Let's start with the presentation page. It does the job. The theme is well presented with demos and the overall look is nice. Some minor issues:
that words changer at the beginning seems a little buggy on change and the background hero image is not showing on the phone (Chrome and Safari). Possibly because of the fixed position.

The theme seems well structured and suited for the needs of a construction company. Liked the on-site customizer. Yet, that rotating cog should transform to a close icon on toggle for a better UX when closing.

I can see you have put a lot of effort on customization possibilities and you have also provided a lot of premade common features via shortcodes which is nice.

A minor issue is the menu on the phone. It has a fixed position. If the viewport is smaller than height of the overall menu, the part of menu is not seen.

Overall, a nice theme for the niche.

I would say everything is well prepared. As expected. Hence the site is lack of originality and surprises.
Break the limits and get out of the comfort zone!