Best Job Management and Quoting Apps for Heating Engineers and Tradespeople

If you’re a heating engineer, most of your week happens in lofts, kitchens and the van. The paperwork still has to be done, though, and for a lot of tradespeople quotes, invoices and gas safety records mean evenings spent catching up.

A job management app puts all of that on your phone. Below I compare seven apps that UK heating engineers, plumbers and other trades use for quoting, invoicing and running jobs, with prices from each company’s own website at the time of writing (November 2026). If you also want more enquiries, my page on websites and local SEO for heating engineers covers that side.

Some links in this post may be affiliate links. If you buy through them I may earn a small commission at no extra cost to you. I only include tools I’d recommend to my own clients.

What does a job management app do?

A job management app keeps every job in one place, from the first enquiry to the quote, the visit, the certificate and the paid invoice.

You open the job on your phone, see the customer’s address and history, take photos, get a signature and send the invoice before you’ve left the drive. Most also sync with Xero, QuickBooks or Sage, so you’re not typing numbers in twice.

What should a heating engineer look for in a job app?

Look for digital gas safety records, quick quotes and invoices, service reminders and a link to your accounting software.

• Certificates and records. The HSE accepts electronic gas safety records if they can be printed, are protected from loss and tampering, and identify the Gas Safe registered engineer.
• Quotes and invoices from your phone, ideally with online acceptance and card payments.
• Service reminders, so last year’s boiler service customers book again.
• Accounting sync. Making Tax Digital for Income Tax began on 6 April 2026 for sole traders with qualifying income over £50,000, dropping to £30,000 in April 2027. Your accounting software usually handles that, so your job app should talk to it.
• Pricing that fits your team: per user, per job or a flat fee.

The seven apps at a glance

• Gas Engineer Software (GES): certificates first. From £19 per user a month.
• Tradify: all-rounder for small teams. From £34 per user a month.
• Powered Now: certificates and invoicing for sole traders. From £28 a month.
• YourTradebase: flat fee for quoting. £29 a month.
• Fergus: materials and job costs. From £39 a month.
• ServiceM8: pay per job. Free plan, then from £25 a month.
• Commusoft: firms with six or more staff. Price on request.

Check each pricing page for VAT before you sign up.

1. Gas Engineer Software (GES)

Best for: gas, oil and heat pump engineers who want certificates sorted first.

Gas Engineer Software is built around heating work. Every plan includes records and certificates (gas, oil and heat pump). Core adds quotes, invoices, payments and scheduling; Pro adds Xero, QuickBooks and Sage integrations.

Price (November 2026): Starter £19, Core £25 and Pro £32 per user a month, excluding VAT, a little less if you pay yearly. 14-day free trial, no card needed.

Good: the forms are the ones heating engineers actually use. Watch out for: Starter is certificates only, so you need Core for quotes and invoices.

2. Tradify

Best for: small trade teams who want an easy all-rounder.

Tradify covers quotes, scheduling with Google Calendar sync, job notes, invoices and card payments, with Xero, Sage and QuickBooks Online sync on every plan. Pro adds compliance certificates, online quote acceptance, automatic payment chasers, recurring jobs and timesheets.

Price (November 2026): Lite £34, Pro £37 and Plus £44 per user a month, no contract. 14-day free trial.

Good: accounting sync on the cheapest plan. Watch out for: it’s priced per user, and certificates need Pro.

3. Powered Now

Best for: sole traders and small firms who want certificates and invoicing together.

Powered Now is built for UK trades. Every plan includes quotes, invoices, payment links and a diary. Professional adds more than 80 forms and certificates, including gas safety records, plus Xero and QuickBooks. Premium adds drag-and-drop staff scheduling.

Price (November 2026): Business (one user) £28, Professional £32 per user and Premium £40 per user a month, excluding VAT, or two months free if you pay yearly. 14-day free trial, no card needed.

Good: certificates and accounting sync on a mid-priced plan. Watch out for: the Business plan doesn’t include certificates or the accounting link.

4. YourTradebase

Best for: anyone who wants one simple monthly price and professional quotes.

YourTradebase focuses on quoting, scheduling, invoicing and card payments, with quote templates, a saved price list and your logo and accreditations on every quote. It connects to Xero and QuickBooks.

Price (November 2026): £29 a month plus VAT, extra users £15 a month each, two months free if you pay yearly. 30-day free trial, the longest here.

