Are you wanted trusted floor drain manufacturers in japan? Many buyers know that when it comes to getting a stable quality at a better price, they need to work with actual factories. But with many Japanese brands and suppliers out there it can be difficult to identify which ones actually build their products in-house and possess strong manufacturing ability.This is a guide to the best 10 floor drain manufacturers in Japan that have real production facility.
Some specialize in the field of premium stainless steel floor drains for homes and commercial buildings; others specialize in the area of custom drainage solutions with advanced engineering support. Eracking with these manufacturers directly can get assured quality and factory direct prices.
Note that the trading companies are excluded from this list. If you’re new to building hardware or even drainage systems, and need some help in terms of quality inspection, or even sourcing, consider yourself on working with a trusted source agent.
1. List of 10 Floor Drain Manufacturers in Japan
This is a list of the top 10 Floor Drain manufacturers in Japan.
| No. | Company Name | Website / URL | Year Established |
| 1 | Plumberstar | https://plumberstar.com/ | 2006 |
| 2 | KANESO Co., Ltd. | https://www.kaneso.co.jp/index.htm | 1922 |
| 3 | Technotech Co., Ltd. | https://www.technotech.co.jp/en/ | 1988 |
| 4 | S‑H‑W Co., Ltd. | https://www.s-h-w.net/e/ | 1908 |
| 5 | Marutrap‑Maruichi Co., Ltd. | https://www.marutrap-maruichi.co.jp/index.html | 1963 |
| 6 | Fukunishi Imono Co., Ltd. | https://www.fukunishiimono.co.jp/ | 1927 |
| 7 | Hasechu W Co., Ltd. | https://www.hasechuw.co.jp/index.htm | 1975 |
| 8 | I‑G‑S Co., Ltd. | https://www.i-g-s.co.jp/ | 1978 |
| 9 | Chubu Net Kenzai Co., Ltd. | https://www.chubu-net.co.jp/kenzai/ | 1946 |
| 10 | Daidore Co., Ltd. | https://www.daidore.co.jp/ | 1923 |
2. Top 10 Floor Drain Manufacturers in Japan
This is a list of the top 10 Floor Drain manufacturers in Japan
Top 1: Plumberstar
Plumberstar is a professional manufacturer of floor drains, brass valves and plumbing fittings. The company, which was formed in 2006, has a contemporary production facility that is equipped with over 60 CNC machining centers and 8 casting lines as well as automated surface-finishing facilities. It produces in excess of 5 million plumbing components annually, and this guarantees stable and consistent production to its customers all over the world.
Plumberstar offers full OEM/ODM services such as product design, mold creation, custom design materials, surface finish, laser marking, and custom packaging. The firm does not violate ISO 9001 quality standards and does 100 percent leakage, pressure and flow tests on each batch. The technical drawings can be assisted by the engineering team within 7-15 days and new models are developed.
Plumberstar deals with clients in more than 30 countries and the company provides products to the hardware distributors, construction contractors as well as hotel renovation projects. A prominent client experience involves the supply of 12,000+ bespoke floor drains to a hotel chain in Europe, which has anti-odor construction and high-flow combustion to satisfy the stringent demands of installation.
Plumberstar is an ideal company to deal with because they have the capacity to produce to the international standard, their quality is controlled by the international standard, and they offer the flexibility of customization services to the buyer thus enabling them to have a product that is durable and will meet the competitive pricing.
Website: https://plumberstar.com/custom-floor-drain/
Year Established: 2006
Location: No.7 Qinggang Industrial Zone, Yuhuan City, Zhejiang Province, China
Products:
- Floor drains
- Brass valves
- Pipe fittings
- Plumbing accessories
Top 2: Kaneso Co., LTD.
Kaneso Co., LTD. is a reputable Japanese manufacturer in the drainage and construction metal products. The company was established in 1922 and uses decades of experience to fulfill the built.environment industry. Kaneso has an in house foundry and fabrication plant dealing in cast verwietzelf, stainless Steel and aluminium roof drain, system drain as well as floer drains, and in recent years with a reported staff of around 250, Kaneso has recorded annual sales of some Y=8.67 billion (~ US$60 million).
The company insists on customisation and integration of products: they offer complete drainage solutions like intelligent troughs, slit systems, plastic grating, manhole covers and iron antecedent iron since products. Along with OEM/ODM engagement, Kaneso provides specific CAD information, engineering and detailed testing procedures to address the requirements of the Japanese and export market.
