How to Estimate a Paint Job in 6 Steps: Guide and Checklist

Estimating a paint job in 2026: price the surface, not the room

Estimating a paint job comes down to one habit: price the surface you have to cover, not the room you glanced at. Two houses the same size can sit thousands of dollars apart once you count texture, trim, and prep. The Bureau of Labor Statistics counted 342,200 painters in 2024 at a median wage of $23.40 an hour, so your crew rate must clear that wage and carry overhead, taxes, and profit on top. Build the quote on a real takeoff, not a gut number.

The estimate that almost cost Carlos his best painter

A painter named Carlos walked a 2,400 square foot colonial, did the math in his head, and quoted $4,800. Three days in, the crew found oil based enamel over old wallpaper glue, and nothing stuck. Every wall needed sanding, bonding primer, and two coats, and the textured ceilings drank paint. Carlos spent about 40 percent more on labor and 30 percent more on materials than he quoted, cleared around $3.50 an hour, and nearly lost his best guy. The work was fine. The estimate had no system behind it. The six steps below are that system.

The 6 steps to estimate a paint job

1. Measure every surface

   Most estimating errors start at measurement, because painters eyeball rooms and skip the openings. Measure each room’s perimeter, multiply by the ceiling height, subtract windows and doors, and do it room by room. Then measure the trim, where painters lose the most time: log base and crown in linear feet, count the doors, and flag six panel doors, which run two to three times slower than flat slabs.

2. Calculate paint quantities

   Buy paint off real coverage, not the best case number on the can. Smooth primed drywall covers about 350 to 400 square feet a gallon, light texture 300 to 350, heavy knockdown or popcorn 200 to 250, and rough siding, stucco, or brick far less. Plan two coats, three when you go dark to light. Divide square footage by the coverage rate, multiply by coats, add 5 to 10 percent for waste, and round up.

3. Price your materials

   Paint is the big line, but sundries add up. Contractor grade runs about $20 to $30 a gallon, mid range $35 to $50, premium $50 to $75, and specialty finishes higher. Open a contractor account at your paint store, since 20 to 40 percent off retail saves real money on a whole house. Budget another $150 to $300 for sundries like tape, rollers, brushes, caulk, and patching compound.

4. Estimate labor hours

   Labor is usually 60 to 70 percent of a paint job, so it makes or breaks the bid. Work from production rates: roughly 150 to 200 square feet an hour rolling smooth walls, slower on ceilings and trim. Then pad for reality, since high ceilings, occupied homes, and old trim each add 15 to 30 percent.

5. Price prep work separately

   Prep is where profit quietly disappears, because painters bury it in the price and never time it. Make prep its own line. Masking, patching nail holes, and wallpaper removal each take real hours, and exterior washing, scraping, and a primer coat can push prep to 30 to 50 percent of the job. One rule you cannot skip: on homes built before 1978, the EPA Renovation, Repair and Painting Rule requires lead safe certified work, so price testing and containment in.

6. Add overhead and profit markup

   Now make sure the job pays. Total your direct cost: loaded labor, materials, and any sprayer or lift rental. Loaded labor adds payroll taxes and workers comp, so a $22 painter really costs about $30 an hour. Add overhead, which most painters run at 15 to 25 percent, then a profit target, often 10 to 20 percent. A 40 to 50 percent markup on direct cost is common, so $6,000 of direct cost becomes roughly an $8,700 price. Present a written scope with good, better, and best paint options, and state what is excluded. Our guide on how to set your markup walks the math.

Estimate faster with SimplyWise

A careful takeoff protects your margin, but it should not cost you a whole evening. The SimplyWise Cost Estimator turns a job site photo into an itemized estimate in about 6 seconds, so you can price it against your real coverage and labor rates and hand it over before you leave. Price the job from a photo, then refine it with your measurements. The Receipt Scanner files every supply run and the Mileage Tracker logs the business miles the IRS lets you deduct. See the estimate mistakes that turn good paint jobs into unpaid labor. It is free to try.

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