Best Apps for Plumbers in 2026: The Complete List
Apps That Earn Their Place in Your Van
Plumbers have an availability problem that no other trade faces quite as sharply. When a boiler fails in January or a pipe bursts at 11pm, customers don't browse—they call the first three plumbers on Google and book whoever picks up. A single missed bathroom renovation enquiry is worth £5,000–£15,000. A missed boiler installation is £2,500–£4,500. And emergency callouts—the bread and butter of the trade—are gone in minutes if you don't answer.
This guide covers the apps that actually help working plumbers. No subscription traps, no tools that look good in a demo but die on a wet job site. Just software that earns back more than it costs, organised into four categories:
- Invoicing & Estimates – Get paid faster
- Scheduling & Job Management – Stop double-booking
- Compliance – Gas Safe and regulatory tools
- Call Handling – Never lose a lead
If you only change one thing this year, fix how you handle calls when you're under a sink—it's the single biggest revenue leak for most plumbing businesses. Then let's get into the full list.
Invoicing & Estimates
Getting paid shouldn't require chasing invoices for weeks. These apps let you quote on site, convert to invoice in one tap, and take payment before you've packed up your tools.
1. Contractor+
Best for: Solo plumbers who want everything in one app
Price: Free tier available, Pro from £15/month
Website: contractorplus.com
Contractor+ lets you build professional estimates on site with itemised parts and labour. Walk into a bathroom renovation survey, photograph the existing layout, build a detailed quote with a parts/labour split, get a digital signature, and email the estimate—all before you leave the property.
What plumbers like:
- Estimate builder with parts/labour breakdown for bathroom, boiler, and pipework jobs
- Before/after photo documentation attached to each job
- Digital sign-off captured on your phone screen
- GPS mileage tracking for tax claims
- Works offline—essential when you're in a basement with no signal
What could be better:
- Interface feels cluttered on smaller screens
- Steeper learning curve in the first week
Contractor+ tip for plumbers
2. FreeAgent
Best for: Self-employed plumbers who want simple bookkeeping
Price: Free with NatWest/RBS/Ulster Bank business account, otherwise £19/month
Website: freeagent.com
FreeAgent is the accounting tool of choice for UK self-employed trades. It handles Making Tax Digital (MTD) compliance out of the box, tracks mileage automatically, and—critically for plumbers who subcontract—manages CIS (Construction Industry Scheme) deductions without the spreadsheet headaches.
What plumbers like:
- Free with NatWest/RBS business banking—a genuine £0 option
- MTD-compliant VAT returns filed directly from the app
- CIS deduction tracking for subbies working under main contractors
- Automatic bank feed categorisation
- Mileage tracking between jobs
What could be better:
- Not as feature-rich for quoting as Contractor+
- Best suited for sole traders rather than growing teams
Scheduling & Job Management
When you're juggling six jobs across three postcodes, a paper diary doesn't cut it. These apps keep your schedule, customer records, and job history in one place.
3. Jobber
Best for: Plumbing businesses with 2+ people
Price: From £29/month
Website: getjobber.com
Jobber is the industry standard for field service businesses. It handles the full job lifecycle—from enquiry to payment—and is especially strong for plumbing firms that dispatch multiple engineers across a coverage area.
What plumbers like:
- Drag-and-drop scheduling calendar shared across the team
- Route optimisation to reduce drive time between jobs
- Client portal where customers can approve quotes and pay invoices
- Automated quote follow-ups—no more chasing manually
- Job notes and photos accessible to every team member
What could be better:
- Overkill for a solo plumber—the real value kicks in at 2+ people
- Pricing jumps when you add multiple users
4. Tradify
Best for: UK plumbers wanting trades-specific software
Price: From £29/month per user
Website: tradifyhq.com
Tradify was built from day one for trades businesses, not retrofitted from generic project management software. The UK version includes proper VAT handling, and the interface is designed for people who spend their days on job sites, not in offices.
What plumbers like:
- Purpose-built for trades—everything makes sense without a tutorial
- Solid offline mode for sites with poor signal
- Job timers for tracking billable hours on each visit
- Xero and QuickBooks integration for seamless bookkeeping
What could be better:
- Per-user pricing adds up quickly for larger teams
- Reporting could be more detailed
Compliance
If you do any gas work, compliance isn't optional—it's a legal requirement. This app keeps your registration accessible and verifiable.
5. Gas Safe Register
Best for: Gas Safe registered plumbers and customers checking credentials
Price: Free
Website: gassaferegister.co.uk
Every plumber who works on gas appliances in the UK must be on the Gas Safe Register—it's the law. The official app lets you check your own registration status, show credentials to customers on the doorstep, and verify other engineers when subcontracting.
