Glass curtain enclosures - Vera area

Hi, 

Has anyone had a 'glass curtain' type enclosure installed and if so have you been pleased with the results and value for money? What kind of costs - I am looking about enclosing 20m2?. 

Additionally I would be grateful for any recommendations in respect of companies that fit these - Spanish or English (and ones to avoid - I have read some negative stuff about a company called speedyfit). 

Thanks, 

Syd 

Be aware, depending where you are,  you may need permission from the town hall (licence) and if  in  a community, permission from the community too.

We have had some terraced areas enclosed on our complex (AA Resort) that have drawn the attention of Vera Town Hall, even though they were overlooked by the President.I believe the Town Hall are asking for greater tax from the properties in question.