For domestic builders - extensions, lofts, refurbs
“While you’re here, could you just…” Get paid for it.
Extras are where domestic margins disappear: agreed in the kitchen, done on goodwill, argued about at the final bill. VariationFlow runs the whole job from the first quote - accepted online from the client's phone - to the last extra: priced, signed and on the running total, in about a minute each.
Built for homeowner jobs, not just contracts
No JCT, no NEC, no QS on the other side - just you, the client, and the work. The paperwork matches: plain language, consumer law handled, evidence first.
Quoted, sent, accepted - signed from their phone
Build the quote as line items with VAT handled, send it by email or WhatsApp link, and the client accepts by typing their name - timestamped, recorded, done. The accepted quote becomes the job automatically.
Invoices that say how to pay
Your bank details and a pay-online link on every invoice and payment summary. The fastest way to get paid is removing the client’s excuse to ask how.
Extras signed at the kitchen table
Describe the extra, price it, and get the client’s signature on your phone - photos, time and location attached automatically. A signed extra is the argument won before it starts.
A running total the client can see
Original quote plus agreed extras equals current total - shared as you go. Clients who watched the number move don’t get final-bill shock, and final-bill shock is where disputes are born.
The 14-day rule, handled
Quotes accepted online and extras agreed in a client’s home both carry a 14-day cancellation right - and you must give notice of it in writing, or your right to payment is at risk. VariationFlow sends the compliant notice automatically and records the client’s request to start straight away.
Building-control evidence built in
Ready-made checklists for extensions and loft conversions photograph everything before it’s covered up - foundations, DPC, steels, insulation - so building control sign-off and the two-years-later argument are both already won.
Three steps, no new habits
- 1
Quote it, get a signed yes
Line items in, link out - by email or WhatsApp. The client accepts from their phone, the cancellation notice goes out automatically, and the job is created from the signed number.
- 2
Capture extras as they’re agreed
Sixty seconds on your phone: what was agreed, the price, photos, the client’s signature. Every extra lands on the running total the client can see.
- 3
Invoice without the argument
Send the client summary - photos, price, running total - with each invoice, and your bank details plus a pay-online link on the paperwork. Signed paper beats a remembered conversation, every time.
The Builder plan is £49 a month + VAT for domestic work, up to £100,000 a project. Working commercial too? On the VariationFlow plan you run both from the same account, and commercial projects keep the full contract machinery: NEC4 and JCT clocks, payment notices and the s.111 tracker.
The next “while you’re here” pays for itself
One recovered extra covers months of VariationFlow. Read the guide on charging for extras on domestic jobs - then stop doing them for free.