The best app for UK plumbers in 2026 is Tradify (£34/month) — it offers Gas Safe integration, fast quoting, and connects with UK suppliers like Wolseley. For plumbers on a budget, ServiceM8's free tier handles up to 15 jobs monthly. For accounting, Xero or FreeAgent are essential for MTD compliance.
Plumbing and heating is one of the most technology-friendly trades. Whether you're a sole trader doing domestic repairs or a Gas Safe registered engineer installing boilers, the right apps can transform your business.
This guide focuses specifically on apps that work for plumbers — with features like Gas Safe certificate integration, materials tracking, and supplier connections that matter for your trade.
Top App Picks at a Glance
| Category | Best App | Price | Why |
|---|---|---|---|
| Job Management | Tradify | £34/mo | Gas Safe integration, UK-focused |
| Scheduling (Teams) | ServiceM8 | £29/mo | Best dispatch for multiple engineers |
| Free Option | ServiceM8 Free | Free | 15 jobs/month included |
| Quoting | Tradify | £34/mo | Fastest quote creation |
| Accounting | FreeAgent | £19/mo | Best CIS handling for subcontractors |
| Gas Safe Compliance | Gas Safe Register App | Free | Official notification system |
| AI Assistant | ChatGPT | Free | Write quotes, emails, RAMS |
Tradify: Best Overall for Plumbers
Tradify
Tradify was practically built for plumbers. The Gas Safe integration means you can create and submit notifications directly from the app. Materials tracking connects with UK suppliers like Wolseley and City Plumbing. Quote templates include common plumbing jobs with realistic pricing.
Why Plumbers Love Tradify:
- Gas Safe Integration: Submit CP12s and installation notifications directly
- Materials Tracking: Add parts from your regular suppliers with live pricing
- Boiler Quote Templates: Pre-built templates for common installations
- Photo Attachments: Document before/after, serial numbers, safety issues
- Customer Portal: Customers approve quotes and pay online
Pros
- Gas Safe direct integration
- Fastest quoting in the industry
- UK supplier connections
- Excellent mobile app
- UK-based support team
Cons
- No free tier
- Basic scheduling vs ServiceM8
- Limited custom form builder
ServiceM8: Best for Plumbing Teams
ServiceM8
If you run a plumbing company with multiple engineers, ServiceM8's scheduling system is unmatched. See everyone's day at a glance, dispatch jobs with a tap, and automatically notify customers when their plumber is en route.
Key Features for Plumbers:
- Visual Dispatch Board: Drag-and-drop job assignment
- Custom Forms: Build your own CP12, service record, and commissioning forms
- GPS Tracking: Know where your vans are in real-time
- Customer Notifications: Automatic "engineer on the way" messages
- Free Tier: Test properly before committing
Gas Safe Compliance Apps
If you're Gas Safe registered, compliance isn't optional. Here are your options:
Gas Safe Register App (Free)
The official app from Gas Safe Register lets you submit notifications directly from your phone. It's free, works offline, and is the source of truth for your registration.
Tradify Gas Safe Integration
Tradify connects directly to Gas Safe Register, letting you submit notifications without leaving your job management app. This is the most streamlined workflow if you're already using Tradify.
Combi Boiler App
Specifically for heating engineers, this app includes fault-finding guides, commissioning checklists, and technical data for most UK boiler brands.
Best Accounting Apps for Plumbers
FreeAgent — Best for Subcontractors
If you do subcontract work for larger plumbing companies, FreeAgent's CIS handling is the best in the business. It automatically calculates deductions, tracks your tax position, and makes Self Assessment straightforward. £19-29/month, often free with business bank accounts.
Xero — Best for Direct-to-Consumer
If most of your work is direct with homeowners, Xero's wider app ecosystem and better invoicing features make it the better choice. Integrates perfectly with Tradify and ServiceM8. £14-38/month.
Read our full accounting software comparison →
AI Tools for Plumbers
AI isn't replacing plumbers — but it's making the admin side much easier.
ChatGPT for Quote Writing
Describe the job, paste into ChatGPT, get a professional quote description in seconds. Works brilliantly for complex jobs where you'd normally spend 10 minutes writing up the scope.
Example prompt: "Write a quote description for replacing a 15-year-old Vaillant boiler with a new Worcester 4000. Include system flush, magnetic filter, and 10-year warranty."
ChatGPT for Customer Emails
Chasing a late payment? Explaining why a repair is needed? Responding to a complaint? ChatGPT can draft professional responses in your tone of voice.
Get our 50+ ChatGPT prompts for tradespeople →
Recommended App Stack for Plumbers
Solo Plumber (Budget: £50/month)
- Tradify (£34) — Job management, quoting, invoicing
- FreeAgent (£19) — Accounting, MTD, Self Assessment
- ChatGPT (Free) — Quote writing, emails
- Gas Safe App (Free) — Compliance notifications
Plumbing Company 2-5 Staff (Budget: £100/month)
- ServiceM8 (£49) — Job management with scheduling
- Xero (£38) — Accounting with payroll
- ChatGPT (Free) — Admin assistance
- WhatsApp Business (Free) — Team communication