Best Quoting App for Plumbers in the UK 2026: Top 5 Compared

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.

Best Quoting Apps for Plumbers UK 2026

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.

Ratings methodology: Based on hands-on testing against real UK tradesperson workflows, reviewed August 2026. Disclosure: Sleepless Tradesman is our own product — treat that row with appropriate scepticism; competitor ratings reflect direct platform testing.

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. Commusoft — Best for Plumbing & Heating Businesses

Commusoft is a UK-built field service platform designed for heating and plumbing businesses. It includes native Gas Safe and WRAS compliance fields, service contract scheduling, and plumbing quote templates. For plumbers running domestic heating and hot water installation work alongside general plumbing, Commusoft's depth of trade-specific compliance support sets it apart from generalist platforms.

Pricing runs approximately £70–100 per user per month, which makes it expensive for sole traders. For a plumbing business with multiple engineers handling service contracts, boiler installations, and unvented cylinder work, the built-in compliance workflows justify the cost. CIS deductions are handled natively, and the platform is UK-built with UK-focused support.

Pros for Plumbers:

• Gas Safe and WRAS compliance fields native
• Service contract scheduling built in
• Native CIS deductions
• Boiler and plumbing quote templates
• UK-built with UK support

Cons for Plumbers:

• Expensive for sole traders at £70–100/user/month
• Overkill for small one- or two-person plumbing operations
• Steeper learning curve than lighter-weight alternatives
• No meaningful free tier

5. Powered Now — Best for Plumbing Compliance Documentation

Powered Now is a UK-built app aimed at tradespeople with strong support for plumbing and gas compliance documentation. It includes Gas Safe fields, WRAS-related notes, and the ability to issue certificates and compliance documents directly from a mobile device. Plans start from approximately £25–35 per month, making it accessible for one-person plumbing businesses that need compliant documentation without enterprise-level complexity.

CIS deductions are supported natively. For sole-trader plumbers who need to produce compliant paperwork quickly — Part L notes, Gas Safe details, WRAS product references — Powered Now sits in a useful middle ground between a basic quoting tool and a full field service platform. It is less feature-rich than Commusoft for larger teams, but more plumbing-aware than general tools like Jobber or QuickBooks.

Pros for Plumbers:

• Gas Safe and WRAS fields supported
• Mobile compliance document issuance
• Native CIS deductions
• Affordable for sole traders
• UK-built product

Cons for Plumbers:

• Smaller community than Tradify or Jobber
• Less advanced scheduling for multi-engineer teams
• Fewer third-party integrations
• Not suited to larger plumbing operations

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

Related Guides

• Best Quoting Software for Plumbers UK
• Best Invoicing App for Plumbers UK
• Best Job Management App for Plumbers UK
• Best Scheduling App for Plumbers UK
• All UK Tradesman Guides
• Best Quoting Software for UK Tradespeople
• Try Sleepless Tradesman Free
• AI quoting software for UK tradespeople: full guide