Migration · HTML → WordPress

HTML to WordPress without losing what made it fast.

A static HTML site has real virtues — it is fast and nothing breaks. Its cost is that every edit needs a developer. Converting to WordPress makes the site editable without surrendering the virtues: your existing design becomes a proper theme, your URLs stay put, and the performance is preserved deliberately rather than lost to a page builder. The usual failure mode is a conversion that buys editability by giving the speed away — and that is the one thing an HTML to WordPress migration with us is built to avoid.

Get a migration plan See the gotchas
  • Your existing design converted into a clean WordPress theme
  • URLs preserved exactly — often no redirects needed at all
  • Static-site speed kept: lean theme, no builder bloat

Why switch

When businesses come to us for HTML to WordPress.

Every edit is a developer task

Changing a phone number should not require a code deploy. WordPress hands routine edits to your team.

Content cannot scale

A blog, a careers page, a news section — on static HTML each becomes hand-made pages. A CMS makes them workflows.

No structure to build on

Forms, search, users, ecommerce — each is a bolt-on service on static hosting. WordPress provides the platform.

Knowledge lock-in

The site only changes through whoever knows the codebase. A CMS removes the single point of failure.

What moves

What comes across in an HTML to WordPress migration.

Scope your migration ↗︎
  1. Design → converted into a WordPress theme: your HTML/CSS becomes templates and patterns
  2. Pages → recreated as editable WordPress pages with the block editor
  3. Repeating sections → turned into reusable block patterns your team can use on new pages
  4. URLs → matched exactly where possible (about.html → /about/ handled with slugs and redirects)
  5. Forms → rebuilt on a form plugin with spam protection and reliable email delivery
  6. Assets → images and files moved into the media library, optimised on the way in

The HTML specifics

What our HTML to WordPress work covers.

Every platform has traps that generic migration checklists miss. These are the HTML-specific ones — the difference between a clean move and a rescue job.

Conversion is not copy-paste

Wrapping your HTML in a theme technically works and creates an unmaintainable mess. Proper conversion means templates, patterns and theme.json — so the site is genuinely editable, not just hosted differently.

Keep the speed on purpose

Static sites are fast because they do nothing. The WordPress build must protect that: a lean theme, no page-builder overhead, caching that serves pages as fast as the static files did.

.html URLs need a decision

Old links to /about.html should keep working. Either preserved via permalink settings or 301-redirected to clean slugs — decided site-wide, not left to chance.

Hidden dynamic bits

That one PHP contact script or embedded third-party widget needs a proper WordPress equivalent — inventory them before the build, not during launch week.

Editing needs guardrails

The point is editability — but unlimited editability decays the design. Locked patterns and a defined palette keep the site looking like your site a year later.

The theme

Turning your HTML into a WordPress theme.

This is the half of an HTML to WordPress conversion that decides whether the site is still pleasant to own in three years. The same design can arrive as a theme your team edits confidently, or as a pile of templates only their author understands. These are the decisions that separate the two.

Block theme or classic theme

A block theme puts the layout in the editor, which suits a site whose pages genuinely differ. A classic theme keeps templates in code, which suits a site with a few fixed layouts and a team that only edits copy. We pick per project and say why — the wrong choice is not fatal, but it is expensive to undo.

theme.json carries the design system

Your colours, type scale and spacing are declared once, in one file, instead of being repeated across a stylesheet. The editor then offers your palette and nothing else, so nobody can introduce a fourteenth shade of blue on a Tuesday afternoon.

Repeating sections become patterns

The hero, the feature row, the testimonial block — each becomes a registered pattern your team inserts and fills in. That is what lets a converted site scale: new pages get built from the same parts rather than pasted from an old one and quietly edited.

Fixed parts stay in templates

Headers, footers, archives and anything else that must look identical everywhere stays a theme template, not an editable page. Fewer things being editable is a feature — it is the difference between a site that drifts and one that holds its shape.

Your CSS is kept, not replaced

The stylesheet that made the static site fast is the starting point, not something to swap for a framework. We carry it across, split it by template so a page only loads what it uses, and leave the rendered result matching the original.

Process

How the HTML to WordPress migration runs.

Our full process ↗︎

Every migration is a parallel build: your HTML site keeps running while the new WordPress site is built and verified beside it. The switch is a planned window, not a leap.

  1. Audit and inventory. Content, URLs, rankings, integrations — everything that must survive gets listed before anything moves.
  2. Parallel build. The WordPress site is built and the data migrated on staging, while the live site trades on untouched.
  3. Verification. Content counts, redirect map, metadata parity, forms — checked against the inventory.
  4. Cutover. DNS switches in a low-traffic window; the old site stays reachable to us until everything is confirmed.
  5. Aftercare. We watch Search Console, 404s and the numbers for the following weeks and fix what the real world surfaces.

Cost and timeline

What an HTML to WordPress migration costs, and what moves the number.

