How to Price an Interior Painting Job | Reddit & LinkedIn

You price from paintable square footage, not the floor area of the room. Measure wall length times ceiling height for walls, and length times width for ceilings, then subtract large openings like doorways and big windows. Count doors, windows, and linear feet of trim separately, because they paint at a completely different speed than open wall.

Production rates matter here. An open bedroom wall rolls fast, while a stairwell with tall cut-ins, a room full of built-ins, or heavy trim slows a painter to a crawl. Measuring by surface type instead of one room number is what separates an estimate that holds from one that loses money on the fiddly rooms.

On most interior jobs the paint itself is a minor share of the cost. The money is in labor, and within labor, prep and cut-in dominate. Filling nail holes, sanding, caulking gaps, patching drywall, priming stains, and masking floors and fixtures can take longer than the rolling. A surface in rough shape can double prep hours over a clean repaint.

That is why a walk-through beats a square-foot phone quote. You need to see wall condition, existing color versus new color, ceiling texture, and how much furniture will be in the way. Price the prep you actually see, give it its own line, and the client understands why two jobs of the same size can cost very different amounts.

For paint, a gallon covers roughly 350 square feet per coat on smooth walls, less on porous or textured surfaces. Multiply paintable area by coats, divide by 350, and round up. Add sundries: tape, plastic, caulk, spackle, and liners. A color change or a deep color usually means two coats, sometimes a primer coat too, so confirm coats before you price.

For labor, break the job into prep, cut-in, rolling, and trim, and assign hours to each at your loaded rate. Many painters carry internal production rates, such as square feet per hour for rolling and pieces per hour for doors, and lean on them to keep bids consistent. The estimate is only as good as those rates, so track real job times and refine them.

Trim and doors are slow, detailed work and should never be folded into a wall square-foot number. Price them by the piece or by linear foot: baseboards, casings, crown, and each door and window. Ceilings are their own line too, since overhead rolling and cutting-in are slower and harder than walls, especially on textured or high ceilings.

Specialty work deserves its own line as well: accent walls, high stairwell walls that need scaffolding, cabinet painting, or fine enamel finishes on trim. Calling these out protects your production rate and gives the client clear choices. It also makes upsells transparent, since they can see exactly what the premium finish adds.

Add your markup, painting often carries 25 to 40% over a loaded labor rate given how labor-heavy it is, and present one itemized, signable estimate that shows walls, ceilings, trim, prep, and coats. Send it fast, because painting clients gather several quotes and the quick, clear one stands out.

ContractShield builds this from photos in about 25 minutes. Snap each room, say or type the scope and coats, and the AI drafts prep, paint, and labor lines from your own templates, each marked as your template or an AI estimate with no invented rates. It then invoices a deposit and a completion payment and sends automatic reminders if the client runs late.