https: Not Showing

4 of my websites made on the new website builder are not showing that they are secure https.
They still show http  but my other sites built on the new website builder are showing https.
Why is this? Is there something that I need to do?
The websites are: affordablebathroomsolutions.com   askthetileman.com  bathroomremodelfortlauderdale.com  & bathroomvanitiesfortlauderdale.com 
Thanks for your help.