The full WordPress cost breakdown ↗︎

Two quotes for the same static site can differ by several thousand, and the spread is rarely padding — it is usually that the two firms read the job differently. Rather than publish one figure that would be wrong for most readers, here is what actually moves the number, so you can work out which project you are being quoted for.

How much of the site is genuinely unique

Forty pages built from six layouts is a smaller job than twelve pages that are all different. Count layouts, not pages — that is the number that drives the work, and it is the first thing worth counting yourself before you ask anyone for a price.

How faithful the design has to be

Matching the original to the pixel is a different brief from keeping the look and tidying it up on the way through. Both are legitimate. The first is slower, because every inherited quirk has to be reproduced deliberately rather than quietly improved.

What is hiding behind the static pages

A contact form posting to a PHP script, an embedded booking widget, a hand-maintained pricing table — each needs a real WordPress equivalent chosen and tested. Sites almost always carry more of these than their owner remembers.

How much has to become editable

Making the whole site editable costs more than making the five pages that actually change editable. Drawing that line early is the cheapest way to bring a conversion quote down without losing anything you will miss later.

How much URL history you are carrying

A site whose URLs map cleanly needs little redirect work. One with years of .html paths, old campaign URLs and inbound links from elsewhere needs a redirect map built and tested — worth doing properly, because this is where conversions lose rankings.

Questions

HTML to WordPress questions, answered plainly.

If your HTML to WordPress question is not covered here, send us the details and we will reply with a straight answer.

Ask your question ↗︎
Will the site look exactly the same after conversion?

Yes — the design is yours already. We convert your HTML and CSS into a WordPress theme that renders the same design, then structure it into editable patterns. Visitors see the same site; your team sees an editor where the code used to be.

Will WordPress make the site slower?

Not the way we build it. The speed of a static site is protected deliberately: a lean hand-built theme, no page-builder bloat, and full-page caching that serves HTML as fast as the static files did. Converted sites routinely keep their performance scores.

What happens to our existing URLs?

They survive. Clean paths carry over exactly; .html-style URLs are either preserved or 301-redirected to clean slugs as a site-wide decision. Existing links and rankings keep working either way.

Can parts of the site stay hand-coded?

Yes. A hybrid is common — templated, rarely-changing sections stay as fixed theme templates, while pages your team edits live in the block editor. We draw that line together based on who actually changes what.

Does HTML to WordPress conversion change how the site looks?

No. The design is rebuilt faithfully as WordPress templates, then the parts that should be editable become editable. Visitors see the same site; your team gains a CMS.

The platform itself is documented at wordpress.org.

What do we gain?

Content you can change without a developer, a plugin ecosystem for anything you need next, and security updates for the platform rather than a static site nobody patches.

How long does an HTML to WordPress migration take?

Most conversions are measured in weeks rather than months, and the shape is set by the five stages above: audit, parallel build, verification, cutover, aftercare. What stretches a timeline is rarely page count — it is the dynamic pieces that need a WordPress equivalent, and how long approval takes on your side. We give a date range after the audit, once the inventory is in front of us, rather than guessing before it.

Can we just use an automated HTML to WordPress converter?

You can, and for a simple brochure site it will produce something that loads. What it will not produce is a theme: the output is usually one template with your markup embedded in it, so every future edit is still a developer task — which is the problem you were converting to solve. Automated tools are a reasonable way to see the shape of the job. They are not a substitute for deciding what should be editable and building patterns for it.

Should our converted site be a block theme or a classic theme?

It depends on who edits the site and how much the pages differ from one another. A block theme is the better answer when pages are genuinely varied and your team wants to compose new ones. A classic theme is better when there are a few fixed layouts and editors only change copy and images. We recommend one, explain the trade-off and build it — you are not charged for the debate.

Will we lose our Google rankings in the migration?

Not if the URLs are handled deliberately, which is why they are audited before anything moves. Clean paths carry over unchanged; .html URLs are either preserved or 301-redirected under one site-wide decision. Titles, descriptions and structured data move with the pages, and we watch Search Console for the weeks after cutover so that anything the real world surfaces gets fixed while it is still small.

Who owns the theme code when the project is finished?

You do. The theme is built in standard WordPress — templates, patterns and theme.json — with no dependency on us, no licence to keep paying and no proprietary builder holding the content. Another developer can pick it up and read it, which is rather the point: a conversion that leaves you dependent on one firm has moved the lock-in rather than removed it.

What do you need from us to get started?

The files or the URL of the current site, access to wherever it is hosted and to the domain, and an honest list of anything dynamic that has been bolted on over the years — forms, embeds, tracking, anything that talks to another service. If that list is incomplete the audit finds the rest. Nothing on your side has to change or go offline while the new site is built beside it.

Related

This rarely travels alone.

All migrations Every platform we move sites from, in one place. Custom Development The theme and block engineering behind the conversion. Design systems guide How the guardrails keep it looking designed.