Plumbing & Electrical Tools & Templates
Plumbing & Electrical calculators
Pipe Volume Calculator
Find how many gallons of water a run of pipe holds, from its length and inside diameter.
Electrical Load Estimator
A ballpark general lighting and appliance load estimate from square footage - not a code calculation.
Plumbing & Electrical templates
Business & Pricing
The same pricing and profitability math, useful on any job.
Profit Margin & Markup Calculator
Find your real margin on a job, or work backward from a target margin to the price you need to charge.
Hourly & Day Rate Calculator
Work out the rate you actually need to charge to hit your income goal after overhead.
True Job Cost / Break-Even Calculator
Roll materials, labor, equipment, and overhead into the real cost - and break-even price - of a job.
Cash Flow Gap Calculator
See how much of your own cash is tied up fronting jobs before clients pay.
Change Order Cost Calculator
See how much revenue informal, unbilled change orders are actually costing you per year.
Employee vs. Subcontractor Cost Calculator
Compare the true annual cost of an employee against a subcontractor for the same hours.
Estimate Template
A clean, print-ready estimate layout: scope, pricing, terms, and signature line.
Invoice Template
A straightforward invoice layout covering line items, payment terms, and remit-to details.
Change Order Template
Document a scope change, its price, and get sign-off before the work happens.
Scope of Work Template
A one-page scope format that spells out what's included (and what isn't) to prevent disputes.
Service Agreement Template
A basic services agreement covering scope, payment, timeline, and cancellation terms.
Built for plumbing and electrical work
These tools give you quick, ballpark numbers. Punchlist builds the same math and paperwork directly into your bids and job records, tied to your actual costs.