Website development has changed quite a bit in the past few years. The days of hiring a web developer to build you a basic informational site may well be gone. There are several high-quality website builders on the market to get you up and running quickly.
The main overall idea of the website builder software is that you have the information (text and pictures) about your church and they have the design (theme and layouts). You would plug your information into their design and call it a day. Here are some of the main builders I would recommend.
The biggest platform on the web right now is called WordPress. It used to be just blogging but now is used to build websites and apps. If your tech person knows about hosting and setting up a website, they can download the software from WordPress.org and install it to a server for free. If they don't, you can go to WordPress.com and simply start the site without having to worry about hosting the site.
The most important thing about any website is having a member in place to keep it updated. So when choosing your platform, keep ease-of-use in mind. WordPress offers a very clean and simple admin interface to update content. There are also many helpful videos about how to manage your WordPress website on YouTube.
To modify a WordPress site for church use, several WordPress themes and plugins have been created. Here are some to check out:
If you decide to go with WordPress, check out this great explainer article about building church websites with WordPress.
2. More Options
If you decide WordPress is not for you, here are some other options that are well known. I do not have much experience with them, but they are worthy of a good evaluation.
There are actually a lot more options out there (big and small) but these seem to be the ones that keep rising back to the top.