Skip to content
zelvorm
01 · Web Development04 of 06

Custom themes and blocks your team will love, without the plugin pile that slows most WordPress sites down.

WordPress powers a huge share of the web because it's easy to edit. It gets slow and fragile when it's built with heavy page builders and dozens of plugins. We build lean, custom WordPress sites with blocks designed for your content, so editing stays easy and the site stays fast.

Start a project
What's included
Two-factor login on every admin account
2FA
Two-factor login on every admin account
Off-site backups on sites we host
Daily
Off-site backups on sites we host
Typical timeline for a custom theme
4–6 wks
Typical timeline for a custom theme
theme.jsonblocks.php
1
2
3
4
5
6
7

$ wp deploy --prod

Live · tests passed

WordPress development · illustration
Custom block themesGutenberg blocksWooCommerceSpeed optimisationSecurity hardeningPlugin auditsMigrationsManaged hostingCustom block themesGutenberg blocksWooCommerceSpeed optimisationSecurity hardeningPlugin auditsMigrationsManaged hosting
Sound familiar?

The problems we hear most often before someone asks us about WordPress development.

01

A page builder slowed everything down

Drag-and-drop builders load huge amounts of code on every page. The site scores badly on Core Web Vitals and feels sluggish on phones.

02

Forty plugins and counting

Every plugin is another update, another conflict and another security risk. Nobody remembers what half of them do.

03

Editing breaks the layout

One wrong click in the builder and the page falls apart, so the team stops editing and the site goes stale.

What's included

01

Custom block theme

A theme built for your brand on the block editor, with theme.json for consistent colours, type and spacing.

02

Custom blocks

Blocks designed for your content, such as case studies, team cards or pricing tables, that can't be broken by accident.

03

Plugin audit

We replace or remove plugins that slow the site or add risk, and keep only well-maintained ones.

04

Speed work

Image optimisation, caching, critical CSS and script loading tuned until the site passes Core Web Vitals.

05

Security hardening

Two-factor login, least-privilege roles, firewall, automatic minor updates and off-site backups.

06

Migration and hosting

Moves from other platforms or old WordPress builds, onto hosting that's fast, monitored and backed up.

How we do it

You follow every step live in Mission Control, your project dashboard: tasks, files, approvals and a launch forecast.

  1. 1

    Audit

    We review your current site, plugins, hosting and how your team edits, then agree what to keep and what to rebuild.

  2. 2

    Design the blocks

    We design the blocks and templates your content needs, so editors get flexibility within a system.

  3. 3

    Build and migrate

    Theme and blocks built on staging, content migrated and checked, redirects prepared.

  4. 4

    Launch and train

    Launch with monitoring and backups in place, then a training session on the new editor and a recorded guide.

2FA

Two-factor login on every admin account

Daily

Off-site backups on sites we host

4–6 wks

Typical timeline for a custom theme

Built for

Who this is for.

    Marketing teams who publish often
    Sites slowed down by page builders
    WordPress sites with too many plugins
    Organisations moving to WordPress from another CMS
Tools we useNext.jsReactWordPressLaravelNode.jsTailwind CSSVercelCloudflare
Helpful extras

Try it yourself, or see what's built in.

Questions

WordPress development, answered.

Something else on your mind? Ask the Zelvorm Concierge in the corner, or talk to the team.

We build with the native block editor and custom blocks instead. It loads far less code, so sites are faster, and editors get blocks designed for their content.

More in Web Development

The rest of the toolkit.

All of Web Development
From the Journal

Read before you decide.

Maintenance & Support

Website Security Basics for Small Businesses

Most website attacks aren't targeted; they're automated. The security basics every small business site needs: updates, logins, backups, HTTPS, forms and a plan for when things go wrong.

6 Nov 2026 · 4 min read

Web Development

Core Web Vitals in 2026: What Actually Moves Your Google Ranking

Core Web Vitals still matter in 2026, but not the way most guides claim. Here's what Google actually measures and what's worth fixing first.

27 Feb 2026 · 5 min read

Web Development

Next.js vs WordPress: Which Should You Build Your Business Site On?

Next.js and WordPress solve different problems. A practical comparison of speed, editing workflow, cost, and scalability to help you choose correctly.

11 Feb 2026 · 6 min read

Next in Web Development

Website maintenance & support

Start a project

Tell us what you're building. You'll hear from a human within 24 hours, with an AI Blueprint already waiting.

Start a project
Book a call

contact@zelvorm.com · Avg. response under 24h