I recommend Thescreenmedic to anyone with an iPhone or Samsung phone.
They got proper machines like auto laminate machine,vacuum chamber to get rid of bubbles and they don't use UV Glue like a lot of your corner shop repair shops use they use OCA bonding sheets like samsung factory use.Read about my post here about them-
For some reason you can't see there price listings at the moment but you can get an idea of some of there prices from there ebay shop but your better off going direct through there website-
Phone: 0800 907 8597 / 0151 328 0050 (9.30am - 5.00pm)
give them a ring see if they do s7edge wholes screen repair not sure if they do glass only think they do for s6 edge soon for £60 which is awesome price.
They do have sales on every so many months (on Ebay) so what might cost £30 will be put on for a week long sale for £20 (costing £25 no change on there main site) normally they do this after a holiday break. Threy do a of trade with other repair shops as they are the best at what they do.