Custom WordPress Plugin Development for Teams Who've Outgrown Off-the-Shelf

Off-the-shelf plugins are built for the average case, and your business usually isn't the average case. Wiselogix Technologies builds custom WordPress plugins scoped to exactly what you need — nothing bundled that you'll never use, and nothing missing that forces you to bolt on a second plugin.

Every plugin we deliver is documented, follows WordPress coding standards and is built to stay compatible as WordPress and PHP evolve.

WordPress plugin development services

Custom plugin development

Plugins built from a clear specification for CRMs, booking systems, custom checkout logic or any workflow that doesn't exist off the shelf.

ACF Pro field groups and custom post types

Structured content models that make the WordPress admin genuinely usable for your content team.

REST API and webhook integrations

Connecting WordPress to your CRM, ERP or other third-party services through custom endpoints and webhooks.

Plugin maintenance and updates

Keeping custom plugins compatible with new WordPress and PHP versions, with bug fixes and small feature additions.

Plugin performance audits

Finding and fixing the plugins that are slowing your site down, whether they are custom or from the marketplace.

Taking over existing plugins

Plugins inherited from another developer, reviewed with a code audit before anything changes, then fixed, extended or rebuilt as needed.

Common plugin projects

• CRM and ERP integrations — syncing leads, customers or orders between WordPress and the systems your team already uses.
• Booking and scheduling — custom booking flows built around your services, availability rules and confirmation steps.
• Custom checkout logic — pricing rules, fees, validation and fulfillment steps that standard WooCommerce settings can't express.
• Content and admin tools — custom post types, field groups and admin screens that make managing structured content straightforward.

Build, extend or customize?

A new plugin isn't always the answer. If an existing plugin already covers most of what you need, extending it is usually faster and more economical than a rebuild. If nothing fits, we build from scratch. We'll give you an honest recommendation before any work is quoted.

Built to WordPress standards

We follow the WordPress coding standards, document every plugin and test against upcoming WordPress releases, so updates to core are far less likely to catch you by surprise. You receive the full source code, and it is yours.

Building a whole site or store? See web development and WooCommerce development.

How a plugin build works

1. Discovery and specification. Requirements, edge cases and the data model, captured in a functional specification both sides sign off on before code is written.
2. Core development. Custom post types, fields and the core plugin logic, built and tested in a local WordPress environment.
3. Integration and staging. Connections to third-party APIs or CRMs, deployed to a staging site for your review.
4. Quality assurance and handover. Testing across browsers and themes, documentation, and a walkthrough video so your team can maintain the plugin.

Frequently asked questions

How much does a custom WordPress plugin cost?

It depends on complexity: a simple custom post type integration sits at the lower end, while a plugin with third-party API integrations and a full admin interface sits higher. We provide a fixed quote after the discovery call rather than an hourly estimate.

Can you fix or take over a plugin another developer built?

Yes. We start with a code audit to understand what is there, then quote based on what needs fixing versus rebuilding.

Will a custom plugin break when WordPress updates?

We build to WordPress coding standards and test against upcoming releases specifically to avoid that, and maintenance plans keep plugins compatible over time.

Do I own the plugin code?

Yes. You receive full ownership of the source code, as with every project we deliver.

Do you offer ongoing plugin maintenance?

Yes. Compatibility testing against new WordPress and PHP releases, bug fixes and small feature additions are available on a monthly basis.

Discuss your plugin project

Tell us what you need, where things stand today and what a good outcome looks like, and we'll recommend a sensible scope and next step. Request a quote or contact us to talk it through.