Why Most Painters Underbid (and Don't Realize It)
Ask ten painting contractors how they price a job and you'll get ten different answers. Some quote by the square foot, some by the room, some take a guess based on how the homeowner is dressed. The problem isn't that any single method is wrong. It's that most painters price from the gut, anchor to whatever the last guy charged, and never check whether the number actually covers their costs and pays them a real wage.
Underbidding is quiet. You don't find out you lost money on a repaint until tax season, when the deposits came in fine but there's nothing left after paint, gas, payroll, and the second coat you didn't account for. By then you've already booked three more jobs at the same bad price. The fix is to build your price from the ground up so every estimate is profitable before you ever hand it to the customer.
This guide walks through how to measure a job, calculate what it truly costs you, add a markup that pays your overhead and profit, and present the number with confidence. The math works the same whether you're a solo painter doing interiors or a three-crew shop bidding commercial exteriors.
Measure the Job, Not the Floor
Painters get paid for wall and ceiling surface, not floor area, so measuring the footprint of a room is the wrong starting point. For interior work, measure the perimeter of each room and multiply by ceiling height to get wall surface, then add the ceiling area if you're painting it. A 12-by-15 bedroom with 8-foot ceilings has 432 square feet of wall, plus 180 of ceiling. Subtract roughly half the area of large openings like sliding doors or picture windows, but don't bother deducting standard doors and windows. The cut-in around them eats up the time you'd save.
Trim, doors, and cabinets are priced separately because they are labor-heavy relative to their surface. Count linear feet of baseboard, crown, and casing, count the doors, and price those as line items. A six-panel door takes far longer to coat well than the equivalent square footage of flat wall.
For exteriors, measure the painted face of the building and add for the difficulty of the surface. Lap siding, board-and-batten, stucco, and brick all soak up different amounts of product and time. Height matters too: a second or third story means ladders, scaffolding, or a lift, and that slows everyone down. Satellite measurement tools can pull the building dimensions before you drive out, which saves a site visit on jobs you may not win.
Calculate Your True Cost Before You Add a Dime of Profit
Every accurate estimate is built from three buckets: materials, labor, and overhead. Get these right and the price almost writes itself.
Materials are the easy part once you know your spread rate. A gallon of quality interior paint covers roughly 350 to 400 square feet per coat, but real walls need primer on patches, two coats for color changes, and extra for porous or dark surfaces. Always price two coats unless the customer is repainting the same color over a clean surface. Add caulk, tape, plastic, sandpaper, roller covers, and the can of paint you'll inevitably need for touch-ups. A good rule is to add ten to fifteen percent to your raw paint number for sundries.
Labor is where money is won or lost. Track your real production rates: an experienced painter rolls about 150 to 200 square feet of wall per hour including cut-in, but trim, doors, and detailed cabinetry run far slower, sometimes one door every 30 to 45 minutes with proper sanding and two coats. Multiply your hours by a fully burdened labor rate, not just the hourly wage. Burdened cost includes payroll taxes, workers' comp, and the windshield time getting to the site.
Overhead is the bucket painters forget. Your truck payment, insurance, phone, software, fuel, advertising, and the hours you spend quoting jobs you don't win all have to be paid by the jobs you do win. Add up your monthly overhead, divide by the billable hours your crew actually produces in a month, and you get an overhead cost per labor hour. Bolt that onto every estimate.
A Simple Pricing Formula That Holds Up
Once you have your costs, the formula is straightforward. Add materials, labor, and overhead to get your total cost. Then apply a profit margin on top. Many painting businesses target a 30 to 50 percent gross margin on residential repaints, which means dividing your total cost by 0.65 to 0.70 to reach the price, not just adding 30 percent to the cost. Those are different numbers, and confusing markup with margin is one of the most common reasons painters come up short.
Here is a worked example. Say an interior repaint costs you 400 dollars in materials, 1,200 dollars in burdened labor, and 300 dollars in overhead, for a total cost of 1,900 dollars. To hit a 35 percent margin, divide 1,900 by 0.65, which gives a price of about 2,925 dollars. That price covers your costs, pays your overhead, and leaves roughly 1,025 dollars of gross profit to fund growth and your own paycheck.
