Under pure water technology
1. "it's" not "its"
2. IMO instead of "been considered, and now The Water Fed ..." should be "been considered. The Water Fed..." (Because of "now" in the "Law now states")
3. capital "O" for "only."
4. should read "conservatories" (plural) not "conservatory's" (belonging to or part of the conservatory). Small "t" for "Third floor", "etc" for "ect".
5. IMO - it is not the method that often neglects the frames, it is the person, consider re-wording.
On the home page:-
It should be a comma after West Sussex, not a full stop.
...within an 9 mile distance... should be a 9 mile distance
IMO - after area, (comma) should be area; (semi-colon)
We tend to focus... (I would change this to "Our main focus is on" - because you used tend in the previous statement)
Missing comma after "small commercial properties" and put a semi colon after "shop fronts"