Planning & estimates
Installation cost estimator
Build a project subtotal from your own labour rate, materials and other costs.
Result
Installation costReady
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Enter your values and press Calculate result.Formula
Subtotal = hours × hourly rate + materials + other costsWithin this model
An arithmetic subtotal using only your entered amounts. Rates are examples, not market estimates. Use a consistent tax basis throughout; no tax, contingency or other charge is added automatically. Does not estimate the time or materials needed for electrical work.
What the numbers mean
Enter your planned labour time and agreed rate, then add your own materials and other costs. The subtotal includes exactly these components. A project quotation may contain further charges and conditions.
A worked example
8 hours at £40/hour, plus £250 of materials and £30 of other costs, gives a subtotal of £600.
Validation, precision and limitations