What kind of stepladder should an air conditioner installation/repair contractor choose to “improve work efficiency”?

Introduction

In the intense heat of Vietnam, the role of air conditioner installation and repair contractors is becoming more important than ever. Market forecasts indicate that the Vietnamese air conditioner market will grow at an average annual rate of approximately 7.98%, reaching a scale of $2.89 billion by 2030. While the number of projects is increasing, the question of “how many sites can be covered in a day” determines profitability on the ground.

However, many craftsmen overlook the invisible losses caused by their “tools.” The fatigue of carrying heavy stepladders up and down stairs, the time spent securing a level footing on uneven balconies, and the psychological anxiety caused by wobbly footing. These are all factors that slow down work speed. In this article, while unraveling risk data on construction accidents, we will explain from a professional perspective how to choose “stepladders that increase work efficiency” provided by Japan’s Hasegawa Kogyo (Hasegawa Vietnam).

Risks and “Costs” Lurking in Vietnamese Job Sites

The Threat of “Falls” Seen in Data

In construction and equipment installation sites, working at heights always comes with danger. According to a survey based on statistics from the Vietnam Ministry of Labour, Invalids and Social Affairs (MOLISA), 60.4% of fatal accidents at construction sites are due to falls from heights.

In the 2024 occupational accident data, 8,286 accidents occurred nationwide, of which 675 were fatal. Many of the causes were attributed to “unsafe working methods” or “inadequate support structures.”

The “Invisible Costs” Caused by Accidents

For air conditioner installers, using cheap and unstable stepladders means a “business risk” beyond just a safety risk.

  • Work Delays: When footing is wobbly, craftsmen unconsciously become cautious, slowing down drilling operations and piping connections.
  • Product Damage: When carrying heavy outdoor units (30kg–50kg) such as inverter air conditioners up and down, if the stepladder is not stable, the risk of losing balance and dropping the product increases.
  • Accumulation of Fatigue: When visiting 5 sites a day, simply loading and unloading heavy steel or old-fashioned ladders affects work accuracy by the evening.

The Key to Efficiency is “Differentiation by Purpose”

To maximize the efficiency of air conditioning work, it is important to use the optimal “weapons” separately for indoor (indoor unit installation) and outdoor (outdoor unit installation) tasks.

The Revolutionary of Indoor Work “Ashigaru”

In the installation of indoor units and piping work in attics, the biggest enemy is “movement.” Gaining overwhelming support at Japanese job sites is Hasegawa’s Ashigaru series.

  • Overwhelming Lightness: A specialized design realizing “strong yet light” enables carrying with one hand. This allows you to move while holding tools or parts in the other hand, reducing the number of round trips.
  • Workability: Easy to maneuver even in narrow rooms, reducing the risk of damaging walls or wallpaper. Lightweight aluminum ladders are generally known to contribute to fatigue reduction and productivity improvement.

The Guardian of Outdoor Unit Installation “Telescopic Leg Type (RYZ / Shagaman)”

In Vietnamese housing conditions, balconies and alleys where outdoor units are installed are not always flat. The task of balancing by placing bricks or wood scraps under the legs is extremely dangerous and a waste of time.

  • Telescopic Function: The Shagaman and Telescopic Leg series allow adjustment of leg length in centimeter increments, instantly ensuring a level position even on steps or slopes.
  • One-Touch Bar: Equipped with a bar that can be operated while standing, allowing you to unlock and lock the leg extension without bending down. This makes fine-tuning immediately before installing a heavy outdoor unit smooth.

Reasons Why Hasegawa is Chosen: “Sensory Quality”

Why do professionals choose Hasegawa instead of cheap ladders from home centers? The answer lies in “sensory quality” that does not appear in spec sheets.

“Reliability You Feel When You Step On It”

Hasegawa Vietnam’s manufacturing philosophy is summarized in the message, “Reliability you feel when you step on it.” In addition to compliance with standards such as JIS and SG, the company thoroughly eliminates “wobble” and “noise,” which cannot be captured by data alone, through verification by actual humans. When working with both hands like in air conditioner installation, the absence of minute wobbling at the feet is directly linked to work accuracy and speed.

Da Nang Factory Supporting Japanese Quality

Hasegawa Vietnam’s Da Nang factory is not just a production base. Along with factories in Japan and China, it is positioned as one of the four major testing centers in the world. Here, simulating professional usage environments, durability tests exceeding 100,000 cycles—simulating climbing up and down 100 times a day, 5 days a week—are conducted. Products manufactured in Da Nang are exported to markets with strict quality standards like Japan and the US, and their reliability is proven globally.

Custom Orders and Support

Not only standard products, but Hasegawa Vietnam also handles the manufacturing of custom-made aluminum products for factories and warehouses. Consultation is possible even for special requirements, such as installation stands for large-scale multi-split air conditioners (VRV/VRF) for buildings.

Summary

In Vietnam, where the air conditioner market is expanding, the condition for contractors to survive is achieving both “safety” and “speed.”

In the current situation where frequent falls from heights occur, using unreliable tools is an act that endangers not only the lives of workers but also corporate profits.

  • For indoor work, the lightweight Ashigaru minimizes fatigue.
  • For outdoor work, the Telescopic Leg Type ensures a level position on any footing.

“Investment in tools is an investment in future profits.” Hasegawa Vietnam’s products fuse Japanese craftsmanship with Vietnamese manufacturing technology to bring “unwavering peace of mind” and “peak performance” to your job site.