What plumbers like:
- Instant proof of registration to show wary customers
- Check any engineer's Gas Safe credentials before subcontracting
- Access to your appliance categories and qualification details
- Builds trust immediately—especially with new customers who found you online
Trust-building tip
Call Handling
Here's the part most plumbers don't want to hear: the best invoicing app in the world doesn't help if the call never gets answered. Plumbing is uniquely exposed to this problem. Emergency callouts are time-critical. Bathroom renovations are high-value. And you're physically unable to answer the phone when you're soldering a joint, working in a tight space, or standing in someone's flooded kitchen.
Research from Harvard Business Review shows that responding within 5 minutes makes you 21 times more likely to qualify a lead than waiting just 30 minutes. For a plumber who finishes a job at 5pm and calls back three numbers, that window closed hours ago.
Why call handling is the most important app on this list
6. VoxBot
Best for: Plumbers who miss calls while on site
Platform: Web (works with any phone)
Price: From £45/month
Website: voxbot.ai
Full disclosure: this is us. We built VoxBot for trades like plumbers who physically can't answer while working.
Here's how it works: you get a virtual phone number with call forwarding set up. Calls come in, and if you can't pick up, VoxBot answers. It understands what the caller needs—emergency callout vs. quote request vs. existing customer—captures their details, and sends you a notification with everything you need to call back.
What plumbers like:
- Answers 24/7—including the 11pm burst pipe calls that are worth £150–£300
- Qualifies calls automatically (emergency vs. general enquiry vs. existing customer)
- Captures job details: type of work, property, timeline, access requirements
- Professional greeting—sounds like a receptionist, not a voicemail
- Works with your existing number—no need to change anything on your van or website
Read our full guide to phone systems for plumbers for a deeper look at how this works, or check out AI call bot vs receptionist if you're weighing up your options.
See it in action: Listen to our live demos to hear how VoxBot handles real plumbing calls.
“I was missing two or three calls a day during summer—everyone wants bathrooms done at the same time. VoxBot picks up, gets their details, and I call back in the evening with the job info already there. I converted three bathroom jobs last month that I'd have completely lost. That's over fifteen grand from one app.”
Mark T., self-employed plumber, Bristol
The Stack We'd Recommend
You don't need all six apps. Here are two setups depending on where you are in business.
Starter Stack (Solo Plumber)
Simple, low-cost, and covers the essentials:
| Need | App | Cost |
|---|---|---|
| Invoicing | Contractor+ (Free tier) | £0 |
| Bookkeeping | FreeAgent (free with NatWest) | £0 |
| Scheduling | Google Calendar | £0 |
| Compliance | Gas Safe Register | £0 |
| Call Handling | VoxBot | £45/month |
Total: £45/month – One captured boiler installation pays for the full year.
Growth Stack (2–10 People)
For plumbing firms that need to dispatch, schedule, and manage multiple engineers:
| Need | App | Cost |
|---|---|---|
| Invoicing + Scheduling | Jobber | £29/month |
| Bookkeeping | FreeAgent | £19/month |
| Compliance | Gas Safe Register | £0 |
| Call Handling | VoxBot | £45/month |
Total: £93/month – Less than one emergency callout covers it.
The One That Matters Most
We've listed six apps here. If you only set up one, make it something that catches the calls you're currently missing.
Here's why: every other app helps you do work more efficiently. Call handling is the only one that captures money you're losing right now.
Miss a bathroom renovation because you were fitting a boiler? That's £6,000–£15,000 gone. Miss an emergency callout because you were under a sink? That's £150–£300. Miss three calls a week? Over a year, you're looking at tens of thousands in lost revenue.
The maths is straightforward. One captured bathroom job pays for a year of any call handling solution. Everything else is optimisation. Call handling is revenue you're currently leaving on the table.
Read more about how to never miss a customer call, or see our similar guide for electricians.
Related Reading
Want to go deeper on specific topics? These guides cover the details:
- Phone System for Plumbers – How to set up call handling specifically for plumbing businesses
- How to Never Miss a Customer Call – 7-step framework for 100% call capture
- AI Call Bot vs Human Receptionist – Which is right for your business?
- Virtual Phone Number for Small Business – Complete guide to virtual numbers
- Call Forwarding for Small Business – Set up forwarding on any device
- Best Apps for Electricians – The same guide, tailored for sparks
Last updated: March 2026
Ready to stop losing calls while you're on the job? Our support team can help you set up call handling that works for plumbers.
Or try VoxBot yourself: See live demos | Get started
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