Blockout roller blinds are thus named because they block out light (as well as heat). They are therefore ideal for bedrooms. Translucent roller blinds reduce light/heat and are perfect for areas where privacy is desired but some light is still preferable. Transparent/sheer roller blinds reduce light/heat, but still enable a limited view. Finally, screen/sheer roller blinds reduce light, heat and glare, but maintain the view.
Roller shades are the most economical type of blind, running from $20 to $60 for a 27 inch window.
Costs vary greatly by region (and even by zip code). To get free estimates from local contractors, please indicate yours.