Booking system websites
that fill your calendar
while you sleep.

What is a booking system website?

A booking system website is a website that allows customers to book appointments, classes, rooms, or tickets online — in real time, without needing to call or email. It shows live availability, collects payment if required, sends automated confirmation and reminder messages, and gives the business owner a dashboard to manage everything. WebAnts builds custom booking system websites for London businesses in healthcare, wellness, fitness, hospitality, education, and professional services.

Should we build a custom booking system or use an off-the-shelf tool like Calendly or Acuity?

For simple appointment scheduling with one or two staff members and straightforward requirements, an off-the-shelf tool like Calendly, Acuity, or Booksy is often the fastest and most cost-effective starting point. We will tell you this honestly on the discovery call. The case for a custom build is strong when: you need complex payment rules (deposits, membership passes, refund policies), multi-staff or multi-location management without seat-based pricing, your own domain and branding without a third-party logo, deep integration with your CRM or EHR, or when your monthly SaaS fee at scale exceeds the cost of owning the system outright.

How much does a booking system website cost?

A booking website that integrates and customises an existing tool (Cal.com, Calendly) into your site starts from around £3,500. A fully custom appointment booking system with Stripe payments, SMS reminders, and an admin dashboard typically costs £8,000–£20,000. Complex multi-location systems with class management, membership passes, and reporting start from £15,000–£35,000. We provide a flat written quote after a free 30-minute discovery call — no hourly estimates.

How long does a booking system take to build?

A straightforward appointment booking system takes 3–5 weeks from kick-off to launch. A multi-location system with class management and membership passes takes 6–10 weeks. A complex platform with event ticketing, seat selection, and CRM integration takes 10–16 weeks. We agree a firm milestone timeline in the project proposal and deliver weekly staging updates throughout.

Can customers pay a deposit or full amount at booking?

Yes. We configure Stripe to collect a deposit (fixed amount or percentage of the service price), the full payment upfront, or no payment at booking with a separate invoice sent after. We also handle refund flows — full refunds, partial refunds based on your cancellation policy, and no-refund policies with a clear customer notice at the point of booking.

How do SMS reminders reduce no-shows?

We use Twilio to send automated SMS at configurable intervals — typically 48 hours and 2 hours before the appointment. Research consistently shows that automated SMS reminders reduce appointment no-show rates by 30–50% in service businesses. You control message templates, timing, and opt-out handling from the admin dashboard. Transactional email reminders run in parallel via Resend or SendGrid.

Can the booking system integrate with Google Calendar or Outlook?

Yes. Two-way sync with Google Calendar and Microsoft Outlook is standard. When a booking is made, it appears immediately in the relevant staff member's calendar. Cancellations and reschedules sync automatically, preventing double-bookings. We also support iCal feeds for staff who use other calendar applications.

Can you handle multiple staff members and multiple locations?

Yes. We build multi-staff booking flows where each team member has their own availability, service list, and calendar — and customers can choose their preferred practitioner. For multi-location businesses, customers select their branch first, then see availability for that location only. Staff management, location permissions, and admin reporting all operate from a single dashboard.

Is patient or customer data stored securely?

Yes. All customer data is stored in an encrypted PostgreSQL database hosted in the UK or EU. We implement GDPR-compliant data handling, including a privacy policy, data retention policies, and a clear consent mechanism at the point of booking. For healthcare applications, we advise on additional requirements such as access logging and breach notification procedures.

Can the system handle high-demand releases — like popular classes or ticket drops?

Yes. We build with optimistic concurrency control and database-level locking to prevent double-bookings during simultaneous reservation attempts — critical for popular class releases or ticket drops where hundreds of users may be booking at the same moment. Load testing is included before go-live for any high-traffic booking scenario.