Custom WordPress Plugin Development

When no off-the-shelf plugin does what your business needs, we build it. Price calculators, booking engines, workforce systems and API integrations, coded in-house by the team behind 1,000+ WordPress builds. We even publish our own plugin, so you can inspect our work before you spend a dollar.

Get a Free Quote See our plugin work

★★★★★  Rated 4.8 from 96 Google reviews

WordPress admin plugins page showing UW Forms, UW Product Configurator and UW Site Operations, all by Uniweb Technologies
20+
In-house developers
50+
Custom plugins built
2011
Building WordPress since
4.8/5
From 96 Google reviews

Custom Plugins We Build

If you can describe what your business needs, we can build it into WordPress. Some of the most common requests:

WordPress custom plugin development Sydney

Calculators and Quoting Tools

Product configurators and live price calculators that turn browsers into qualified enquiries, with options, add-ons and running totals your customers can see instantly.

hacked website repair and support

Booking and Workflow Systems

Booking engines, job scheduling, approval chains and internal workflows that match how your business actually operates, instead of forcing you to work around generic software.

WordPress support and troubleshooting Sydney

Staff Portals and Dashboards

Employee logins, attendance and payroll tools, member areas and custom admin dashboards that put exactly the right information in front of the right people.

WordPress third party API integrations Sydney

API and Software Integrations

Connecting WordPress to your CRM, accounting package, shipping platform or industry software, with proper error handling and logging rather than fragile workarounds.

woocommerce development services by uniweb

WooCommerce Extensions

Wholesale pricing engines, custom checkout logic, product configurators and shipping rules that standard WooCommerce cannot do. See our ecommerce development service.

WordPress performance optimisation Sydney

Extending Existing Plugins

When a plugin does 80% of the job, we build the missing 20% safely, using hooks and extensions that survive updates instead of hacks that break on the next release.

Real Plugins, Built for Real Businesses

Not mockups and not stock screenshots. These are custom plugins our team designed, built and supports today.

Custom WordPress product option selector plugin for Peekaboo Blinds showing blind type, fabric and colour choices

Product Configurator and Price Calculator, Peekaboo Blinds

Peekaboo Blinds needed customers to build their own roller blinds online: blind type, fabric range, colour, fit, roll direction, control side, motor options and extras, with an accurate price updating live as they choose. No off-the-shelf configurator handled their pricing rules, so we built one. Customers see a running total and summary, and the business receives enquiries that are already half-quoted.

Behind the scenes, every option, fabric range and pricing rule is managed from the WordPress admin, so the Peekaboo team can add new products or adjust prices without calling a developer. The configurator works just as well on a phone, and each enquiry arrives with the full configuration and quoted total attached, which means less back and forth before a sale.

Site Operations and Workforce System, Cabra Demolition & Civil

A multi-module operations plugin running a real construction workforce: employee mobile logins, GPS geofenced clock-in and clock-out, attendance and payroll reporting, site diaries, toolbox talks, and equipment and truck management. Workers use it from any phone browser with no app install, and the office manages everything from the WordPress dashboard they already know.

Every clock-in is GPS verified against the registered boundary of the project site, and out-of-range entries are flagged for office review instead of blocking a worker from being paid. Site diaries pre-fill themselves from attendance data, weekly reports email automatically, and the whole system runs inside the existing WordPress hosting with no app store, no per-seat licences and no separate infrastructure to maintain.

Mobile login and project selection screens of the Cabra Site App, a custom WordPress plugin by Uniweb
Modules dashboard of the Cabra site operations WordPress plugin: attendance, projects, employees, payroll, trucks and equipment

And One We Published for Everyone: UW Forms

UW Forms is our free, lightweight WordPress form builder, built and maintained by the same developers who will work on your project. It is the simplest way to judge our plugin work: install it, inspect it, use it. Plenty of agencies claim plugin expertise. We ship ours publicly.

How a Plugin Project Works

Fixed scope, fixed quote, and code you own at the end.

1

Scope It Properly

We start with a $77 trial activation: a scoping call where we map what the plugin needs to do, what it connects to, and who uses it. You get a fixed quote, not an hourly guess.

2

Build on Staging

Your plugin is developed and tested on a staging copy of your site, so nothing touches your live business until it is ready and you have seen it working.

3

Test With Real Data

We test against your actual products, pricing rules and workflows, including the edge cases, before anything goes live.

4

Handover and Support

Documented, version-controlled code that you own outright, with a walkthrough for your team and ongoing support from $330 per year if you want us to keep looking after it.

Custom Plugin Questions Answered

How much does custom WordPress plugin development cost?

Simple plugins such as a calculator or a custom form workflow typically start around the cost of a small website build. Larger systems with logins, dashboards and integrations are quoted per project after scoping. Every quote is fixed before work begins, and the $77 trial activation covers the scoping session.

Who owns the code when the plugin is finished?

You do. The plugin is delivered as documented, version-controlled code owned by your business. There are no licence fees to us, and any competent WordPress developer could maintain it in future, although most clients keep us on for support.

Will a custom plugin break when WordPress updates?

We build against WordPress coding standards and public hooks rather than undocumented internals, which is what keeps plugins stable through core updates. Clients on our maintenance plans also get their plugins tested against major WordPress and WooCommerce releases before updating.

Can you modify or fix a plugin another developer built?

Yes, this is common work for us. We audit the existing code first, tell you honestly whether it is worth extending or rebuilding, and give you a fixed quote either way.

Do I need a custom plugin, or will an existing one do?

Sometimes an existing plugin genuinely covers the need, and we will tell you so, because a $0 recommendation earns more trust than an unnecessary build. Custom development makes sense when the closest off-the-shelf option forces your business to change how it works, or when the missing 20% is the part that matters.

From Clients We Build For

Rated 4.8 from 96 Google reviews

★★★★★

“Great company, bends over backwards to do more than they need to do. Have built me many sites over 15 years. Reliable and hard working, can’t praise them enough.”

JHJohn Hill
Fast Gear Australia, custom plugin client
★★★★★

“My WooCommerce site was encountering multiple problems that I could not get anyone to help me with. Ravi and the team worked through and resolved all the problems until the site was fully functional.”

BDBellinda Dello-locavo
Jiale Zhongwen
★★★★★

“I have been with Uniweb for around 5+ years now and they are the only website people that keep me up to date with my websites. Thanks to Uniweb they got my websites sorted and back up and running for me.”

KHKyle Hester
Electric Fencing Supplies

Have a Feature in Mind?

Describe what you need and we will tell you honestly whether to buy it, extend it or build it. Every project gets a fixed quote before work begins, documented code you own outright, and a team that is still here to support it years later.

Fixed quotes
You own the code
Built in-house in Australia

★★★★★  Rated 4.8 from 96 Google reviews