Interior painting runs $1.50–$4.50 per sq ft of wall surface in most markets, or $2–$6 per sq ft of floor area. A typical 3-bedroom, 2-bath house comes in at $5,000–$10,000 depending on condition, finish level and whether trim and ceilings are included. Your number has to come from your real costs, not the average.
- Measure every surface type
- Price labor + materials + overhead
- Add 35–45% gross margin
- Specify scope in writing
Interior painting is more complex to price than exterior because you're dealing with more surface types (walls, ceilings, trim, doors, cabinets), more prep considerations (furniture, masking, floor protection), and customers who often don't realize how different a fresh interior repaint is from whatever they last saw done on YouTube. Getting the price right requires measuring properly, knowing your real costs, and charging for every surface you're touching.
The numbers in this guide are illustrative. Your market, your overhead and your production speed are what actually set your rates. Use this as a framework, not a price list.
Interior vs exterior: the key differences
Exterior painting is simpler to measure (it's mostly wall surface plus trim) but harder to execute (weather, access, surface prep). Interior is the opposite: easier to execute but more complicated to scope and price. The main differences that affect your numbers:
- More surface types. Walls, ceilings, trim, doors, window sills, cabinets, and closets all need to be priced separately because they take different amounts of time and different products.
- More prep per square foot. Moving furniture, laying drop cloths, masking baseboards and casings, and protecting floors takes time that doesn't exist in an exterior job. Interior prep often runs 15–25% of total labor.
- Finish quality is more visible. Customers are in the space every day. Every brush mark and lap line shows under interior light. Your production rate may be slower than exterior; that needs to be in your price.
- Color changes cost more. Going from a dark tone to white, or painting an accent wall in a third color, adds masking time and usually an extra coat. If it's not in the price, it comes out of your margin.
The core formula
Every interior painting price is built from the same five numbers. If you know all five for a job, you can price it accurately in minutes. For a deeper breakdown of each component, see our guide on how to estimate a paint job.
The critical step is measuring all paintable surface area before you calculate anything else. For walls: measure perimeter × ceiling height, then subtract doors (roughly 20 sq ft each) and windows (roughly 15 sq ft each). For ceilings: floor area. For trim: linear feet of baseboard, casings, crown, chair rail and any other profiles. Price each surface type at its own rate — trim takes longer per square foot than open walls.
Per-room typical rates
These ranges are for walls only, standard prep, single color, and two coats. They reflect mid-market U.S. labor rates. Adjust for your market and your shop's overhead.
Ranges reflect variation in market, condition and ceiling height. High ceilings (9ft+), significant patching, or difficult access push you toward the top of each range and beyond.
What drives cost up (and how much)
Most interior painting disputes come from scope items that weren't priced clearly. These are the factors that move your cost materially — know them before you quote, not after the job starts.
Ceiling height
Standard 8-foot ceilings are baseline. Every foot above that adds roughly 10–15% to your wall labor because you're repositioning ladders constantly and the work is harder on the body. A 10-foot ceiling isn't 25% more wall area — it's 25% more wall area plus significantly more setup time. Vaulted or cathedral ceilings can run two to three times the labor of a flat 8-foot room of the same floor area.
Color changes
Painting over a dark color with a light one, or blocking an accent wall from surrounding colors, costs real time. A dark-to-light color change typically needs a coat of primer plus two finish coats instead of two finish coats. That's 50% more material and 40–50% more labor for those surfaces. An accent wall in a third color adds at least an hour of masking. Price these explicitly rather than absorbing them.
Trim and doors
Trim is priced by linear foot, not square foot, and it takes longer per paintable inch than open wall. Typical trim labor runs $1.50–$3.00 per linear foot, depending on profile complexity, whether it needs sanding, and whether you're brushing or spraying. Doors are priced per door ($50–$120 per door for both sides) and whether they're solid or hollow-core changes the time meaningfully.
Prep and condition
A house that hasn't been painted in 15 years, has surface cracks, water stains, nail pops and texture repairs is not the same job as a 3-year-old house that just needs a color refresh. Heavy patching and skim coating can add $300–$1,000+ to a whole-house price and should be quoted as a separate line or a separate project phase entirely.
Never bury prep cost in your paint price. Itemize prep as its own line so the customer understands what they're paying for. Hidden prep leads to scope disputes; visible prep demonstrates your professionalism and protects your margin if the condition is worse than it looked on the walk-through.
Number of colors and finish levels
Each additional color means more masking, more lid changes and more careful cutting in. A job with four colors isn't four times harder, but it might be 20–40% harder than the same job in one color. High-gloss paint requires more surface preparation (sanding and priming) because it magnifies imperfections — if a customer wants semi-gloss or gloss trim, make sure your prep scope matches.
Materials breakdown
Interior paint varies widely in quality, and quality affects both coverage and the number of coats needed. A premium paint that covers in two coats is often cheaper total than a budget paint that takes three.
Materials typically represent 15–25% of total job cost. If yours are consistently above 30%, revisit whether customers are supplying paint and whether you're accounting for the time cost of working with unfamiliar products.
Overhead and profit margin
Your labor rate is not your hourly wage. It has to cover everything the business costs to run: insurance, vehicle, tools, phone, marketing, estimating time that doesn't get billed, and slow weeks. Most painting businesses find that overhead runs 20–30% on top of direct labor cost.
Your rate has to cover the hours you don't bill, not just the hours you do.
Target gross margin for a healthy painting business is 40–50%. That means for every dollar you charge, 40–50 cents covers your overhead and profit before tax. Net profit after all expenses should be 15–25% for a well-run small shop. If you're not hitting those numbers, the fix is usually in your rates, your overhead structure, or both — not in working more hours.
Price it right, every time.
BrushBid calculates the estimate from sq ft and production rates, then turns it into a proposal you can send from the driveway. Start free.
Full worked example: 3-bed, 2-bath house
Here's how a complete interior pricing breakdown looks for a typical suburban house — 1,450 sq ft floor area, 8-foot ceilings, one color throughout (walls), trim and doors included, good condition with minimal patching.
All numbers illustrative. Your market, production rate, overhead structure and product costs will produce a different number. The structure is what matters.
Notice that the quote rounds to a clean number. It's fine to land on $12,500 rather than presenting $12,783 — customers expect a rounded figure, and the exact cost math is yours to know, not theirs. What matters is that the number behind your quote is defensible if the scope goes sideways.