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  3. ジエス
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ジエス

EstablishmentAugust 10, 1970
number of employees18
addressTokyo/Chiyoda-ku/4th Floor, 5 Tanaka Building, 4-4 3-chome, Iidabashi
phone03-3263-1578
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last updated:Jul 11, 2025
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  • Company information
  • Products/Services(21)
  • catalog(16)
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ジエス Company Profile

Development and dissemination of new technological products that respond to diversifying architectural needs.

GS Corporation has been walking through the Showa, Heisei, and Reiwa eras for over 50 years as a position of "creation," continuously honing our skills and developing and promoting new products that contribute to the global environment and living conditions. We provide technologies such as SI-type pigeon loft unit technology to improve construction productivity, specialized drainage joint technology for high-rise residential buildings, inspection technology to assess the long-term quality of housing, and next-generation drainage system technology for utilizing stock buildings, thereby creating new added value that meets the needs of the times for many years. Amid the diversifying changes of the era, we aim to leverage the long-standing achievements that GS Corporation has built up as a foundation to develop and promote equipment parts utilizing i-construction technology, taking a new step toward the next era.

Business Activities

Sales business of building equipment parts and systems ● Hatocot ● Sanipump series ● A Trap ● C Trap ● HC Trap ● Cavitator ● Drain Header Engineering business ● Research and Development ● Technical Consulting

Recommended information

[Catalog Revision] Pigeon House Modularized 'Hatokotto'

[Catalog Revision] Pigeon House Modularized 'Hatokotto'

[Catalog Revision] Achieving labor-saving by modularizing pigeon coops! Contributing to significant shortening of construction time, smooth workability, and reduction of rooftop load weight.

"Hato Kotto" is a product that has been modularized from the commonly known "pigeon coop" of the rooftop slab penetration. The construction of the pigeon coop requires many processes such as marking, formwork, rebar installation, concrete pouring, formwork removal, waterproofing, and mortar finishing after the rooftop slab is poured. However, by modularizing the pigeon coop, complicated construction can be omitted, and since there is no need for a curing period, work on rooftop waterproofing and plumbing can begin immediately after installation. Additionally, the weight of the pigeon coop can be confirmed, making the calculation of the rooftop load clearer. For over 35 years since its release, it has been widely used not only in new constructions but also in renovations and upgrades of air conditioning systems, being adopted in more than 15,000 sites. 【Features】 - Significant reduction in construction time - Prevention of falls and rainwater intrusion during construction - Easy maintenance for inspection, repair, and manufacturing - Suitable for renovations and expansions of equipment requiring rooftop slab penetration - Made of FRC material, it has excellent freeze-thaw resistance, durability, and strength, with low absorption and lightweight properties.

Products/Services (21)

[Catalog Revision] Pigeon House Modularized 'Hatokotto' product image
[Catalog Revision] Pigeon House Modularized 'Hatokotto'
Contributing to labor-saving at construction sites! Modular pigeon loft "Hatokotto" product image
Contributing to labor-saving at construction sites! Modular pigeon loft "Hatokotto"
Relocation and expansion of water facilities with the "Sanipump Series" and "SVD". product image
Relocation and expansion of water facilities with the "Sanipump Series" and "SVD".
Pigeon Loft: BIM-compatible rooftop multipurpose unit "Hatokotto" product image
Pigeon Loft: BIM-compatible rooftop multipurpose unit "Hatokotto"

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catalog(16)

Survey responses are required to view e-book details. Click to view the e-book.

C Trap Weather Resistance [For Air Conditioning Drainage]

C Trap Weather Resistance [For Air Conditioning Drainage]

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Silent Vacuum Drainage System

Silent Vacuum Drainage System

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Silent vacuum drainage system

Silent vacuum drainage system

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A 'mini cactus' that can lower the reporting water level.

A 'mini cactus' that can lower the reporting water level.

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news(3)

BIM.png

We have prepared BIM-compatible data for the rooftop multipurpose unit "Hatokotto."

  • PRODUCT

"HATOCOT," which has been in use for over 30 years since its release, is widely applicable not only for new constructions but also for renovations and upgrades of air conditioning systems, having been adopted in over 15,000 sites. By modularizing pigeon loft construction, we provide numerous benefits such as shortened construction periods, labor savings, reduced rooftop weight, and improved maintenance during inspections and repairs. In response to the recent trend of applying BIM in the construction industry, we have prepared BIM-compatible family data for "HATOCOT" to ensure its adoption in an even wider range of sites. By utilizing the family data, tasks such as cost estimation and weight calculations during the design phase become easier, enabling further improvements in productivity and labor savings. *For BIM data, please contact us or download it from the official website (membership registration required).

Nov 07, 2023

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Released a video of the Silent Vacuum Drainage System.

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The Silent Vacuum Drainage System is... When installing toilets or similar facilities in basements, it is common to use a pressurized system with a sewage tank and a sewage pump to pump up the wastewater. However, a minimal amount of wastewater often remains in the sewage tank, leading to unpleasant odors. Additionally, when trying to install toilets or water facilities in existing buildings, it can be difficult to secure the usage conditions of the lower floors and the slope of the drainage pipes, which may lead to abandonment of the project. To address these issues, a vacuum-based drainage system has been developed as an alternative to the pressurized system. However, many existing systems apply vacuum sewage systems that use lift-up methods and gas-liquid mixed suction, which can cause noise and vibration issues. This system is a Silent Vacuum Drainage System that can eliminate noise and vibration problems by using a method that does not involve air suction. Model units are available for viewing. Please feel free to contact us.

Sep 08, 2022

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s6.jpg

We will sell the product "Mini Cactus," which can lower the alarm water level for the pressure drainage system "SaniSpeed Plus." (Effective for leaks during malfunctions)

  • PRODUCT

The pressure drainage system "Sanipump Series" drains water using the power of a pump, freeing you from the constraints of drainage slope. Sanispeed Plus is ideal for general wastewater, such as drain drainage from refrigerated showcases and indirect drainage. There is an optional overflow alarm device, "Sanisensor/Sanialarm," to prevent leaks in case of a malfunction. When connecting drainage fixtures with low overflow edges, such as drain drainage from refrigerated showcases or indirect drainage, it is possible for water to overflow from the fixture before the alarm is triggered. In such cases, using the Mini Cactus can lower the alarm water level to 150 mm. We have released an introduction video for the Mini Cactus, so please take a look. Sanipump Series page: https://jes-it.co.jp/product/sanipump Mini Cactus page: https://jes-it.co.jp/sanipump-s4.html

Oct 20, 2021

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Detailed information

Company name ジエス
number of employees18
Contact addresspostalcode 102-0072 Tokyo/ Chiyoda-ku/ 4th Floor, 5 Tanaka Building, 4-4 3-chome, IidabashiView on map TEL:03-3263-1578 FAX:03-3264-4845
Business LocationsClick here for the list
Industry Trading company/Wholesale
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