations for stores and factories. With eight offices nationwide, we are ready to assist you, so please feel free to contact us if you are facing issues with ground subsidence or voids under your floors. ■ Case Study (Teratec Method Service Site): https://teretek.jp/repo/r181
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We have published examples of construction work for cavity filling (BCP measures).
We have newly published construction case studies on the service site for the Teratec method. This is a case of filling voids beneath the floor slab conducted near an automatic rack warehouse in Toyama Prefecture. There were concerns about subsidence of the surrounding roads and building floors due to ground subsidence following the Noto Peninsula earthquake, and we received inquiries from clients regarding this issue. We have been informed that the key factor for choosing our Teratec method was its ability to perform "short-term construction without stopping truck traffic." Additionally, the effectiveness of compacting loosened ground has also been highly evaluated. Our company has extensive experience in subsidence countermeasures and void filling work while maintaining daily operations in logistics warehouses and factories. With eight branches nationwide, we are equipped to respond to issues related to ground subsidence and voids beneath floors, so please feel free to contact us if you have any concerns. ■ Construction case studies (Teratec method service site): https://teretek.jp/repo/r180
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The main business activities of Mainmark involve "returning tilted floors and buildings to a level state" and "preventing existing floors and buildings from tilting." We primarily offer the "TerraTech Method," which allows us to level tilted floors without stopping operations, and we provide various construction proposals tailored to our customers' concerns, from investigation to execution. ■ Nationwide responsible construction with over 5,000 completed projects Mainmark has established offices in eight locations across the country and conducts responsible construction nationwide. We serve a wide range of clients, including factories, stores, warehouses, offices, and apartments. ■ Non-disruptive floor tilt and subsidence correction method "TerraTech Method" Our main service, the "TerraTech Method," is a patented technique that injects TerraTech resin (rigid polyurethane foam resin) into concrete floors that have developed tilts, subsidence, steps, or voids due to ground subsidence or earthquakes. The expansion force of the resin levels the sunken floor and fills the voids beneath it. This technology is also registered with the Ministry of Land, Infrastructure, Transport and Tourism's "NETIS," ensuring its reliability. Patent No. 4896949 "Method for Correcting Sunken Floors" NETIS Registration No. "QS-080007"