Service 01 · Development

Custom WordPress Development

Custom themes, plugin development, and full CMS builds — from scratch or extending an existing site. We work with Gutenberg FSE, Elementor, ACF and custom post types to ship sites that are fast, maintainable and built to grow.

$800
Starting price
7–21 days
Typical delivery
120+
Sites shipped
90+
Avg. PageSpeed score
Overview

Built on WordPress,
built to last

WordPress powers over 40% of the web for a reason — it's flexible, well-supported, and your team can actually manage content without calling a developer every time. But most WordPress sites are held together with bloated page builders and mismatched plugins that slow everything down.

We build the opposite: lean, hand-coded WordPress sites that load fast, pass Core Web Vitals, and give your content team a clean, intuitive editing experience — whether that's Gutenberg full-site editing, a custom admin panel, or a tailored Elementor setup.

Every project starts from your actual requirements, not a template. If you need a five-page brochure site or a custom post-type-driven directory with 40 fields, we scope it, quote it once, and build exactly that.

  • Businesses replacing a slow or outdated WordPress site
  • Agencies needing a reliable dev partner for client builds
  • Startups launching a marketing site ahead of a product release
  • Anyone tired of page-builder bloat tanking their PageSpeed score
Quick facts
Starting at$800
Delivery time7–21 days
Best forBrochure to complex sites
PlatformWordPress (self-hosted)
Support included30–90 days
Start a project →
What's included

Everything your
WordPress build needs

Custom theme development
A theme built for your design and content model, not squeezed into a generic template.
Gutenberg full-site editing
Custom blocks and templates your team can rearrange without breaking the design.
Plugin development
Custom functionality that doesn't exist off-the-shelf, built as a proper maintainable plugin.
ACF & custom post types
Structured content models — directories, portfolios, listings — with clean custom fields.
Elementor / page builder
When a visual builder makes sense, we set it up properly — optimised, not bloated.
Migrations & replatforming
Moving from Wix, Squarespace, or a legacy WordPress build — no content or SEO lost.
Tech we use

Modern stack,
battle-tested

PHP 8
Gutenberg / FSE
ACF Pro
Elementor Pro
Divi Builder
Bricks Builder
Custom Post Types
WP-CLI
Composer
Git
REST API / GraphQL
Redis object cache
Query Monitor
How it works

From brief to launch
in as little as 7 days

01
Scope & quote
We map out pages, content types and integrations, then send a fixed price — no surprises later.
02
Design in Figma
You review and approve every screen before we write a line of theme code.
03
Build
Theme, blocks and custom fields get built against a live staging link with daily updates.
04
QA & launch
Cross-browser testing, PageSpeed audit, content migration, then we go live and hand over the keys.
Pricing

Three ways
to get built

Every WordPress Development project is fixed-price. These are the three most common shapes — tell us yours and we'll quote it exactly.

Brochure Site
A focused custom theme for 1–5 pages
$800 one-time
  • Custom theme, up to 5 pages
  • Gutenberg blocks for content editing
  • Mobile-responsive design
  • Contact form + lead capture
  • PageSpeed 90+
  • 30 days post-launch support
  • Custom post types
Start a project →
Complex / Custom App
Directories, portals, or custom plugin-driven builds
$4,500+ project-based
  • Everything in Custom Business Site
  • Custom plugin development
  • Third-party API integrations
  • User roles & front-end submissions
  • Load testing & scaling review
  • 6 months post-launch support
Start a project →

Need something in between? Tell us about your project → Every custom build gets a tailored quote.

“fluxweb rebuilt our WordPress site from a bloated Divi build into something that actually loads fast. PageSpeed went from 41 to 96, and our editors finally have a CMS they don't dread using.”

JM
Jordan M.
Marketing Director, B2B SaaS company
FAQ

Questions we
hear most

Still have questions? Drop us a message →

Both, depending on your needs. For most performance-critical projects we build custom Gutenberg blocks. If your team is already trained on Elementor or you need rapid layout changes, we'll set that up properly instead — optimised, not bloated.
Yes — we regularly take over existing WordPress codebases for new features, redesigns, or performance fixes. We'll audit the theme and plugins first and flag anything that should be replaced before we build on top of it.
A rough page list or sitemap, any brand assets you have, and a sense of what content types you need (blog, portfolio, directory, etc.). If you have a Figma design already, even better — but it's not required, we can design it with you.
Yes, that's the point. We build with your content team in mind — clean Gutenberg blocks or a simple Elementor setup, whichever fits your workflow — and include a short handover walkthrough so you're not locked out of your own site.
No — development and hosting are quoted separately. We'll recommend and configure managed WordPress hosting (Kinsta, WP Engine, Cloudways) suited to your traffic, but you own the hosting account.
Explore more

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Free consultation

Ready to build your
WordPress site right?

Tell us about your project and we'll send a fixed quote within 24 hours — no sales pitch, no obligation.

Free WordPress audit included · Response within 24 hours · No commitment required