Last updated: 21st May 2026
A custom WordPress website built by a UK agency in 2026 typically costs between £6,000 and £75,000. Most mid-market business builds land in the £15,000 to £35,000 range. Price comes down to four things: design complexity, the number of integrations you need, content volume, and what you want from the agency after launch. Bigger budgets buy bespoke design, custom functionality, accessibility work, and ongoing support. Not a fancier theme.
This article breaks down what custom WordPress builds actually cost in 2026, what you get at each price band, and where most clients get caught out. We’ve been building custom WordPress sites since 2016, so the ranges below come from quoting and delivering real projects, not from a survey.
Costs at each band fall into roughly four ranges: £6,000 to £15,000 for a small custom build, £15,000 to £35,000 for a standard mid-market build, £35,000 to £75,000 for a complex or sector-specific build, and £75,000 upwards for enterprise. All figures assume a custom build by a UK agency in 2026. They exclude hosting, ongoing maintenance, content creation, and VAT.
At this end of the market you’re getting a custom theme built on an existing framework, not a fully bespoke design from scratch. Expect five to ten unique page templates, basic SEO setup, a contact form or two, and a plugin-based approach to most additional functionality. This works well for small professional services firms, single-location businesses, and anyone whose website is essentially a brochure.
What you won’t usually get at this price: bespoke design from a dedicated UX/UI designer, complex integrations with CRMs or ERPs, custom Gutenberg blocks beyond the basics, or much beyond standard accessibility coverage.
This is where most of our mid-market WordPress work sits, and where the majority of UK agencies pitch their core service. Expect proper UX and UI work from a designer, 15 to 30 page templates, custom Gutenberg blocks tailored to your content team, accessibility work to WCAG 2.2 AA, performance optimisation, and at least one or two third-party integrations such as a CRM, email platform, or booking system.
This band covers the brochure site for a multi-location business, the website for a mid-size professional services firm, a content-heavy charity site with donation functionality, and most UK school websites. Schools often need specific features around staff profiles, parent communications, prospectus downloads, and accessibility, which is why we sometimes recommend CraftCMS over WordPress for international schools. WordPress remains the common choice for UK state schools and independent prep schools.
At this price you’re getting a bespoke design and build with significant custom development. Expect 30+ templates, multiple integrations (CRM, ERP, payment gateways, third-party data sources), custom content types beyond pages and posts, possibly multilingual setup, custom user roles and permissions, and a proper discovery and strategy phase before any design begins.
Typical projects in this band: a membership organisation with paid tiers and gated content, a council site with service finder and accessibility-heavy requirements, an international school with multi-language content, or a B2B business with deep integration into a sales or marketing stack.
For large organisations the build is rarely ‘just WordPress’. You’re often looking at WordPress as a headless CMS feeding a React or Next.js front-end, complex single sign-on and identity management, custom REST or GraphQL APIs, content syndication across multiple sites, and substantial dev-ops work around hosting, caching, and security.
Projects in this band can run to £150,000 or more depending on scope. The price covers the build plus a discovery process that might involve six to eight weeks of stakeholder interviews and technical scoping before anyone touches a design tool.
Six factors account for most of the variance in price between projects. The first three (design complexity, custom functionality, integrations) typically shape the headline figure. The other three (content, accessibility, discovery) determine how comfortable that figure looks once the project actually runs.
Agency designers typically charge based on the number of unique screens. A small brochure site might need five to eight designed templates. A complex site might need 30 or more. Each one takes time, and each one ripples through to development.
The brief matters here too. ‘Modernise our current look’ takes far less designer time than ‘build us a fully bespoke visual identity for the web’. If you already have a strong brand with clear web guidelines, you’ll save money. If the website is also where the brand gets defined for the first time, expect that to add to the design budget.
This is the single biggest cost driver after design. Every piece of functionality that isn’t covered by a standard plugin needs to be specced, built, and tested. Examples we see often: cost calculators, custom search and filtering, gated content with user-specific dashboards, booking systems, custom CRM integrations, and bespoke Gutenberg blocks tailored to the editorial workflow.
A plugin-based approach can shortcut this, but at the trade-off of long-term flexibility, performance, and ongoing licence costs.
CRMs (HubSpot, Salesforce, Pipedrive), email platforms (Mailchimp, Klaviyo, Brevo), accounting systems (Xero, QuickBooks), event management, payment gateways, and ERPs all add cost. Some integrations are quick if there’s a well-documented official plugin. Others require custom middleware, especially if the third-party system is legacy or has an awkward API.
On a recent ecommerce project for Virtual Headquarters we integrated WooCommerce with Chargebee for subscription billing, and the difference between a documented modern API and a legacy one can be ten times the development effort. Get this scoped properly upfront or your project budget will move.
Migrating an existing site of 50 pages onto WordPress is usually cheap and quick. Migrating a 5,000-page legacy site with complex URL structures, redirects, and archived content is expensive and slow. Most clients underestimate this.
