How do I quote for an extension?

Build a multi-line estimate with separate lines for foundations, build, plastering, second-fix and any allowances or PC sums. The PDF is branded with your logo and details. When the customer signs off, convert to invoice in one tap.

Can I take a deposit before starting work?

Yes — send an invoice with a single line for the deposit amount, then send subsequent invoices for the actual work as it progresses. All linked to the same client and visible together.

Will my invoice PDF look professional enough for an architect or QS?

Yes. The default PDF is clean and well-typeset, with your logo, business details, itemised line items and totals. Most builders use it as-is for residential and small commercial work without changes.

Does it work for sole traders below the VAT threshold?

Yes. AllSquare works for sole traders without VAT registration and for VAT-registered businesses. Switch on VAT in settings when you cross the threshold and it applies to new invoices automatically.

Build the job, not the spreadsheet

Extensions, loft conversions, refits — bigger projects need professional paperwork, not weekend admin. AllSquare lets you quote in detail, invoice on-site, and keep clients on the same page.

Download for Free See features

Builders rarely send a single invoice for a job — they send several across the life of a project as work progresses. AllSquare is built for that rhythm. Build a detailed multi-line estimate at the start with labour and materials broken out, send it as a branded PDF, and convert it to the first invoice in one tap on sign-off. As the job progresses, build follow-up invoices that reference the work completed — labour days, plaster, second-fix, snagging — using your saved price list and voice-to-invoice when you’re short on time. Architects, surveyors and homeowners get a tidy paper trail and you stop doing maths in the kitchen.

Stage-by-stage billing for a build

Builders rarely send one invoice per job. AllSquare's saved client + invoice history is built around the multi-invoice rhythm of a build — deposit, mid-job, completion, snagging.

1
Deposit invoice
Single line item with the deposit amount. Locks the slot in your diary and pays for the first materials run.
2
Mid-job interim invoice
Itemise what stage is complete — foundations, first-fix, plastering — using your saved labour rates. Send before the next stage starts.
3
Completion invoice
Balance owed, with any agreed variations broken out as separate line items. PDF goes to the architect or QS as well as the homeowner.
4
Snagging or retention
Small final invoice once snags are closed and any retention period ends. Keeps the paper trail clean for the client and your books.

Built for builders who run their own books

The features that matter most for builder invoicing.

Multi-line estimates

Break down labour, materials and allowances on a detailed PDF estimate. Send and convert to invoice when signed off.

Saved price list

Common materials and your day rate, half-day rate and trade-specific labour rates saved once. Build invoices fast.

Voice-to-invoice

Describe the day’s work — “Two days plastering, 12 bags of multi-finish, half-day clean-up” — and AllSquare drafts the invoice.

Works offline

No site Wi-Fi? Create invoices offline. They sync the moment you’re back on signal, no data lost.

Indicative project ranges

UK pricing for common build types — use it as a sanity check, not gospel. Your real rates always win.

Single-storey side return extension

£35,000–£60,000

8–10 weeks, foundations, build, plastering, second-fix.

Loft conversion (dormer)

£45,000–£70,000

10–12 weeks, full structural plus en-suite.

Internal wall removal + RSJ

£2,800–£4,500

3–5 days, structural calcs, building control.

Garden room (timber frame)

£15,000–£28,000

4 weeks, foundations, build, electrics subcontract.

What builders get out of AllSquare

🏗️

Detailed quotes that win bigger jobs

Multi-line estimates with labour, materials and contingencies broken out. Customers compare you on detail, not just price.

📋

Invoice as the work progresses

Build follow-up invoices using your saved rates and voice-to-invoice. No retyping the same scope across multiple bills.

🧾

Branded paperwork that QSs accept

Logo, address, contact details and itemised scope on every PDF. Looks like the kind of paperwork a surveyor expects to see.

Builder invoicing — what people ask

Common questions from builders using AllSquare.

Yes — most builders do. Save the client once, then build each invoice (deposit, mid-job, completion) with line items describing what stage was completed. The client record keeps a full history of what’s been billed.

Simple, transparent pricing

Start free, upgrade when you need. No hidden fees, cancel anytime.

Free

Everything you need to get started

£0

Free forever

Invoices2 per month
Estimates2 per month
AI Credits10 / month
ClientsUnlimited
Price List
PDF Export
Cloud Sync
Custom Branding

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AllSquare Pro

Full access, cancel anytime

£5.99/month

Unlimited invoices, estimates & AI

InvoicesUnlimited
EstimatesUnlimited
AI Credits100 / month
ClientsUnlimited
Price List
PDF Export
Cloud Sync
Custom Branding
Priority Support

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Build more, invoice less

Builders use AllSquare to send detailed quotes, invoice on-site and keep clients on the same page.