What website maintenance actually costs
Ask three people what website maintenance costs and you'll get answers from zero to several thousand a month. All three can be right, because "maintenance" covers everything from renewing a domain once a year to having someone on call when the checkout breaks.
So the useful question isn't what it costs. It's what you're buying, and which parts you actually need.
The costs you have whether or not you hire anyone
These exist even if you never pay a person. Budget them first.
Domain registration. Annual, and usually the cheapest line on the list.
Hosting. Monthly or annual. Shared hosting for a small brochure site is inexpensive; anything with a database, a store, or real traffic costs more.
SSL certificate. Often included with hosting now. Check rather than assume.
Platform and plugin fees. If you're on a website builder, that subscription is your platform cost. If you're on WordPress, it's whatever premium plugins and themes you're running.
A small brochure site can run on very little. A store with a booking system and a handful of paid integrations will cost meaningfully more before anyone touches it.

What you're paying a person for
This is where the range gets wide, and it comes down to which of these you're buying.
Monitoring. Someone notices when the site is down, slow, or broken — ideally before you do. Largely automated, cheap to provide, and genuinely valuable.
Updates and patches. Platform, plugin, and security updates. Boring, necessary, and the thing most neglected sites are missing. Skipping this is how small sites get hacked.
Backups. Automated, stored somewhere other than the site itself, and tested. Untested backups aren't backups.
Content edits. Changing hours, adding a service, swapping photos, publishing a post. The part most owners actually want and the part most quotes are vaguest about.
Technical performance. Page speed, mobile behaviour, broken links, the technical basics that affect search.
Being on call. Someone who answers when something breaks. This is what you're really paying for at the higher end, and it's worth more than it looks until the day you need it.
Rough shape of the pricing
Hedged deliberately — rates move and vary a lot by market.
Low end. Little more than the platform costs, with automated updates and backups running unattended and nobody looking at it. Fine for a simple site that rarely changes.
Middle. A small monthly fee covering monitoring, updates, backups, and a limited amount of edit time. This is where most small businesses land and where the value is usually best.
Higher end. Larger monthly retainers including generous or unlimited edits, performance work, and fast response. Justified when the site is genuinely part of how you make money — bookings, orders, lead forms.
What moves you up the range: an online store, a booking system, custom code, frequent content changes, or a site where downtime costs you real money in an afternoon.
What "unlimited edits" usually means
You'll see this a lot, and it's rarely dishonest — but it's rarely unlimited either.
It generally means unlimited small requests, handled in a queue. Change some text, swap an image, update your hours: yes. Build a new section, add a booking system, redesign a page: that's a project, quoted separately.
Ask two questions. What counts as an edit rather than a project? And how fast do edits get done — same day, same week, or whenever?
What you can skip
Not everything on a maintenance quote is worth paying for.
Monthly reports nobody reads. If the report is the deliverable, that's a warning sign. Reporting should be a byproduct of work, not the work.
SEO bundled into maintenance. Real SEO is a separate discipline with separate effort. When it's folded into a maintenance fee it usually means very little of it is happening.
Security add-ons on top of updates. Keeping the platform patched and backed up is most of small-site security. Be sceptical of premium security tiers layered on top.
A retainer for a site that never changes. If you genuinely update your site once a year, you need hosting, automated backups, and someone's phone number. Not a monthly fee.
Questions to ask before you sign
"What exactly is included each month?" In deliverables, not hours.
"What counts as an edit versus a project?" The most common source of surprise invoices.
"How quickly do things get done?" A cheap plan with a two-week turnaround is expensive when your hours are wrong going into a holiday weekend.
"Where are the backups, and have they been tested?" Ask when the last restore was attempted.
"Who owns the hosting and the domain?" Both should be in your name. If your maintenance provider owns your domain, leaving becomes a negotiation.
"What happens if I stop?" You should keep the site, the domain, the hosting access, and the content.
The honest summary
For most small businesses, the right answer to website maintenance is a modest monthly fee covering monitoring, updates, backups, and a reasonable amount of edit time — plus a clear understanding of what counts as a project.
Paying nothing and hoping is how sites go down quietly and stay down for a week. Paying a large retainer for a site that changes twice a year is money that would do more elsewhere.