[Summer Construction Rates] What Percentage Markup Is Right for This Year’s Estimates? (Is It Reasonable?)

Hello, everyone.

This is Enta.

Hot

Man, it's hot. It's just so hot.

If you're sitting in an air-conditioned office writing up a quote, this might not really sink in, but out on the job site, it's absolute hell.

To be honest, this summer...
"If I don't take a break at least once an hour, I'll collapse."
That's the level we're at.


●“Summer Construction Productivity” from the Field”

Slope work in the summer is way more grueling than you’d imagine, isn’t it?

  • Fully equipped from head to toe (safety harness to waist gear)

  • Helmet + dust mask + air-conditioned workwear (← pretty much useless)

  • Moving up and down a slope with an incline of more than 45 degrees

  • The spraying is done by machine, but the nozzles and assembly are all done by hand.

And we have to do that under the blazing sun, where the temperature is over 35°C.

What will happen?

→Work efficiency is about 60–701 TP3T of the usual level.

Unit Cost for Slope Stabilization Work


● Less work = Longer construction period = Higher costs!

Even if you do a simple calculation…

  • For example, the length that can be constructed per day: decreased from 80 m to 50 m

  • Workers' working hours: Same or longer (due to increased breaks to prevent heatstroke)

  • Increased provision of items such as water, ice, air coolers, and mist fans (current law requires companies to provide these as well)

This,In terms of cost, that's an increase of 20 to 301 TP3T.That's it.


Quotes are "at least 20% higher"; a reasonable range is "30% higher."

Based on my hands-on experience, this is what I recommend.

Item Recommended Surcharge Rate
Standard Quote (Spring, Fall, Winter) 100%
Summer Construction (35°C or Less) 120%
Extreme Summer Heat (over 35°C) 130%

To be honest,Isn't it a bit off to charge the regular price for work where there's a risk of someone getting hurt?

Heatstroke Prevention: Shade Cloth


When negotiating prices, we must make sure to convey the “voices from the field”!

"The deadline is coming up this summer, so please do something about it."

I understand how you feel—you want to say that.

But why don't you try coming to the site wearing a helmet just once?

“Come experience for yourself what ”summer work” is all about.

Try standing there for even half a day while wearing a back brace and an air-conditioned suit.

I think this gives you a good idea of our current situation!


  • Construction work in the summer leads to a decline in physical stamina, safety, and efficiency.

  • The estimate isAt least a 20% increase; a reasonable increase would be 30%

  • Wherever there’s a price cut, “safety” is sacrificed somewhere

At construction sites this time of year, we’re working our hearts out—giving more than 120 percent—and yet,

I'd be happy if you could just imagine it for a moment.

See you later.

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