Business Activities

Our Vision and Business Activities

“Creating construction that earns trust and buildings we can be proud of for generations to come.”

We are active on construction sites primarily in the 23 wards of Tokyo.
Our work ensures that the buildings and locations we construct endure for future generations, occasionally appearing in dramas and commercials as well.

We prioritize the inheritance of skills and knowledge to the next generation, pioneering the future of the construction industry.
To achieve this, we have established support systems to assist employees in acquiring necessary qualifications, ensuring each individual can fully utilize their abilities.

Additionally, we prioritize employee peace of mind and a comfortable working environment by offering monthly salary systems, social insurance, and flexible vacation options, among other considerations.

In the evolving construction industry where demand for skilled professionals is increasing, we are committed to demonstrating leadership, adapting to changes, and continuing to grow.

Steel Curtain Wall

Steel Curtain Wall is a critical element that enhances the appearance and functionality of buildings.
I will provide a detailed explanation of the construction procedure below.

STEP
Design Stage

First, we conduct a preliminary check of the building’s design drawings.

STEP
preparation work

We verify the layout markings at the construction site.
Handrails and scaffolding are installed by specialized subcontractors (carpenters) hired by the main contractor.

STEP
Frame installation

We attach frames to the exterior walls of the building. We install vertical posts (houdates) and frames using heavy machinery or specialized tools.
To ensure horizontal and vertical lines, we use laser levels and spirit levels.

STEP
Installing the glass panel

We install glass panels that fit into the frames.
Glass panel installation is carried out by a separate contractor.

STEP
Sealing treatment

We apply sealant between the glass panel and the frame to ensure waterproofing and air tightness.
Sealing is installed by a separate contractor.

STEP
Final confirmation and adjustment

After construction is completed, we conduct final inspections and adjustments.
We check that the frames and glass panels are accurately positioned, ensuring there are no issues with appearance or functionality, and make adjustments as necessary.

STEP
finishing work

Finally, we clean up the construction site and remove any unnecessary materials or equipment.
To maintain the appearance and aesthetics of the building, we meticulously perform exterior wall cleaning and finishing work.

The above is the general construction procedure for a steel curtain wall.
To ensure both safety and durability while achieving a building with a beautiful appearance and functionality, careful and professional work is essential.

カーテンウォール下部調整 (1)-2

Bottom Adjustment

カーテンウォール 枠取付

Frame Installation

カーテンウォール 吊込み

Hoisting

カーテンウォール ボルト固定 (1)

Bolt Fixing

Metal Panels

STEP
preparation work

We clean up the construction site and remove obstacles and unnecessary items.
We construct the foundation and framework as needed, preparing the installation locations for the panels.

STEP
Installing the base

We accurately mark the layout at the construction site to determine the panel base, installation level, and alignment.

STEP
panel cutting

Based on the markings, we cut the panels to the appropriate size as needed.
We generally do not perform basic processing but will do so for irregular cases.

STEP
Installing the panel

We create installation holes for panel mounting using drills or punching tools.
We prepare appropriate hardware (bolts, nuts, washers, etc.) for mounting the panels and attach them to the frame or wall.

STEP
Sealing and finishing

After the panels are installed, we seal the mounting holes and joints with sealant.
Sealing is installed by a separate contractor.

STEP
final check

We perform final checks to ensure that the panel installation is accurate and safe.
We verify that the panels are correctly installed and do not impact the surrounding environment or structure.

By executing these steps properly, you can install metal panels in an efficient and reliable manner.

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Hardware Bracket Installation

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Hardware Bracket Installation

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During scaffolding work

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During scaffolding work