Variations agreed on a handshake
Client changes their mind halfway through? Capture a signed variation with the price agreed before the extra work starts.
The job management app for builders
Estimate extensions and refurbs, keep variations signed and under control, track costs, and invoice in stages — all from one app.
Free to start · No card · No download needed — works in your browser
Sound familiar?
The admin headaches every builder knows — solved.
Project costs disappearing into the job
Log materials, plant, and labour against each project as you go, so you know your real margin — not just the quoted one.
Cash flow on long projects
Invoice in stages with professional, itemised invoices and online card payment, so money comes in as the work progresses.
Built around a builder’s working day
Estimates & quotes for big jobs
Build detailed estimates for extensions, loft conversions, and refurbs, and convert them to invoices without retyping.
Signed variations & sign-offs
Every change and every completed stage gets a digital signature, stored as a PDF against the project.
Job scheduling across the team
Plan weeks ahead in the job diary and share job details with the people who need them.
Expense tracking per project
Merchant receipts, skip hire, plant — logged in seconds and totalled per job.
Need the full tour? See everything the TradePlanr app does including digital signatures and job sign-offs.
Not the one on the tools? There’s a version of this page for whoever runs the office.
Got engineers on the books? TradePlanr for building companies.
Free calculators every builder can use
No sign-up, no subscription — the same trade calculators built into the TradePlanr app, free on the web.
Running Cost
What an appliance costs to run at a given tariff.
Unit Converter
Common trade unit conversions.
Markup & VAT
Sell price from cost, markup and VAT.
Job Price / Quote Builder
Build a quote from materials, labour and margin.
Day Rate ↔ Hourly Rate
Convert between hourly, day, week and year.
CIS Tax Deduction
CIS deducted and net pay on a subcontractor invoice.
VAT Flat Rate vs Standard
Compare VAT owed on the flat rate and standard schemes.
Self-Employed Tax & NI
Estimate Income Tax, Class 4 NI and take-home from your annual profit.
VAT Registration Threshold
How close your rolling turnover is to the £90,000 VAT registration threshold.
What Should I Charge?
Work back from the income you want to the day and hourly rate you need to charge.
Late Payment Interest
Statutory interest and compensation you can claim on an overdue commercial invoice.
Deposit & Staged Payments
Split a job into a deposit and staged payments.
Retention (Commercial)
Retention held on a contract and when each half is released.
Mileage / Fuel per Job
Mileage claim or actual fuel cost for a journey.
Real Hourly Rate
Your true hourly rate once travel, quoting and admin time are counted.
“Finally, an app that actually understands what tradesmen need. Simple, fast, and does exactly what it says.”
James Foster
Builder, Birmingham
Join builders across the UK using TradePlanr
Start free in your browser and set up your first job in minutes — no download needed.