Job management & timesheet app for UK plumbers

For UK plumbers and heating engineers. Send jobs to engineers’ phones, capture signed-off job sheets on-site, raise invoices the moment work is done. Built for trades since 2012.

  • iOS & Android job sheet app with offline mode
  • Push jobs to engineers, track who’s where in real time
  • Signature capture, photos and PDF attachments
  • Quotes, invoices, parts and stock in one place
  • Read-receipts on quotes and invoices
  • Customers sign off jobs from their phone

£75/admin · £20/engineer · monthly, no contract · 14 days on the live system, not a demo · no card · pay 10 months, get 12

Onsite Pro dashboard - job management and timesheets

Why UK plumbers use Onsite Pro

Running a plumbing business is mostly paperwork chasing. Job sheets in the van. Photos on engineers’ phones. Hours scribbled on the back of a quote. Then an evening re-keying it all so you can invoice on Friday.

Onsite Pro replaces that with a digital job sheet app your plumbers use on-site. Photos, time logged, customer signature, parts used – all attached to the job in real time. The office sees every update live. Invoices go out the moment work signs off, not days later. If you want the numbers first, we’ve broken down what paper admin actually costs a trade firm.

Built since 2012, from Lichfield, by people who actually understand UK trade business. Same founder, same UK team, since day one. We also run job management for HVAC and heating engineers and building firms – useful if your firm covers plumbing, heating and bathroom install work. Job Management Made Simple.

What sold it for me was the signature on screen. We had a dispute back in 2023 over a boiler swap and lost £800 because we couldn't prove who said what. That's not happening again.

Everything Onsite Pro does for you

Quote and invoice

Send quotes for boiler installs, bathroom fits, leak repairs. Invoice the moment work signs off.

Manage engineers

Push jobs to your plumbers’ phones. Live GPS tracking. Dispatch the right engineer to emergencies fast.

Mobile timesheets

Plumbers log hours, parts and notes on-site. Office sees every update in real time.

Signature capture

Customers sign off on the engineer’s phone. Geo-stamped and dated for audit trail.

Photos & notes

Attach site photos, pipe diagrams and any PDF documents. Linked to the customer and job for life.

Stock & parts

Built-in stock control. Engineers log copper, fittings, valves. Customers billed automatically.

Activity feed

See every job, quote, invoice and engineer movement live. Catch bottlenecks before they cost you.

Improved cashflow

Invoice the moment work signs off. No admin delay, customers pay faster.

UK plumber capturing a customer signature on a smartphone after a boiler job, using the Onsite Pro mobile app
Customer signs the job sheet on the engineer's phone – one tap and it becomes an invoice with the right hours and parts already filled in.

From leak call to paid invoice: Onsite Pro for plumbers

  1. Customer call comes in. Leak, blockage, boiler install, bathroom refit – whatever the job, log it in the dashboard in 30 seconds with the customer details, address, and what needs doing.
  2. Quote and book. Build a parts-and-labour quote from the dashboard or mobile app, send it by email, or get the customer to e-sign it there and then. Once accepted it becomes a job in your diary.
  3. Dispatch the right plumber. Drag the job into the right plumber’s day or assign by skill – emergency callout, installs, maintenance. The job lands on their phone instantly.
  4. Plumber on-site. Plumber opens the job on their phone, taps to start the clock. Sees the site notes, customer history, parts to fit, what to charge.
  5. Capture everything. Hours logged, parts used, before/after photos of the work, customer notes – all attached to the digital job sheet in real time.
  6. Sign-off and invoice. Customer signs the job sheet on the phone. One tap and it becomes a chargeable invoice with the right hours, parts and rates already filled in.
2012Built for UK trades
UKServers & support
£0Setup. No contract.
14Day free trial
Full system. Not a demo.

Built for sole plumbers, growing teams and plumbing contractors

Sole-trader plumbers

Look as professional as the bigger firms. One admin licence, one engineer licence, branded quotes, signed-off job sheets and invoices that go out before you leave the customer’s driveway.

Growing teams (2 to 5 plumbers)

Stop chasing job sheets every Friday night. Plumbers see their diaries on their phones. Customers get faster quotes, faster work, faster invoices. Office gets a real picture of who’s where.

Plumbing & heating contractors (5 to 50)

Real-time GPS, skill-based scheduling for emergency vs install vs maintenance, parts and stock across multiple vans, reporting that shows which plumbers are profitable and which jobs are over budget.

Common questions

Can my plumbers use the app without signal?
Yes. Engineers can complete job sheets, take photos, capture signatures and log time fully offline. Everything syncs the moment they hit a signal.
Can I attach documents to a job?
Yes – attach any PDF, photo or signed sheet to a job. Onsite Pro keeps documents linked to the customer and job for life.
How does it work for a plumbing team?
Office staff log in to the dashboard (£75/admin/month) and engineers use the iOS or Android app (£20/engineer/month). Jobs get pushed to whoever is closest or available.
Will it integrate with my accounts software?
CSV exports for QuickBooks, Xero, Sage or Zoho today. Direct integrations are on the roadmap.
How long is the free trial?
14 days. Full system, not a demo. No card required. Cancel anytime.
Is there a free job management app for plumbers I can try?
Yes – Onsite Pro offers a free 14-day trial of the full live system. Not a demo, the actual product with every feature unlocked. No credit card required.
Can I customise the digital job sheet template?
Yes. The digital job sheet is fully customisable – add your branded header, your terms, your custom fields, parts lists. Most plumbers stick close to the default because it covers most callouts and installs out of the box.
Does it work for emergency callouts and scheduled installs separately?
Yes. You can dispatch different engineer groups, set different skill tags, assign jobs to specific team members. Useful when one plumber is on emergency callouts while another is on a planned bathroom install the same day.
How does Onsite Pro handle quotes and invoices for plumbing work?
Quotes get built in seconds from the dashboard or the mobile app, with parts and labour pre-priced. Once accepted, they convert to a scheduled job in one tap. After work signs off, the job sheet becomes an invoice with the right hours, parts and customer details already filled in.
Is my customer and job data secure?
Each customer gets a dedicated UK-hosted database. HTTPS everywhere, daily off-site backups, no shared multi-tenant tables. Your data stays in UK jurisdiction.
Where is the Onsite Pro team based?
Lichfield, Staffordshire. Onsite Pro (originally launched as iManage App) has been based in Lichfield since 2012. Phone support is answered in the UK, not an outsourced call centre.
Can I see a demo before signing up?
Yes – book a 30-minute one-to-one demo with founder John Bryan. Tuesday to Friday between 11am and 3pm UK time. Book a demo.
Can plumbers log parts pulled from van stock?
Yes – the van stock module tracks parts in each plumber’s van. When they fit a coupling or a section of pipe, it deducts from van stock and adds to the job. Replenishment alerts when stock runs low.
Does it handle emergency callouts differently from scheduled work?
Today: emergency calls get added to the dispatch view like any other job and the office allocates by hand. Coming soon: emergency / priority job tagging that auto-routes to the top of the queue, plus SMS notifications to clients about engineer arrival.
Can I record water meter readings or boiler service notes against a property?
Yes. Engineers can record meter readings, boiler model numbers, service intervals, and other property-specific data that follows the address – so when you go back six months later it’s all there.

Try the live system for 14 days

The actual software our paying customers use. Every feature unlocked. No card required.

Start your free trial

Or see pricing first.