Other Surveys and Support Work

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山岳地帯での調査・支援作業。ロープアクセスを活用し、安全確保を徹底。

Other Surveys and Support Work

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.

Various survey and support operations

Support for Seismic and Geophysical Surveys

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.

Limestone Cave Surveys

We have years of experience conducting surveys in natural underground caves, focusing on structure, safety, environmental changes, and signs of collapse. Using our proprietary 3D rope access system “SORAT”, we safely reach complex and narrow cave areas, improving both efficiency and coverage.

Waterway and Hand-Dug Tunnel Surveys

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

Abandoned Mine & Vertical Shaft Surveys

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

Tree Climbing & Specialized Tree Removal

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

Raptor Habitat Survey Support

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

Rare Species Research & Relocation

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

山岳地帯での調査・支援作業。ロープアクセスを活用し、安全確保を徹底。

Mountain Area Support & Survey Guides

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

Drone Retrieval Services

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

Deliverables & Reports

Here is an example of our deliverables.

High-Quality
Deliverables
— Ready for Immediate Use

[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.

Technical Documents & Work Plans

This is a technical document detailing the work procedures.
Please download and take a look.

Handbook Vol. 1

Work Plan

Public Relations & Direct Mail

On-Site Photos

Frequently Asked Questions

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.

Our Promise

We Propose the Best Plan Based on Your Budget

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.