Sector — sole traders

Job software for the one-man band

Estimark Solo costs £29 a month, covers one user and fifteen open jobs at a time, and is built so a sole trader can quote, run the job and invoice it without a back office. It installs to your phone’s home screen and keeps working when the site has no signal.

What actually goes wrong

01

Quoting happens at 9pm

The quote gets typed up after a full day on the tools, in a word processor, and every number gets entered twice.

02

Nobody signed anything

A verbal yes is not a record. When the customer says the extra socket was included, there is nothing to point at.

03

The invoice goes out late

Paperwork waits for the weekend, so payment waits for the month after.

04

Half your sites have no signal

Anything that needs a live connection gets written on the back of a delivery note and lost.

Sector — how it works

Can I quote from my phone?

Yes. Estimark installs to the home screen of any phone or tablet as a progressive web app — there is nothing to download from an app store — and quoting is a full mobile screen, not a cut-down one.

  • Quotes are built from line items with quantity and unit price, priced against your own price book.
  • VAT is applied at your company rate and stored on the quote.
  • The finished quote renders as a branded PDF you can email from the phone.
  • Native iOS and Android apps are in development. The installable web app is the field product today.

How does a customer accept a quote?

You send a portal link and the customer accepts and signs it in their browser. They do not create an account, download anything or log in.

  • The signature is stored with the signer’s name, email address, IP address, browser and a timestamp.
  • Optional line items can be ticked or unticked by the customer before they sign.
  • Accepting the quote creates the job automatically, carrying across only the items they chose.
  • Declining is recorded against the quote rather than disappearing into an unanswered email.

How do I get paid?

Estimark raises the invoice, emails it as a branded PDF and records payments against it. It does not take card payments from your customer on your behalf.

  • Every payment you record is a ledger entry with amount, date, method and reference — not just a “paid” tick.
  • Over-payment is rejected, and a payment recorded in error can be voided.
  • Credit notes, payment plans and payment reminders are all built in.

NoteTaking a card or Direct Debit payment from your customer through Estimark is deliberately switched off for launch. You invoice; the money goes straight to your bank.

Does it work with Xero?

Yes. Invoices are pushed to Xero, QuickBooks, FreshBooks or Sage Business Cloud Accounting, and invoice payment status is pulled back once a day at 08:30.

  • The push covers sales invoices, purchase orders as bills, certified payment applications and retention releases.
  • You can also force a sync on a single invoice at any time.
  • If the accounting package is unreachable, the push fails quietly and your Estimark record is still correct.

NoteThis is a one-way push with a payment-status pull back. There is no journal posting, no nominal ledger posting and no two-way sync.

What happens when there is no signal?

Field mode keeps working offline and queues everything you do until the signal comes back.

  • The app shell is cached, so it loads and navigates with no connection at all.
  • Anything you create or change offline is stored in the browser’s own database and replayed automatically when you reconnect.
  • Photos survive the queue — they are encoded and stored, not dropped.
  • A change that fails to sync is retried up to five times and then held for you. It is never silently discarded.

Do I need the CIS module?

Only if you pay subcontractors. CIS Compliance is a £19-a-month module, included from the Pro plan, and it is for the contractor doing the deducting.

  • If you are the subcontractor being deducted from, you do not need it.
  • The day you start paying labour-only subbies, CIS becomes your obligation — that is the point to add it.

Solo, in numbers

Plan
Solo
Price
£29 / month
Users
1
Open jobs
15 at a time
Free trial
14 days
Install
Home screen — no app store
Which plan

Solo

£29/month

One user, fifteen open jobs at a time. Completed, invoiced and cancelled jobs do not count against the limit.

What you get

  • Quotes with line items, price book and VAT
  • Online quote acceptance and signature
  • Jobs, invoicing and a full payment ledger
  • Installable app with offline field mode
  • Xero, QuickBooks, FreshBooks, Sage Business Cloud

Timesheets (£15/month), Site Diary (£9/month) and Photo Management (£9/month) are available from the Solo plan upward. Move to Core at £99/month when you need a second and third user.

Every module and price →

Questions

Sole tradersfrequently asked

How much is Estimark for a sole trader?

Estimark Solo is £29 a month. It covers one user and fifteen open jobs at a time, and every plan starts with a 14-day free trial.

Is there an Estimark app for iPhone or Android?

Estimark installs to the home screen of any iPhone, Android phone or tablet as a progressive web app, so there is nothing to download from an app store. It has an offline field mode that queues your work with no signal and syncs when you reconnect. Native iOS and Android apps are in development.

Can my customer sign a quote on their phone?

Yes. You send a portal link and the customer accepts and signs in their browser without creating an account. The signature is recorded with their name, email address, IP address and a timestamp, and accepting the quote creates the job automatically.

Can customers pay their invoice by card through Estimark?

No. Card and Direct Debit collection from your customers is deliberately disabled at launch. Estimark emails the invoice as a PDF and you record the payment when it lands in your bank account.

How many jobs can I run on the Solo plan?

Fifteen open jobs at a time. Jobs marked complete, invoiced or cancelled no longer count, so the limit is on work in progress rather than on total jobs. Core and above have no job limit.