Build a small library of these calculations for the jobs you do most: standard bedroom, full interior, exterior on lap siding, kitchen cabinet refinish. Over time you'll be able to walk a house, jot down room counts, and produce a defensible price on the spot without guessing.
- Total cost = materials + burdened labor + overhead allocation
- Price = total cost divided by (1 minus your target margin)
- Aim for 30 to 50 percent gross margin on residential repaints
- Never quote a single coat unless the surface and color truly allow it
- Price trim, doors, and cabinets as separate line items, not by wall square footage
Adjust for the Factors That Actually Drive Cost
Two jobs with identical square footage can cost wildly different amounts to deliver, so your price has to flex with the real conditions on site. Prep is the biggest variable in painting. A clean, recently painted wall needs almost no prep, while peeling exterior siding, water-stained ceilings, wallpaper removal, or heavy patching can double your labor before a drop of finish coat goes on. Walk the job and add prep as its own line so the customer sees what they're paying for.
Color and product choice matter too. Deep reds and bright colors often need an extra coat or a tinted primer. Premium or specialty coatings, cabinet-grade enamels, and elastomeric exterior products cost more per gallon and sometimes more in labor. Charge accordingly rather than absorbing the difference.
Access and height change everything on exteriors and stairwells. Vaulted ceilings, two-story foyers, steep roof lines, and tight setbacks all add time and equipment. Occupied homes with furniture to move and pets underfoot run slower than empty new construction. Build a short list of surcharges for these conditions so you apply them consistently instead of remembering them only after a painful job.
Present the Price So You Win the Right Jobs
A professional, itemized quote does more to win work than the lowest number does. Homeowners are nervous about painters who scribble a total on the back of a card, and they happily pay more for a contractor who clearly spells out the scope: which rooms, how many coats, what prep is included, what brand and sheen, and what is explicitly excluded. A clear quote also protects you when the customer asks you to paint the closet you never bid.
Offer good-better-best options when it fits. A base bid with one coat over the same color, a standard two-coat repaint, and a premium package with full trim and accent walls lets the customer choose their budget instead of choosing between you and the cheaper guy down the street. Many painters find their average ticket rises simply because they stopped quoting a single take-it-or-leave-it number.
Speed wins jobs. The contractor who emails a polished, branded estimate the same day usually beats the one who promises to get back to the homeowner next week. If you can capture measurements, generate the quote, and send it for online approval before you leave the driveway, you'll close more of the work you bid and look more professional doing it.
Stop Re-Pricing the Same Job Over and Over
Once your pricing is dialed in, the next leak is administrative. Painters lose real money chasing deposits, forgetting to invoice the final balance, and re-keying the same customer's details every spring when they call for the next room. Recurring and repeat painting work, especially with property managers, landlords, and commercial accounts, deserves a system that remembers the customer, the colors used, and the last price so you can quote the next job in minutes.
Automatic invoicing the moment a job is marked complete closes the gap between finishing the work and getting paid. Pair that with online payment by credit card, Apple Pay, or Google Pay and most of your invoices clear in days instead of weeks. A crew app that lets your painters mark progress, snap before-and-after photos, and log materials from the job site keeps your office records accurate without a single phone call back to the shop.
Price With Confidence Using GreenRoute
GreenRoute brings the whole pricing-to-paid workflow into one place built for field-service businesses like yours. Satellite property measurement helps you size up exterior jobs before you visit, professional quotes with good-better-best options go out the same day for online approval, and invoices generate automatically when a job is completed so you never forget to bill the final coat. Your crews carry a mobile app that works even where there's no signal, and customers pay online without you chasing a check.
There are no per-user fees, ever, so adding painters to your crew never raises your software bill. You can start on the free Starter plan, and the Professional plan is just 10 dollars a month when you're ready for the full toolkit, including scheduling, drive-route planning, a customer CRM, and recurring service automation for your repeat accounts. Build your prices right, send them fast, and get paid on time. That's how a painting business keeps the profit it earns.