WordPress Plugins — Built In-House by Whamos Ltd

Custom WordPress Plugins — Built for Real Business Requirements, Used on Real Sites

We build WordPress plugins when off-the-shelf solutions do not fit. Every plugin in our portfolio is deployed on live client sites. We build tools we use ourselves — because that is the only honest way to know they work.

200+

Websites Built

2020

Established In Cumbria

24/7

Customer Support

Plugin Development being shown on screen

Our Plugin Portfolio

Ten plugins built in-house and deployed on live client sites. Click any plugin to find out more.
Technophobia SEO Tool
technophobia seo tool
Full schema markup, meta tags, sitemaps, social links, and follow/no-follow — all automated, no conflicts, auto-updating. The SEO plugin built after 20 years of practice.
Read about our SEO Tool
Holiday Home Booking
West Lakes Stays owner dashboard showing property listings bookings and revenue overview
Full-featured holiday let booking system — availability calendars, payment schedules, iCal sync, customer portal, and owner dashboard for Cumbrian and Lake District properties.
Read about our Holiday Home Booking Plugin
Outdoor Pursuits Booking
Way Out West activities and interactive map on red laptop showing walk routes and activity pins across the Lake District against moorland fells
Booking and activity management for outdoor adventure businesses — dynamic routing, gift vouchers, What3Words integration, and activity shortcodes.
Read about our Outdoor Pursuits Booking Plugin
Appointment Booking
Screenshot showing appointment booking system
A flexible appointment booking system for service businesses — time slots, staff management, customer notifications, and calendar integration.
Read about our Appointment Booking Plugin
Motorhome Site Booking
Motorhome booking website shown on a council website screenshot on laptop demonstrating integrated booking functionality
Pitch management and booking for motorhome and touring sites — tiered warden access, arrival and departure tracking, and granular site control.
Read about our Motorhome Booking Plugin
Rooms and Bookings
Multiple screens showing the Kirksanton Village Hall website across desktop tablet and mobile devices
Room booking management for hotels, B&Bs, and guesthouses — availability, pricing, customer management, and booking administration from a single dashboard.
Read about our Rooms and Bookings Plugin
Event Management
Lakeland Life Events website showing an event enquiry popup form with steps for contact details, event details, and submit enquiry, with a colourful Pride event in the background
Event creation, ticket management, attendee tracking, and booking administration for businesses running events, courses, or community activities.
Read about our Event Management Plugin
Invoice Management
Screenshot showing invoice management system
Invoice creation, management, and tracking built into WordPress — client billing, payment status, and financial record keeping without third-party accounting software.
Read about our Invoice Management Plugin
TP Chat Bot
Block Moulds UK Ltd website with AI web agent interface showing product navigation categories and homepage sections
Visitor chat widget with Twilio SMS operator notifications. Visitors chat on your site, operators respond from their phone. n8n webhook integration for workflow automation.
Read about our Chat Bot Plugin

Plugins We Built Because Nothing Available Did the Job Properly

The Technophobia SEO plugin was built after 20 years of SEO practice because every available plugin required compromises — conflicts, duplicate schema blocks, or missing functionality that required a second plugin. We built one tool that does everything correctly, without the problems.

Every plugin in our portfolio started the same way — a real problem, an inadequate available solution, and a decision to build it properly. All of them are deployed on client sites across Cumbria and the North West. We also build custom plugins to client specification — fixed price, full specification, you own the code.

Need something that does not exist in our current suite? Our custom WordPress plugin development service builds bespoke plugins around your exact operational requirements — from simple integrations to complex business logic. Delivered with full documentation and source code ownership.

Why We Build Plugins — and Why That Matters for You

Every plugin we build starts with a real problem encountered in live client work. This matters because every plugin in our portfolio has been tested in production on real sites with real users. We know where the edge cases are because we have hit them. We know what breaks under real-world usage because we have fixed it.

When you commission a custom plugin, you are working with developers who have built production plugins from scratch multiple times. We understand the WordPress plugin architecture, the hook and filter system, and the deployment process. We do not learn these things on your project.

All our plugins are built to WordPress coding standards. Correct hooks, filters, and the Settings API. No shortcut code that breaks on WordPress updates. Code that any competent WordPress developer can read, maintain, and extend without us.

Fixed-price quotes. Full written specification agreed before we start. You own the code, the documentation, and the right to modify it from the moment it is delivered. fee to us for the right to use software we built for you.

Whamos Ltd team meeting over a website project on a whiteboard

Why Choose Whamos for Plugin Development

Deployed on live sites, built to standards, fixed price, code owned by you.

Deployed on Live Sites

Every plugin runs on live client sites across Cumbria and the North West. Tested in production, not just in development. We build tools we need and use — not tools we build and abandon.
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WordPress Coding Standards

Correct hooks, filters, and Settings API usage throughout. No code that breaks on updates, no direct database queries bypassing WordPress. Any competent WordPress developer can read and maintain it.
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Fixed Price, Your Specification

Every project starts with a written specification. Price fixed against it — not an estimate. No day rates, no scope creep. Want to add features after the spec? Quoted separately before implementing.
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You Own the Code

The code, the documentation, and the right to modify it — all yours on delivery. fee. If you want another developer to extend it later, they have everything they need.
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Plugin Development — Based in Millom, Cumbria

Our plugins run on client sites from Barrow to Carlisle, Kendal to Whitehaven, and across the wider North West.

20 Years of WordPress Experience

Two decades of WordPress development — from simple themes through to complex REST API-driven plugin architecture. We know WordPress deeply, not just on the surface.

ISO Certified Development

ISO 9001, 27001, and 42001 certified. Cyber Essentials accredited. Documented development processes applied to every plugin project. For clients who need a supplier they can audit.

Available Outside Office Hours

For clients whose plugins are business-critical, we are available outside normal hours. A small team in Millom — when you contact us, someone who knows your project responds.

Long-Term Relationships

Plugins evolve after launch. We build long-term relationships with clients — not one-off deliveries. We remain involved and available for as long as you need us.

WordPress Plugins — Frequently Asked Questions

Some plugins are available to discuss for independent use — the Technophobia SEO Tool in particular is used on client sites we manage and can be licensed for independent deployment. Contact us to discuss availability and terms.

Written specification first, then a fixed price against it. We have been building WordPress plugins for 20 years and price based on what things actually cost to build correctly. No day rates, no invoice growth.

We build to WordPress coding standards to minimise conflicts. The Technophobia SEO plugin replaces other SEO plugins rather than supplementing them — one tool doing everything correctly, avoiding the conflicts that come from two SEO plugins active simultaneously.

Yes. The Technophobia SEO plugin works independently of any page builder. For custom plugin builds, compatibility with your specific setup is confirmed at specification stage.

Bug fixes arising from our code are covered for an initial period after delivery. For ongoing feature development and WordPress version compatibility, we offer retainers or ad-hoc arrangements. Every plugin is thoroughly documented so maintenance is straightforward for us or any other WordPress developer.

Need a Custom WordPress Plugin Built Properly?

Written specification. Fixed price. You own the code. Based in Millom, Cumbria.