Website update for Christmas (Laravel & jQuery)

Our website has been developed with Laravel & jQuery and so we only want someone who has had a lot of experience dealing with this.

We need someone to update our website to clearly show customers the days we are closed for Christmas. We are open to suggestions as to how this is best shown but were thinking a banner or pop up on the website would be perfect. This would need to be implemented on desktop, mobile and tablet.

We also show an estimated delivery time on checkout which we would also like to be updated to reflect Christmas delivery.

We do have a need for further website development in the near future and so ideally would like to find someone we can use for further projects but this isn't essential.