Best Quoting App for Plumbers in the UK 2026: Top 5 Compared
Plumbing quotes are more complex than most trades. A straightforward bathroom renovation can involve unvented hot water cylinders, Part L compliance checks, Gas Safe certification requirements, WRAS-approved fittings, and Benchmark commissioning records — all before you even price up the labour. Generic quoting tools built for service businesses simply do not account for this complexity, which means UK plumbers often end up cobbling together spreadsheets, Word documents and separate compliance forms just to get a professional quote out the door.
The right quoting app can cut your admin time significantly. Instead of manually writing out line items for every boiler replacement or CP12 service, you can build a library of trade-specific tasks and materials, apply your standard labour rates and markup, and send a polished, VAT-compliant quote in minutes from your phone. The best apps also handle the follow-up — reminding customers who have not accepted, converting accepted quotes straight to invoices, and tracking payments so nothing slips through.
We reviewed five leading quoting apps used by UK plumbers in 2026. This guide cuts through the marketing and tells you exactly what each app does well, where it falls short, and which type of plumbing business it suits best — from sole-trader gas engineers to multi-van plumbing and heating contractors.
What Plumbers Need in Quoting App Software
Not every quoting tool is built with UK trades in mind. Before comparing apps, here are the features that matter most for plumbers working in Britain:
- UK VAT and CIS compliance.Quotes and invoices must show VAT correctly — including the domestic reverse charge for CIS subcontractors. Apps that do not handle this force you into manual workarounds or separate accounting software just to stay compliant with HMRC.
- Gas Safe and Part L awareness.Boiler replacements and new heating system installations require Gas Safe registration and must meet Part L energy efficiency requirements. A good quoting app lets you note certification details, include compliance clauses in quotes, and attach relevant documentation — rather than relying on a separate folder of PDFs.
- CP12 and service records.Gas engineers carrying out annual landlord gas safety checks (CP12) need a quick way to document and deliver the record. Apps that support job attachments or document templates make this process far less painful than emailing scanned forms.
- WRAS-approved materials and unvented hot water.Quoting for unvented hot water system installations involves G3 Building Regulations notifications and WRAS-approved components. Having a materials library where you can tag items as WRAS-compliant — and include the relevant safety warning clauses — saves time and reduces liability risk.
- Benchmark commissioning documentation.Every new boiler installation requires a completed Benchmark commissioning checklist to validate the manufacturer warranty. Apps that let you attach or reference commissioning records within a job help ensure nothing gets missed at practical completion.
- Mobile-first job management.Plumbers spend their days on site, not behind a desk. Any app you use seriously needs to work well on iOS and Android — including offline mode for basements and plant rooms with poor signal.
Top 5 Quoting Apps for Plumbers
| App | Free Plan | Paid From | Best For | UK Support |
|---|---|---|---|---|
| Sleepless Tradesman | Yes | Free forever tier | Sole-trader plumbers | Built for UK |
| Tradify | 14-day trial | £29/user/month | Small plumbing teams | UK-focused |
| ServiceM8 | Limited free tier | £9/month | Dispatch-heavy teams | Australia-first |
| Jobber | 14-day trial | £49/month | Client communication | US-focused |
| QuickBooks | 30-day trial | £14/month | Accounting integration | MTD/CIS ready |
1. Sleepless Tradesman — Best Free Option for UK Plumbers
Sleepless Tradesman was built specifically for UK tradespeople, and it shows. The app uses AI to help you write and price quotes quickly — you describe the job in plain English and the AI drafts line items, labour hours and material costs based on UK trade rates. For plumbers, this is genuinely useful: quoting a boiler replacement with flue, system flush, Benchmark commissioning and Gas Safe notification fee takes minutes rather than half an hour.
The free tier covers AI-powered quoting, invoice sending, job tracking and customer management with no monthly subscription — making it the only option on this list that costs nothing to use properly. UK VAT rates are built in, and CIS deduction handling is supported so sole-trader gas engineers and plumbers working as subcontractors are properly covered.
