25% discount on all new client orders. Talk to us
Sitefitters
Contact us Find a Fit

A WHMCS Client Area That Looks Like Your Product.

We design WHMCS client areas, order forms and custom modules for hosting, cloud and SaaS providers. Our background is in servers and cloud infrastructure, so billing, provisioning and support work the way your customers expect, inside a portal that matches your brand.

  • ThemesYour brand across the client area and emails.
  • ModulesServer, registrar and addon modules for your stack.
  • ProvisionServices go live the moment an order is paid.
  • AutomationInvoices, reminders and suspensions on schedule.
Get a free Fit Call See how a Fit works Migrate to WHMCS

Built for service providers

  • Web Hosting
  • Cloud & VPS
  • Dedicated Servers
  • Colocation
  • Data Centers
  • Managed IT & MSPs
  • SaaS & Software
  • Domain Resellers
  • Game Server Hosts
  • Email Hosting
  • VoIP Providers
  • Backup & DR
  • SSL & Security Resellers
  • ISPs
  • Web Agencies

What we build into your WHMCS.

Start with the client area. Add modules and automation when you are ready.

Client area themes

A client area designed to match your website, from login to invoice.

Order forms

Product pages and configurators that make choosing a plan easy.

Custom modules

Server, registrar and addon modules for your platform or API.

Provisioning

Proxmox VE, cPanel, Virtualizor and custom APIs, set up to run on payment.

Billing automation

Invoices, reminders, late fees and suspensions on schedule.

Billing systems →

Security and upgrades

Hooks and child themes that survive updates, plus regular patching.

Support and CRM

Tickets, knowledge base and client history in one place.

CRM →

Reports and dashboards

Revenue, renewals and overdue invoices, at a glance.

Moving to WHMCS? We migrate it for you.

  • Clients, services and invoices moved
  • Tickets and billing history kept
  • Tested before the switch-over
Plan my migration
Why Sitefitters

Why Hosting Providers Choose Us.

Hosting Insiders

Our background is in servers, cloud and data centers, so we know how hosting is sold and provisioned.

Update-Safe

Child themes and hooks, never core edits, so WHMCS updates install cleanly.

Front-end & Back-end

We design the client area and write the modules behind it.

Yours to Keep

You own the theme, the modules and the code.

WHMCS customization pricing

Fixed prices. Written down.

No hourly billing and no surprises. You approve a written, final quote before we build.

Starter

Launch a branded WHMCS, done right.
$425one-time
  • WHMCS installed and configured
  • Your payment gateways configured (up to 3)
  • Your purchased modules installed and configured (up to 5)
  • Performance and security tuning: caching, cron, database and hardening
  • Brand fit: your logo, colors and fonts, with the header and footer matched to your website
  • Branded email templates, with SPF, DKIM and DMARC set up so invoices don’t land in spam
  • Hands-on training for your team, plus written documentation
  • 30 days of post-launch support
Not included: new page layouts and custom order forms (see Professional); integrations, custom modules and migration (see Enterprise).
Get Started Now
Most popular

Professional

A client area that is unmistakably yours.
$799one-time
  • WHMCS installed and configured
  • Your payment gateways configured (up to 3)
  • Your purchased modules installed and configured (up to 5)
  • Performance and security tuning: caching, cron, database and hardening
  • Brand fit: your logo, colors and fonts, with the header and footer matched to your website
  • Branded email templates, with SPF, DKIM and DMARC set up so invoices don’t land in spam
  • Hands-on training for your team, plus written documentation
  • 30 days of post-launch support
  • Custom client area design: up to 8 pages redesigned to match your website (login, dashboard, services, service details, invoices, invoice view, support tickets, knowledge base)
  • Order form customization: your order flow restyled and streamlined, with plans, options and addons laid out clearly
Not included: provisioning integrations, migration, custom-built modules, hooks or API integrations, or multi-brand setups (see Enterprise).
Get Started Now

Enterprise

Custom-built for how you sell.
Call to discussscoped to your project
  • Everything in Professional
  • Provisioning integrations connected and tested (cPanel, Proxmox, your CRM and more)
  • Migration to WHMCS from your current billing system
  • Custom-built modules, addons and hooks
  • API integrations with your platform
  • Multi-brand or multi-currency setup
  • Extended post-launch support
Call to discuss
What you’ll needA WHMCS license (from $34.95/mo for up to 250 clients) and any modules or themes you’d like us to customize, all bought in your name, so they stay yours.
Over  1,250+ Projects completed
Over  500+ Clients served
  20 Years of experience
Who we build for

WHMCS for Hosting, Cloud, MSPs and SaaS.