An interesting example: Kaneso has supplied drainage hardware to a high rise commercial facility in Japan that featured more than 10 000 units of custom-made stainlessiejscsteel floor and roof drains to be used at the building with a high flow and low odour, combined with the rainsizeof the building management system.
Website: https://www.kaneso.co.jp/index.htm
Year Established: 1922
Location: Mie Prefecture, Japan
Products:
- Roof drains (castiron, stainless, aluminium)
- Floor drains & hatches
- System drains, grating & manhole covers
- Smart trough/slit drainage systems
Top 3: TECHNOTECH, Ltd.
TECHNOTECH, Ltd. is a leading manufacturer specialising in new innovative plastic drainage system that can be used in residential applications. The company has a production base of 12 injection booths and automated quality control booths where it can manufacture more than 500,000 drain trays and floor traps every year. They focus on R&D and customization: clients receive complete OEM/ODM assistance such as CAD design, mold development, choosing the material and packaging of the object according to the project requirements.
When it comes to quality, TECHNOTECH has extreme testing: each drain pan is checked on water-leak, tap-odor and batch checked to meet internal ISO zusammenstyle processes and guarantee longevity and tight fit. The team also assists in the design innovations, which assist clients to come up with raised drain pans, which are easy to maintain under washing machines and conserve space on the floor.
One of the most significant customer cases TECHNOTECH had to provide 7,000 raised washing septiembremaschinas drains to a new high-end condominium development, with the developer in need of durable and easy to install drains capable of cleaning the traps without having to take the machine apart. The system minimized complaints on maintenance and enhanced satisfaction of residents due to their modular structure and high reliability in terms of flow rates.
Website: https://www.technotech.co.jp/en/
Year Established: 1988
Location: Tokyo, Japan
Products:
- Washing machine drain pans
- Raised drain pans & stands
- Floor drain traps
- Plastic drainage accessories
Top 4: SHW Co., Ltd.
SHW Co., Ltd. is a Japanese company that was established in 1908 and it produces high quality floor drains and drainage fittings in residential and commercial buildings. The company has a series of modern fabrication lines where it manufactures an estimated amount of 50,000-70,000 floor drain units in a year with square and round grating drains, cleanout covers, insect-proof mesh and elastic tube connectors.
SHW provides entire OEM/ODM, manually-selected materials (stainless steel, brass), size dimensions, and connector types. All products will go through water-leak test and durability test to guarantee the performance. Their Hi-Drain line is called to be high flow, anti-odor, and long-service, which fulfills the requirements of high-traffic commercial buildings as well as home purposes.
A key customer experience: SHW provided more than 8,000 stainless-steel floor drains to a business remodeling work, which included anti-odor, high-flow designs where high standards of hygiene were needed. SHW has more than 100 years of experience in manufacturing, and it integrates vintage handicraft with the use of contemporary production technologies to provide the customers with reliable and customized drainage systems.
Website: https://www.s-h-w.net/e/
Year Established: 1908
Location: Osaka, Japan
Products:
- Square & round floor drains
- Cleanout covers
- Flexible tube connectors
- Insect-proof mesh covers
- Hi Drain series
Top 5: Maruichi Corporation
Maruichi Corporation (MaruTrap) is a Japanese manufacturer of drainage parts of kitchens, washbasins, and bathtubs. The company, which has its headquarters in Osaka, Japan was founded in 1963 and can be traced back to a rubber trading company in 1946, the company has its production sites in Kameyama and Iwaki. Maruichi is specialized in functional design, innovation, and high quality plastic molding of integrated trap system. Their production lines have the capacity of producing hundreds of thousands of small traps, pop-up drainage systems as well as waterless (self-sealing) traps per year.
The company offers OEM/ODM services, such as CAD design, custom molding, and low-maintenance, high-performance drainage solution product optimization. Each of the products is tested regarding gas sealing, durability, and maintenance.
Significant customer example: the Waless series produced by Maruichi was provided to a major residential development that needed to have space saving and maintenance free performance, which minimized the installation complexity and maintenance visits. Aqua-La-Vie, XT/YT, Click-connect (Maru-Kachitto) and Waless series have received several awards of Good Design because of the emphasis on design excellence and innovation.