If you also need help with copywriting, photography, or video, factor in another £5,000 to £25,000 depending on volume. Some agencies (us included) sub-contract this work rather than holding it in-house, which means you can buy it as part of the project or run it separately.
Building to WCAG 2.2 AA isn’t optional for public-sector clients, schools, and anyone trading with EU consumers (since the European Accessibility Act came into force on 28 June 2025). Done properly it adds roughly 10% to 20% to the build cost. Done badly it costs you more later when complaints surface or audits flag the issues.
Bigger projects need bigger discovery phases. A £10,000 project might have a two-hour kick-off and an outline brief. A £60,000 project should have several weeks of structured discovery: stakeholder interviews, content audits, user research, sometimes light user testing. Strategic work that comes before design is often the difference between a website that does its job and one that doesn’t.
Yes, often significantly. The question is whether the saving holds up over the life of the site. Templates and page builders work below a certain complexity threshold. Above that threshold they tend to cost more in workarounds than a custom build would have cost upfront. Here’s how the main alternatives compare.
You buy a premium theme (typically £50 to £100), an agency customises the look and feel, drops in your content, and you go live. This works for very small businesses with simple needs. The constraints are real: you’re limited to whatever the theme supports, you’ll struggle to evolve the site beyond a certain point, and you’re vulnerable when the theme author abandons the project or introduces breaking changes.
Elementor, Bricks, and Breakdance let an agency build sites faster than full custom theme development. The result looks bespoke but the underlying flexibility is constrained. We use page builders selectively and tend not to recommend them for sites with serious editorial volume. They can introduce performance and accessibility issues that take significant work to fix.
WordPress.com (paid plans), WP Engine’s Atlas, or one-click hosted WordPress at providers like 20i can get you a working site for the price of a hosting subscription. You’ll do the work yourself or hire someone hourly. Suitable for personal sites, side projects, and very early-stage businesses. Not suitable for anything mission-critical, anything customer-facing for a serious business, or anything that needs to integrate with other systems.
If your site is mostly going to be a brochure with a small product range, Shopify can be cheaper and faster than custom WordPress. If you’re a school or non-profit with complex editorial workflows, CraftCMS is sometimes the better choice (and we build both). If you’re a SaaS business wanting a marketing site with deep product integration, Webflow or a headless setup might suit better. The honest answer is that custom WordPress isn’t always the right call, and we say so when it isn’t.
For an ecommerce-specific breakdown, see our article on how much an ecommerce website costs in the UK.
The build is the first cost. Ongoing costs are smaller but they continue forever. Budget £130 to £1,200 a month total for hosting, maintenance, and licences on a typical mid-market WordPress site.
Shared hosting for a small WordPress site can run £10 to £40 a month. Managed hosting with proper performance and support sits in the £80 to £200 range. Dedicated or VPS hosting for high-traffic sites starts at £150 and goes up steeply. We host most of our clients on Hetzner and 20i with Cloudflare in front, which keeps the cost reasonable while giving us proper performance and observability.
A proper retainer covers WordPress core, theme, and plugin updates, security monitoring, backups, uptime monitoring, and a defined response time on incidents. The lower end is suitable for small sites with limited custom development. The upper end covers larger sites with custom code, multiple integrations, and stricter SLA requirements.
The single biggest indicator of whether a retainer is real or theatre: response time SLAs in writing, with clear consequences when they’re missed. If your current supplier won’t sign an SLA, they almost certainly aren’t running one in practice. We cover what to expect in our WordPress maintenance and support plans.
Most non-trivial WordPress sites end up with a stack of premium plugins: Gravity Forms or Fluent Forms, ACF Pro, WP Rocket, Rank Math Pro, security plugins, backup plugins, and any specialist plugins your sector needs. Total annual licence cost varies widely. A site with 15 premium plugins can easily run £1,500 a year in renewals.
Domain renewals, premium SSL certificates (where the free Let’s Encrypt isn’t enough), email signature management, and other small recurring costs. Usually not significant against the rest.
Timelines scale with cost band, assuming a competent agency and a client who responds within a few days at each milestone.
The factors that delay projects, in order: slow content delivery from the client, late-stage scope changes, indecisive stakeholder groups, and integrations with third parties that take longer to specify than to build. We’ve had projects with all content ready before a single design was approved, finished in ten weeks. We’ve had projects with longer discovery alone than that.
If you’re being quoted two weeks for a custom build, that isn’t a custom build. That’s a templated site with your logo dropped in, and you should ask the agency to be clear about which.
Honest cases where we’d point you elsewhere, based on the projects we’ve delivered and the briefs we’ve declined:
If your total budget is under £4,000 and your needs are genuinely simple, you’ll get more for your money from a high-end template customisation than from a custom build that has to be heavily compromised to fit the budget.
