❄️ HVAC Booking App Development Kit

📱 Flutter Source Code, Admin Dashboard & Illustrated Guides

🏡 Explore the building blocks of a connected HVAC service platform.

Bring your heating, cooling, and home-service software ideas into focus with the ELDON-Digital HVAC Booking App Development Kit.

This digital development collection combines customer and technician Flutter application source code, a web administration dashboard, a typed backend API, database resources, detailed guides, and presentation artwork.

Follow the connections between customer equipment, service requests, technician assignments, inspection findings, estimates, approvals, and invoices. Explore the source, understand the workflows, and use the documentation to support further development and customization.

💡 Designed for developers, agencies, technical learners, and HVAC businesses working with a qualified development team.

📌 Development status: This product is version 0.1.0. It requires additional implementation, configuration, and testing before production use. It is not a finished hosted booking service, a no-code solution, or a store-ready application.

📦 What’s Included in Your Digital Collection?

The development collection includes:

📱 Customer Flutter App Source
A customer-facing application connected to HVAC equipment, service requests, appointments, estimates, and invoice records.

🧰 Technician Flutter App Source
A technician-facing application for assigned work, service progress, inspections, notes, materials, and related job records.

🖥️ Administration Dashboard Source
A React web workspace for reviewing and managing connected HVAC operations.

⚙️ Backend API Source
A TypeScript and Fastify backend with HVAC-specific routes, access checks, and transactional record updates.

🗄️ Database Resources
Schema migrations and fictional demonstration data for exploring the application.

🧩 Shared Flutter Packages
Shared application components and supporting code used across the mobile targets.

🎨 Branding Resources
Supported configuration fields for names, colors, identifiers, artwork, and related application settings.

📚 Ten Illustrated PDF Guides
A coordinated documentation collection with 70 total pages.

📝 Editable HTML Guides
Editable text and layouts for adapting the documentation.

🖼️ Full-Image Guide Covers
Ten cinematic cover PNGs coordinated with the guide collection.

📸 Advertising Graphics and App Captures
Ten advertising compositions, original application screenshots, captions, and alternative-text descriptions.

🧪 Development Verification Records
Selected build results, test logs, dependency audit results, and documented limitations.

📖 API Documentation
OpenAPI documentation for exploring the backend interface.

🔄 Backup and Restoration Scripts
Supporting scripts for database backup and isolated restoration workflows.

📦 Unsigned Android Bundles
Two Android App Bundle compilation artifacts.

🏡 Customer App Features

Give your development team a connected customer-service workflow to explore.

The customer application source includes workflows for:

✅ Managing service locations
✅ Registering HVAC equipment
✅ Requesting regular service
✅ Submitting emergency repair requests
✅ Reviewing appointments and job details
✅ Reading customer-visible service notes
✅ Viewing inspection results
✅ Reviewing and approving estimates
✅ Providing typed completion acknowledgement
✅ Reviewing invoice records
✅ Recording simulated demo payments
✅ Updating filter replacement information

Customer access is checked against account ownership and the associated HVAC records.

💡 Example journey: A customer registers equipment, submits a service request, reviews the technician’s findings, approves an estimate, and reviews the resulting invoice.

📌 Emergency requests enter a service workflow. The development application does not guarantee technician availability or arrival times.

🧰 Technician App Features

Explore how field activity connects to service records.

The technician application source supports:

🔹 Assigned job lists
🔹 Job status progression
🔹 Service notes
🔹 Supported inspection forms
🔹 Parts consumption records
🔹 Refrigerant charging and recovery records
🔹 Estimate preparation
🔹 Completion and invoice workflows
🔹 Shift consent
🔹 Manual arrival-location sharing during eligible assignments

📶 Limited Offline Submission Support

Notes and inspection answers can use a local submission queue.

Other actions, including financial records, parts, refrigerant, scheduling, signatures, and location sharing, require a connection.

📍 Location Sharing

Arrival coordinates are shared through a manual foreground action during an eligible assigned trip.

Automatic background tracking, route maps, and road-based arrival estimates are not implemented.

🖥️ Administration and Dispatch Dashboard

Review connected HVAC operations from a web workspace.

The dashboard organizes records into areas for:

📋 Requests and Dispatch
Review service requests and assign technicians.

🏠 Equipment
Inspect equipment associated with customer service locations.

