Eight free calculators for rates, quotes, VAT, job profit, heat loss, and solar and battery sizing. No sign-up needed.
Work out your rates, price up materials and quotes, add VAT, and check what a finished job made.
Turn the salary you want, your overheads and the hours you can actually bill into the rate you need to charge.
Work out your rate →What to charge customers for an employee or subcontractor once wages, employer costs and your margin are covered.
Price your team →Add your markup to what a material cost you, or work back from the price you want to charge to the margin it leaves.
Mark up materials →Put labour, materials and other costs together with your markup and get a total you can quote on the spot.
Build a quote →Add VAT to a net figure or take it back out of a gross one, at the 20%, 5% or 0% rate.
Add or remove VAT →Set what you invoiced against the hours and materials the job really took and see what it made, or lost.
Check a finished job →Room-by-room heat loss for heating engineers and heat pump installers.
Walk the house room by room, enter the sizes and fabric, and get whole-house heat loss with indicative boiler, radiator and heat pump sizing. Export the survey to Excel.
Start a survey →Solar and battery sizes compared for a home's usage and roof. Send it to customers before a survey.
Compare solar and battery sizes hour by hour for a home's postcode, usage and roof, and see what each would save. Share the results with a link.
Size a system →For the background on pricing, VAT and record-keeping, see the articles.
A calculator tells you what to charge. It can't tell you afterwards whether you actually made any money on the job, once the extra day and the second trip to the merchant are counted. ProWorks can, because the quote, the hours and the materials all sit on the same job. Free for 30 days, no card required.