Pros for Plumbers:
- Free tier with no time limit — no subscription needed for sole traders
- AI quoting trained on UK trade rates saves significant time
- UK VAT and CIS deduction support built in from the start
- Mobile app works well on site, including low-connectivity scenarios
- Quote-to-invoice conversion with automatic payment tracking
Cons for Plumbers:
- Newer platform — fewer integrations than established competitors
- Advanced scheduling and multi-engineer dispatch less mature than Tradify
- No native Gas Safe certificate templates (you can attach PDFs manually)
2. Tradify — Best Paid Option for UK Tradespeople
Tradify has built a strong reputation among UK tradespeople since expanding from New Zealand and has genuine UK-market focus — including VAT, CIS and Making Tax Digital (MTD) compatibility. At £29 per user per month it is not cheap for a sole trader, but for a plumbing business with two to five engineers it offers excellent value with full job management: scheduling, timesheets, purchase orders, and a client-facing portal for quote acceptance.
For plumbers specifically, Tradify handles service job scheduling well — ideal if you carry out regular boiler servicing, CP12 landlord checks or annual maintenance contracts. You can set recurring jobs, track service history per property, and manage certificates and attachments within each job record. The quote builder is straightforward and supports custom line items, materials with markup, and labour rates.
Pros for Plumbers:
- Strong UK market focus with VAT, CIS and MTD support
- Recurring job scheduling ideal for CP12 and annual service contracts
- Per-property job history useful for landlords and letting agents
- Integrates with Xero and QuickBooks for accounting
- Good mobile app with offline capability
Cons for Plumbers:
- £29/user/month is expensive for sole traders — adds up quickly with multiple engineers
- No free tier beyond the 14-day trial
- Quote interface less polished than Jobber at this price point
3. ServiceM8 — Best for Field Service Dispatch
ServiceM8 is an iOS-first field service management platform that started in Australia and remains strongest in that market. That said, it has gained traction among UK plumbers who run multi-van operations and need real-time GPS dispatch, job queuing and client communication all in one place. The pricing model is usage-based rather than per-user, which makes it attractive for businesses with variable headcount.
For UK plumbing businesses, ServiceM8 works best when dispatch complexity is the primary pain point — for example, an emergency plumber covering a large area who needs to assign the nearest available engineer to call-outs throughout the day. Quote creation is capable but not the star feature. UK-specific compliance requirements like Gas Safe notation and Part L documentation are not natively supported and require manual workarounds.
Pros for Plumbers:
- Excellent GPS-based dispatch for multi-van operations
- Usage-based pricing suits businesses with variable team size
- Strong customer communication tools — automated SMS and email updates
- Xero integration handles UK accounting reasonably well
Cons for Plumbers:
- Australia-first platform — UK VAT and CIS less polished than UK-built competitors
- iOS-first means Android users get a notably worse experience
- No native Gas Safe, Part L or Benchmark documentation support
- Can feel overly complex for sole traders or small teams
4. Jobber — Best for Client Communication
Jobber is arguably the most polished quoting and job management platform available, with a slick client portal, automated quote follow-ups and professional-looking customer-facing documents. UK plumbers who serve residential customers and want a premium client experience — automated appointment reminders, online quote approval, instant payment via card — will find Jobber impressive.
The downside for UK plumbers is that Jobber is primarily built for the US and Canadian markets. VAT is supported but CIS deduction handling and Making Tax Digital compliance are not native features — you will need to rely on a QuickBooks or Xero integration to stay compliant. At £49/month for the entry-level plan it is also significantly more expensive than the alternatives, with the most useful features (two-way text messaging, automated follow-ups) locked behind higher tiers.