🗓️ Maintenance
Manage supported maintenance plans and generate missing visit dates.

📝 Inspections
Publish supported versioned inspection definitions.

📦 Inventory
Review parts and record permitted stock adjustments.

🧊 Refrigerant
Review cylinder balances and related movements.

💵 HVAC Invoices
Access HVAC invoice and payment records.

🔎 Job Details
Review notes, inspections, estimates, and service evidence.

Supported scheduling checks consider technician qualifications, certification expiration, record versions, and neighboring appointments with a fixed travel buffer.

Additional tools include:

✨ Customer-facing and internal note visibility
✨ Stock adjustments with recorded reasons
✨ Versioned inspection snapshots
✨ HVAC job CSV export
✨ Branded service report PDF generation

📌 The dashboard uses React and Vite. It is not a Next.js implementation.

⚙️ Backend and Database Foundation

The backend connects the customer app, technician app, and dashboard to HVAC-specific records.

Included functionality covers:

🔐 Session and membership checks
👤 Customer ownership checks
🧑🔧 Technician assignment checks
🔁 Idempotency handling for supported mutations
🗓️ Scheduling conflict checks
📦 Inventory balance protections
💵 Transactional invoice and payment-record updates
📝 Inspection version snapshots
🗂️ Database migrations
📚 OpenAPI documentation

💡 Why idempotency matters: Retrying a supported request with the same key helps prevent its effects from being recorded more than once.

The local demonstration uses PGlite. The HVAC test suite was also run against PostgreSQL.

📚 Ten Beautifully Designed Guides

Understand the workflows with visual, organized documentation.

Each guide combines a full-image cover with coordinated interior sections designed to make the material easier to follow.

Inside the collection, you will find:

💙 Blue explanation panels for context
🌿 Mint verification strips for checks and observations
🟠 Amber highlights for cautions and troubleshooting
🔢 Numbered steps for following procedures
📸 Actual application screenshots for visual reference
💡 Screen-reading notes explaining what to look for
📖 Plain-language glossaries for key terminology
📝 Editable HTML versions for further customization

Your Guide Collection

1. 🚀 Start Here and Product Overview
2. 🎨 Buyer White Label Customization
3. 🖥️ Backend, Database, and Dashboard Deployment
4. 🤖 Android Build and Google Play Publishing
5. 🍎 iOS Build and Apple App Store Publishing
6. 🏡 Customer Mobile App User Guide
7. 🧰 Technician Mobile App User Guide
8. 📋 Administrator and Dispatcher User Guide
9. 🔐 Security, Privacy, and Store Compliance
10. 🔄 Maintenance, Backup, Restoration, and Troubleshooting

Ten guides. Seven pages each. Seventy PDF pages in total.

📌 The publishing guides explain preparation steps and outstanding requirements. Their inclusion does not mean that either application has been submitted to or approved by an app store.

🎨 Advertising Assets and Cover Artwork

Present the development project with coordinated visuals.

The advertising collection includes ten compositions using actual application captures.

Available formats include:

🖼️ 3000-pixel PNG masters
📷 1600-pixel JPG previews
🌐 2000-pixel website PNG versions
✨ 2000-pixel WebP versions
📂 Original application screenshots
📝 Captions and alternative-text descriptions

The guide collection also includes ten separate full-image cover PNGs.

Artwork disclosure: The product was developed with AI assistance. The cinematic guide covers use AI-generated editorial imagery. The application screenshots are authentic captures from the running dashboard and Flutter web apps with fictional demonstration records.

The screenshots are not native-device captures. Advertising graphics retain development-version labeling.

🛠️ Technology Details

These are the recorded development versions. They are not a promise of future compatibility or ongoing updates.

🧪 Documented Development Checks

The included verification records cover:

✅ 36 passing backend tests
✅ 15 passing shared Flutter tests
✅ The same 15-test HVAC subset passing against PostgreSQL
✅ Backend and dashboard compilation
✅ Selected browser navigation and workflow checks
✅ Two unsigned Android App Bundle builds
✅ Static native-library alignment inspection
✅ An isolated database backup and restoration check
✅ Backend and dashboard builds from a fresh source extraction

A Node dependency audit reported zero known advisories after package updates.

📌 This is a point-in-time dependency result, not a comprehensive security certification.

Backend source line coverage was 74.35%. Additional coverage and broader validation remain necessary.