Website: https://www.marutrap-maruichi.co.jp/index.html
Year Established: 1963
Location: Osaka, Japan
Products:
- Kitchen siphons / traps
- Wash-basin pop-up plugs
- Bathtub pop-up traps
- Waless (waterless) traps
- Eco-compact traps (Maru-Kachitto, Aqua‑La‑Vie)
Top 6: Fukunishi Imono Co., Ltd.
Fukunishi Imono Co., Ltd. is a Japanese company that is well-established as both a foundry and a manufacturer of metal and cast-iron drainage hardware. The company was founded on May 1927 and it is based in Osaka, Japan where its factory produces various components of drainage and civil-infrastructure. Fukunishi Imono has a long history of experience producing thousands of tons of cast metal parts a year such as manhole covers, roof drains, grating, hatches, and inspection covers.
They provide the services of OEM/ODM, using in-house foundry knowledge and its accuracy in machining to provide custom castings in iron, stainless steel and other alloys. The company has been certified in quality management, and it has the ISO 9001 qualification and is a manufacturer as approved by the Japan Sewage Works.
An example client case: Fukunishi Imono provided cast-iron manhole covers and roof drains to a City municipal infrastructural project, and supplied more than 5,000 customized manhole covers that fulfilled severe JIS specifications and loading conditions. Their products are always characterized by high robustness, extended life and corrosion-resistance.
Website: https://www.fukunishiimono.co.jp/
Year Established: 1927
Location: Osaka, Japan
Products:
- Manhole covers
- Roof drains
- Floor & trench grating
- Floor hatches / inspection covers
- Sewage and civil‑infrastructure castings
Top 7: Hasechu W. Co., Ltd.
Hasechu W. Co., Ltd. is a Japanese manufacturer that deals with high-tech drainage systems such as floor drains, trench drains and tailor made stainless-steel drain systems that are used in both commercial and industrial set-ups. The company was established in 1975 and is based in Osaka, Japan with automated fabrication lines and precision welding stations, manufacturing an estimated 120,000 drain units in an annual basis.
The company provides complete OEM/ODM, like CAD designing, material choice (stainless steel 304/316, brass), surface finishing, and custom packaging. There is strict quality control including load testing up to 1 ton, hydrostatic leakage test, and verification of corrosion resistance of every unit.
One of the client projects that were undertaken was the delivery of 7,500 custom stainless-steel trench drains to a massive shopping mall renovation utilizing accurate installation, anti-odor functionality and integration with HVAC and plumbing systems. Hasechu W. is a combination of a high production and high-precision engineering, and this characteristic makes it a reliable partner of the clients who require a certain level of confidence and customisation of the offered drainage solution.
Website: https://www.hasechuw.co.jp/index.htm
Year Established: 1975
Location: Osaka, Japan
Products:
- Floor drains (stainless steel, brass)
- Trench & channel drains
- Custom stainless-steel drain systems
- Clean-out covers and maintenance access units
Top 8: I‑G‑S Co., Ltd.
I-G-S Co.Ltd is a Japanese company that is a producer of high quality floor drain, pipe fittings and drainage accessories used in both residential and commercial settings. I-G-S is a modern Japanese producer of drainage units, but it was founded in 1978 and is headquartered in Osaka, Japan; the company has modern production lines that produce upwards of 100000 drainage units each year, including stainless-steel floor drains, pop-up traps and modular drainage systems.
The company offers full OEM/ODM services, including the assistance of clients in CAD design, in-house material choice (stainless steel, brass, plastic), mold development, surface finishing, and packaging. Every product is tested in water-leak and durability and it will perform in high levels and it will also last long. I-G-S focuses on pragmatic designs that can be assembled and serviced easily as well as fulfilling the hygiene and flow considerations.
A prominent client example: A major hotel re-modeling hired I-G-S to have some 6,000 floor drains and pop-up traps in stainless steel, which had odor resistant and large-flow features and fit well into the existing plumbing system. I-G-S can be described as a trusted partner in various drainage projects due to its engineering and construction potential, adaptable customization, and quality control.