Pros for Plumbers:
- Best-in-class client portal and customer communication
- Online quote approval and card payment built in
- Automated follow-up sequences reduce lost quotes
- Very polished mobile app on both iOS and Android
Cons for Plumbers:
- US-focused — CIS and MTD compliance require workarounds
- Starting at £49/month it is expensive for sole traders
- Best features (SMS, automated follow-ups) on higher-priced tiers
- No plumbing-specific compliance documentation tools
5. QuickBooks — Best for Accounting Integration
QuickBooks is primarily accounting software with quoting and invoicing bolted on — and in that context it is genuinely excellent for UK plumbers. MTD VAT submissions, CIS deductions, and self-assessment records are all handled natively, making it the most complete solution for plumbers who want their quoting, invoicing, tax and payroll in one place. The entry-level plan starts at £14/month, which is competitive.
The significant caveat is that QuickBooks is not built for field service. Quote creation is functional but slow on mobile, there is no job scheduling or dispatch, and the workflow does not match how a plumber actually operates on site. Most plumbers who use QuickBooks pair it with a dedicated field management tool — which adds cost and friction. It is best suited to plumbing businesses whose accountant already uses QuickBooks and who want to eliminate a separate accounting subscription.
Pros for Plumbers:
- MTD VAT and CIS submissions built in — best accounting compliance of any option
- Affordable entry price at £14/month
- Widely used by UK accountants — easy to hand off books at year end
- Payroll add-on available for plumbing businesses with employees
Cons for Plumbers:
- Not built for field service — no scheduling, dispatch or job management
- Mobile quoting experience is slow and cumbersome compared to trade-specific apps
- No plumbing-specific features (Gas Safe, Part L, Benchmark, WRAS)
- Typically needs pairing with another tool, increasing total cost
Which App Is Right for Your Plumbing Business?
Solo gas engineers and sole-trader plumbers should start with Sleepless Tradesman. The free tier covers everything you need to run a professional quoting and invoicing process — without a monthly subscription eating into your margins. The AI quoting is particularly useful when you are pricing complex jobs like boiler swaps with Part L documentation, unvented cylinder installations or bathroom refits with multiple trade elements. You can always upgrade later if you need team features.
Growing plumbing teams of two to five engineers should look seriously at Tradify. The per-user pricing model makes sense once you need proper job scheduling, timesheet tracking and multi-engineer coordination. Its UK focus means VAT and CIS are handled correctly without workarounds, and the recurring job functionality is ideal for heating engineers who maintain large portfolios of annual CP12 and boiler service contracts.
Plumbers who prioritise accounting compliance above all else — particularly those already filing MTD VAT returns or managing CIS subcontractors — may find QuickBooks the simplest solution despite its field-service limitations. If your accountant uses QuickBooks Online, keeping your quoting in the same platform eliminates a significant data-entry burden at year end.
Emergency plumbers or heating contractors running a dispatch-heavy operation with multiple vans and reactive call-outs should evaluate ServiceM8 for its GPS scheduling capabilities. It is more setup work than the other options, and you will need to handle UK compliance documentation outside the platform, but for real-time multi-engineer dispatch it remains one of the better options available.
Frequently Asked Questions
What is the best quoting app for Plumbers in the UK?
Sleepless Tradesman is the top free option for Plumbers — no monthly subscription on the free tier, AI-powered quoting, and UK VAT/CIS support. For teams needing full job management, Tradify at £29/month is the best UK-focused paid option. ServiceM8 suits field-service-heavy workflows, while QuickBooks works best for Plumbers who need integrated accounting.
Is there a free quoting app for Plumbers?
Yes. Sleepless Tradesman offers a free tier with no monthly fee covering AI-powered quoting, invoice sending and job tracking — suitable for sole-trader Plumbers. Other platforms offer limited free trials but require a paid subscription for ongoing use.
What features should Plumbers look for in quoting app software?
Plumbers should look for software that handles Gas Safe, Part L, UK VAT/CIS compliance, mobile-friendly job cards, and customer communication. Trade-specific line items and material markup tools save significant time when quoting. Support for CP12 records, Benchmark commissioning documentation and WRAS-compliant material libraries is a bonus that generic business software rarely provides.