Any incorporated company or body politic, invested with the power of eminent domain under this chapter, by its officers, servants and agents may enter upon lands for the purpose of examining the same, surveying and laying out the lands, ways and easements which it desires to appropriate, provided no injury be done to the owner or possessor of the land; but no company or body politic, under the authority of this section, shall throw open fences or enclosures on any land, or construct its works through or upon the same, or in anywise injure the property of the owner or possessor, without his consent, until it shall have obtained the right so to do in the manner provided in this chapter.