Best software for small UK builders

Most "construction software" lists are written for US home builders with project managers and big budgets. This one is for small UK building firms: one to ten people, multi-week jobs, subbies, merchant accounts and CIS. Prices were checked on 12 October 2026.

What does a small builder need from software?

A plumber's job might last two hours. Yours might last eight weeks. That changes what you need from software. Here are the jobs it has to do well.

Multi-week jobs with phases

An extension has groundworks, shell, first fix, plastering, second fix and snagging. You want to split a job into phases or stages, schedule each one, and see where every job is at a glance. Fergus includes job phases and tasks on its Pro plan. Tradify handles this through scheduling and progress invoicing.

Staged or progress invoicing

Cash flow is what sinks small builders. You need to bill a deposit, then stage payments as work hits milestones, then a final balance, all against one quote so nothing gets missed. Tradify includes progress invoicing from its Pro plan.

Variations

The customer wants bifold doors instead of French doors halfway through. If that change is not written down, priced and agreed, you either do it for free or have an argument at the final invoice. Good software lets you add a variation to the job, get it approved and bill it in the next stage.

Subcontractors

Most builders rely on subbies: electricians, plumbers, plasterers. Tradify includes subcontractor scheduling from its Pro plan. Fergus offers "contractor users" at £2 per user per day, which suits subbies who are only on site for a few days.

CIS deductions

Purchase orders and job costing

On a big job, materials can be half the price. Purchase orders tell the merchant exactly what you ordered and let you check the invoice when it arrives. Job costing then compares your quote with what you actually spent on labour and materials. This is where small builders find out a job made far less than they priced in, usually too late. Fergus has purchase orders and automatic supplier integrations on Pro. Tradify has purchase orders on Plus. Powered Now includes supplier invoices and purchase orders on every plan.

Builders software compared: price, job costing, accounting and mobile

Our top picks for small builders

What about ServiceM8 and Jobber?

Both appear on lots of "best software" lists, but neither is our pick for builders. ServiceM8 prices by jobs per month (free for 30 jobs, then £25 to £269 a month with unlimited users), which is great value for short call-outs but has no named purchase orders on its pricing page; job costing and supplier invoice import are add-ons. Jobber is an excellent product, but its UK pricing page showed US dollars when we checked, and its Xero sync is one-way. If most of your work is small repair jobs rather than builds, ServiceM8 is worth a look; our CRM for trades guide covers it alongside the rest.

What about Buildertrend?

Buildertrend often tops US lists. It offers unlimited users and projects on a custom quote, priced in US dollars by revenue band, and its payments feature is US-only. For a small UK builder, it is more than you need and harder to budget.

What does builders software cost? Two worked examples

Example 1: sole trader builder doing extensions and renovations

Worked example: you quote a £40,000 single-storey extension with a 10% deposit and four stage payments. With progress invoicing, that is six invoices raised from one quote, each one showing what has been paid and what is left. If software helps you bill each stage one week sooner, you have a stage payment in the bank a week earlier on every job. That alone pays for a £37 subscription many times over.

Example 2: building firm with 5 people (owner, office manager, three on site)

Verdict: YourTradebase is the cheapest for a 5-person team. Fergus is the one to pick if you lose money on materials or overruns and want tight job costing. Tradify is best if you do a mix of big builds and smaller repair jobs and your accountant uses Sage.

Worked example: what job costing shows you

Here is a made-up but typical case. You quote a kitchen knock-through at £18,000, allowing £7,000 for materials and £6,000 for labour, leaving £5,000 for overheads and profit. Halfway through, the steel goes up in price, two extra days are needed for making good, and a skip is swapped twice. Without job costing you find out at the year end, when your accountant tells you the margin was thin. With materials costs and timesheets logged against the job, you see the overspend while you can still raise a variation with the customer. That is the main reason we rank Fergus first for builders: it tracks materials and timesheets against each job, and its Pro plan adds purchase orders and supplier integrations.

Taking payments

Big stage payments are usually bank transfers, but card and direct debit help with deposits and smaller jobs. Fergus Pay offers tap to pay, direct debit, Clearpay, card and Apple Pay, with card payments at 1.6% plus 20p. Tradify includes online and card payments on all plans. YourTradebase includes card payments. Powered Now offers payment links, plus SumUp for card payments on site.

Which features matter most for builders?

Worth paying for

• Progress invoicing for deposits and stage payments.
• Job costing that compares quoted against actual labour and materials.
• Purchase orders once you spend serious money at merchants.
• Subcontractor access so subbies can see their jobs without a full licence.
• Photos and notes on the job to back up variations and snagging.
• An accounting link that your accountant actually uses. Our accounting software for tradesmen guide compares Xero, QuickBooks and Sage.

Health and safety paperwork

Builders deal with more site risk than most trades, and clients may ask for risk assessments before work starts. Fergus Pro includes hazards and safe work method statements (SWMS, a written plan of how a risky task will be done safely), plus checklists and forms. Powered Now lists risk assessments among its trade forms on the Professional plan. Tradify offers custom-branded forms from Pro, which you can set up as your own site checklist. If you currently keep risk assessments in a ring binder in the van, any of these is an upgrade.

Usually safe to skip

• Full construction project management suites (Gantt charts, document control) unless you run several sites at once.
• Fleet tracking for two or three vans.
• A separate CRM. Lead tracking in YourTradebase or enquiry management in Fergus Pro is enough for most builders. See our CRM for trades guide if you get lots of leads.
• A separate quoting tool. Our quote and invoice software guide explains when one is worth it.

What mistakes should builders avoid when switching?

1. Switching mid-job. Move new jobs onto the new system and finish live jobs on the old one. Moving a half-paid extension across is where invoices get lost.
2. Not loading your price lists. Job costing is only as good as your material prices. Import merchant price lists before you quote.
3. Buying a US construction suite. US dollar pricing and US-only payments make them awkward for UK firms.
4. Assuming the software does CIS. Check with your accountant how CIS will be handled before you pay your first subbie through the new system.
5. Paying for licences nobody uses. On per-user tools, labourers who only need to see the day's job may not need a full licence. Fergus charges contractor users by the day and timesheet users from £12 a month list price; YourTradebase adds users at £15 each. Count who really needs access.
6. Ignoring MTD. MTD for Income Tax applies from 6 April 2026 if your qualifying income is over £50,000, from 6 April 2027 over £30,000 and from 6 April 2028 over £20,000. Make sure your setup can cope. Our full job management software guide covers this.