Short answer: website maintenance cost is three things added together: fixed running costs (domain, hosting, email, premium licences), the time it takes to update, back up and monitor the site each month, and a buffer for fixes. For a typical small business WordPress site the time part is usually one to four hours a month. Multiply that by your developer's rate, add your running costs, and you have a realistic budget before you look at any maintenance plan.
Small business owners tend to find out what maintenance is worth on the day a plugin update breaks the contact form or the site gets flagged for malware. This guide breaks down your website maintenance cost line by line: what you are paying for, which parts you cannot skip, and how to compare website maintenance plans without being sold things you do not need.
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Why WordPress maintenance matters more in 2026
WordPress core itself is rarely the problem. Plugins are. Patchstack's State of WordPress Security in 2026 report counted 11,334 new vulnerabilities in the WordPress ecosystem during 2025, up 42% on the year before. 91% were in plugins, 9% in themes, and only six in core. The same report found that heavily targeted vulnerabilities were mass-exploited within a median of five hours, and that 46% had no patch available when they were disclosed.
For a small business that means two things. Updates cannot wait for a quiet month, and fewer plugins means less risk. The UK National Cyber Security Centre gives the same advice for all software: apply updates promptly and remove what you no longer use.
Fixed running costs
These are the parts of your website maintenance cost you pay whoever looks after the site. Go through last year's card statement and list every renewal. Most owners find at least one licence for a plugin they no longer use.
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Domain name: an annual renewal. Watch for registrars that discount the first year of a
.co.ukor.comand charge much more on renewal. - Hosting: the biggest variable. Cheap shared hosting suits a brochure site with modest traffic. WooCommerce shops and busy sites need managed WordPress hosting or a VPS. Check that daily backups and a staging site are included, as they save paid time later.
- Business email: Google Workspace or Microsoft 365, charged per user per month.
- Premium plugin and theme licences: page builders, form plugins, SEO plugins, caching (WP Rocket's single-site licence is listed at $59 a year) and backup tools. Licences must stay active to receive security updates.
- SSL certificate: usually free through your host with Let's Encrypt. Paying separately for a basic certificate is rarely necessary.
The monthly maintenance work
A broken enquiry form costs more than any other fault because nobody notices it. Our post on traffic but no enquiries shows how often that is the real cause of a quiet month. Speed also drifts as plugins and images pile up; our speed optimisation service exists for sites where it already has. This is what a website maintenance plan should be doing each month:
- Backups stored off the server, with a restore tested at least every quarter. A backup you have never restored is a hope, not a backup.
- Updates to WordPress core, plugins and themes, applied on a staging copy first, then checked on the live site.
- Uptime monitoring with alerts, so you hear about downtime before a customer tells you.
- Security scanning and a firewall, plus a review of admin users and old accounts. New plugins and tags also need checking against your cookie consent setup.
- Form and checkout testing after every batch of updates.
- Speed and Core Web Vitals checks.
- A short report showing what was updated, anything that failed, and what needs a decision from you.
Work out your own website maintenance cost
Rather than comparing headline prices, estimate the hours your site needs, then run the numbers. Example: a site needing two hours a month, with a developer charging £45 an hour, costs £90 a month in time. Add hosting, email and licences spread across twelve months, plus a 20% buffer for the odd fix, and you have your real monthly website maintenance cost. Swap in your own rate and hours; the method matters more than the example numbers.
If a website maintenance plan costs far less than your estimated hours, ask what is left out. If it costs far more, ask what the extra covers. Content edits, SEO work and design changes are often bundled in, which is fine if you use them and wasteful if you do not. Rough time needed per month:
- Simple brochure site, under 15 plugins, few changes: around one hour.
- Active business site with a blog, several forms and integrations: two to three hours.
- WooCommerce shop with payment gateways, stock and shipping plugins: three to five hours, plus more around peak seasons.
How to compare website maintenance plans
Ask every provider the same questions. The last one matters most, because maintenance should never become a way to lock you in. If you are choosing a developer at the same time, our guide to hiring a WordPress developer for a small business covers the other questions to ask.
- Are updates tested on staging before going live?
- Where are backups stored, how long are they kept, and when was a restore last tested?
- What is the response time if the site goes down, and is that in writing?
- Is malware clean-up included or charged extra?
- How many hours of changes are included, and do unused hours roll over?
- Are the hosting account, domain and licences in your name?
- Can you cancel with a month's notice and receive full admin access and a backup?
What you can do yourself
If budget is tight, handle part of this in-house and pay a developer only for the risky parts. Turning on automatic minor updates for WordPress core and well-maintained plugins is sensible. Leave major updates, page builders and WooCommerce on manual so someone checks the site afterwards. The WordPress.org guide to updating explains the options.
- Do yourself: content edits, blog posts, checking forms weekly, reviewing Search Console for errors, removing plugins you no longer use.
- Pay for: major plugin and PHP version updates, WooCommerce updates, security clean-up, performance fixes and anything involving the theme's code.
Questions we get asked
Is website maintenance necessary for a small site?
Yes, if the site runs WordPress or another CMS with plugins. A site left without updates for a year is a common target for automated attacks, and cleaning up after one costs more than a year of maintenance.
Does my hosting company handle WordPress maintenance?
Usually only the server. Most hosts keep the server patched and may back it up, but plugin updates, testing and fixing broken pages remain your job unless you pay for managed WordPress hosting that includes them.
How often should a website be updated?
Security updates as soon as they are released. Other updates weekly or fortnightly, with a check after each batch.
Is website maintenance cost tax-deductible for a UK business?
Ongoing website running costs are generally treated as an allowable business expense, but confirm your own position with your accountant.
Should I rebuild instead of maintaining an old site?
If the theme is abandoned, the site relies on plugins that no longer receive updates, or maintenance takes more hours each month than it used to, a rebuild often costs less over two or three years.
Need someone to look after your site?
Every website we build includes 30 days of free support after launch, followed by an optional monthly website maintenance plan covering updates on staging, off-site backups, monitoring and form testing. See our small business website development service and pricing, or send us your site and tell us what worries you about it.
