Protecting the world's infrastructure with rope access technology
Protecting the world's infrastructure with rope access technology
Keystone Co., Ltd. offers advanced rope access solutions that enable safe and efficient inspection and repair in high or confined locations—without scaffolding.
All work is performed by full-time certified rope access technicians. We conduct regular rescue training and maintain strict safety standards. With over 30 years of zero-accident performance, our team operates nationwide and can handle emergency deployments quickly and flexibly, offering manpower-intensive solutions when needed.
We assist in elastic wave and geophysical surveys that investigate subsurface conditions non-destructively.
Our rope access methods allow safe and quick work in steep or inaccessible environments—where scaffolding is not practical.
Our team specializes in surveying open channels and hand-excavated tunnels, even in difficult-to-reach spaces.
Key tasks include:
• Close visual/tactile inspection for cracks, leaks, and deformations
• 3D scanning & diagram creation
• High-resolution imaging with the AnaPro360 system
We safely inspect and map hazardous abandoned mines and shafts using rope access techniques.
Our work includes:
• Detailed inspections of internal walls and structural degradation
• 3D surveys and digital mapping
• Full-image documentation using the AnaPro360 system
We provide rope-based tree trimming and removal in hard-to-access or dangerous locations.
Applications include:
• Dead/dangerous tree removal
• High-level pruning near power lines or buildings
• Work on steep slopes or narrow spaces
We support ecological studies by safely accessing raptor nesting areas on cliffs or tall trees.
Services include:
• Nest monitoring
• Camera installation for long-term observation
• Inspection support in protected zones
Our experts assist in the ecological study and relocation of rare species, accessing hard-to-reach areas safely and carefully.
Tasks include:
• Habitat surveys in remote/high locations
• Long-term monitoring and sampling
• Transplantation work in conservation projects
We provide safe access and logistical support for surveys in mountainous or steep terrain.
Ideal for:
• Surveys and equipment installation on cliffs or slopes
• Access support for slope repairs or inspections
• Environmental research in remote mountain areas
We retrieve drones from hard-to-reach or high-altitude areas using rope access.
Service Features:
1. Emergency response (24/7 available) — Call 090-8753-2383 (Mr. Nakatani)
2. 100% success rate in difficult conditions
3. Quick turnaround—even at night
4. Handled by drone-experienced technicians
5. Strict confidentiality & safety compliance
[Report Contents]
• Executive Summary
• Detailed Diagrams (elevation, plan, photo-based)
• Cross-sectional diagrams
• Photographs with commentary
All inspections comply with applicable national standards.
Damage assessment and countermeasure classification follow those guidelines, with flexible formatting based on your needs.
This is a technical document detailing the work procedures.
Please download and take a look.
Q. Is rope access dangerous?
A. We strictly follow national safety laws. We’ve had zero accidents in 33 years.
Q. How much does it cost?
A. We adjust to your budget and consistently deliver high-quality results.
Q. Can work be done in rainy weather?
A. Yes. Rope-based work remains safe even in light rain or wind.
Q. Do you use just one rope? What about a lifeline?
A. We follow legal rope access standards. A secondary lifeline is not required.
Q. Are your workers climbers?
A. No—they are trained inspection professionals, not recreational climbers.
Q. What’s the typical turnaround time?
A. We flexibly adjust based on your scheduling needs.
Keystone delivers highly cost-effective, high-quality inspection services thanks to skilled and motivated technicians.
We never reject projects due to budget constraints—instead, we see challenges as opportunities to demonstrate our ingenuity and technical strength.
For consultations or estimates, please contact us. We’ll also flexibly adapt report formatting to your needs.
Open year-round, 24-hour reception
Rope Access Survey Specialists
Keystone Corporation
6-1 Kotobukisaki, Kanagahara Nagaokakyo City, Kyoto Prefecture 617-0856