If you’re primarily selling products and your range is fewer than 200 SKUs with simple shipping rules, Shopify will often get you live faster, with better in-box ecommerce features, than a WooCommerce build at the same price.
If you’re a school with complex editorial workflows, multiple language requirements, or strict accessibility obligations, we’d consider CraftCMS alongside WordPress and let the brief decide. CraftCMS has stronger editorial controls out of the box, though WordPress has a wider plugin ecosystem.
If you’re a SaaS business wanting deep integration between your product and marketing site, a headless setup (WordPress headless, Sanity, or Contentful as the CMS, Next.js as the front-end) can outperform a traditional WordPress build for the same money. We build these too.
WordPress isn’t a default answer. It’s a tool that suits a wider range of cases than anything else, but not every case.
A short list. If an agency can’t answer these confidently, that’s the answer to your bigger question.
Get the scope in writing, including specific page templates, specific functionality, specific integrations, and specific content migration. ‘Up to 10 pages’ is fine. ‘A few pages, depending on what you need’ is the start of a scope dispute.
If the agency talks about WCAG 2.2 AA, automated testing, and manual review by someone with accessibility training, you’re in good hands. If they mention only ‘we will make it accessible’ with no detail, push harder.
Custom WordPress builds in the UK should hand over to the client outright: full code ownership, all source files, all design assets, no recurring licence on the build itself. Some agencies hold ownership and charge you to leave. Read the contract.
You should know exactly where the site is hosted, what the SLA is, what the backup arrangement is, and what happens if you want to move. Agency hosting can be excellent (ours is) but it should be optional, with a clear path to migrate elsewhere.
Get this priced and contracted at the same time as the build, not as an afterthought. Agencies that quote a build without offering a maintenance arrangement either don’t offer ongoing support, or they’re hoping you forget. Neither is good.
A good agency has case studies they’re proud of and can talk you through. A great agency can introduce you to a current client at the same kind of organisation. Take the call. Our portfolio covers schools, charities, councils, ecommerce subscriptions, and B2B clients.
We’re a UK web design and development agency with offices in Bristol and Poland, building custom websites since 2016. Our typical client is a mid-market business, school, charity, or professional services firm with a website that genuinely matters to the operation.
For most projects we use WordPress with the block editor, bespoke ACF Pro blocks built for your specific content needs, our own theme starter rather than a premium theme, and a hosting setup on Hetzner or 20i with Cloudflare in front. Where the brief points elsewhere we use that instead. We’re platform-agnostic by policy.
What we hand over: full source code, all design files, documentation, training for your team, and the option of a maintenance retainer with response-time SLAs in writing. You own everything. If you ever want to leave, you can, and we’ll help you migrate cleanly.
Someone is designing and building it from scratch for you, rather than you customising someone else’s design. The longer answer is that bespoke design pays back over time in flexibility, performance, and the ability to evolve without fighting a theme. Templates work well below a certain complexity threshold. Above that threshold they cost more in workarounds than a custom build would have cost upfront.
Probably not from a UK agency. You might get an excellent templated site, or a small custom build from a freelancer with a tight scope. A full agency custom build in 2026 starts higher, both because the work involved hasn’t got cheaper and because designer and developer rates in the UK have continued to rise.
Yes, if it’s properly maintained. WordPress’s security record looks worse than it is because so many WordPress sites are running outdated plugins or unmaintained installations. A current WordPress installation with up-to-date plugins, sat behind Cloudflare, with regular backups and active monitoring, is as secure as any comparable CMS. Almost every WordPress site that gets compromised was running known-vulnerable software at the time.
For most mid-market sites, £200 to £500 a month covers a reasonable retainer including hosting, updates, monitoring, backups, and a small amount of time for changes. Larger sites with custom integrations or strict SLAs sit higher. The cheapest ‘maintenance’ plans on the market typically cover updates only, with no monitoring, no SLA, and no time included for actual changes.
You should. Standard practice for UK agencies is to transfer all code, design files, and content to you on final payment. If you can’t get an answer on this in writing before you sign, that’s a red flag.
Yes. WooCommerce is the most popular ecommerce platform in the world and bolts onto WordPress cleanly. Cost depends on your product range, shipping rules, payment integrations, and whether you need subscriptions (where Chargebee or WooCommerce Subscriptions adds complexity). See our ecommerce website cost article for detail.
Only if the website is doing £30,000 worth of work. For most mid-market businesses, the website is the first impression for prospects, a major lead source, and often the operational hub for content, support, and sales. For those businesses, a properly-built custom site pays itself back quickly. For a hobby project or pre-revenue side business, it doesn’t, and a templated site is the right call.
If you’re costing a custom WordPress website for a mid-market business, school, charity, or professional services firm, we can give you a clear range and a clear scope within a couple of conversations. We don’t quote until we’ve understood the brief, but we’ll tell you on the first call whether a project is broadly within your budget or not.
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