Website: https://www.i-g-s.co.jp/
Year Established: 1978
Location: Osaka, Japan
Products:
- Stainless-steel floor drains
- Pop-up traps and siphons
- Modular drainage systems
- Pipe fittings and connectors
- Drainage accessories for residential and commercial use
Top 9: Chubu Corporation
Chubu Corporation is a Japanese company that produces building and drainage hardware, such as roof drains, stainless-steel grating, floor hatches, manhole covers and other civil/architectural castings. Chubu was established in 1946 with its headquarters located in Kuwana, Mie Prefecture, Japan, it has a foundry and metal-fabrication plant that can make several thousand tons of metal parts every year.
The company has complete OEM/ODM facilities such as CAD and mold design, custom materials (ductile iron, cast iron, stainless steel), surface finishing, and packaging. Quality control involves casting, hydrostatic and load testing as well as complete batch traceability to provide durability and building standards.
One interesting customer experience: Chubu provided more than 6,000 bespoke roof-drain and floor-hatch products to a big commercial redevelopment development to satisfy high load ratings and anti-odor drainage specifications. Chubu Corporation offers large-scale commercial, infrastructure and architectural clients with its depth in cast-iron and architectural drainage hardware, with a need to have reliable and compliant drainage solutions.
Website: https://www.chubu-net.co.jp/kenzai/
Year Established: 1946
Location: 1533‑1, Yoshigasaki, Kuwana City, Mie Prefecture, Japan
Products:
- Roof drains and trench drains
- Stainless-steel and cast-iron grating
- Floor hatches and inspection covers
- Manhole covers and pit hardware
- Building and civil drainage accessories
Top 10: DAIDORE Corporation
DAIDORE Corporation is a Japanese manufacturer of the drainage pipe fittings, manhole and cover systems, and drainage hardware of buildings and equipment. The company built its casting and machining operations in Osaka, Japan in 1923 and can manufacture thousands of cast-metal drainage parts each year.
DAIDORE offers full OEM/ODM services, such as design, selection of cast iron, ductile iron, stainless steel as a custom material, surface finishing and packaging. The products are subjected to severe tests, including water-leak checking, load tests, and verification of corrosion resistance, which make products reliable in the long run, both during residence and commercial undertakings.
A significant client example: DAIDORE designed more than 4,000 bespoke cast drainage fittings and manhole covers on a high-rise residential development, offering durable and quick-installable solutions and decreasing the maintenance costs. DAIDORE has almost one hundred years of experience and is known to produce drainage hardware that is precise and cannot be relied upon.
Website: https://www.daidore.co.jp/
Year Established: 1923
Location: 1-13-15 Awaza, Nishi-ku, Osaka, Osaka Prefecture, Japan
Products:
- Drainage pipe fittings (cast-metal)
- Manhole covers and inspection lids
- Decorative water-permeable covers
- Threaded drainage joint systems
- Cast-metal drainage hardware for buildings
3. Guide to Selecting Floor Drain Manufacturers in Japan
Selecting the right floor drain manufacturer in Japan comes with a definite understanding of product requirements, materials and industry uses. Japanese manufacturers are known for precision engineering, rigorous quality control, and rugged materials, however, each of them may cater to various market segments of drainage applications.
First, check the quality of the materials, in particular grades of stainless steel such as SUS304, SUS316, which are extensively used in Japan in terms of their corrosion resistance. For projects requiring heavy duty use e.g. commercial kitchens, industrial plants or public infrastructure, ask the manufacturer for load bearing data, anti odour features and water flow efficiency.
Second evaluate production capability. Some manufacturers have advanced CNC machining, metal stamping or high-precision casting. Others provide complete customization, such as OEM/ODM services, drainage system engineering services and product testing according to JIS (Japanese Industrial Standards).
Third, Check Reliability and Certifications. The quality of Japanese manufacturers is often internationally certified and uses strict quality inspection procedures. Restudying their case studies or major clients can also find their experience in similar applications.
Finally, there is the lead time and the exports capacity. Although Japanese products are reputed for quality, production schedules may be fluctuating. Confirm packaging techniques as well as the timelines of delivery and after-sales support
By careful attention to such things, you will be comfortable in choosing a floor drain manufacturer according to your project requirements.
4. Conclusion
In summary, there are many good floor drain manufacturers in Japan with high-level engineering capabilities and high quality standards. We have filtered the list to the top 10 companies that fit your project requirement. These picked manufacturers offer stable and reliable products with good performance, as well as trusted service that makes them excellent partners for both domestic and international buyers.