Good: easy to budget for. Watch out for: its website doesn’t mention gas safety certificates, so check first if you need them.

5. Fergus

Best for: plumbing and heating businesses that want a close eye on materials and job costs.

Fergus is built around job cards, quoting, price books and timesheets. Certificates are free on both plans and it syncs with Xero and QuickBooks. Professional adds automatic supplier integrations, purchase orders and detailed financial reporting.

Price (November 2026): Essentials from £39 and Professional from £45 a month. Timesheet users from £12 a month, texts £8 per 100. 14-day free trial, no lock-in.

Good: strong on costs and materials for bigger installs. Watch out for: extras like users, texts and card fees (1.6% plus 20p) add up.

6. ServiceM8

Best for: one-person businesses on a tight budget, or teams who’d rather pay per job than per person.

ServiceM8 charges by jobs per month, and paid plans include unlimited users. You can quote, schedule, take photos and signatures, complete PDF forms and invoice on site, with Xero and QuickBooks sync.

Price (November 2026): free for one user and 30 jobs a month. Starter £25 (50 jobs), Growing £59 (150 jobs), Premium £119 (500 jobs) and Premium Plus £269 a month. 14-day free trial.

Good: a real free plan, and extra staff cost nothing. Watch out for: it mentions PDF forms rather than gas certificates, so check it covers your records.

7. Commusoft

Best for: established heating, plumbing and HVAC firms with six or more staff.

Commusoft is a bigger system. Engineers complete landlord gas safety certificates (CP12s) in the app, even offline, and service contracts send customers annual boiler service reminders with online booking. It also handles job costing, van stock and dispatch.

Price (November 2026): not published. You book a demo or call for a quote.

Good: service contracts and reminders are built in. Watch out for: it’s likely to be more than a sole trader needs.

Which job app should I choose?

Start with what takes most of your time: gas paperwork points to a heating-specific app, quoting to an all-rounder, and six or more staff to a bigger system.

As a rough guide, a sole gas engineer could start with GES or Powered Now, and a small plumbing and heating team might prefer Tradify or Fergus. Most offer a free trial, so put two through a week of real jobs before you decide. Then set it up once with your logo, Gas Safe number and prices.

Does a job management app replace a website?

No. A job app helps you run the work you’ve already won, but your website and Google Business Profile are how new customers find you.

Job apps aren’t built to help you show up when someone nearby searches for a boiler service. That comes from a website with a page for each service and area, and a well set-up Google Business Profile. The same goes for plumbers and electricians.

How I can help

I don’t sell any of these apps. I help heating engineers and other trades get found online, and I’ve worked with around 25 heating and plumbing businesses on their websites, local SEO and online visibility. Read more about how I help heating engineers win more local enquiries, or see a heating website I designed, built and manage.

A one-page website starts from £375 and a starter website from £795 (hosting and domain not included). See my pricing page, or send me a message for a second opinion on your website.

Related reading: what should a heating engineer’s website include?

Frequently asked questions

Is there a free job management app for tradespeople?

ServiceM8 has a free plan for one user and up to 30 jobs a month. YourTradebase says that if you don’t carry on after its 30-day trial, your account moves to a free account with usage limits. Most of the others offer a 14-day free trial.

Can I issue gas safety certificates from an app?

Yes. Gas Engineer Software, Tradify (Pro plan), Powered Now (Professional and Premium) and Commusoft all include certificates or compliance forms. The HSE accepts electronic gas safety records as long as they can be printed, are protected from loss and tampering, and identify the Gas Safe registered engineer who did the check.

Do I need Making Tax Digital software?

If you’re a sole trader with qualifying income over £50,000, Making Tax Digital for Income Tax has applied since 6 April 2026. The threshold falls to £30,000 from April 2027 and £20,000 from April 2028. Your accounting software usually handles it, so choose a job app that syncs with it and check with your accountant.

Do these apps work for plumbers and electricians too?

Yes. Tradify, Powered Now, YourTradebase, Fergus, ServiceM8 and Commusoft are made for trades in general. Gas Engineer Software is the most heating-specific of the seven.

How much does a job management app cost for a sole trader?

At the time of writing (November 2026), one user can expect to pay roughly £19 to £45 a month on the paid plans here, depending on the app and plan, or nothing on ServiceM8’s free plan if you do 30 jobs a month or fewer.