🎯 Who Is This Development Kit For?

👨💻 Software Developers

Explore connected Flutter, React, API, and database workflows in an HVAC setting.

🏢 Development Agencies

Evaluate the source and documentation as a foundation for a separately scoped development project.

🧑🔧 HVAC Business Owners

Work with a qualified developer to assess how the existing workflows could be adapted to your business.

🎓 Technical Learners

Study equipment records, service requests, assignments, inspections, and related operational data.

📋 Product Teams

Review a working development example before defining additional requirements.

Technical setup and development experience are required. Buyers who need an immediately usable hosted booking service should select a finished operational product.

🚧 Important Development Limitations

Please review these boundaries before purchasing:

🔸 Live HVAC card payments, 3DS, and payment reconciliation are incomplete.
🔸 HVAC payment actions simulate payments or record externally collected cash/check payments.
🔸 Android bundles are unsigned compilation artifacts.
🔸 No verified iOS archive, signing, or physical-device installation is included.
🔸 Offline support is limited to notes and inspection answers.
🔸 Background GPS, route maps, and road-based arrival estimates are absent.
🔸 Advanced scheduling, recurring maintenance billing, and several reporting workflows require additional development.
🔸 Account deletion, retention handling, administrator MFA, and other production controls remain incomplete.
🔸 Redis, PostGIS, and distributed infrastructure are not implemented.
🔸 Docker configuration and hosted CI workflows have not been executed.

The included status reports explain further implementation boundaries.

Production preflight intentionally blocks release while unfinished requirements and buyer placeholders remain. Supplying credentials alone does not complete the software.

🔑 What You Need for a Future Production Launch

The buyer must complete the remaining development work and provide appropriate resources, including:

🍎 Apple Developer account
🤖 Google Play Console account
🏷️ Unique app names and application identifiers
🔏 Certificates, provisioning, and signing keys
🌐 Hosting, domain, TLS, and database credentials
🏢 Company information and support details
📄 Privacy policy, terms, and account-deletion URLs
🗺️ Maps and push credentials for enabled integrations
💳 Payment-provider account and completed payment integration
📧 Email and SMS accounts where applicable
📍 Service areas and appointment policies
💵 Final pricing, currency, and tax rules
⚖️ Final legal and licensing review

Developer accounts, hosting, payment processing, messaging, and other third-party services have separate costs.

💬 Frequently Asked Questions

❓ Is this a finished HVAC booking service?
No. It is a development source package that requires additional implementation, configuration, and testing.

❓ Do I need programming experience?
Yes. You should have suitable development skills or work with a qualified developer.

❓ Are both customer and technician app sources included?
Yes. The collection includes both Flutter application targets and shared packages.

❓ Can I customize the branding?
Supported branding configuration and editable source are included. Some presentation text, pricing, and business rules still require source changes and further development.

❓ Does the app accept live card payments?
Live HVAC card processing is incomplete. Current HVAC payment actions simulate payments or record externally collected cash/check payments.

❓ Are the apps ready for Google Play or the Apple App Store?
No. Android bundles are unsigned, and iOS compilation, signing, and device validation remain outstanding. Store approval is not guaranteed.

❓ Can I edit the guides?
Yes. The HTML versions include editable text and layouts. Cover typography is part of the supplied PNG artwork.

❓ Are the app screenshots real?
Yes. They are actual browser captures from the running development application using fictional data. The cinematic cover illustrations are AI-generated.

❓ Are hosting and developer accounts included?
No. Those resources and their associated fees must be supplied separately.

❓ Does source access include unlimited resale rights?
No such rights should be assumed. Usage, modification, client deployment, and redistribution depend on the finalized buyer license and applicable third-party licenses.

📥 Digital Product Information

📂 Digital source code, documentation, and artwork only.

📦 No physical product, printed guide, HVAC equipment, or mobile device will be shipped.

💻 A suitable development environment is required. Native iOS work requires macOS and Xcode.

📜 Review the product license, support terms, delivery instructions, and refund policy displayed on the product page before purchasing.

❄️ Explore Your Next HVAC Software Development Project

Bring the source code, service workflows, illustrated documentation, and presentation assets together in one development collection.

Choose the ELDON-Digital HVAC Booking App Development Kit when you want a documented starting point for further technical development.

🛒 Review the development requirements and license, then add the digital collection to your cart.