Free Tools for Contractors
Calculators & templates that pay for themselves
No signup. No email. Every tool on its own page — what it does, how it works, and the math behind it. Built for the trades.
Pricing & quoting
Know your numbers before you quote.
Markup & Margin Calculator
Enter your cost and target margin — get the exact price to charge, in markup % and margin % terms.
Most contractors undercharge because they think in markup when they should think in margin. Markup is what you…
Open tool →Hourly Rate Calculator
What your time actually costs once overhead, benefits, and unbillable hours are included.
Your hourly rate needs to cover more than your wage — it has to cover your overhead, your benefits, your truck…
Open tool →Invoice Generator
Line items, tax, totals, and a clean printable invoice in minutes — no signup.
A clean invoice is a faster payment. This generator turns your line items into a professional, printable invoi…
Open tool →Home Service Score
A 0–100 health score for your business — and the single highest-impact fix to make first.
You can't fix what you don't measure. This scorecard grades the habits that decide whether a home-service busi…
Open tool →Revenue leak calculators
See what slow replies are costing you.
Missed Call Calculator
Every unanswered call is a lost job. See exactly what missed calls cost you per month and per year.
Estimate calls per week, close rate, and average job value — it adds up the annual loss.
Open tool →Response Time Calculator
First response wins the job. See how much faster replies are worth in recovered jobs and revenue.
Monthly leads × average job value × close-rate lift from fast replies.
Open tool →Trade calculators
The everyday math of the trades — sized right, on the job, in seconds.
HVAC CFM Calculator
Free HVAC CFM calculator: room size, ceiling height, and air changes per hour → required CFM. Includes ACH guidance for living rooms, kitchens, and baths.
It's the same math HVAC techs do on every load calc: room volume × air changes per hour, divided by 60. You br…
Open tool →Duct Sizing Calculator
Free duct sizing calculator: enter your CFM and target velocity → exact round duct diameter plus the recommended standard size.
It's the quick field check: CFM ÷ velocity gives the duct cross-section, and that becomes the diameter. Branch…
Open tool →ACH Calculator
Free ACH calculator: room volume + system CFM → air changes per hour. Compare against the 3-4 ACH standard for living spaces.
This calculator takes the room volume and your measured or target CFM, and tells you the real ACH — plus how i…
Open tool →Concrete Calculator
Free concrete calculator: length × width × depth → cubic yards, plus exact 60-lb and 80-lb bag counts. The 10% waste rule included.
Enter the slab dimensions — length, width, depth — and get cubic yards for the truck order, plus bag counts if…
Open tool →Paint Calculator
Free paint calculator: surface area + coats → gallons of paint needed, with rough cost. Coverage rules for smooth vs textured surfaces included.
Standard coverage is 350 sq ft per gallon per coat. Textured surfaces eat paint much faster, and the calculato…
Open tool →Labor Cost Calculator
Free labor cost calculator: wage + payroll taxes + workers comp + benefits → the true hourly cost, and what you need to bill to break even.
This calculator shows the fully-burdened cost and what you actually need to bill per hour — the number most co…
Open tool →House Cleaning Cost Calculator
Free house cleaning cost calculator: sq ft, bedrooms, bathrooms, and frequency → a defensible price for standard or deep cleans.
It also factors recurring frequency — weekly and bi-weekly customers are worth keeping, so the calculator pric…
Open tool →Roof Replacement Cost Calculator
Free roof cost calculator: roof size in squares, price per square, tear-off, and pitch → a defensible ballpark for any shingle roof job.
It's a quoting starting point, not a substitute for a site measure — but it gets you in the right zip code bef…
Open tool →Gutter Estimate Calculator
Free gutter estimate calculator: linear feet, stories, and downspouts → a quick ballpark for seamless gutter installation jobs.
Seamless aluminum gutters run $5–9 per foot installed, and two-story work adds a real premium for the ladder a…
Open tool →Tree Removal Cost Calculator
Free tree removal calculator: height, access, and condition → a realistic price range. Includes stump grinding guidance and the factors that move the price.
A 40-ft tree in an open yard is a different job than the same tree leaning over the house. The calculator pric…
Open tool →Pressure Washing Cost Calculator
Free pressure washing calculator: driveway, patio, and house siding sq ft → a per-surface quote. Includes the going rates for each surface type.
It uses the going rates for each surface: driveways, patios, and house washing all price differently, and the …
Open tool →Like these tools? Prybar does this for you — automatically.
The line that answers every customer in seconds, books appointments, and follows up on estimates. $39/mo, cancel anytime.
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