Every WHMCS install is set up around what you sell and how it is delivered, so orders, billing and support run without manual steps.

Enterprise grade

WHMCS for Hosting and Cloud Providers

Order-to-online automation for shared, VPS, dedicated and cloud hosting. We connect WHMCS to the platforms you run, so a paid order becomes a running service without a ticket.

  • Server modules for Proxmox VE, Virtualizor and custom APIs
  • Configurable options for CPU, RAM, storage and OS
  • Usage billing for bandwidth and resources
  • Automatic suspension and unsuspension on payment
Platforms we connect
  • Proxmox VE
  • cPanel & WHM
  • Plesk
  • DirectAdmin
  • Virtualizor
  • VMware
  • OpenStack
  • Domain registrars
  • Stripe & PayPal
  • Custom REST APIs
Shared · VPS · Dedicated · Cloud · Colocation Plan my WHMCS build
IT & managed services

WHMCS for MSPs and IT Providers

Contracts, retainers and support in one branded portal your clients actually use.

  • Recurring contracts and retainers
  • Ticket departments and SLAs
  • Knowledge base and announcements
  • Client history next to every invoice
MSPs · IT support · Consultancies Plan my client portal
Software & licences

WHMCS for SaaS and Software Companies

Plans, licences and renewals billed automatically, with accounts created the moment a customer pays.

  • Licence and account provisioning
  • Plan upgrades with prorated billing
  • Promo codes and free trials
  • Failed-card retries and reminders
SaaS · Software · Licensing Plan my SaaS billing
Platforms

Other platforms we fit.

We start from strong open platforms where they fit, and write custom code where they don't. You own all of it.

Online storesWooCommerce

Stores, subscriptions and memberships on WordPress, with checkout built to convert.

WooCommerce development →
ERP and CRMOdoo

Inventory, accounting, CRM and invoicing in one system, set up for your workflow.

Odoo implementation →
Anything elseCustom code

Web apps, internal tools and integrations, built from scratch when no platform fits.

Talk to us about it →
How a Fit works

From first call to a system that runs.

Every project follows the same five steps, so you know what happens next and what it costs before any build starts.

Fit Call

A free 20-minute call. We map how you sell, book and bill today.

Blueprint

The systems, platform and scope, in writing, before any build.

Build

Front-end and back-end built together, with a working preview each week.

Brand

Every screen, email and invoice fitted to your look and voice.

Care

Updates, fixes and new features as your business grows.

FAQ

Questions, answered.

Can you redesign my client area without breaking updates?

Yes. We build a child theme and use hooks instead of editing core files, so WHMCS updates install cleanly.

Do you build custom provisioning modules?

Yes. We write server, registrar and addon modules for your platform or API, so orders provision automatically.

Can WHMCS provision Proxmox VE, VMware or our own platform?

Yes. We use proven modules where they exist and write custom ones where they don't, so services are created, suspended and terminated from WHMCS.

Can you migrate us to WHMCS?

Yes. We move clients, services, invoices and tickets from Blesta, HostBill or custom systems, and test billing before switching over.

Do you look after WHMCS after launch?

Yes. We test updates on a staging copy first, then update your install, theme and modules together so nothing breaks in production.

Do you work with WHMCS alternatives?

Yes. We also work with Blesta, FOSSBilling and Paymenter, and recommend the best fit after the Fit Call.

We will meet you at any stage
of your Business Growth.

Sitefitters wants to understand your digital journey so it can be customized to fit you.

Get a free Fit Call See all systems
Launch Website Get found SEO Get booked Booking Get paid Billing Keep clients CRM Serve Portal Scale Apps