I had just a few days to make this logo!

What I had in mind creating it:

- simple forms, so easy to "read" and easy to use on different materials and to different purposes

- masculine and strong sign (character of providing services is not really watering flowers ;)

- universal

- serious

- avoiding obvious signs connected directly with hazmat and danger

- avoiding circles, cause "IHS" is most common Christogram, where association IHS + circle is obvious Christian sign

- sans serif, strong font

First ideas:

Chosen idea: