Protecting the world's infrastructure with rope access technology
Keystone Co., Ltd. provides advanced rope access techniques that enables inspection and repair work in high or confined areas without the need for scaffolding. Our services cover a wide range of inspections, surveys, and maintenance work, including bridges and slopes.
All of our team members are full-time employees and certified rope access technicians. As a professional team, we deliver high-quality inspections and repairs. We also conduct regular rescue training to ensure rigorous safety management.
With over 30 years of accident-free operations, we are active nationwide with a highly mobile workforce. Our skilled, full-time technicians handle even emergency site work, flexibly adjusting to tight schedules and offering efficient operations through manpower-based deployment.
[Report Contents]
• Executive summary
• Survey result development drawings (elevation views, plan views, photographic elevation views, etc.)
• Survey result cross-sectional drawings
• Photographs and photo commentary
* Inspections are conducted in accordance with various inspection guidelines.
* Damage assessment and countermeasure classification determination in accordance with each guideline.
* Inspection result organization is flexibly handled to meet your specific requirements.
Q. Isn’t this dangerous?
A. We fully comply with Japan’s Industrial Safety and Health Regulations.
Thanks to our strict safety protocols, we’ve had zero accidents in 33 years.
Q. How much does it cost?
A. We tailor our services to fit your budget.
Our clients are consistently satisfied with the value we deliver—even under tight constraints.
Q. Can you work in the rain?
A. Yes. Our rope systems ensure safety even during light rain and wind.
Q. Do you only use one rope? What about a lifeline?
A. We typically do not use a second lifeline.
Our approach complies with legal safety methods for rope access work in Japan.
Q. Are your workers climbers?
A. No. This is a different field. All of our team members are trained rope access professionals, not sport climbers.
Q. How long does the work take?
A. We flexibly adjust to meet your requested deadlines.
At Keystone, we provide highly cost-effective inspection and repair services backed by technical excellence and motivated staff.
We prioritize your budget and always aim to deliver the best results through ingenuity and expertise—even under tight constraints.
We never turn away projects simply due to limited funds.
We believe that challenging conditions are exactly where our value shines.
Please feel free to contact us for more information or a detailed estimate.
We also flexibly tailor inspection result formatting and reporting to match your needs.
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